WebMeasurements of glare and stray light are particularly important for drivers, 1–3 cataract, 4–6 and refractive surgery. 7–14 Glare testing in the elderly may be important in view of the high accident rates in this age group, 15 especially at night. 16 Moreover, glare measurements may predict future decrease of visual acuity. 17 In optical astronomy, stray light from sky glow can limit the ability to detect faint objects. In this sense stray light is light from other sources that is focused to the same place as the faint object. Stray light is a major issue in the design of a coronagraph, used for observing the Sun's corona. See more Stray light is light in an optical system, which was not intended in the design. The light may be from the intended source, but follow paths other than intended, or it may be from a source other than the intended source. This light … See more There are many sources of stray light. For example: • Ghost orders in diffraction gratings. These can be caused by periodic variations in the spacing of grooves in ruled gratings, for instance. • Light scattered towards a telescope from … See more Monochromatic light Optical measuring instruments that work with monochromatic light, such as spectrophotometers, define stray light as light in the system at wavelengths (colors) other than the one intended. The stray light level is one of … See more A number of optical design programs feature the capability of modeling stray light in an optical system, for instance: • See more • Glare (vision) • Lens flare • Spectral power distribution See more
Simulation and assessment of stray light effects in infrared …
WebSpatial stray light is also a problem in MODIS and was studied by Qiu, et al.3 and Meister, et al.4 Du, et al. investigated the spatial stray light effect of a comm ercial CCD camera on the accuracy of the instrument s radiometric calibration and found as large as 3.7 % was introduced by the spatial stray light within the camera. 5 WebIt is imperative that optical system designers understand its consequences on system performance and adapt the design process to control it. This book addresses stray light terminology, radiometry, and the physics of stray light mechanisms, such as surface roughness scatter and ghost reflections. immobilising weapon crossword clue
What Is Stray Light and How Does It Work? Synopsys
Web1 Nov 2014 · The purpose of this study is to investigate the spectral stray light effects on radiation temperature measurements for a near-infrared multi-wavelength pyrometer. … Web5 Jul 2024 · This side effect occurs because iris pigment is released when the hole is created with the laser. The pigment can temporarily clog the drainage system, and cause the eye pressure to increase. ... thereby allowing another hole through which light can pass. There is a risk of stray light reaching the retina and causing symptoms such as glare or ... Web1 Nov 2014 · The effects of the spectral stray light on the temperature measurements using the near-infrared multi-wavelength pyrometer were evaluated using the measurements of spectral stray light correction. The calibration facility shown in Fig. 1 included a pulsed tunable laser source with a 0.41–2.63 μm spectral range. immobility 10