Patents
Patents for G02B 3 - Simple or compound lenses (21,564)
01/1979
01/23/1979CA1046823A1 Double focusing microscope for registering semiconductor wafers and masks
01/16/1979US4134651 Method of making an assembly
12/1978
12/26/1978CA1044930A1 Multifocal lenses and method of making same
12/19/1978US4130346 Super imposed fresnel lenses for channel indicators
12/05/1978CA1043606A1 Single optical lens with large aperture and large field
10/1978
10/31/1978US4123142 Ambiguity plane optical processor incorporating magneto-optic, bubble domain histograph
10/24/1978CA1040907A1 Glass clad glass lenses and method of making same
10/03/1978US4118114 Low-glare overhead projector
09/1978
09/19/1978US4114983 Randomly spaced peaks, prisms, lenses
09/19/1978CA1038954A1 optical window set up in a laser head
09/12/1978US4114037 Multiple lens system for an optical imaging device
08/1978
08/22/1978US4108622 Method of making miniature coupling lens
08/22/1978US4108540 Refractor-reflector radiation concentrator
08/08/1978US4105292 Optical element to assure a minimum spacing
07/1978
07/11/1978US4099848 Optical correction lens
05/1978
05/30/1978US4092651 Device and method for exposing phosphor dots in a color television picture tube
05/16/1978US4089594 Sun screen structure
05/16/1978US4089592 Microscope
05/09/1978US4088470 Lenses for eyeglasses
04/1978
04/04/1978US4082433 Louvered echelon lens
01/1978
01/24/1978US4069812 Solar concentrator and energy collection system
01/17/1978US4068918 Eye cooler for sunbathers
01/10/1978US4067937 Method for forming a light transmission glass fiber equipped with an optical lens
01/10/1978US4067646 Eyeground inspecting contact lens
01/03/1978US4066335 Variable density lens
12/1977
12/06/1977US4061415 Nutating radiation deflecting method and apparatus
11/1977
11/22/1977US4059345 Fixture for mounting bar lens array in electrophotographic apparatus
10/1977
10/04/1977US4052123 Correcting lenses utilized in the manufacture of fluorescent screen of color picture tubes
10/04/1977US4052122 Correcting lenses utilized in the manufacture of fluorescent screen of color picture tubes
08/1977
08/16/1977US4042821 Remote control light receiver
08/02/1977US4039827 Method for marking intraocular lenses
07/1977
07/26/1977US4037936 Correcting lens having two effective surfaces
07/26/1977US4037929 Optical projection device and an optical reader incorporating this device
06/1977
06/21/1977US4030790 Process for fabricating lenses for manufacturing cathode ray tube screen structures
06/14/1977US4029395 Method for altering the focal zone of a lens system
06/07/1977US4027952 Single optical lens with large aperture and large field
05/1977
05/24/1977US4025157 Gradient index miniature coupling lens
04/1977
04/19/1977US4018587 Method for producing a curved glass die having an aspherical polished concave face
03/1977
03/15/1977US4012136 Projection device for photogrammetrical purposes
03/15/1977US4012109 High magnification optical apparatus
03/15/1977US4011857 Solar energy converter and elongated Fresnel lens element
02/1977
02/08/1977US4006971 Reflective imaging apparatus
11/1976
11/23/1976US3993401 Retroreflective material including geometric fresnel zone plates
11/16/1976US3992206 Method of making lenticular surfaces
11/09/1976US3990798 Method and apparatus for aligning mask and wafer
11/02/1976US3989360 Optical device
09/1976
09/28/1976US3982822 Composite Fresnel lens assembly
09/21/1976US3981709 Chamfering, grinding
09/14/1976US3980399 Aspheric optical elements
09/14/1976US3980391 Optical fiber transmission compensator
08/1976
08/03/1976US3972593 Louvered echelon lens
07/1976
07/13/1976US3969575 Opto-electronic focus detection system
05/1976
05/25/1976US3959580 Directly viewable stereoscopic projection system
04/1976
04/13/1976US3950074 Image-transmitting light-conducting fibre array
04/13/1976US3949612 Liquid sampling
03/1976
03/30/1976US3947186 Eye-test lens and method
03/30/1976US3947086 Device for tilting a field in an optical system
03/16/1976US3944325 Semi-liquid stabilized optices
02/1976
02/24/1976US3940788 Color television camera optical system
02/03/1976US3936163 Vision examination lens system
02/03/1976US3936151 Correction lenses utilized to form fluorescent screens of colour picture tubes
02/03/1976US3936149 Non-homogeneous objective lens having an aperture diaphragm
01/1976
01/20/1976US3933454 Method of making optical waveguides
01/13/1976US3932148 Method and apparatus for making complex aspheric optical surfaces