| 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) |
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| 06/04/1991 | US5021930 Automotive headlamp having reduced chromatic aberration |
| 06/04/1991 | US5021929 Flashlight having secondary beam |
| 05/29/1991 | CN1012699B Light signal device |
| 05/21/1991 | USRE33593 Luminaire for indirect lighting |
| 05/21/1991 | CA2026607A1 Reflector and lighting fixture comprising same |
| 05/14/1991 | US5016152 Focused light source and method |
| 05/14/1991 | US5016150 Means and method for increasing output, efficiency, and flexibility of use of an arc lamp |
| 05/08/1991 | EP0426433A2 Light fixture for externally illuminated sign |
| 05/07/1991 | US5014173 Low beam or fog headlamp for motor vehicles |
| 05/07/1991 | US5014171 Color changeable flashlight |
| 05/07/1991 | US5014166 Light unit |
| 04/17/1991 | EP0422084A1 Light, in particular a light for motor vehicles. |
| 04/03/1991 | EP0419730A1 Vehicle front lamp |
| 04/03/1991 | CN1050435A Focused light source and method |
| 03/27/1991 | EP0418535A2 Focused light source and method |
| 03/22/1991 | CA2022936A1 Focused light source and method |
| 03/19/1991 | US5001612 Flashlight attachment |
| 03/14/1991 | DE3929920A1 Electrical lighting unit - has reflective inner surfaces combining reflector element to provide effective output |
| 03/05/1991 | CA2017244A1 Luminaire with changeable accent lighting |
| 02/19/1991 | US4994947 Reflector and lighting fixture comprising same |
| 02/19/1991 | US4994945 Lamp system for operating theatres and the like |
| 02/05/1991 | US4991070 Sleeve for a light element |
| 02/05/1991 | US4991063 Photographic flash apparatus |
| 01/24/1991 | DE3922661A1 Generation of moving coloured patterns - by passing beam of light through glass prism and then onto revolving mirrors |
| 01/22/1991 | US4987524 Lamp shade with improved optical efficiency |
| 01/22/1991 | US4987523 Adjustable beam focus flashlight |
| 01/15/1991 | US4985816 Ellipsoidal light reflector |
| 01/10/1991 | DE3922830A1 Light fitting esp. for motor vehicle - uses light source for white light and transparent tinted cover panel with close fitting optical elements and light filter(s) |
| 01/08/1991 | US4984144 Optical window |
| 01/08/1991 | US4984141 Warning and lighting flash light |
| 01/08/1991 | US4984140 Hand held flashlight with selective beam and enhanced apparent brightness |
| 01/08/1991 | CA1278784C Dipped headlamp for motor vehicles |
| 12/27/1990 | WO1990015954A1 Embedded light fitting for runways |
| 12/19/1990 | EP0403369A1 Lighting device using cylindrical light source |
| 12/19/1990 | EP0402845A2 Spotlight with infinitely variable light intensity |
| 12/12/1990 | EP0299091A4 Light-signalling device |
| 11/20/1990 | US4972307 Structure of headlamps for vehicles |
| 11/20/1990 | US4972302 Vehicle lamp having inner lens and reflector |
| 11/07/1990 | EP0396219A2 Improved lamp system for operating theatres and the like |
| 11/06/1990 | US4969074 Tier light including deflecting and refracting prisms |
| 10/30/1990 | US4967319 Headlight apparatus for automotive vehicle |
| 10/24/1990 | EP0354961A4 Integrally-pressed collimator |
| 10/09/1990 | US4962450 Light signalling device |
| 10/04/1990 | DE3909594A1 Large-louvre luminous element |
| 10/03/1990 | EP0390208A2 Projector-type head lamp for motor vehicles |
| 09/26/1990 | EP0389280A1 Illuminating apparatus |
| 09/12/1990 | EP0386910A1 Multiple cavity light fixture |
| 09/07/1990 | WO1990010174A1 Light, in particular a light for motor vehicles |
| 09/04/1990 | US4954935 Lighting system for illuminating billboards and the like |
| 08/30/1990 | DE3905779A1 Light, in particular rear light of a motor vehicle |
| 08/28/1990 | US4953063 Vehicular headlamp |
| 08/24/1990 | CA2010318A1 Multiple cavity light fixture |
| 08/21/1990 | US4951183 Focusable flashlight |
| 08/07/1990 | US4947303 Glare control lamp and reflector assembly and method for glare control |
| 08/02/1990 | DE3902008A1 Elongate luminaire screen, in particular for luminaires having fluorescent lamps |
| 07/31/1990 | US4945455 Automotive projector-type headlamp |
| 07/31/1990 | US4945453 Vehicular headlamp |
| 07/31/1990 | CA1272171A1 Faceted reflector for headlamps |
| 07/24/1990 | US4943894 Projector-type head lamp for vehicles |
| 07/12/1990 | DE3843254A1 Dental multi-purpose luminaire |
| 07/12/1990 | DE3843253A1 Dental illumination unit |
| 07/11/1990 | EP0377309A2 Back-lit display |
| 07/11/1990 | EP0377079A1 Lighting fixture with a louver and tubular fluorescent lamp |
| 07/03/1990 | US4939629 Compact luminaire including a double-ended lamp |
| 07/03/1990 | CA2004047A1 Back-lit display |
| 06/27/1990 | EP0374846A2 Arc discharge headlamp system |
| 06/26/1990 | US4937714 Lighting system with halogen bulb |
| 06/21/1990 | DE3942151A1 Vorrichtung fuer eine fahrzeuglampe Device for a vehicle lamp |
| 06/21/1990 | CA2005585A1 Arc discharge headlamp system |
| 06/19/1990 | US4935665 Light emitting diode lamp |
| 06/12/1990 | US4933820 Lighting system |
| 06/06/1990 | EP0371511A2 Automotive projector-type headlamp |
| 06/06/1990 | EP0371510A2 Automotive headlamp |
| 05/29/1990 | CA1269649A1 Light box having a fresnel lens |
| 05/23/1990 | EP0369338A2 Fixture for indirect lighting |
| 05/22/1990 | US4928214 Vehicle front lamp |
| 05/22/1990 | US4928213 Projector-type head lamp for vehicles |
| 05/17/1990 | WO1990005268A1 A portable illumination device |
| 05/15/1990 | CA1269082A1 Flashlight |
| 05/14/1990 | EP0357629A4 Reflective film. |
| 05/08/1990 | CA2002084A1 Portable illumination device |
| 05/01/1990 | US4922398 Automotive lamp assembly |
| 05/01/1990 | US4922389 Headlight device for vehicle |
| 04/25/1990 | EP0365193A2 Motor vehicle headlamp |
| 04/24/1990 | US4920459 Arc discharge headlamp system |
| 04/19/1990 | WO1990004130A1 Headlamp or signal lamp, in particular for motor vehicles |
| 04/17/1990 | US4918580 Vehicle headlamp |
| 04/12/1990 | DE3834630A1 Luminaire for indicating the operation and for simultaneously illuminating an operating panel of a domestic appliance |
| 04/12/1990 | DE3834023A1 Scheinwerfer oder signalleuchte, insbesondere fuer kraftfahrzeuge Headlights or signal light, especially for motor vehicles |
| 04/10/1990 | US4916585 Headlight device for vehicle |
| 04/04/1990 | EP0361352A2 Projector |
| 04/03/1990 | US4914747 Vehicular headlamp |
| 04/03/1990 | US4914557 Luminaire having a light absorbing collar |
| 04/03/1990 | US4914342 Narrow spot reflector lamp with diffusing reflector |
| 03/21/1990 | EP0359069A2 Method of manufacturing a louver for a light fitting |
| 03/14/1990 | EP0357629A1 Reflective film. |
| 03/14/1990 | CN1007174B Lighting device with simultaneous adjustable parameters |
| 03/06/1990 | US4907143 Reflector system for fluorescent troffer |
| 02/28/1990 | EP0355815A2 Headlamp unit for motor vehicles |
| 02/22/1990 | DE3827834A1 Fresnel lens |