Matches 251 - 300 out of 499 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
6118591 Imaging optical system for light beam scanning system  
An imaging optical system for a light beam scanning system for causing a light bundle deflected by a deflector to form an image on a predetermined surface to be scanned and causing the image of the...
6115193 Panoramic sensor head  
A device for creating a panoramic field of view comprises a first light passing incident surface which is a cylinder surface and a second incident surface which is a mirror surface onto which light...
6104552 Vehicular rearview mirror assembly with forward vision optical system  
An exterior rearview mirror for vehicles incorporates a forward vision improving system allowing improved visibility of the opposite roadway forward of the vehicle for safer passing. Preferably,...
6101048 Split field wide angle viewing system for vehicles  
A side-viewing optical system that provides wide-field viewing of image scenes on both sides of a vehicle, particularly in blind areas between the driver's direct peripheral vision and a image...
6101047 Catadioptric optical system for lithography  
Provided with an optical system which is applicable to an exposure apparatus used in the manufacture of semiconductors and includes a combination of a spherical mirror having a function of...
6097549 Bireflective lens element  
A bireflective lens element comprising a light input surface and a direct transmitting area communicating with the light input surface. A light source is disposed adjacent to the light input...
6094315 Image-forming optical system  
A high-performance and low-cost image-forming optical system made compact and thin by folding an optical path using reflecting surfaces having power. The optical system has a plurality of...
6072637 Zoom lens system  
A zoom lens system that is free from parallax, is compact, and offers excellent optical performance has, from the object side, a positive first lens unit, a negative second lens unit, a positive...
6038068 Aberration correction system and astronomical telescope having the same  
An aberration correction system having a first lens disposed at an object side; and a second lens disposed at an image side, wherein the first and second lenses have different dispersions (Abbe...
6028719 360 degree/forward view integral imaging system  
A 360 Degree Forward View Integral Imaging System comprises a panoramic imaging element capable of imaging a full 360 degree panoramic image and a forward image onto a single plane. This system can...
6020554 Tracking solar energy conversion unit adapted for field assembly  
A modular solar energy collector having elongated V-shaped side walls formed by a pair of coplanar panels for each side wall. The upper panels, occupying most of the wall area are diffusely...
6014272 Retroreflective lens  
A retroreflective lens includes: a single positive power lens element with an index of refraction N 1 and thickness T 1 ; a single negative power lens element with an index of refraction N 2 and...
5995294 Gradient index lens reflector  
A gradient index lens which reflects light and focuses a corresponding image. The reflector can be easily incorporated to optical devices, and is particularly suitable for encoders position...
5995304 Plastic lens  
A plastic lens has a flange provided with a reflecting plane, so that its inclination upon assembling can be detected and adjusted efficiently and accurately. This plastic lens has the flange at an...
5986822 Rearview mirror for motor vehicle, especially car or bus  
A rearview mirror for motor vehicle comprises an optical system and a reflect mirror which are properly intalled in the vehicle. The scene behind the vehicle can be imaged by the optical system and...
5982562 Lenses formed by arrays of reflectors  
A lens, suitable for directing radiation, comprises an array of planar reflecting elements or slats. Each reflecting element is of non-uniform extent or surface area t and/or is of non-uniformly...
5982558 REMA objective for microlithographic projection exposure systems  
A REMA objective 123 images an object plane 1 onto the reticle plane 33 and has a lens group 300 disposed in the half of the objective close to the reticle. The object plane 1 lies at a finite...
5973848 Retrofocus projection lens system and multivision projection display apparatus  
A retrofocus projection lens system comprising, in order from a large conjugate side a first lens group having a negative refracting power and including a plurality of lenses, a second lens group...
5959787 Concentrating coverglass for photovoltaic cells  
A concentrating coverglass allows efficient power generation for providing higher specific powers by space power arrays with weight penalties being countered by combining the functions of a solar...
5959784 Optical projection systems and projection-exposure apparatus comprising same  
The invention pertains to optical projection-exposure apparatus for photolithography that can focus a pattern defined by a mask onto a non-flat substrate. In one embodiment, piezoelectric elements...
5940222 Catadioptric zoom lens assemblies  
A catadioptric zoom lens assembly has a catoptric objective lens group with a forwardly facing primary mirror and a rearwardly facing first surface reflecting secondary mirror located forwardly of...
5903403 Imaging system using a compound elliptical concentrator  
An imaging system includes a compound elliptical concentrator having an illumination source at an entry aperture and having an exit aperture directed to project light onto the surface of an object....
5883746 Apparatus for beam splitting  
An apparatus for splitting a light beam into two sub-beams is formed of a stationary light source for generating a light beam, of a first polarization converter and of a deflection unit rotating...
5880891 High-resolution high-apertured objective  
The invention is directed to a high-resolution high-apertured objective which includes an object plane (1); a first lens group (LG1); a second lens group (LG2) downstream of the first lens group; a...
5841589 Panoramic optics assembly having an initial flat reflective element  
An optics assembly for observing a panoramic scene comprises a plurality of optical elements. A flat reflective element redirects light from a panoramic scene. A plurality of refractive elements,...
5835284 Catadioptric optical system and adjusting method  
A catadioptric optical system in which a first imaging optical system is constructed of a unidirectional optical apparatus which transmits outgoing light from a first plane in one direction only...
5834764 Non-imaging collector element for inputting seed monitoring signals to detector or optical fiber  
An improvement in a light collecting system for an agricultural seed monitor is disclosed. The light collecting system includes three optical surfaces: a convex lens surface, a planar surface, and...
5818649 Electromagnetic energy directing method and apparatus  
A method and apparatus for directing electromagnetic energy may be used as a directed energy weapon, illuminator for an active sensor and/or guidance system, counter-measure, or to ignite a fusion...
5815329 Tri-mirror multi-reflection optical path folding apparatus  
A tri-mirror multi-reflection optical path folding apparatus for optical scanner includes a light source, a reflection means, a lens set, a charged coupled device (CCD), and a base. The three...
5802335 Catadioptric optics for staring array detector system  
A FLIR staring array detector system for imaging an object scene using catadioptric optics has a cold shield efficiency approaching unity. The system provides a full format image of the object...
5729394 Multi-direction optical data port  
A mirror and lens assembly which selectively places a mirror or other reflective surface into or out of the light path of an optical transducer in an optical data port to redirect incoming and/or...
5689373 Eyepiece lens  
An eyepiece lens of the present invention and is arranged in a real image mode finder optical system consists essentially of a single positive meniscus lens convex on the object side having an...
5650877 Imaging system for deep ultraviolet lithography  
A catadioptric reduction system operating in the deep ultraviolet range projects a reduced image of a mask on a substrate. A reducing optic made of a material transmissive to deep ultraviolet light...
5644438 Optical device for viewing into restricted areas  
An optical device for illuminating and inspecting the interior of restricted spaces at a distance, comprising an elongated tubular housing having a distal end, a proximal sight end, and two...
5636066 Optical apparatus  
Exposure light from a pattern on a first surface advances through a first converging group, is then reflected at the periphery around an aperture on a first plane mirror, thereafter is reflected by...
5596454 Uneven surface image transfer apparatus  
Enhanced performance of an uneven surface image transfer apparatus is provided by using a well-defined convergent field of illumination that is nominally focussed at the stop of an imaging lens. An...
5594593 Rear view system for a vehicle  
An optical rear view system for a vehicle, having a reflector mounted to receive light from objects to the rear of the vehicle and to reflect it towards an observer, is provided with at least one...
5588743 Luminaires  
A luminaire, for example a luminaire for emergency lighting, comprises a light source and an optical element mounted behind the light source, the element being shaped as a fresnel type element so...
5552938 Projection device for projecting an original image onto a screen  
Disclosed is a projection optical system for projecting an original image onto a screen, including a projection lens comprising, in succession from the screen side, a first lens unit having...
5486953 Hyperhemispherical field of view optical sensor head  
An optical sensor head (400) for providing an optical sensor with a hyperhemispherical field of view is disclosed. The optical sensor head (400) includes first and second lenses (430 and 440), each...
5453880 Overhead projector with achromatic Fresnel lens  
A low-profile, transmissive overhead projector (OHP) employs a novel condensing lens system having a catadioptric Fresnel lens and a dioptric Fresnel lens. Each of the lenses exhibits chromatic...
5448415 Device for emitting light diverging along imaginary plane  
There is disclosed a device for emitting light diverging along an imaginary plane. This device includes a light source, a collimating lens, and a cylindrical optical element which are mounted...
5442484 Retro-focus type lens and projection-type display apparatus  
A retro-focus-type lens is provided from a large conjugate side with a first lens group having a negative refracting power, a second lens group having a positive refracting power which is spaced...
5436768 Laser beam receivers  
A laser beam receiver including a transparent disc and a mirror arrangement which are fastened on a base element. A light spot formed on the disc by a laser beam may only be seen optimally,...
5373151 Optical system including focal plane array compensation technique for focusing and periodically defocusing a beam  
An imaging optical system is described including an array of photodetectors, each photodetector having a surface, and a focusing system for focusing a beam of electromagnetic infrared energy on the...
5343330 Double refraction and total reflection solid nonimaging lens  
A nonimaging lens consists of a solid body of light-propagating material defining a first light-refracting surface, a second light-reflecting surface and a third light-refracting surface. To...
5323269 System for transmitting and monitoring laser light and method for optical monitoring of a transmission path  
A system and method for transmitting and monitoring laser light includes a laser for emission of a first beam with a given wavelength into a transmission path. A second beam is generated with a...
5321548 Real image mode variable magnification finder optical system  
A real image mode variable magnification finder optical system comprising an objective lens system including a rotatable prism, an image erecting optical system for erecting an image formed by the...
5319399 Optical alignment device  
An optical device for aligning an instrument so that active zones in the instrument are the same distance from the plane of a remote object comprising a lens attached to the instrument, the lens...
5317451 Albada finder  
An albada finder comprising an objective lens group, which includes two negative lenses, and an eyepiece lens group, which includes two positive lenses, arranged in this order from the object side....
Matches 251 - 300 out of 499 < 1 2 3 4 5 6 7 8 9 10 >