Matches 101 - 150 out of 516 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
6937401 Projection lens  
A projection lens of the retrofocus type that has a long back focus and that can project with a high contrast, exhibits small aberrations and converts a light path inside the lens. A first lens set...
6924942 Holographic storage lenses  
Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a single-component design. The lenses can be used to both record to photorefractive...
6913365 Light diffusive protective film  
A light diffusive protective film for a surface light source device for protecting other base material and improving the luminance of information display is disclosed which comprises a transparent...
6903875 HMD device with imaging optics comprising an aspheric surface  
An HMD device is provided, comprising an image element for generating an image and imaging optics projecting the image such that it is perceivable by a user wearing said HMD device, wherein said...
6894843 Optical apparatus for a line scanner system with reduced optical total track  
An optical apparatus for a line scanner system comprises a main lens group, an aspherical field flattener lens and a line sensor arranged sequentially along the same optical axis. The main lens...
6882483 Optical system with particular optical distortion  
An optical system satisfies conditions related to the optical distortion at the maximum image height and at eighty and sixty percent of the maximum image height in order to reduce the actual...
6876500 Single focus telescopic lens  
A single focus telescopic lens includes, in order from the object side: a diaphragm stop; and first and second lens components, each lens component being of positive refractive power and each...
6867931 Dual-imaging optical system  
An optical imaging system especially for microlithography includes a first imaging system forming an intermediate image of an object, and a second imaging system forming, on a surface, an image of...
6865031 Imaging lens system and image taking apparatus using the same  
This specification discloses an imaging lens system having a front lens component disposed forwardly and a rear lens component of positive power disposed rearwardly with an aperture stop interposed...
6842295 Imaging lens formed of aperture diaphragm and only two lens components  
An imaging lens for an image pickup device is formed of only two lens components that are lens elements. An aperture diaphragm is on the object side of the object-side lens component. All four lens...
6833965 Optical element using organic-inorganic composite material  
A lightweight and homogeneous optical element exhibiting favorably weak birefringence and hygroscopicity as well as superior productivity and producing minimal chromatic aberrations is formed by...
6831794 Objective with at least one aspheric lens  
A lens has at least one aspheric lens surface, an objective with at least one aspheric lens surface, and a projection exposure device for microlithography and a method for the production of...
6829284 Light source device and optical pickup  
A light source device has a semiconductor laser for emitting an elliptical divergent beam having a light intensity distribution in an elliptical form; and a beam shaping element for converting an...
6819505 Internally reflective ellipsoidal collector with projection lens  
The present invention is directed to an optical lens for capturing, homogenizing and transmitting substantially all of the light emitted by a light source, such as a light emitting diode. The...
6819506 Optical lens system for projecting light in a lambertion pattern from a high power led light source  
An optical lens having a body with a front face and a rear cavity for cooperatively receiving and optically aligning a high power light emitting diode source with respect to a primary central...
6801368 System for converting optical beams to collimated flat-top beams  
An optical beam transformation system includes a first and a second optical element, each of which has a non-reentrant surface. The system transforms a substantially non-uniform optical input beam...
6801366 Projection lens system and projection image display apparatus using the same  
When a projection lens system used for a rear projection type image display apparatus has a first lens group having an aspherical lens surface, a second lens group, a third lens group sharing...
6778336 Reduced visibility surface  
A surface configuration obscures an object from detection by night vision devices, ultraviolet devices and infrared devices. The surface configuration is three dimensional, having spaced inner and...
6775073 Real image type zoom finder  
The invention relates to a compact, high-performance yet wide-field real image type zoom finder comprising a positive objective optical system Ob and a positive eyepiece optical system Ep and...
6754007 One-dimensional optical condensing system, optical lighting system for correcting light intensity distribution, and exposure head  
Provided are an optical correcting system which can form a linear image or illuminating light having a substantially uniform light intensity distribution without reducing the efficiency of use of...
6744563 Collimating lens  
The present invention is a collimating lens, comprising a lens having at least one aspherical surface, wherein the collimating lens is used in a wavelength range of 1.2 μm to 1.7 μm and...
6714361 Optical system for distorted imaging of an object  
An optical system for distorted imaging of an object, especially for photographic cameras, is based on a distorting optical system ( 1 ) consisting of at least one lens where at least one of the...
6710942 Super wide-angle lens system and shooting device using the same  
A large aperture super wide-angle lens system has an angle of view of 2ω=94° or more, an f-number of about 1.4, small variation in close-range aberrations, compactness, and high optical...
6665125 Optical device and method for focusing a laser beam  
The invention relates to an optical device for focusing a substantially elliptical laser beam comprising: means for collimating a substantially elliptical laser beam so to generate a collimated...
6650485 Photographic lens  
A compact photographic lens for a digital camera is disclosed. The photographic lens has only two lens elements, yet provides excellent imaging even at the periphery of the image field. The...
6643068 Collimators and collimator arrays employing ellipsoidal solid immersion lenses  
An ellipsoidal solid immersion lens (ESIL) for use as a collimator for a waveguide. The ESIL has a refractive index n, an ellipsoidal surface portion defining a geometrical ellipsoid with...
6633439 Optical recording system with aspherical solid immersion lens  
The present invention provides an improved optical reading and recording system utilizing optical system employing an aspherical solid immersion lens (SIL). The improved optical system has an...
6625103 Aspherical objective lens for reading information from optical disks of different thickness and manufacturing method therefor  
An aspherical objective lens and its manufacturing method are disclosed which allows for forming an optical spot with fewer side lobes on optical discs having a continuous lens plane and substrates...
6560038 Light extraction from LEDs with light pipes  
A non-imaging optical coupler that is a figure of revolution combining a light-transmitting body defining a recessed input cavity, a transparent droplet-shaped encapsulant of a light-emitting...
6552852 Catoptric and catadioptric imaging systems  
The invention features an imaging system for imaging an object point to an image point. The system includes: a beam splitter positioned to receive light rays from the object point and separate each...
6529336 Color corrected projection lenses employing diffractive optical surfaces  
A projection television system ( 10 ) is provided which has a CRT ( 16 ) and a projection lens system ( 13 ) for forming an image on a screen ( 14 ). The projection lens system ( 13 ) is...
6507443 Lens, lens device, camera module and electrical equipment  
A lens comprises a single lens, both surfaces of the lens is a meniscus-shaped and aspheric lens, and side surface side thereof is a convex surface, and, when a refractive index of the lens is...
6504652 Apparatus and method for laser processing  
A CO 2 laser beam 12 is converted into a beam of uniform intensity at the position of a phase matching element 15 by an intensity converting element 14 and the phase matching element 15 ....
6493143 Diffractive optical element and optical system incorporating the same  
A diffractive optical element, as well as an optical system incorporating the same, has a comparatively large minimum grating pitch and, hence, is easy to produce. The diffractive optical element...
6469838 Illumination device having light intensity distribution converting elements  
A light intensity distribution converting device is formed by a transparent body having a first curved surface, a second curved surface, and an outer circumferential surface extending between the...
6462888 Diffuser master  
A diffuser master is provided which is manufactured mechanically instead of holographically. The master can be made from a suitable substrate including relatively hard materials such as plastic,...
6456439 Collimator employing an ellipsoidal solid immersion lens  
An ellipsoidal solid immersion lens (ESIL) for use as a collimator for a waveguide. The ESIL has a refractive index n, an ellipsoidal surface portion defining a geometrical ellipsoid with...
6452727 Projection lens  
A projection lens arranged to project an image formed on a display panel onto a screen includes a plurality of lens units movable along an axis for varying magnification, wherein at least one of...
6381044 Method and apparatus for correcting aberrations in photon collection devices  
A cover plate on a holographic optical element (HOE) device corrects for aberrations, such as spherical aberrations. The HOE device includes an emulsion material, having a recorded interference...
6373640 Optical systems for digital cameras  
Optical systems for use in digital cameras are provided. The systems can be switched between three optical paths ( 1,2,3 ): a first path ( 1 ) for through-the-lens (TTL) viewing; a second path ( 2...
6373571 Disposable contact lens for use with an ophthalmic laser system  
A device for use in laser ophthalmic surgery includes a laser system, a disposable contact lens and an adjustable retainer ring for mounting the contact lens on the laser system. In order to...
6349004 Head mounted display viewing optics with improved optical performance  
A lens design form is used for a viewing optical system or magnifier that includes a cemented doublet and a weak aspheric element, for example, made of acrylic, and having a diffractive kinoform...
6330524 Scanning optical system  
The present invention has the object to make an f.O slashed. lens constituting a scanning optical system such as a laser printer, etc., which is of a single lens configuration, and higher in...
6295168 Refractive optical system that converts a laser beam to a collimated flat-top beam  
An optical system having a first positive optical element having an aspherical surface; and a second positive optical element having an aspherical surface. The first and second optical elements are...
6285506 Curved optical device and method of fabrication  
An optically curved device and method of fabrication are presented wherein a flexible layer is bonded to a thick epoxy layer which functions to conform the flexible layer to a desired shape. The...
6285513 Optical element  
An optical element, comprises a silicon based resin satisfying following three conditional formulas: (1) (number of silicon atoms residing as R1SiO 3 /2 in the silicon based resin)/(total number of...
6195208 Single aspherical lens for de-astigmatism, collimation, and circulation of laser beams  
An astigmatic and non-circular diverging input laser beam is converted into a collimated and circular output laser beam with its astigmatism corrected using a single aspherical lens. The input...
6181484 Compact two-group wide-angle zoom lens  
In a compact wide-angle zoom lens having a two-group configuration composed of positive and negative lens groups, the first lens group is composed of G1A and G1B groups, while a stop is disposed...
6181478 Ellipsoidal solid immersion lens  
A solid immersion lens (SIL) of refractive index n having an ellipsoidal surface portion defining a geometrical ellipsoid with geometrical foci F 1 , F 2 along a major axis of length M. The...
6160671 Retro-focus lens  
A retro focus lens having three lens groups arranged, in order from the longer conjugate length side of the lens, as follows: a negative first lens group G 1 , a positive second lens group G 2 ,...
Matches 101 - 150 out of 516 < 1 2 3 4 5 6 7 8 9 10 11 >