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.

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.
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.
LED backlighting with edge-lit light-guides achieves the objective of producing bright/uniform light in a thinner form-factor when compared to the direct lighting approach.
On the flip side, direct lighting can create an "uneven" environment if fixtures are not spaced properly.
We'll show them direct lighting systems with lenses and parabolic louvers.
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.
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.
And direct lighting creates an annoying glare at some viewing angles, making reading difficult.