stray light


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stray light

Etymology: OFr, estraier, to wander; AS, leoht, illumination
radiant energy that reaches a photodetector and that consists of wavelengths other than those defined by the filter or monochromator.

stray light

(strā līt)
Radiant energy that reaches the detector of a spectrophotometer and consists of wavelengths other than those selected.
References in periodicals archive ?
Thanks to the low level of stray light allowed by the lens design, high-contrast images are also possible with increasing high dynamic ranges of the sensors (HDR).
It reduces stray light from the computer screen disturbing light-sensitive experiments.
The light reflected from these surfaces will be seen and measured as stray light by the wall-mounted photosensor as the goniophotometer mirror rotates about the horizontal axis of its support arm.
David Hartt's Stray Light (2011) is a contemplative, immersive, installation-based exploration of the colourful interior of the headquarters of the Johnson Publishing Company, Chicago-based publisher of the iconic magazines Ebony and Jet.
Currently, instrument developers apply black paint to baffles and other components to help prevent stray light from ricocheting off surfaces.
Despite its tiny footprint - less than two inches square (40 mm * 42 mm) and one inch (24 mm) high - STS provides performance comparable to larger systems: full spectral analysis with low stray light, high signal to noise (>1500:1) and typical optical resolution of - 1.
Initially astronomers became worried about the effects of stray light and glare spoiling their view of the night sky, but as they began to campaign for lighting to be directed where it is needed and not splayed all over the place, many other problem areas became obvious.
Led by mayor William Graham, Scottsburg officials evaluated several replacement options and selected streetlights from Stray Light Optical Technologies with LEPs from Luxim.
The patent pending design makes the most of the optical efficiency of the parabolic reflector by putting the LED within the reflector's focal spot which means that all stray light is redirected and refocused back into the reflector to amplify intensity resulting in the need for fewer LEDs.
The AQ6370C achieves a 76-dB stray light suppression ratio and is guaranteed by Yokogawa to achieve this level of performance, an industry first.
001 and accuracy of [+ or -2%, the result of efficient bubble rejection design, low stray light, and high instrument stability.
According the International Dark-Sky Association, a nonprofit dedicated to protecting the nighttime environment, the adverse effects of artificial light, which include sky glow, glare (a blinding effect caused by stray light that reduces the visibility of a target), light trespass (unwanted light that shines onto your property), light clutter, decreased visibility at night and energy waste, can cause light pollution.