{"id":2373,"date":"2025-12-09T03:52:35","date_gmt":"2025-12-09T03:52:35","guid":{"rendered":"https:\/\/lightingrecipe.com\/?p=2373"},"modified":"2025-12-09T03:52:50","modified_gmt":"2025-12-09T03:52:50","slug":"designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil","status":"publish","type":"post","link":"https:\/\/lightingrecipe.com\/zh\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/","title":{"rendered":"“Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A “Threshold Cheat Sheet” + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u3010Part Two\u3011<\/strong> A \u201cThreshold Cheat Sheet\u201d + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design<\/strong><\/h4>\n\n\n\n

In many project discussions, I often hear designers express this confusion:
“I roughly know that the lighting should be \u2018healthy\u2019 and \u2018human-centered,\u2019 but when it comes to concrete numbers, I feel completely lost.”<\/em><\/p>\n\n\n\n

On one side, there\u2019s a bookshelf full of standards and research papers. On the other, there\u2019s the overwhelming project schedule and client pressure. What designers truly need is a framework that\u2019s easy to reference and apply:<\/p>\n\n\n\n

    \n
  • Telling you what to look at first, and what to look at next<\/strong><\/li>\n\n\n\n
  • Showing you what is \u2018enough\u2019 and what is clearly insufficient<\/strong><\/li>\n<\/ul>\n\n\n\n

    In this edition, we attempt to provide that framework for designers using 9 healthy light guidelines + a \u201cthreshold cheat sheet.\u201d<\/strong><\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    1. Build the Framework Before Talking Style<\/h4>\n\n\n\n

    Whether it\u2019s interior design, architecture, or lighting design, we\u2019re used to starting from concepts<\/strong> and styles<\/strong>:<\/p>\n\n\n\n

      \n
    • \u201cI want this area to feel quiet and warm.\u201d<\/li>\n\n\n\n
    • \u201cThat area should feel high-tech and futuristic.\u201d<\/li>\n\n\n\n
    • \u201cHere, the vibe should be Instagram-worthy.\u201d<\/li>\n<\/ul>\n\n\n\n

      But when it comes to health, sleep, attention, or mood<\/strong>, relying on \u201cfeelings\u201d alone is clearly not enough.<\/p>\n\n\n\n

      Take the lighting sections in international mainstream healthy building standards as an example. The lighting-related clauses can generally be summarized into four levels<\/strong>:<\/p>\n\n\n\n

      L01\u2013L03: Is there enough and proper light?<\/strong><\/h5>\n\n\n\n
        \n
      • L01 Light Exposure<\/strong> (basic light dose)<\/li>\n\n\n\n
      • L02 Illuminance for Visual Tasks <\/strong>(Eh)<\/li>\n\n\n\n
      • L03 Circadian Light Exposure<\/strong> (Ev \/ EML related to circadian rhythm)<\/li>\n<\/ul>\n\n\n\n
        L04\u2013L07: See clearly, and comfortably<\/strong><\/h5>\n\n\n\n
          \n
        • Glare control, brightness contrast and balance, and key visual areas such as stairways and pathways<\/li>\n<\/ul>\n\n\n\n
          L08\u2013L09: Light source quality and control<\/strong><\/h5>\n\n\n\n
            \n
          • Spectrum and color rendering<\/li>\n\n\n\n
          • Flicker and short-term visible flicker risk<\/li>\n\n\n\n
          • Color consistency and long-term stability<\/li>\n\n\n\n
          • Scene and adaptive control strategies<\/li>\n<\/ul>\n\n\n\n
            Cross-cutting considerations: \u201cTimeline\u201d and \u201cUser Differences\u201d<\/strong><\/h5>\n\n\n\n
              \n
            • Day vs. night, weekdays vs. weekends<\/li>\n\n\n\n
            • Adults vs. children, office vs. healthcare, hotel vs. residential<\/li>\n<\/ul>\n\n\n\n

              In other words:
              Healthy light design is not about \u201cadding a few more lamps\u201d or \u201cbuying a few smart switches.\u201d<\/strong>
              It\u2019s about finding a logical path between Quantity (illuminance), Quality (spectrum), Time (timeline), and People (users).<\/strong><\/p>\n\n\n\n

              \"\"<\/figure>\n\n\n\n

              2. Designer\u2019s \u201cThreshold Cheat Sheet\u201d: No Need to Memorize Every Clause, Just Remember the Key Anchors<\/h4>\n\n\n\n

              The numbers below are not absolute values<\/strong>, but serve as anchor points<\/strong> for judging direction, persuading clients, and guiding brand teams during a project. You can put them on a small card for your desk or notebook.<\/p>\n\n\n\n

              \n\n\n\n
              1. L01 Light Exposure: At Least \u201cEnough\u201d<\/strong><\/h5>\n\n\n\n

              For areas with long-term occupancy (offices, classrooms, etc.), daytime vertical illuminance at eye level (Ev):<\/p>\n\n\n\n

                \n
              • Near windows: 250\u2013300 lx or higher<\/strong><\/li>\n\n\n\n
              • Interior areas: 150\u2013200 lx minimum<\/strong><\/li>\n\n\n\n
              • On cloudy days, in winter, or in north-facing buildings:
                \u201cOnly turning on half the lights\u201d is usually far from sufficient. Use measurements to see how much artificial lighting is needed to reach a truly alert level.<\/li>\n<\/ul>\n\n\n\n

                One line summary:<\/strong>
                “Seeing enough during the day does not mean circadian stimulation is sufficient.”<\/em><\/p>\n\n\n\n

                \n\n\n\n
                2. L02 Illuminance for Visual Tasks: The Task Surface Must Do Justice to the Task<\/strong><\/h5>\n\n\n\n
                  \n
                • Office \/ design workstations: Eh \u2265 500 lx<\/strong><\/li>\n\n\n\n
                • Home \/ children\u2019s desks: Eh 300\u2013500 lx<\/strong><\/li>\n\n\n\n
                • Corridors \/ circulation areas: Eh 50\u2013200 lx<\/strong><\/li>\n<\/ul>\n\n\n\n

                  More importantly:<\/p>\n\n\n\n

                    \n
                  • Don\u2019t just look at the maximum value \u2014 also check: average, minimum, and uniformity (min\/avg)<\/strong><\/li>\n<\/ul>\n\n\n\n

                    Practical note:<\/strong>
                    Lighting only a few \u201cspots\u201d while other areas rely on intuition often results in \u201cgood-looking renderings, but uncomfortable real-world experience.\u201d<\/p>\n\n\n\n

                    One line summary:<\/strong>
                    “Task surfaces must be bright enough and uniform enough.”<\/em><\/p>\n\n\n\n

                    \n\n\n\n
                    3. L03 Circadian Light Exposure: The Day Needs a \u201cMain Line\u201d<\/strong><\/h5>\n\n\n\n

                    Circadian-related metrics (e.g., EML \/ m-EDI) often seem complicated. From a design perspective, focus on two things:<\/p>\n\n\n\n

                      \n
                    • Daytime:<\/strong> Define a clear \u201cmain period\u201d for alertness\n
                        \n
                      • Example: 09:00\u201312:00 Ev and circadian stimulation should be noticeably higher than early morning or before closing.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                      • Evening:<\/strong> Intentionally \u201cwind down\u201d\n
                          \n
                        • 1\u20132 hours before sleep, lower illuminance and color temperature to signal that it\u2019s time to rest.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

                          One line summary:<\/strong>
                          “Keep people truly alert during the day, and truly able to sleep at night.”<\/em><\/p>\n\n\n\n

                          \n\n\n\n
                          4. L07 Brightness Balance & Contrast: Avoid Extreme Bright-to-Dark Fluctuations<\/strong><\/h5>\n\n\n\n

                          For visual comfort, avoid two extremes:<\/p>\n\n\n\n

                            \n
                          1. Entire space uniformly bright with no layers (too flat)<\/li>\n\n\n\n
                          2. Large brightness difference between work surface and background (too extreme)<\/li>\n<\/ol>\n\n\n\n

                            Practical guideline:<\/strong><\/p>\n\n\n\n

                              \n
                            • Work surface vs. surrounding environment brightness ratio: roughly 1:0.5 \u2013 1:3<\/strong><\/li>\n\n\n\n
                            • Temporary contrast increase can guide vision or emphasize focus<\/li>\n\n\n\n
                            • But for long-term work, study, or reading areas, extreme contrast will cause fatigue and complaints<\/li>\n<\/ul>\n\n\n\n

                              One line summary:<\/strong>
                              “Moderate contrast creates layers; excessive contrast creates torture.”<\/em><\/p>\n\n\n\n

                              \n\n\n\n
                              5. L08 Light Source Quality: Don\u2019t Let Poor Light Ruin Good Design<\/strong><\/h5>\n\n\n\n

                              Light source quality may seem like an \u201cengineering\u201d or \u201cproduct\u201d issue, but designers can gain significant influence by understanding it. Key anchor points:<\/p>\n\n\n\n

                                \n
                              • Color Rendering:<\/strong>\n
                                  \n
                                • CRI \u2265 90, or TM-30: Rf \u2265 90, Rg close to 100<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                                • Color Consistency:<\/strong>\n
                                    \n
                                  • Indoor spaces: SDCM < 5, to avoid noticeable color drift<\/li>\n<\/ul>\n<\/li>\n\n\n\n
                                  • Flicker:<\/strong>\n
                                      \n
                                    • Flicker < 20%, SVM < 0.6, Pst LM < 1.0<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n

                                      These numbers are based on research and standards, but for designers, knowing them gives you the confidence to say \u201cno\u201d to clients or suppliers when specifications fall short.<\/strong><\/p>\n\n\n\n

                                      \"\"<\/figure>\n\n\n\n

                                      3. The Purpose of Tools Is Not to Show Off, but to Make This Logic Actionable<\/h4>\n\n\n\n

                                      Many designers, when facing measurement equipment, often think:
                                      “Will this be complicated? Do I have to become an engineer?”<\/em><\/p>\n\n\n\n

                                      In fact, tools that are truly suitable for designers should allow you to:<\/p>\n\n\n\n

                                        \n
                                      • Press a button and see Eh \/ Ev \/ CCT \/ EML<\/strong><\/li>\n\n\n\n
                                      • Automatically calculate min \/ avg, contrast, and flicker metrics<\/strong><\/li>\n\n\n\n
                                      • Even provide preliminary assessments based on WELL clauses<\/strong><\/li>\n<\/ul>\n\n\n\n

                                        When LRS collaborated with various manufacturers to develop In.Licht Ultra \/ Pro<\/strong>, the goal was to turn these \u201cseemingly complex parameters\u201d into information designers can quickly read and act on onsite<\/strong>, rather than an additional burden.<\/p>\n\n\n\n

                                        The real point is not how expensive your equipment is, but whether you can clearly explain to your client<\/strong>:<\/p>\n\n\n\n

                                          \n
                                        • \u201cWhy should the lights be arranged this way?\u201d<\/li>\n\n\n\n
                                        • \u201cWhy is this space worth a bit more budget?\u201d<\/li>\n<\/ul>\n\n\n\n
                                          \"\"<\/figure>\n\n\n\n

                                          4. What Can LRS Do for Design Teams?<\/h4>\n\n\n\n

                                          In many companies and organizations, the understanding of light across design, product, and marketing teams is often fragmented:<\/p>\n\n\n\n

                                            \n
                                          • Design<\/strong> focuses only on effect and atmosphere<\/li>\n\n\n\n
                                          • Product<\/strong> focuses only on parameters and cost<\/li>\n\n\n\n
                                          • Marketing<\/strong> focuses only on story and selling points<\/li>\n<\/ul>\n\n\n\n

                                            When collaborating with lighting brands, real estate groups, and design agencies, LRS typically conducts three types of workshops or internal trainings<\/strong>:<\/p>\n\n\n\n

                                            1. Build a \u201cHealthy Light Framework\u201d for Design Teams<\/strong>
                                            Using L01\u2013L09 and the \u201cThreshold Cheat Sheet,\u201d<\/strong> we help integrate scattered knowledge into a practical, actionable design logic<\/strong>.<\/p>\n\n\n\n

                                            2. Redefine \u201cLight Formula\u201d Language for Product & R&D Teams<\/strong>
                                            Move beyond just \u201c3000K \/ 4000K \/ 5000K\u201d to scene-based vocabulary<\/strong> like \u201csuitable for children\u2019s learning, healthcare spaces, or night-shift offices.\u201d
                                            This helps brands clearly explain to the market who the product serves and what problem it solves<\/strong>.<\/p>\n\n\n\n

                                            3. Build a Unified External Narrative for Marketing & Leadership Teams<\/strong>
                                            Elevate \u201chealthy light\u201d from a technical term to a long-term brand and business pillar<\/strong>.
                                            Communicate with clients, partners, and associations using rigorous yet understandable language<\/strong>.<\/p>\n\n\n\n

                                            If your company or organization is considering:
                                            “How can we systematically upgrade our team\u2019s healthy light capability?”<\/em>
                                            LRS is happy to work with you to customize a training and co-creation session<\/strong> that truly translates into everyday design practice, based on your project type and team structure.<\/p>\n\n\n\n

                                            \n\n\n\n

                                            [Next Edition Preview]<\/strong>
                                            In the next article, we will explore project practice and business models<\/strong>: how designers can move from a single delivery to long-term \u201clight environment stewardship\u201d<\/strong> when light can be measured and verified:<\/p>\n\n\n\n

                                              \n
                                            • How to apply FES (Field Evaluation System)<\/strong> thinking in real projects<\/li>\n\n\n\n
                                            • How to extend one-time lighting design into a Light as a Service<\/strong> model<\/li>\n\n\n\n
                                            • What new opportunities this opens for designers, lighting companies, and clients<\/li>\n<\/ul>\n\n\n\n
                                              \"\"<\/figure>\n\n\n\n

                                              <\/p>\n","protected":false},"excerpt":{"rendered":"

                                              \u3010Part Two\u3011 A \u201cThreshold Cheat Sheet\u201d + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design In many project discussions, I often hear designers express this confusion:“I roughly know that the lighting should be \u2018healthy\u2019 and \u2018human-centered,\u2019 but when it comes to concrete numbers, I feel completely lost.” On one side, there\u2019s a bookshelf full of standards and research papers. On the other, there\u2019s the overwhelming project schedule and client pressure. What designers truly need is a framework that\u2019s easy to reference and apply: In this edition, we attempt to provide that framework for designers using 9 healthy light guidelines + a \u201cthreshold cheat sheet.\u201d 1. Build the Framework Before Talking Style Whether it\u2019s interior design, architecture, or lighting design, we\u2019re used to starting from concepts and styles: But when it comes to health, sleep, attention, or mood, relying on \u201cfeelings\u201d alone is clearly not enough. Take the lighting sections in international mainstream healthy building standards as an example. The lighting-related clauses can generally be summarized into four levels: L01\u2013L03: Is there enough and proper light? L04\u2013L07: See clearly, and comfortably L08\u2013L09: Light source quality and control Cross-cutting considerations: \u201cTimeline\u201d and \u201cUser Differences\u201d In other words:Healthy light design is not about \u201cadding a few more lamps\u201d or \u201cbuying a few smart switches.\u201dIt\u2019s about finding a logical path between Quantity (illuminance), Quality (spectrum), Time (timeline), and People (users). 2. Designer\u2019s \u201cThreshold Cheat Sheet\u201d: No Need to Memorize Every Clause, Just Remember the Key Anchors The numbers below are not absolute values, but serve as anchor points for judging direction, persuading clients, and guiding brand teams during a project. You can put them on a small card for your desk or notebook. 1. L01 Light Exposure: At Least \u201cEnough\u201d For areas with long-term occupancy (offices, classrooms, etc.), daytime vertical illuminance at eye level (Ev): One line summary:“Seeing enough during the day does not mean circadian stimulation is sufficient.” 2. L02 Illuminance for Visual Tasks: The Task Surface Must Do Justice to the Task More importantly: Practical note:Lighting only a few \u201cspots\u201d while other areas rely on intuition often results in \u201cgood-looking renderings, but uncomfortable real-world experience.\u201d One line summary:“Task surfaces must be bright enough and uniform enough.” 3. L03 Circadian Light Exposure: The Day Needs a \u201cMain Line\u201d Circadian-related metrics (e.g., EML \/ m-EDI) often seem complicated. From a design perspective, focus on two things: One line summary:“Keep people truly alert during the day, and truly able to sleep at night.” 4. L07 Brightness Balance & Contrast: Avoid Extreme Bright-to-Dark Fluctuations For visual comfort, avoid two extremes: Practical guideline: One line summary:“Moderate contrast creates layers; excessive contrast creates torture.” 5. L08 Light Source Quality: Don\u2019t Let Poor Light Ruin Good Design Light source quality may seem like an \u201cengineering\u201d or \u201cproduct\u201d issue, but designers can gain significant influence by understanding it. Key anchor points: These numbers are based on research and standards, but for designers, knowing them gives you the confidence to say \u201cno\u201d to clients or suppliers when specifications fall short. 3. The Purpose of Tools Is Not to Show Off, but to Make This Logic Actionable Many designers, when facing measurement equipment, often think:“Will this be complicated? Do I have to become an engineer?” In fact, tools that are truly suitable for designers should allow you to: When LRS collaborated with various manufacturers to develop In.Licht Ultra \/ Pro, the goal was to turn these \u201cseemingly complex parameters\u201d into information designers can quickly read and act on onsite, rather than an additional burden. The real point is not how expensive your equipment is, but whether you can clearly explain to your client: 4. What Can LRS Do for Design Teams? In many companies and organizations, the understanding of light across design, product, and marketing teams is often fragmented: When collaborating with lighting brands, real estate groups, and design agencies, LRS typically conducts three types of workshops or internal trainings: 1. Build a \u201cHealthy Light Framework\u201d for Design TeamsUsing L01\u2013L09 and the \u201cThreshold Cheat Sheet,\u201d we help integrate scattered knowledge into a practical, actionable design logic. 2. Redefine \u201cLight Formula\u201d Language for Product & R&D TeamsMove beyond just \u201c3000K \/ 4000K \/ 5000K\u201d to scene-based vocabulary like \u201csuitable for children\u2019s learning, healthcare spaces, or night-shift offices.\u201dThis helps brands clearly explain to the market who the product serves and what problem it solves. 3. Build a Unified External Narrative for Marketing & Leadership TeamsElevate \u201chealthy light\u201d from a technical term to a long-term brand and business pillar.Communicate with clients, partners, and associations using rigorous yet understandable language. If your company or organization is considering:“How can we systematically upgrade our team\u2019s healthy light capability?”LRS is happy to work with you to customize a training and co-creation session that truly translates into everyday design practice, based on your project type and team structure. [Next Edition Preview]In the next article, we will explore project practice and business models: how designers can move from a single delivery to long-term \u201clight environment stewardship\u201d when light can be measured and verified:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[],"tags":[],"class_list":["post-2373","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"\n"Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A "Threshold Cheat Sheet" + Nine "Healthy Light Guidelines" to Build the Framework of Healthy Light Design -<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\""Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A "Threshold Cheat Sheet" + Nine "Healthy Light Guidelines" to Build the Framework of Healthy Light Design -\" \/>\n<meta property=\"og:description\" content=\"\u3010Part Two\u3011 A \u201cThreshold Cheat Sheet\u201d + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design In many project discussions, I often hear designers express this confusion:“I roughly know that the lighting should be \u2018healthy\u2019 and \u2018human-centered,\u2019 but when it comes to concrete numbers, I feel completely lost.” On one side, there\u2019s a bookshelf full of standards and research papers. On the other, there\u2019s the overwhelming project schedule and client pressure. What designers truly need is a framework that\u2019s easy to reference and apply: In this edition, we attempt to provide that framework for designers using 9 healthy light guidelines + a \u201cthreshold cheat sheet.\u201d 1. Build the Framework Before Talking Style Whether it\u2019s interior design, architecture, or lighting design, we\u2019re used to starting from concepts and styles: But when it comes to health, sleep, attention, or mood, relying on \u201cfeelings\u201d alone is clearly not enough. Take the lighting sections in international mainstream healthy building standards as an example. The lighting-related clauses can generally be summarized into four levels: L01\u2013L03: Is there enough and proper light? L04\u2013L07: See clearly, and comfortably L08\u2013L09: Light source quality and control Cross-cutting considerations: \u201cTimeline\u201d and \u201cUser Differences\u201d In other words:Healthy light design is not about \u201cadding a few more lamps\u201d or \u201cbuying a few smart switches.\u201dIt\u2019s about finding a logical path between Quantity (illuminance), Quality (spectrum), Time (timeline), and People (users). 2. Designer\u2019s \u201cThreshold Cheat Sheet\u201d: No Need to Memorize Every Clause, Just Remember the Key Anchors The numbers below are not absolute values, but serve as anchor points for judging direction, persuading clients, and guiding brand teams during a project. You can put them on a small card for your desk or notebook. 1. L01 Light Exposure: At Least \u201cEnough\u201d For areas with long-term occupancy (offices, classrooms, etc.), daytime vertical illuminance at eye level (Ev): One line summary:“Seeing enough during the day does not mean circadian stimulation is sufficient.” 2. L02 Illuminance for Visual Tasks: The Task Surface Must Do Justice to the Task More importantly: Practical note:Lighting only a few \u201cspots\u201d while other areas rely on intuition often results in \u201cgood-looking renderings, but uncomfortable real-world experience.\u201d One line summary:“Task surfaces must be bright enough and uniform enough.” 3. L03 Circadian Light Exposure: The Day Needs a \u201cMain Line\u201d Circadian-related metrics (e.g., EML \/ m-EDI) often seem complicated. From a design perspective, focus on two things: One line summary:“Keep people truly alert during the day, and truly able to sleep at night.” 4. L07 Brightness Balance & Contrast: Avoid Extreme Bright-to-Dark Fluctuations For visual comfort, avoid two extremes: Practical guideline: One line summary:“Moderate contrast creates layers; excessive contrast creates torture.” 5. L08 Light Source Quality: Don\u2019t Let Poor Light Ruin Good Design Light source quality may seem like an \u201cengineering\u201d or \u201cproduct\u201d issue, but designers can gain significant influence by understanding it. Key anchor points: These numbers are based on research and standards, but for designers, knowing them gives you the confidence to say \u201cno\u201d to clients or suppliers when specifications fall short. 3. The Purpose of Tools Is Not to Show Off, but to Make This Logic Actionable Many designers, when facing measurement equipment, often think:“Will this be complicated? Do I have to become an engineer?” In fact, tools that are truly suitable for designers should allow you to: When LRS collaborated with various manufacturers to develop In.Licht Ultra \/ Pro, the goal was to turn these \u201cseemingly complex parameters\u201d into information designers can quickly read and act on onsite, rather than an additional burden. The real point is not how expensive your equipment is, but whether you can clearly explain to your client: 4. What Can LRS Do for Design Teams? In many companies and organizations, the understanding of light across design, product, and marketing teams is often fragmented: When collaborating with lighting brands, real estate groups, and design agencies, LRS typically conducts three types of workshops or internal trainings: 1. Build a \u201cHealthy Light Framework\u201d for Design TeamsUsing L01\u2013L09 and the \u201cThreshold Cheat Sheet,\u201d we help integrate scattered knowledge into a practical, actionable design logic. 2. Redefine \u201cLight Formula\u201d Language for Product & R&D TeamsMove beyond just \u201c3000K \/ 4000K \/ 5000K\u201d to scene-based vocabulary like \u201csuitable for children\u2019s learning, healthcare spaces, or night-shift offices.\u201dThis helps brands clearly explain to the market who the product serves and what problem it solves. 3. Build a Unified External Narrative for Marketing & Leadership TeamsElevate \u201chealthy light\u201d from a technical term to a long-term brand and business pillar.Communicate with clients, partners, and associations using rigorous yet understandable language. If your company or organization is considering:“How can we systematically upgrade our team\u2019s healthy light capability?”LRS is happy to work with you to customize a training and co-creation session that truly translates into everyday design practice, based on your project type and team structure. [Next Edition Preview]In the next article, we will explore project practice and business models: how designers can move from a single delivery to long-term \u201clight environment stewardship\u201d when light can be measured and verified:\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lightingrecipe.com\/zh\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-09T03:52:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-09T03:52:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lightingrecipe.com\/wp-content\/uploads\/2025\/12\/image_Pippit_202512091120.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"2048\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"LRS Admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005:\" \/>\n\t<meta name=\"twitter:data1\" content=\"LRS Admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9810\u4f30\u95b1\u8b80\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\u9418\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/\"},\"author\":{\"name\":\"LRS Admin\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/#\\\/schema\\\/person\\\/d8fc98bd754facede814f69c45e6ab7a\"},\"headline\":\"“Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A “Threshold Cheat Sheet” + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design\",\"datePublished\":\"2025-12-09T03:52:35+00:00\",\"dateModified\":\"2025-12-09T03:52:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/\"},\"wordCount\":1300,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/lightingrecipe.com\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/image_Pippit_202512091120-1024x1024.jpg\",\"inLanguage\":\"zh-TW\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/\",\"url\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/\",\"name\":\"\\\"Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A \\\"Threshold Cheat Sheet\\\" + Nine \\\"Healthy Light Guidelines\\\" to Build the Framework of Healthy Light Design -\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/lightingrecipe.com\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/image_Pippit_202512091120-1024x1024.jpg\",\"datePublished\":\"2025-12-09T03:52:35+00:00\",\"dateModified\":\"2025-12-09T03:52:50+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/#\\\/schema\\\/person\\\/d8fc98bd754facede814f69c45e6ab7a\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#breadcrumb\"},\"inLanguage\":\"zh-TW\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-TW\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#primaryimage\",\"url\":\"https:\\\/\\\/lightingrecipe.com\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/image_Pippit_202512091120-1024x1024.jpg\",\"contentUrl\":\"https:\\\/\\\/lightingrecipe.com\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/image_Pippit_202512091120-1024x1024.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/lightingrecipe.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"“Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A “Threshold Cheat Sheet” + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/#website\",\"url\":\"https:\\\/\\\/lightingrecipe.com\\\/\",\"name\":\"\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/lightingrecipe.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-TW\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/lightingrecipe.com\\\/#\\\/schema\\\/person\\\/d8fc98bd754facede814f69c45e6ab7a\",\"name\":\"LRS Admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-TW\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2c772d43542664cbdbb25a0bb70f3394d59abb206bcb9a700a1b0b0d9e719198?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2c772d43542664cbdbb25a0bb70f3394d59abb206bcb9a700a1b0b0d9e719198?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2c772d43542664cbdbb25a0bb70f3394d59abb206bcb9a700a1b0b0d9e719198?s=96&d=mm&r=g\",\"caption\":\"LRS Admin\"},\"sameAs\":[\"https:\\\/\\\/lightingrecipe.com\"],\"url\":\"https:\\\/\\\/lightingrecipe.com\\\/zh\\\/author\\\/77026pwpadmin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\"Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A \"Threshold Cheat Sheet\" + Nine \"Healthy Light Guidelines\" to Build the Framework of Healthy Light Design -","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"zh_TW","og_type":"article","og_title":"\"Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A \"Threshold Cheat Sheet\" + Nine \"Healthy Light Guidelines\" to Build the Framework of Healthy Light Design -","og_description":"\u3010Part Two\u3011 A \u201cThreshold Cheat Sheet\u201d + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design In many project discussions, I often hear designers express this confusion:“I roughly know that the lighting should be \u2018healthy\u2019 and \u2018human-centered,\u2019 but when it comes to concrete numbers, I feel completely lost.” On one side, there\u2019s a bookshelf full of standards and research papers. On the other, there\u2019s the overwhelming project schedule and client pressure. What designers truly need is a framework that\u2019s easy to reference and apply: In this edition, we attempt to provide that framework for designers using 9 healthy light guidelines + a \u201cthreshold cheat sheet.\u201d 1. Build the Framework Before Talking Style Whether it\u2019s interior design, architecture, or lighting design, we\u2019re used to starting from concepts and styles: But when it comes to health, sleep, attention, or mood, relying on \u201cfeelings\u201d alone is clearly not enough. Take the lighting sections in international mainstream healthy building standards as an example. The lighting-related clauses can generally be summarized into four levels: L01\u2013L03: Is there enough and proper light? L04\u2013L07: See clearly, and comfortably L08\u2013L09: Light source quality and control Cross-cutting considerations: \u201cTimeline\u201d and \u201cUser Differences\u201d In other words:Healthy light design is not about \u201cadding a few more lamps\u201d or \u201cbuying a few smart switches.\u201dIt\u2019s about finding a logical path between Quantity (illuminance), Quality (spectrum), Time (timeline), and People (users). 2. Designer\u2019s \u201cThreshold Cheat Sheet\u201d: No Need to Memorize Every Clause, Just Remember the Key Anchors The numbers below are not absolute values, but serve as anchor points for judging direction, persuading clients, and guiding brand teams during a project. You can put them on a small card for your desk or notebook. 1. L01 Light Exposure: At Least \u201cEnough\u201d For areas with long-term occupancy (offices, classrooms, etc.), daytime vertical illuminance at eye level (Ev): One line summary:“Seeing enough during the day does not mean circadian stimulation is sufficient.” 2. L02 Illuminance for Visual Tasks: The Task Surface Must Do Justice to the Task More importantly: Practical note:Lighting only a few \u201cspots\u201d while other areas rely on intuition often results in \u201cgood-looking renderings, but uncomfortable real-world experience.\u201d One line summary:“Task surfaces must be bright enough and uniform enough.” 3. L03 Circadian Light Exposure: The Day Needs a \u201cMain Line\u201d Circadian-related metrics (e.g., EML \/ m-EDI) often seem complicated. From a design perspective, focus on two things: One line summary:“Keep people truly alert during the day, and truly able to sleep at night.” 4. L07 Brightness Balance & Contrast: Avoid Extreme Bright-to-Dark Fluctuations For visual comfort, avoid two extremes: Practical guideline: One line summary:“Moderate contrast creates layers; excessive contrast creates torture.” 5. L08 Light Source Quality: Don\u2019t Let Poor Light Ruin Good Design Light source quality may seem like an \u201cengineering\u201d or \u201cproduct\u201d issue, but designers can gain significant influence by understanding it. Key anchor points: These numbers are based on research and standards, but for designers, knowing them gives you the confidence to say \u201cno\u201d to clients or suppliers when specifications fall short. 3. The Purpose of Tools Is Not to Show Off, but to Make This Logic Actionable Many designers, when facing measurement equipment, often think:“Will this be complicated? Do I have to become an engineer?” In fact, tools that are truly suitable for designers should allow you to: When LRS collaborated with various manufacturers to develop In.Licht Ultra \/ Pro, the goal was to turn these \u201cseemingly complex parameters\u201d into information designers can quickly read and act on onsite, rather than an additional burden. The real point is not how expensive your equipment is, but whether you can clearly explain to your client: 4. What Can LRS Do for Design Teams? In many companies and organizations, the understanding of light across design, product, and marketing teams is often fragmented: When collaborating with lighting brands, real estate groups, and design agencies, LRS typically conducts three types of workshops or internal trainings: 1. Build a \u201cHealthy Light Framework\u201d for Design TeamsUsing L01\u2013L09 and the \u201cThreshold Cheat Sheet,\u201d we help integrate scattered knowledge into a practical, actionable design logic. 2. Redefine \u201cLight Formula\u201d Language for Product & R&D TeamsMove beyond just \u201c3000K \/ 4000K \/ 5000K\u201d to scene-based vocabulary like \u201csuitable for children\u2019s learning, healthcare spaces, or night-shift offices.\u201dThis helps brands clearly explain to the market who the product serves and what problem it solves. 3. Build a Unified External Narrative for Marketing & Leadership TeamsElevate \u201chealthy light\u201d from a technical term to a long-term brand and business pillar.Communicate with clients, partners, and associations using rigorous yet understandable language. If your company or organization is considering:“How can we systematically upgrade our team\u2019s healthy light capability?”LRS is happy to work with you to customize a training and co-creation session that truly translates into everyday design practice, based on your project type and team structure. [Next Edition Preview]In the next article, we will explore project practice and business models: how designers can move from a single delivery to long-term \u201clight environment stewardship\u201d when light can be measured and verified:","og_url":"https:\/\/lightingrecipe.com\/zh\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/","article_published_time":"2025-12-09T03:52:35+00:00","article_modified_time":"2025-12-09T03:52:50+00:00","og_image":[{"width":2048,"height":2048,"url":"https:\/\/lightingrecipe.com\/wp-content\/uploads\/2025\/12\/image_Pippit_202512091120.jpg","type":"image\/jpeg"}],"author":"LRS Admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005:":"LRS Admin","\u9810\u4f30\u95b1\u8b80\u6642\u9593":"7 \u5206\u9418"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#article","isPartOf":{"@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/"},"author":{"name":"LRS Admin","@id":"https:\/\/lightingrecipe.com\/#\/schema\/person\/d8fc98bd754facede814f69c45e6ab7a"},"headline":"“Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A “Threshold Cheat Sheet” + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design","datePublished":"2025-12-09T03:52:35+00:00","dateModified":"2025-12-09T03:52:50+00:00","mainEntityOfPage":{"@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/"},"wordCount":1300,"commentCount":0,"image":{"@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#primaryimage"},"thumbnailUrl":"https:\/\/lightingrecipe.com\/wp-content\/uploads\/2025\/12\/image_Pippit_202512091120-1024x1024.jpg","inLanguage":"zh-TW","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/","url":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/","name":"\"Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A \"Threshold Cheat Sheet\" + Nine \"Healthy Light Guidelines\" to Build the Framework of Healthy Light Design -","isPartOf":{"@id":"https:\/\/lightingrecipe.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#primaryimage"},"image":{"@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#primaryimage"},"thumbnailUrl":"https:\/\/lightingrecipe.com\/wp-content\/uploads\/2025\/12\/image_Pippit_202512091120-1024x1024.jpg","datePublished":"2025-12-09T03:52:35+00:00","dateModified":"2025-12-09T03:52:50+00:00","author":{"@id":"https:\/\/lightingrecipe.com\/#\/schema\/person\/d8fc98bd754facede814f69c45e6ab7a"},"breadcrumb":{"@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#breadcrumb"},"inLanguage":"zh-TW","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/"]}]},{"@type":"ImageObject","inLanguage":"zh-TW","@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#primaryimage","url":"https:\/\/lightingrecipe.com\/wp-content\/uploads\/2025\/12\/image_Pippit_202512091120-1024x1024.jpg","contentUrl":"https:\/\/lightingrecipe.com\/wp-content\/uploads\/2025\/12\/image_Pippit_202512091120-1024x1024.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/lightingrecipe.com\/designing-the-light-for-a-human-lifetime-the-era-of-healthy-lighting-for-designers-series-part-two-a-threshold-cheat-sheet-nine-healthy-light-guidelines-to-buil\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/lightingrecipe.com\/"},{"@type":"ListItem","position":2,"name":"“Designing the Light for a Human Lifetime: The Era of Healthy Lighting for Designers\u201d Series \u2013 Part Two |\u00a0 A “Threshold Cheat Sheet” + Nine “Healthy Light Guidelines” to Build the Framework of Healthy Light Design"}]},{"@type":"WebSite","@id":"https:\/\/lightingrecipe.com\/#website","url":"https:\/\/lightingrecipe.com\/","name":"","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/lightingrecipe.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-TW"},{"@type":"Person","@id":"https:\/\/lightingrecipe.com\/#\/schema\/person\/d8fc98bd754facede814f69c45e6ab7a","name":"LRS \u7ba1\u7406\u54e1","image":{"@type":"ImageObject","inLanguage":"zh-TW","@id":"https:\/\/secure.gravatar.com\/avatar\/2c772d43542664cbdbb25a0bb70f3394d59abb206bcb9a700a1b0b0d9e719198?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/2c772d43542664cbdbb25a0bb70f3394d59abb206bcb9a700a1b0b0d9e719198?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/2c772d43542664cbdbb25a0bb70f3394d59abb206bcb9a700a1b0b0d9e719198?s=96&d=mm&r=g","caption":"LRS Admin"},"sameAs":["https:\/\/lightingrecipe.com"],"url":"https:\/\/lightingrecipe.com\/zh\/author\/77026pwpadmin\/"}]}},"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/posts\/2373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/comments?post=2373"}],"version-history":[{"count":1,"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/posts\/2373\/revisions"}],"predecessor-version":[{"id":2378,"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/posts\/2373\/revisions\/2378"}],"wp:attachment":[{"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/media?parent=2373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/categories?post=2373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lightingrecipe.com\/zh\/wp-json\/wp\/v2\/tags?post=2373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}