Aircraft Cabin Illumination
|Publication Date:||1 November 2018|
This document covers the general recommendations for cabin lighting in order to provide satisfactory illumination for, but not limited to, commercial transport aircraft:
Boarding and deplaning
Movement about the cabin
Use of lavatories
Use of work areas
Using stowage compartments, coat rooms, and closets
Using interior stairways and elevators (lifts)
Use of crew rest areas
Design Goals - Visual
The designer should strive to provide a comfortable visual environment by proper consideration of:
Quantity of light: The amount of illumination required at each area or location to perform the pertinent visual task.
Quality of lighting: The brightness distribution, including contrasts in the field of view. This includes the surrounding area, such as seat backs, carpeting, bulkheads, overhead, etc., as well as brightness of light sources and fixtures. The values will be influenced by the color, texture, and finish of the materials. Visual comfort is very much dependent upon the quality of the lighting.
Brightness distribution is affected by glare (excessive brightness in the field of view), both direct and reflected, the source of which can be the light sources in the cabin, or light sources exterior to the cabin, such as the sun. The reflected glare may come from shiny, specular surfaces inside the cabin, or airplane parts, such as the wing on the exterior.
By choice of colors and brightness, claustrophobic effects may be reduced.
Design Goals - Electrical and Mechanical
The designer should strive to accomplish the above with:
Adequate hardware design with consideration given to:
Reliability of equipment and lamps
Ease of maintenance
Moisture proof, as required
Illumination Design Errors
Improper quantity of light - too much as well as too little
Inadequate quality of lighting
Exposed light sources - direct glare
Improper consideration of secondary surfaces that absorb or reflect light - brightness distribution, colors, reflected glare, etc.
Difficulty of maintaining lighting systems
Ingredients for Good Lighting
Sufficient illumination for task
Adequate brightness control with respect to:
Contrast between task and surround
Color of furnishings and light