| Patents for G05D 25 - Control of light, e.g. intensity, colour, phase (1,183) |
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| 12/09/1992 | EP0517650A1 Automatic room lighting control installation |
| 11/24/1992 | CA1310721C Light filter with automatic regulation of optical transmission |
| 10/22/1992 | DE4212575A1 Optimised performance of machine using fuzzy logic controller that has learning process - creating knowledge base used with fuzzy logic rules for setting control to optimise output quality |
| 08/18/1992 | US5140600 Method of controlling the total energy amount of a plurality of laser pulses |
| 01/22/1992 | EP0467137A2 Measurement and control of laser energy |
| 11/13/1991 | CN2088357U Sound control flashing wearing decorative article |
| 11/07/1991 | DE4118208A1 Fast viewed displays control under variable lighting - uses light sensors for intensity, direction and spectrum and has liquid-crystal viewing panels |
| 09/17/1991 | US5049730 Automatic shutter for low light sensing and amplifying device |
| 03/13/1991 | CN2073112U Natural light displaying desk lamp |
| 09/18/1990 | US4958354 Apparatus for stabilizing the intensity of light |
| 08/07/1990 | US4947348 Densitometer method and system for identifying and analyzing printed targets |
| 06/26/1990 | US4937591 Apparatus for correcting quantity of light from optical printer |
| 06/19/1990 | US4934810 Method and apparatus for controlling the quantity of emitted light in an optical measuring head |
| 05/08/1990 | US4923300 Defraction photoelectric position measuring system |
| 04/24/1990 | US4920257 Light filter with automatic regulationof optical transmission |
| 03/27/1990 | CA1267071A1 Automatically adjustable slatted blind |
| 10/04/1989 | EP0335056A1 Light filter with automatic optical transmission control |
| 07/05/1989 | EP0322676A2 Process and device to regulate the emission intensity of light in an optical measuring probe |
| 05/02/1989 | US4827116 Square wave modulation circuit for laser diode |
| 03/08/1989 | EP0306217A2 Concentrated toner solution and pressurized toner dispensing mechanism |
| 01/26/1989 | WO1989000779A1 Apparatus for controlling laser wavelength |
| 01/25/1989 | CN2031580U Light out direction changing and adjusting device pointed by laser |
| 11/02/1988 | CN87216518U Power governor for cw laser |
| 09/28/1988 | EP0283899A2 Densitometer method and system for identifying and analyzing printed targets |
| 08/31/1988 | EP0279944A2 Photoelectrical position measurement device |
| 08/02/1988 | US4761661 Emergency resetting circuit for a semiconductor laser of a laser beam printer |
| 07/19/1988 | US4758068 Controlling radiation beam diameters |
| 06/16/1988 | DE3634508C1 Optical filter with automatic control of the optical transmission |
| 05/26/1988 | DE3640241A1 Process and apparatus for protection from the sun |
| 04/20/1988 | CN87215412U Digital lighting adjustment cabinet |
| 03/01/1988 | US4727918 Blind adjuster |
| 01/12/1988 | US4719340 Method and apparatus for the observation of luminous phenomena |
| 12/22/1987 | US4713964 For measuring the soot content of gases discharged by diesel engines |
| 11/25/1987 | EP0118483B1 Method and apparatus for the observation of luminous phenomena |
| 11/25/1987 | CN87203698U Automatic light intensity regulator with acousto-optic double control |
| 11/04/1987 | CN87204032U Multifunction automatic dimmer |
| 09/15/1987 | US4694150 Method and apparatus for acoustic supervision of adjustment operations at optical devices |
| 09/09/1987 | EP0235910A1 Controlling radiation beam diameters |
| 08/06/1987 | DE3702449A1 Device for regulating the UV radiation impinging on an object |
| 04/14/1987 | CA1220554A1 Method and apparatus for acoustic supervision of adjustment operations at optical devices |
| 01/28/1987 | EP0209704A2 Device for the optical measurement of the turbidity of gases |
| 01/21/1987 | EP0208721A1 Blind adjuster |
| 11/11/1986 | US4622470 Shutter control system |
| 07/31/1986 | WO1986004382A1 Blind adjuster |
| 07/16/1986 | CN86100215A Automatically adjustable slatted blind |
| 07/02/1986 | CA1207060A Apparatus for synchronizing the slats of motor driven window blinds |
| 06/10/1986 | US4594539 For varying the size of an opening through which a light beam passes |
| 04/23/1986 | EP0178757A2 Solar array regulator |
| 04/01/1986 | US4580044 Laser apparatus with control circuit for stabilizing laser output |
| 12/27/1985 | EP0165325A1 Method and appliance for the acoustic control of the adjustment of optical devices |
| 05/14/1985 | US4517632 Operating theatre lamp |
| 03/05/1985 | US4502758 For incident light |
| 01/08/1985 | US4492908 Apparatus for synchronizing the slats of motor driven window blinds |
| 04/17/1984 | US4443696 Optical beam intensity control system |
| 03/15/1984 | WO1984001037A1 Method and apparatus for the observation of luminous phenomena |
| 12/21/1983 | EP0096341A2 Laser printer optical system |
| 11/29/1983 | US4417797 Variable force electromagnetic shutter |
| 08/02/1983 | US4396831 Shutter control system |
| 11/09/1982 | US4358166 Positioning devices |
| 08/03/1982 | US4342906 Pulse width modulated feedback arrangement for illumination control |
| 07/27/1982 | CA1128604A1 Energy conserving automatic light output system |
| 09/09/1980 | US4221960 Method for stabilizing a modulated light ray |
| 04/15/1980 | CA1075760A1 On-off lamp regulator for an electro-optical sensor |
| 02/26/1980 | US4190795 Constant intensity light source |
| 02/05/1980 | CA1071294A1 Automatic energy control lighting system with automatically variable dc source |
| 12/25/1979 | CA1068528A Additive color printing method and apparatus |
| 11/13/1979 | CA1066356A1 Wide range power control for electric discharge lamp and press using the same |
| 07/31/1979 | US4163150 Process and apparatus for automatically realizing Kohler's principle of illumination |
| 06/12/1979 | US4158132 Lighting-control system with cue-level confirmation |
| 11/07/1978 | US4124294 Light emission regulation device |
| 05/09/1978 | US4088394 Electro-optical light control element |
| 03/14/1978 | US4079391 Control system for controlling the diaphragm in a photographic camera |
| 01/10/1978 | US4068222 Circuit arrangement for automatic level control for optical sensors with pulsed radiation, for example for surveillance equipment |
| 09/20/1977 | US4048812 Solar-energy conserving |
| 07/05/1977 | US4033263 Wide range power control for electric discharge lamp and press using the same |
| 06/28/1977 | US4032817 Wide range power control for electric discharge lamp and press using the same |
| 12/07/1976 | US3996494 Light intensity monitoring and adjusting apparatus for xenon lamp type light fastness tester |
| 11/02/1976 | US3989980 Variable intensity warning light |
| 09/07/1976 | US3979290 Apparatus and process for controlling and regulating the freedom of suspended matter |
| 07/06/1976 | US3967904 Precision radiation source regulation circuit |
| 06/08/1976 | US3962600 Ambient light responsive illumination brightness control circuit |
| 06/01/1976 | US3961180 Luminaire duration control |
| 04/20/1976 | US3952192 Thermal switch device |