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Browse by Category: Main > Optical & Optics
Class Information
Number: 362/325
Name: Illumination > Light modifier > Adjustable or positionable > Angularly > Louvered or grid type
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 so arranged relative to each other 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, and (c) light 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, and wherein the means are pivoted either individually or as a unit for angular adjustment or repositioning relative to each other or to a common support.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8629955 Moire reducing display device having directivity with terminal device, light source device, and optical member Jan. 14, 2014
8496354 Beam control system for an LED luminaire Jul. 30, 2013
8339538 Display device, terminal device, light source device, and optical member having a light-direction restricting element and a transparent/scattering state switching element Dec. 25, 2012
8104921 Daylight deflection system with integrated artificial light source Jan. 31, 2012
7845833 Light dimmer and associated methodology Dec. 7, 2010
7677764 Illuminating apparatus Mar. 16, 2010
7572035 Illumination obscurement device Aug. 11, 2009
7520643 Lighting louver system Apr. 21, 2009
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
7246924 High performance lighting louvers and luminaires Jul. 24, 2007
7201496 Luminaire and lamellae louver therefor Apr. 10, 2007
7198388 Curved flexible light control grids with rigid framework Apr. 3, 2007
7128443 Light-collimating system Oct. 31, 2006
7121690 Constructive occlusion with a transmissive component Oct. 17, 2006
7101067 Dual beam high intensity discharge reflector Sep. 5, 2006
7055966 Illuminator and projector Jun. 6, 2006
6984061 Covert infrared landing light Jan. 10, 2006
6865023 System for collecting and displaying images to create a visual effect and methods of use Mar. 8, 2005
6705747 Circular lighting louver Mar. 16, 2004
6705746 Controlled-luminance lighting device Mar. 16, 2004
6561677 Night light May. 13, 2003
6540380 Illumination system for projector Apr. 1, 2003
6234649 Electric lamp device and lighting apparatus May. 22, 2001
5975720 Color changer Nov. 2, 1999
5733036 Louvered light control Mar. 31, 1998
5664878 Internally illuminated sign Sep. 9, 1997
5658071 Lighting system including adjustable louver Aug. 19, 1997
5526241 Interior lamp for motor vehicle Jun. 11, 1996
5335156 Flexible cantilevered parabolic lighting baffle Aug. 2, 1994
5313380 Lighting assembly May. 17, 1994
5276601 Lamp shade having at least two laterally spaced arrays of light deflectors Jan. 4, 1994
5243402 Optical inspection apparatus Sep. 7, 1993
5077649 Headlight adjusters/shutters Dec. 31, 1991
4947307 Adjustable recessed louvers for grade mounted light fixture Aug. 7, 1990
4839778 Louver system Jun. 13, 1989
4807100 Light director Feb. 21, 1989
4800473 Venitian blind lamp Jan. 24, 1989
4794494 Daytime illumination device for a motor vehicle Dec. 27, 1988
4720954 Screen ceiling assembly Jan. 26, 1988
4639839 Vehicular lighting device having a power driven lamp cover Jan. 27, 1987
4630181 Fluorescent lighting fixture Dec. 16, 1986
4567549 Automatic takeup and overload protection device for shape memory metal actuator Jan. 28, 1986
4556934 Shape memory metal actuator Dec. 3, 1985
4556935 Adjustable shape memory metal actuator Dec. 3, 1985
4513358 Lamp comprising automatically actuated louver system Apr. 23, 1985
4499529 Light reflector Feb. 12, 1985
4392190 Shaded lamp for reading and like purposes Jul. 5, 1983
4316241 Method and apparatus for controlling reflected energy including dual light transmitting means for producing a spot to flood configuration Feb. 16, 1982

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