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Browse by Category: Main > Optical & Optics
Class Information
Number: 362/293
Name: Illumination > Light source (or support therefor) and modifier > Including selected wavelength modifier (e.g., filter)
Description: Subject matter wherein the modifier has different effects on radiation of different wavelengths, as for example, absorbing some and transmitting others or transmitting some and reflecting others.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Patent Number Title Of Patent Date Issued
4400764 Low backscatter illumination system Aug. 23, 1983
4397556 Material-testing method and apparatus Aug. 9, 1983
4392187 Computer controlled lighting system having automatically variable position, color, intensity and beam divergence Jul. 5, 1983
4388678 Reading and viewing lamp Jun. 14, 1983
4386292 Projection lamp comprising single ended arc discharge lamp and an interference filter May. 31, 1983
4385344 Visible light apparatus for curing photo-curable compositions May. 24, 1983
4383290 Signal lamp May. 10, 1983
4380791 Electrically controlled additive lamp housing for optical printing Apr. 19, 1983
4376966 Strip lights and method of making same Mar. 15, 1983
4367514 Recessed lighting system Jan. 4, 1983
4366407 Incandescent lamp with selective color filter Dec. 28, 1982
4361863 Illuminating device having a curved optical conductor Nov. 30, 1982
4355349 Lighting unit Oct. 19, 1982
4335642 Stroboscopic tuning Jun. 22, 1982
4333130 Slit illuminating device Jun. 1, 1982
4333127 Electronic flashgun Jun. 1, 1982
4329737 Light-emitting diode arrangement May. 11, 1982
4321659 Narrow-band, air-cooled light fixture Mar. 23, 1982
4318158 Bulbholder and filter assembly Mar. 2, 1982
4298920 Automatic gel changer for a spotlight Nov. 3, 1981
4292664 Dental plaque disclosing light and method Sep. 29, 1981
4291365 Signal lanterns for optional colored light emittance Sep. 22, 1981
4290094 Underwater or weatherproof light Sep. 15, 1981
4287554 Radiation apparatus Sep. 1, 1981
4271408 Colored-light emitting display Jun. 2, 1981
4263641 Reflector for lighting and/or indicator devices especially for vehicles Apr. 21, 1981
4241388 High contrast lamp assembly Dec. 23, 1980
4240133 Quasimonochromatic light source Dec. 16, 1980
4237523 Removable fog light filters Dec. 2, 1980
4225908 Lighting fixture and glass enclosure having high angle anti-reflection film Sep. 30, 1980
4206494 High throughput illuminator Jun. 3, 1980
4206501 Apparatus and methods for back illuminating a display surface Jun. 3, 1980
4200823 Strobe lamp warning apparatus Apr. 29, 1980
4183075 Illumination system for photographic enlargers Jan. 8, 1980
4180847 Lighting display insensitive to extraneous light Dec. 25, 1979
4161014 Luminaire having a configured interference mirror and reflector Jul. 10, 1979
4125889 Transportation arrangement with spotlight projectors for illuminating trunnions of a molten iron ladle Nov. 14, 1978
4112482 Night light belt Sep. 5, 1978
4109301 Adaptor for photographic flash device Aug. 22, 1978
4101957 Zoom operating light Jul. 18, 1978
4096552 Electric jewels Jun. 20, 1978
4095881 Efficient illumination system Jun. 20, 1978
4048490 Apparatus for delivering relatively cold UV to a substrate Sep. 13, 1977
4047020 Disguised emergency light Sep. 6, 1977
4042818 Lamp assembly Aug. 16, 1977
4006377 Filter attachment for parabolic reflector lamps Feb. 1, 1977
3984673 External lighting system for hypobaric and hyperbaric chambers Oct. 5, 1976
3971929 Safelight filter Jul. 27, 1976
3944320 Cold-light mirror Mar. 16, 1976

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