Spill light


Also found in: Dictionary, Thesaurus, Medical.
Related to Spill light: spill out

Spill light

Any light that spills over from the main pattern of the beam established for that light.

spill, spill light

Light rays, from spotlights and other focused light sources, that are not useful, e.g., producing lighting where it is not wanted on a stage.
Mentioned in ?
References in periodicals archive ?
This can be achieved with axially symmetrical light distributions with closely spaced illuminance distribution perpendicular to the wall to effectively illuminate high walls and minimize spill light in the room (Figs.
In fact, with the new optical efficiency the light distributed has minimal spill light.
He points out that most spill light is not as overpowering as some may think: "It's not all slam-dunk onto the water or deck.
Their wasted spill light shines into our yards, windows, and telescopes.
The crowded stellar images no longer spill light over each other, enabling Robert Jedrzejewski (Space Telescope Science Institute) and his colleagues to measure star brightnesses and colors much more accurately than before.
Incorporating this unmatched modular optical technology, the LED luminaires' unique application-specific design allows lumen and energy output to be customized to fulfill the exact needs of the outdoor space -- eliminating wasted energy or obtrusive spill light into neighboring areas.
The company has pioneered systems using metal halide and LED technologies that improve energy efficiency and provide affordable ways to control spill light and glare.
Similarly, 100-W LED PAR luminaires (Altman)--fixed onto existing shelf-like platforms on the trunks' lower halves--were used to provide spill light for the "leaves" (Figure 1).
The improperly shaded path-, building exterior- and sportlights inadvertently project or spill light into these residential areas which is a source of citizen complaints for the Parks department.