Advanced Lighting Guidelines Glossary
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ALL A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9
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Definition
Occupancy sensor A device that switches lights ON and OFF or dims and brightens them based on the presence or absence of… More »
Off-axis vision This occurs when the object to be seen appears off the line of sight, i.e., away from the fixation point.… More »
On-axis vision This occurs when the object to be seen occurs on the line of sight so the retinal image of the… More »
Open loop Photocontrol system that measures only daylight coming into the space, not actual light levels in the space. Original Chapter Source:… More »
Optical radiation Electro-magnetic radiation between the wavelength limits of 1 nm to 1 mm. Ultra-violet, visible and infrared radiation all fall within… More »
Overhead glare Glare caused by a light source located directly above the viewer. Original Chapter Source: Design Considerations Provided By: Leslie North More »
Override A switch or other method that can be used by occupants to ensure continuation of lighting when required outside of… More »
Owner Project Requirements Document produced during pre-design (programming) project phase, and refined over the course of the project, that clearly articulates owner requirements… More »
ALL A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

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