Matches 201 - 250 out of 385 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5237457 Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism  
An optical axis adjusting apparatus is provided and includes a laser beam source, a beam shaping prism for shaping a laser beam of elliptical flux emitted from the laser beam source into a laser...
5220553 Optical head  
In an optical head, a light beam emitted from a semiconductor laser is collimated by a collimator lens and the collimated light beam is incident on a unitary structure of first and second...
5172100 Automotive display apparatus  
A prism is installed at a lower part of the windshield near the dashboard with a first surface of the prism directed toward a viewing point of a driver and a second surface held in contact with the...
5159491 Combination collimating lens and correcting prism  
An optical element for collimating and rectifying divergent incident radiation comprises a first optical surface and a second optical surface titled with respect to the first optical surface. The...
5155633 Anamorphic achromatic prism for optical disk heads  
A multi-element, air-spaced prism system for use in a reflective-type optical media device having a light source to provide an incident light beam provides an achromatic, anamorphic prism which...
5155628 Optical transmission spectrometer  
An optical transmission spectrometer for transmission measurements of absorbing and scattering samples includes light sources mounted parallel to each other in a holder. The beams of light...
5153775 Display apparatus including two prisms with oppositely directed apex angles  
A display apparatus for a vehicle or the like prevents occurrence of a washout phenomenon or the like and is stable and high in visual observation even in an intense external light condition. The...
5153768 Multiple wavelength, multiple diode laser ROS  
A multiple diode laser ROS scanning system is modified to eliminate the need for buffering scan lines so that they can be brought into the required adjacent lines at a photosensitive surface. The...
5146364 Optical instrument for producing artificial rainbows  
This invention is directed to an optical instrument including a prism and a convex reflective surface for producing artificial rainbows which is used for a display in halls of entertainment as well...
5140469 Illumination apparatus for semiconductor fabrication including conical optical means  
A method of patterning a photoresist layer to provide an aperture having retrograde sidewalls is described. Illumination may be through a conical prism arrangement or a conical reflecting mirror...
5136417 Optical system  
A scanning thermal imager includes means to compensate for a degree of undesirable asymmetry introduced by an element such as a spherical lens operating in an off axis manner. The means can...
5084783 Focus-error detection using prism-enhanced spot size monitoring  
An apparatus and method is described for detecting focus errors in an optical head by positioning a prism in the optical path of a return light beam reflected from an optical recording medium. The...
4902098 Device for correcting the total distortion caused by the shape of a transparent wall  
Device used in aviation for in-flight reception of images corrects distortion resulting from the observation of a field of view through a wall (1) which is transparent in a given spectral band and...
4878720 Device for deflecting a bundle of light rays  
A device for deviating a bundle of light rays into a plane comprises a deflecting prism of constant deviation rotatable about an axis. The deflecting prism is a Wollaston type quadrangular prism...
4850686 Apparatus for adjusting light beam direction  
An apparatus for adjusting light beam direction comprises, for instance, two prisms, i.e., a first and a second prisms arranged, in order, along an incident direction of light beam; an incident...
4830443 Three-dimensional volumetric sensor  
A three-dimensional optical measurement system, where it is desired to move the light beam or plane to more than one position to increase the amount of data acquired. A rotating disk is provided...
4826292 Diffusion plate having predetermined divergence angle  
A diffusion plate useful for capturing a real image in an optical system. The plate has a roughened semi-transparent surface for diffusing incident radiation. The surface is comprised of cones...
4822974 Laser hold drilling system with lens and two wedge prisms including axial displacement of at least one prism  
A system for drilling or cutting holes with a laser provides for independent control of the beam angle and displacement from the system axis, thereby making it possible to cut truly cylindrical holes.
4792226 Optical fingerprinting system  
An optical fingerprinting system includes an optics/processor unit, a video monitor, a data terminal, and a printer. The optics/processor unit includes a slap print prism for providing slap...
4778232 Rocker arm loader  
A device and method for preloading a force against two counter-reciprocating (116 and 118) members has a rocker arm (136) having a fulcrum (114) and a predetermined force constantly applied against...
4770507 Prism optics and optical information processing apparatus  
An optical system for converting the shape of a light beam by making use of refraction of prisms comprises a prism optic which includes a complex prism constituted by combination of at least two...
4759616 Method and apparatus for anamorphically shaping and deflecting electromagnetic beams  
A right-angle optical prism is used to anamorphically shape and deflect by 90° a beam of electromagnetic radiation. Preferably, one of the prism's acute angles is cut at Brewster's angle, and the...
4750819 Anamorphic prism  
This invention relates to an anamorphic prism (11) for correcting an anisotropy of a radiation angle of a beam (14). The anamorphic prism (11) is constituted by a first prism (12) and a second...
4734906 Optical disk recording and readout system having read, write and coarse light beams  
A self contained, replaceable diode laser module for providing a fully collimated, de-astigmatized, and circular cross-sectioned beam. In the preferred embodiment a first compound spherical lens...
4717249 Diving mask with auxiliary lens  
A prism lens attached to the window of a diving mask at a position laterally removed from the normal line of sight through the window and having a planar surface (22) and a spaced spherical surface...
4711972 Photovoltaic cell cover for use with a primary optical concentrator in a solar energy collector  
A solar energy collector including a primary optical concentrator, one or more solar cells and an improved solar cell cover design is provided. Each of the solar cells includes a flexible cell...
4673249 Drive for a prismatic compensator  
Two prismatic wedges of a prismatic compensator are rotated in opposite directions by the same angular quantity for adjusting the prismatic effect with the aid of a crossed-over pull wire. The pull...
4656562 Optical integrator means for intensity modification of Gaussian beam  
Optical projection apparatus is disclosed for generating a planar light beam of substantially uniform intensity from a nonplanar multi-element light source projecting a beam having a generally...
4650284 Prismatic beam concentrator  
A bilateral prism having two angular wedge faces which receive two convergent incipient beams of indirect sunlight and having two angular V-groove faces which emit a concentrated sheet beam. The...
4637691 Mirror converging-type illumination optical system  
A mirror converging-type illumination optical system for converging light rays from a light source into substantially parallel light rays using a concave reflecting mirror having a secondary curved...
4609254 Multiple prism  
A cylindrical glass prism with one planar entry face which refracts incident beams and with multiple exit faces perpendicular to the refracted beams which are emitted without refraction and without...
4609250 Prismatic enlarger-reducer  
Two single-refraction prisms which produce enlarged or reduced images in two dimensions. The prisms have cylindrical members which can be revolved so as to emit the refracted beams without...
4603939 Revolving magnifying prisms  
Two prisms comprising a lower stage of four cylindrical members which refract and enlarge a beam in one dimension, and comprising an upper stage of four identical cylindrical members revolved 90°...
4598133 Organic glass for optical parts  
Organic glass having a high refractive index and excellent other physical properties and being suitable as materials for optical parts such as lenses and prisms. The organic glass comprises a...
4580879 In-line optical anamorphic beam expander/contractor  
An in-line anamorphic light beam expanding/contracting device utilizing two prisms and a planar mirror surface. The planar mirror surface reflectively directs the optical path of a light beam...
4539475 Temperature compensation system for a prism in an optical transducer  
A system that provides temperature compensation in an optical transducer that uses a prism for the purpose of determining a load applied thereto and which may be used to find the weight of an...
4515447 Optical adjustment device  
Two embodiments of an adjusting device for correcting misalignment in optical ray paths are disclosed. The first embodiment (FIGS. 1 and 3) has two transparent plane plates (21, 22) which are...
4514040 Prismatic refractor for concentrating solar energy on a suitable collecting surface, of fixed position with respect to time  
The present invention provides a fixed refractor of transparent material consisting of various afocal adjacent straight prismatic elements of specific dimensions which are asymmetrically arranged...
4497540 Optical system  
Disclosed is an optical system used in a spacecraft to observe a remote surface and provide a spatial and spectral image of this surface. The optical system includes aspheric and spherical mirrors...
4477148 Optical low-pass filter  
An optical low-pass filter is comprized of micro stripe prisms arranged on the surface of a transparent member. A transmissive medium which is of different refractive index from that of air is used...
4470662 Rotary optic switch  
A rotary optic switch for alternatively coupling a single light path to any one of a plurality of other light paths upon the relative rotation of a light deflecting means. A first deflecting means...
4451872 Process for the most uniform illumination of a surface by a collimated beam of rays and arrangement for laser diagnostic  
A process for the most uniformly possible illumination of a surface by a limated beam of rays with arbitrary distribution of the beam intensities. An equalization in intensity is achieved in a...
4405203 Atmospheric dispersion corrector  
An atmospheric dispersion corrector having a housing capable of mounting therein either a pair of single prisms or a pair of compound prisms which can be either rotated with respect to each other...
4398787 Optical leverage telecentric scanning apparatus  
An optical leverage telecentric scanning apparatus for scanning a large fat film transparency at a given location is disclosed, wherein the scan pattern from the transparency is detected for...
4397302 Non-focusing solar energy concentrator  
Non-focusing solar energy concentration apparatus comprising one or more solar energy absorbing surfaces defining a first area and solar energy transmissive material disposed adjacent the absorbing...
4350410 Multiprism collimator  
A special purpose optical collimator system which generates multiple collimated light beams, with precisely related angular separation of the beams. The system is comprised of a stack of relatively...
4340275 Rear projection screen with patterned lenticular prismatic structure  
A rear projection screen having a patterned lenticular prismatic structure formed on the front side for providing an asymmetrical viewing field of a substantially wider viewing angle in the...
4338012 Focusing screen  
This specification discloses a focusing screen adapted for use with the range finder of a camera, particularly a split image type focusing screen. This screen comprises a pair of portions desposed...
4333173 Optical information processor with prismatic correction of laser beam shape  
An optical information processor comprising a semiconductor laser device which has a rectangular light emitting region, a disk, and an optical system which includes a prism for converting a...
4319807 Rotating optical frequency chirp device  
A system for generating pulses of laser radiation which vary in frequency with time to achieve a chirp or frequency sweep in which single or multiple laser spectra in the form of mode lines are...
Matches 201 - 250 out of 385 < 1 2 3 4 5 6 7 8 >