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Browse by Category: Main > Optical & Optics
Class Information
Number: 362/279
Name: Illumination > Light source (or support therefor) and modifier > Adjustable or repositionable modifier > Louvered or grid type modifier movable as a unit
Description: Subject matter wherein the modifier includes at least two spaced adjacent modifying means each having at least two plane or curved surfaces of the type generated by a straight or curved line (the "generatrix"); the means being so arranged relative to each other and to the light source that (a) no two of the surfaces are generated by an extension of the same generatrix, (b) one of the surfaces of one means faces one of the surfaces of the adjacent means, (c) one of the surfaces of each means is exposed to light from the light source, and (d) light from the source is able to pass both surfaces of each means and at least one of the surfaces in a direction parallel or tangent to its generatrix, the means movable relative to the light source but fixed relative to each other.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8511865 LED luminaire light redirection shield Aug. 20, 2013
8496354 Beam control system for an LED luminaire Jul. 30, 2013
8303135 Video conference lighting fixture Nov. 6, 2012
8246210 Lighting device with adjustable light beam, particularly for a flashlight Aug. 21, 2012
8197094 Stage lighting fixture Jun. 12, 2012
8118453 Luminaire and lamellae louver therefor Feb. 21, 2012
8104921 Daylight deflection system with integrated artificial light source Jan. 31, 2012
8042968 Modular light reflectors and assemblies for luminaire Oct. 25, 2011
7862208 Dimming device for a searchlight Jan. 4, 2011
7568818 Lamp distribution modifier and luminaire having the same Aug. 4, 2009
7556402 Direct-indirect luminaire with shutter Jul. 7, 2009
7534027 Planar light source and liquid crystal display using the same May. 19, 2009
7517113 Grid screen for illumination devices Apr. 14, 2009
7463415 System for collecting and displaying images to create a visual effect and methods of use Dec. 9, 2008
7399097 Modular filtering and reflective system for photographic use Jul. 15, 2008
7397984 Light guide screen louver device Jul. 8, 2008
7394593 Transmitted-light base for a microscope, and method for regulating the illumination intensity of a transmitted-light base Jul. 1, 2008
7325950 Headlight antiglare device Feb. 5, 2008
7246918 Large area lighting system Jul. 24, 2007
7232239 Ergonomic ceiling mounted lamp Jun. 19, 2007
7201496 Luminaire and lamellae louver therefor Apr. 10, 2007
7128443 Light-collimating system Oct. 31, 2006
7101067 Dual beam high intensity discharge reflector Sep. 5, 2006
7036960 Light louver post May. 2, 2006
6923553 Handlamp Aug. 2, 2005
6865023 System for collecting and displaying images to create a visual effect and methods of use Mar. 8, 2005
6688755 Laser lighting system Feb. 10, 2004
6604842 Picture light Aug. 12, 2003
6390650 Screenprinted uniformity filter for large area pulse solar simulator May. 21, 2002
6309091 Lamp shade assembly Oct. 30, 2001
6280057 Laser lighting system Aug. 28, 2001
6267478 Pattern-changing structure for a projection light system Jul. 31, 2001
6082873 Connecting accessory for fluorescent lamps Jul. 4, 2000
6076942 Uniformity filter Jun. 20, 2000
6045238 Illumination assembly for an optical viewing device Apr. 4, 2000
5718505 Headlight for vehicle Feb. 17, 1998
5526241 Interior lamp for motor vehicle Jun. 11, 1996
5459557 Image forming apparatus Oct. 17, 1995
5313380 Lighting assembly May. 17, 1994
5077649 Headlight adjusters/shutters Dec. 31, 1991
5016975 Electronic endoscope provided with a sample-hold circuit May. 21, 1991
4949227 Upper and lower beam optical switch for line-of-light headlamps using opaque masks Aug. 14, 1990
4947307 Adjustable recessed louvers for grade mounted light fixture Aug. 7, 1990
4896656 Lens-like radiant energy transmission control means Jan. 30, 1990
4841947 Lens-like radiant energy transmission control means Jun. 27, 1989
4841421 Housing for long-field lamps having interchangeable louver insert Jun. 20, 1989
4817163 Loud-speaker combined with a device for producing lighting effects Mar. 28, 1989
4811179 Display device Mar. 7, 1989
4800473 Venitian blind lamp Jan. 24, 1989
4630181 Fluorescent lighting fixture Dec. 16, 1986

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