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 ?
Wavelength reproducibility, variable spectral bandwidth, low stray light and easy sample interface to name but a few.
All Zebraoptical EPD tools are immune to stray light and provide robust metrology.
Advanced features include angle reduction technology to reduce stray light, small form factor for space challenged environments, and Ethernet capability for enhanced control and monitoring.
Its visibility can be greatly reduced by background light such as light pollution or stray light from the moon.
It was a moonless night, and the darkness was almost complete, except for some stray light trickling over the top of the hill and illuminating the treetops.
Many birds and animals are affected by stray light intruding into their night world, confusing their natural patterns of activity and affecting their breeding cycles causing premature breeding.
The low stray light and high diffraction efficiency of Shimadzu Corporation diffraction gratings finds a wide range of applications including analytical instruments used for research in the life sciences, chemistry, and environment, synchrotron radiation, as well as optical communications.
They think that the darkness must be absolute to work, with no stray light at any time.
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.
Ms Wood added: "Future studies should further explore the impact of uncorrected refractive error, cataracts and other forms of visual impairment on driving performance and safety as well as determine the value of some relatively new ways to measure visual abilities, such as stray light testing and contrast sensitivity.
Last but not least, an anti-reflective coating on the Glass-BGA is specially designed for night vision, featuring minimal light reflectivity in the range 400-1000nm, to minimize stray light for visible and for near-infrared light.
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.