Patents for F21V 8 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems (27,053)
05/1979
05/08/1979CA1053925A1 Spectrophotometer for dual mode fluorescence analysis
05/01/1979US4152752 Illumination system and apparatus therefor
04/1979
04/10/1979US4149228 Compact uniform light diffuser and attenuator
04/10/1979US4149086 UV irradiation device
02/1979
02/20/1979US4141058 Light diffusing device
11/1978
11/07/1978US4124882 Light source for multiple image projection device
09/1978
09/26/1978US4117265 Hyperoptic translator system
09/12/1978US4113348 Channel illumination sheets
09/05/1978US4112335 Rapid pulse ultraviolet light apparatus
08/1978
08/29/1978US4110818 Illuminated flag or pennant
08/15/1978US4107763 Lamp adapting kit
08/08/1978US4104981 Indicator using changeable path through transparent material
08/01/1978US4104709 Surgeons headlight with continuously variable spot size
07/1978
07/25/1978US4102333 Head mounted lamp with joint observation eyepiece
07/18/1978US4101954 Device for variably illuminating an object
06/1978
06/27/1978US4097917 Rotatable light display
04/1978
04/11/1978US4084215 Strobe light having reduced electromagnetic radiation
04/04/1978US4082946 Apparatus for controlling the illumination of optical examination devices
01/1978
01/10/1978US4068118 Illuminated optical fiber display system
12/1977
12/13/1977US4062099 Method of making a shield for a radiation projector
11/1977
11/29/1977US4060722 Fibre optics display
11/29/1977US4059916 Light diffusing device
10/1977
10/11/1977US4053756 Illumination light-source device for an endoscope or the like
10/04/1977US4052120 Optical apparatus for producing a light curtain
09/1977
09/13/1977US4048486 Lighting device for fiber-optic systems
07/1977
07/05/1977US4034215 Decorative light display
06/1977
06/14/1977US4028831 Service indicating device
05/1977
05/24/1977US4025779 Optic fiber decorative device
05/24/1977US4025776 Door closure for fiber optic light source
05/10/1977US4023034 Light admitting means for photocell-controlled lighting fixture
04/1977
04/12/1977US4017155 Liquid crystal display device
04/12/1977US4017150 Wide-angle illuminating optical system with light guide
04/05/1977US4016534 Indicator device for automobiles
03/1977
03/15/1977US4012630 Lighting fitting
03/08/1977US4011001 Liquid crystal device
03/01/1977US4009535 Illuminated house number sign
02/1977
02/22/1977US4009382 Dental use
02/22/1977US4009381 Illuminated fiber optic jewelry
12/1976
12/21/1976US3999062 Spectrophotometer for dual mode fluorescence analysis
12/07/1976US3995934 Flexible light guide
11/1976
11/30/1976US3995151 Lighting ornament
11/02/1976US3989493 Methods for making a fiber optic display device
07/1976
07/27/1976US3971621 Method and apparatus for generating a relieflike contrast at microscopic images of a transparent phase object
07/13/1976US3968584 Illuminated sign
06/1976
06/22/1976US3964824 Light transmitter
05/1976
05/18/1976US3958114 Light diffusing device with light-guide cables and cable terminal
05/04/1976US3955075 Doorknob illuminating device
04/1976
04/20/1976US3951139 Fiberoptic headlight
03/1976
03/16/1976US3944350 Microfiche and reader
02/1976
02/17/1976US3938270 Visual display device
02/03/1976US3935654 Illuminated vehicular display sign
01/1976
01/20/1976US3934148 Fluorescent plastic controlled direction lamp
01/20/1976US3932926 Method of making optical fiber mounting arrangement