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  • Home
  • Color Perception
    • CHROMA Topics
    • Color in Light
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    • Color Perception is Individual
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    • Synesthesia Guest Editor
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      • Red Light Therapy
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      • LED Glare
      • OLED - Organic LED
    • Lighting Design for Health & Wellness
      • Human Centric Lighting
      • Lighting with Daylighting
      • Lighting for Healthy Buildings & Zero Net Energy
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Lighting

Lighting Design Tips & Codes
Not intended for medical advice, consult your doctor  Disclaimer

 Lighting Design Tips & Codes

Learning Objectives

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  1. What are some lighting design strategies?
  2. Why are codes important? 
  3. What is ZNE?

Lighting Design

Artificial light allows us to see and use both indoor and outdoor spaces in conditions that daylight alone does not allow.  Natural daylight is one of our best lighting tools; however, augmenting with electric light is necessary in many spaces.  Daylight is direct or diffused light from the sun, see more on Lighting with Daylighting page for building design that includes natural daylight as a light source including windows, clerestory windows, skylights, light tubes, and atriums. 
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Layers of Light

Illuminating spaces with layers of light helps us decide where to put the light and why we need it.  Light sources can be hidden or featured.There is overlap between the layers when a light source does double duty. For example; a decorative pendant can provide both ambient light and also introduce elements of human scale to the space. 
  1. Ambient - General Illumination
  2. Feature - Architecture & Art
  3. Decorative - Human Scale
  4. Task - Work Areas

Indirect Lighting Mimics Nature

Natural daylight enters a room through windows and doors and bounces off the ceiling, walls, and floors. Indirect lighting mimics this natural lighting effect and creates an even and soft lighting effect.
Barrel vault featuring indirect lighting for gallery within custom loft for architect Barry Berkus, AIA, lighting by Trish Odenthal.
Barrel vault featuring indirect lighting for gallery within custom loft for architect Barry Berkus, AIA, lighting by Trish Odenthal.

Building Codes

Life safety of building inhabitants is the first and most important reason for building codes. Additionally, energy codes are designed to save energy in order to reduce the need to build new power plants.
The state of California Building Efficiency Standards Title 24 sets standards for energy consumption limits for lighting, heating, and cooling in addition to insulation requirements for windows, walls, and roofing. Commercial buildings and exteriors such as parking lots, over certain sizes, are required to include dimming and daylighting.

ZNE - Zero Net Energy

ZNE is an energy-efficient building where, on a source energy basis, the actual annual consumed energy is less than or equal to the on-site renewable generated energy.  Or another way to say it, "more electricity is produced on site than is used per year."
​

The California Public Utilities Commission (CPUC), as part of implementing the California Long-Term Energy Efficiency Strategic Plan and its goal to have all new residential buildings be Zero Net Energy by 2020, and all new commercial buildings be Zero Net Energy beginning in 2030, is updating the Commercial Buildings ZNE Action Plan. 
https://www.capath2zne.org/ is California's ZNE site to facilitate sharing information, updates, and details about stakeholder input opportunities related to the Plans updates. ​
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The first national and international ZERO Code standard for new commercial, institutional, and mid- to high-rise residential buildings.

Architecture 2030, ​ a non-profit organization established in 2002, is excited to announce the publication of the ZERO Code standard for new building construction, which integrates cost-effective energy efficiency measures with on-site and/or off-site renewable energy resulting in Zero-Net-Carbon (ZNC) buildings.

ZERO Code – Adoption
The ZERO Code standard can be incentivized or required by adopting jurisdictions. To access the ZERO Code website, including API documentation and the simulation interface, and to download the ZERO Code and Technical Support Document for the off-site procurement of renewable energy, visit www.zero-code.org

November 27, 2018, Oregon Building Codes Division adopted an alternate building code for energy efficiency in commercial structures. The Oregon Zero Code Efficiency Standard, approved by the state's Building Structures Board, offers an alternative approach to meeting the existing code’s energy efficiency requirements. [1]

Reflectance

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Learn about reflection and glare from nature on ​https://www.tolighting.com/philosophy.html

Avoid Glare in your artificial and daylighting design

Glare is the effect of brightness or differences in brightness within the visual field sufficiently high to cause annoyance, discomfort or loss of visual performance.
Glare – Disability Glare
If task performance is affected, it is called disability glare
Glare – Discomfort Glare
Visual discomfort caused by excessive brightness is called discomfort glare.
Glare – Direct Glare
Glare resulting from very bright sources of light in the field of view. It usually is associated with bright light from luminaires and windows. A direct glare source may affect occupant’s performance by reducing the apparent contrast of objects in the field of view, especially those near the source of light.
Glare – Indirect Glare
Glare produced from a reflective surface.
Glare – Reflected Glare or Veiling Reflection
Glare resulting from bright reflections from polished, glossy, or illuminated objects and surfaces in the field of view.  Veiling reflections reduce visual contrast and make it difficult to complete seeing tasks such as reading glossy magazines or looking through windows or at computer screens. Often windows or light fixtures will reflect off surfaces obscuring what is beneath, anticipate this visual obstacle by careful placement of lights, windows, and tasks. Remember with glare, 'the angle of incidence equals the angle of reflection' just like billiards.
Visual Comfort Probability (VCP) 
A rating system for evaluating direct discomfort glare. This method is a subjective evaluation of visual comfort, when viewing from a specific location and in a specified direction, expressed as the percent of occupants of a space who will be bothered by direct glare. VCP allows for several factors: luminaire luminances at different angles of view, luminaire size, room size, luminaire mounting height, illuminance, and room surface reflectivity. VCP tables are often provided as part of photometric reports.
Visit Seniors and Low Vision page for more on reflectance.

Learn More

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Daylighting, Healthy Building Lighting
Sleep,  Circadian System,  Human Centric Lighting, Blue Light Dimming, Photosensitivity , Red Night Lights

Footnotes

  1. https://www.ecmweb.com/construction/oregon-adopts-alternative-code-energy-efficiency?NL=ECM-02&Issue=ECM-02_20181129_ECM-02_415&sfvc4enews=42&cl=article_4_b&utm_rid=CPG04000001362484&utm_campaign=23521&utm_medium=email&elq2=20e35e1163e7480c8ace6f4388586c87
  2. ​

Photo Credits

  • https://architecture2030.org/zero-code/

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  • Home
  • Color Perception
    • CHROMA Topics
    • Color in Light
    • Color in Paint - Why they fade?
    • Color Names
    • Color Phenomena
    • Color Perception is Individual
    • Color In Fashion
    • Color Blindness
    • Color Blind Interview
    • Synesthesia
    • Synesthesia Guest Editor
  • Circadian & Light for Health
    • Circadian & THERAPY Topics
    • Circadian Systems
      • Light is Energy
      • Circadian Explained
      • Circadian Ganglion Cells
      • Circadian Melatonin
      • Circadian Animals
      • Circadian Research
    • Light for Health
      • Blue Light Dimming Apps
      • Red Night Lights
      • Vitamin D & Light
      • SAD - Seasonal Affective Disorder
      • Photosensitivity - Light Sensitive Drugs
      • Red Light Therapy
      • Sleep
      • Dreams and Second Sleep
      • NASA - Lighting in Space & Undersea
      • Jet Lag
      • Sunglasses
      • Chakras
      • Crystals, Minerals, & Gemstones
  • Lighting Design
    • LIGHT Topics
    • LED Light Sources
      • LED Lighting Facts Card
      • LED CRI - Color Rendering Index
      • LED TM-30
      • LED Kelvin Color
      • LED LPW
      • LED Flicker
      • LED Glare
      • OLED - Organic LED
    • Lighting Design for Health & Wellness
      • Human Centric Lighting
      • Lighting with Daylighting
      • Lighting for Healthy Buildings & Zero Net Energy
      • Lighting for Healthcare
      • Lighting for Hospitality & LED Retrofits
      • Lighting for Museums
      • Lighting for Seniors & Low Vision
      • Lighting Design Tips & Codes
    • Light Pollution
      • Landscape Lighting
      • Dark Sky & Light Pollution
      • Dark Sky Ordinances
      • Dark Sky - Ecology of Night Lighting
      • Dark Sky - Turtle Safe Lighting
      • Dark Sky & Astronomy
      • Dark Sky Reserves
    • Solar Lighting for Humanity & World Health
  • Lighting Research & Books
    • Lighting Research
    • Lighting Publications
    • Lighting Education
  • ABOUT ChromaTherapyLight
    • About Topics
    • About Trish
    • Contact & Disclaimer
    • Social Media
    • Newsletter Archive
    • Guidelines for Guest Editors
    • Site Map
  • Santa Barbara Mesa Insectary Garden