Encyclopedia

Direct lighting

Also found in: Dictionary.

Direct lighting

Lighting provided from a source without reflection from other surfaces. In daylighting, this means that the light has traveled on a straight path from the sky (or the sun) to the point of interest. In electrical lighting, it usually describes an installation of ceiling-mounted or suspended luminaires with mostly downward light-distribution characteristics.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

direct lighting

Lighting in which luminaires distribute 90% to 100% of the emitted light in the direction of the surface to be illuminated, usually in a downward direction.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
Mentioned in
References in periodicals archive
Turning down the direct lighting will enable the background--the FR-4 substrate--to become very dark so that the software can analyze the white ring registered by the vision system and find the center.
Fiducials in focus: good board and stencil alignment makes printing a snap
Table lamps and candles add atmosphere whereas direct lighting can be used to carry out specific tasks, such as reading, working or cooking.
Bright ideas
Direct lighting luminaires are typically recessed into the ceiling and aim 90 to 100 percent of their light downward from the ceiling onto the worksurface.
On the flip side, direct lighting can create an "uneven" environment if fixtures are not spaced properly.
The ups and downs of lighting: deciding between direct and indirect lighting
Charlie Egerton's Win The Toss looked likely to make a winning start over hurdles at Market Rasen until running wide turning for home, and he is given another chance in the Consumer Direct Lighting and GE Lighting Claiming Hurdle (2.35).
Lambourn: Townley Hall to repeat the dose; View from the training centres
Direct lighting uses overhead luminaires that provide downward lighting.
Ceilings appear dark and work surfaces, partitions, and floor appear brightly lit under direct lighting systems.
In the right light
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.