Examples include low emissivity panes of glass for houses and cars, anti-reflective coatings on glasses, reflective baffles on car headlights, and for high precision optical filters and mirrors.
42.
If the optical filter passed only that frequency band, then there would be a net transfer of photons, and their energy, from the second system to the first.
43.
A special Institute Advisory Committee recommended that the WFPC2 be used to image a " typical " patch of sky at a high galactic latitude, using several optical filters.
44.
"' Liquid crystal tunable filters "'( LCTFs ) are optical filters that use electronically controlled liquid crystal ( LC ) elements to transmit a selectable wavelength of light and exclude others.
45.
Optical filters are devices that selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the bulk or have interference coatings.
46.
Optical filters then separate excitation light from emitted fluorescence to be detected by eye or with a ( CCD ) camera or other light detector ( e . g ., photomultiplier tubes, spectrographs ).
47.
Among the companies added to the Corning stable in the last 18 months were Oak Industries in Waltham and its Bedford-based Lasertron subsidiary, optical filter maker NetOptix of Natick, and NZ Applied Technologies of Woburn.
48.
To allow scientists to view specific parts of the electromagnetic spectrum the WFPC2 featured a rotating wheel which moves different optical filters into the lightpath ( between the WFPC2's aperture and the CCD detectors ).
49.
Although its molar absorptivity ( extinction coefficient ) is relatively low, PI exhibits a sufficiently large Stokes shift to allow simultaneous detection of nuclear DNA and fluorescein-labeled antibodies, provided the proper optical filters are used.
50.
How about having two theoretical prefect black bodies, first for general photon radiation, second one for the many heat wavelenghts and then an optical filter to allow only required wavelength to pass, reflecting the rest back?
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