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 9 - Light filters; Selection of luminescent materials for light screens
Patents for F21V 9 - Light filters; Selection of luminescent materials for light screens (12,097)
06/1991
06/11/1991US5022740 Instrument gauge light projection device
06/05/1991EP0285618B1 Method for animating lighting structures, and light instrument
06/04/1991US5021931 Lenticular luminescent screen
05/1991
05/21/1991US5018054 Exposure device with filter
05/21/1991US5016985 Infrared filter using cholesteric liquids
05/21/1991US5016975 Electronic endoscope provided with a sample-hold circuit
05/15/1991EP0290473A4 Use of lanthanide chelate fluorophores based on dihydropyridine condensation products
05/14/1991US5016152 Focused light source and method
05/14/1991US5016143 Illuminating system
05/08/1991DE3936374A1 Automobile headlamp with improved characteristics - incorporates IR filter used to provide heating for use of headlamp at low temps.
05/07/1991US5014171 Color changeable flashlight
05/07/1991US5014167 Visual signaling apparatus
05/07/1991US5013487 Infrared radiation absorbing glue glass composition
05/01/1991CN2076194U Variable colour lamp with polarizing arrangement
04/1991
04/23/1991US5010452 Therapeutic lamp for biostimulation with polarized light
04/10/1991EP0420905A1 Light-source composed of gas-discharge tubes
04/04/1991DE3932216A1 Vehicular headlamp system giving early warning of obstacles - maintains main-beam headlamps in operation but masked by infrared filters while dipped headlamps are on
04/04/1991DE3931950A1 Overhead light providing simulated daylight - use cold light reflector fitted with daylight filter across its front opening
04/03/1991EP0420214A2 Lamp device and method of bonding mirror reflector to lamp
04/03/1991CN1050435A Focused light source and method
03/1991
03/28/1991DE3930214A1 Car signal lamp pair - has in each signal lamp LED(s) of specified type behind transparent disc of identical colour
03/27/1991EP0418535A2 Focused light source and method
03/27/1991CN2073975U Pneumatic projection rainbow lamp
03/26/1991US5002347 Stepped thickness spectral filter for focal plane flattening
03/22/1991CA2022936A1 Focused light source and method
03/19/1991US5001608 Therapeutic lamp emitting polarized light
03/19/1991US5000402 Kite illumination system
03/07/1991WO1991002923A1 Infrared radiation absorbing blue glass composition
03/06/1991EP0415164A1 Additive color mixing system with variable hue and saturation light sources
03/06/1991CN1049710A Lighting apparatus
03/05/1991CA2017244A1 Luminaire with changeable accent lighting
02/1991
02/27/1991EP0414580A1 Lighting apparatus
02/26/1991US4996632 Multi-color illuminating system
02/20/1991CN1049412A Grating-maaking method of rainbow light
02/19/1991US4994945 Lamp system for operating theatres and the like
02/19/1991CA2021655A1 Infrared radiation absorbing blue glass composition
02/13/1991CN1011575B Therapeutic lamp emitting polarized light
02/06/1991EP0411065A1 Illuminating system
02/05/1991US4990286 Zinc oxyfluoride transparent conductor
01/1991
01/23/1991EP0408717A1 Dippable headlamps.
01/16/1991EP0407759A1 Lighting device for the lighting of escalators or moving walkways
01/14/1991CA2017824A1 Illuminating equipment for the illumination of escalators or travelling walkways
01/10/1991DE3922830A1 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)
01/08/1991US4984143 Spotlight
01/08/1991US4984138 Console color display
01/08/1991US4983019 Endoscope light source apparatus
12/1990
12/27/1990EP0404629A1 Signalling lights for road vehicles
12/27/1990EP0403470A1 Colour filter cell
12/06/1990DE3916875A1 Signal light esp. multi-compartment signal lights for motor vehicle - uses green, red, and blue LED's combined so that single light is given with help of mix optics
11/1990
11/29/1990DE4016454A1 Lighting hood for food display counter - has low wattare high pressure sodium vapour discharge tubes with broad spectrum output and reflectors
11/29/1990DE3917101A1 Lighting array with comprehensive programme control - has 3 channel controller, remote keyboard, servo positioner, dimmer and colour mixing facility for 3 prim. colours
11/28/1990EP0399496A1 Selectable mechanical and electronic pattern generating aperture module
11/28/1990EP0399022A1 Vehicle light, in particular fog light or reversing light.
11/27/1990US4974136 Light fixture
11/27/1990US4974133 Lighting apparatus
11/24/1990CA2017337A1 Selectable mechanical and electronic pattern generating aperture module
11/22/1990DE3941799A1 Discharge lamp contg. mercury vapour among inert gases - eliminates physiological damage by limitation of ranges of wavelength and colour temp. under e.g. electronic control
11/20/1990US4972306 Compact variable diffuser for use in a luminaire
11/13/1990US4970628 Headlamp for automotive vehicles
11/07/1990EP0396219A2 Improved lamp system for operating theatres and the like
11/06/1990US4968631 Method for detecting amines and aldehydes using lanthanide chelate fluorophores based on dihydropyridine condensation products
10/1990
10/30/1990US4967328 Omnidirectional shock absorbing lamp mounting system for illuminated apparatus
10/04/1990WO1990011247A1 Zinc oxyfluoride transparent conductor
10/04/1990DE3910520A1 Method for producing an optical filter for homogenising an inhomogeneously luminescing surface
10/03/1990EP0311898B1 Phototherapy device
09/1990
09/20/1990DE3908148A1 Colour changer for an illumination device
09/18/1990US4958265 Symmetrical color changer system
09/11/1990US4956751 For producing light closely resembling natural daylight
09/11/1990CA1273911A1 Liquid outlet adapted to provide lighting effects and/or illumination
09/06/1990DE4006544A1 Signal lamp with unified appearance for motor vehicle - has coloured strips of lamp produced by application of lacquer or paint coating on housing
08/1990
08/29/1990CN1009331B Therapeutic lamp for biostimulation with polarized light
08/21/1990US4951177 Display device
08/14/1990US4949005 Tantala-silica interference filters and lamps using same
08/09/1990WO1990008673A1 Dippable headlamps
08/08/1990CN2060198U Automatic colour-changing illumination device
08/07/1990US4947291 Lighting device
08/01/1990EP0379970A2 Compact variable diffuser for use in a luminaire
07/1990
07/12/1990DE3843253A1 Dental illumination unit
07/05/1990DE3942246A1 Fahrzeugsignalleuchte Vehicle signal lamp
07/05/1990DE3844000A1 Writing and drawing set
07/05/1990DE3843522A1 Illuminating device, in particular for motor vehicles
07/04/1990EP0202974B1 Colour matrix display, its production and device including the same
07/03/1990US4939374 Irradiation device
06/1990
06/26/1990US4937714 Lighting system with halogen bulb
06/14/1990WO1990006246A1 Vehicle light, in particular fog light or reversing light
06/13/1990EP0372224A2 Diffusing pane
06/12/1990US4933816 Inspection/detection system with a light module for use in forensic applications
06/12/1990US4933813 Sunlight simulator
06/06/1990EP0371381A2 Filtering device for an irradiating apparatus
06/06/1990CN1042779A Illuminating system
05/1990
05/23/1990EP0369254A2 Tantala-silica interference filters and lamps using same
05/23/1990DE3938595A1 Blow moulding cheap sealed car lights - by closing two mould tools bound extruded tubing, cutting off tube, blowing it out to mould, cooling, demoulding and cutting off end
05/08/1990US4924147 High-frequency fluorescent marine light
05/08/1990US4924144 Matrix screen, its production process and matrix display means with several tones, controlled on an all or nothing basis and incorporating said screen
04/1990
04/19/1990WO1990004132A1 Illuminating system
04/03/1990US4914556 Spectral filter module
03/1990
03/14/1990CN1007174B Lighting device with simultaneous adjustable parameters
03/07/1990CN2054140U Adjustable colour and light fluorescent lamp set
02/1990
02/28/1990CN1006978B Device for elevator illumination
02/20/1990US4901922 Method and apparatus for creating a spectacular display
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