Patents
Sitemap › F21 - Lighting › F21V - Functional features or details of lighting devices or systems thereof; Structural combinations of lighting devices with other articles, not otherwise provided for › F21V 13 - Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups
Patents for F21V 13 - Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups (11,665)
06/1982
06/15/1982US4335421 Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area
03/1982
03/30/1982CA1120756A1 Prism light guide
03/24/1982EP0048185A1 Multi-effect lighting source, especially for use as a projector in photography, cinematography and television, or as a lighting fixture
03/16/1982CA1120016A1 Apparatus for reflecting and controlling radiant energy
03/10/1982EP0046842A1 Device for the uniform illumination of indicating elements
01/1982
01/12/1982US4310875 Universally adjustable lamp fixture
12/1981
12/22/1981US4307439 Lamp
12/08/1981US4305119 Vehicle headlamp
11/1981
11/24/1981CA1113062A1 Lighting fixture
08/1981
08/25/1981US4286312 Portable lighting apparatus comprising a diffusing lens
08/12/1981EP0033572A2 Low backscatter illumination system
07/1981
07/22/1981EP0032273A1 Lighting system with intense sources of small dimensions
07/21/1981US4280170 Luminaire
07/07/1981US4277821 Lamp
06/1981
06/30/1981US4276584 Automotive headlight
06/30/1981US4276583 Novel rectangular headlight for automobile
04/1981
04/21/1981US4263641 Reflector for lighting and/or indicator devices especially for vehicles
04/15/1981EP0026944A1 Light with a concave mirror reflector, particularly rear light, safety light, signal light or headlight
04/15/1981EP0026943A1 Light
04/07/1981US4260220 Prism light guide having surfaces which are in octature
03/1981
03/03/1981US4254456 Luminaire for assembly line
01/1981
01/20/1981US4246631 Vehicle headlamp
01/07/1981EP0021305A1 Universally adjustable light fixture
12/1980
12/23/1980US4241388 High contrast lamp assembly
12/09/1980US4238817 Automobile headlight
11/1980
11/25/1980US4236193 Lighting equipment
11/18/1980CA1089828A1 Lighting fixture, such as a tail, warning or signal light, especially
11/11/1980US4233648 Adjustable direct and bounce photoflash unit
11/04/1980CA1088903A1 Lighting fixture
10/1980
10/29/1980EP0017825A1 Closure for releasably holding a lourer in a lamp housing
07/1980
07/15/1980US4213171 Lighting fixture with side escape window
02/1980
02/12/1980CA1071602A1 Portable electric lamp
01/1980
01/29/1980US4186433 Luminaire
12/1979
12/18/1979CA1068244A1 Illuminator with reflector filter
09/1979
09/18/1979CA1062676A1 Traffic light lens
08/1979
08/07/1979US4164012 Luminaire apparatus for reflecting radiant energy and methods of controlling characteristics of reflected radiant energy
07/1979
07/31/1979CA1059483A1 Luminaire
07/31/1979CA1059479A1 Motor vehicle light assembly utilizing total internal reflection
06/1979
06/26/1979US4159511 Shadowless lighting appliance for surgical operating theatres and the like
06/12/1979US4158222 Limited visibility signal device
03/1979
03/13/1979US4144557 EL flashlight
03/06/1979US4143412 Lighting fixture, for a tail, warning or signal light
10/1978
10/24/1978US4122511 Lamp-shade for tubular lamps
10/17/1978US4121279 Lamp module
10/03/1978US4118763 Variable transmission prismatic refractors
10/03/1978US4118761 Light condensing illuminator
08/1978
08/22/1978US4109304 Device for coherent lighting of objects
08/08/1978US4106078 Light source system
07/1978
07/18/1978US4101424 Water jacket for ultraviolet lamp
06/1978
06/20/1978US4095881 Efficient illumination system
05/1978
05/09/1978US4088883 Luminaire for controlling locally unidirectional light
08/1977
08/02/1977US4039816 Arrangement for transmitting light energy
07/1977
07/26/1977US4038542 Luminaire for controlling locally unidirectional light
05/1977
05/31/1977US4026473 Headlamp cleaning assembly
04/1977
04/12/1977US4017729 Decorative lamp
03/1977
03/15/1977US4012630 Lighting fitting
02/1977
02/01/1977US4006355 Luminaire
08/1976
08/31/1976US3978332 Lighting apparatus with batwing light distribution
08/31/1976US3978331 Area lighting luminaire
08/03/1976US3973115 Vehicle lamp unit
07/1976
07/20/1976US3970836 Motor vehicle headlamps
07/13/1976US3969621 Motor vehicle light assembly utilizing total internal reflection
04/1976
04/06/1976US3949214 Vehicle lamp assembly
02/1976
02/10/1976US3937948 Light fixture
02/03/1976US3936022 Lantern and support structure therefor
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