Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8009365 | Projection optical system The projection optical system uses a plurality of wavelengths or a wavelength band within a wavelength range from a visible region to a near ultraviolet region. The double-telecentric projection optical system includes: a first lens group with a positive power; a se... | 08/30/2011 |
| 7916398 | High performance front objective for video metrological system This high performance front objective lens system intended primarily for use with a video inspection apparatus has a first lens set in the form of a doublet, with a second lens set intermediate the first lens set and the imaging plane. The second lens set includes a... | 03/29/2011 |
| 7782540 | Optical head apparatus and optical information recording and reproduction apparatus Disclosed is an optical head apparatus comprising: a light source; a collimating means of converting a beam of light emitted from the light source into a substantially parallel beam of light; a focusing means of focusing the light onto an information medium surface;... | 08/24/2010 |
| 7646543 | Distortion tuning of quasi-telecentric lens A non-linear modification to telecentric object space together with alteration of working distance provides a distortion adjustment feature. The modification to telecentric object space can be manifest as a spherical aberration in an entrance pupil. The change in wo... | 01/12/2010 |
| 7570433 | Photoelectric encoder A photoelectric encoder has a telecentric optical system in which a first lens and an aperture located at a focal position of the first lens are interposed between a main scale and a photoreceptor. At least a second lens is interposed between the aperture and the ph... | 08/04/2009 |
| 7441908 | Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus A projection optical system for use in an image projection apparatus illuminating a light valve forming an image in accordance with a modulating signal with illumination light from a light source. The projection optical system includes first and second optical syste... | 10/28/2008 |
| 7405882 | Image display device and projector Aspects of the invention can provide an image display device for modulating light from a light source on the basis of display image data to display an image. The image display device can include a first optically modulating device for modulating light from the light... | 07/29/2008 |
| 7400380 | Two-dimensional light-modulating nano/micro aperture array and high-speed nano pattern recording system utilized with the array A two-dimensional light-modulating fine aperture array apparatus includes a spatial light-modulating unit for adjusting quantity of incident light by using a plurality of light amount adjusting cells (liquid crystal cells or micromirrors) arrayed in matrix form, a t... | 07/15/2008 |
| 7350915 | Lens having at least one lens centration mark and methods of making and using same A lens having at least one lens centration mark formed on a major surface of the lens is disclosed. The lens centration mark may be located at the intersection of a first axis and the major surface, where the major surface is symmetrical about the first axis such th... | 04/01/2008 |
| 7317578 | Imager to imager relay lens system A lens system for use in a two-stage projection system that relays light output from a first imager on a pixel-by-pixel basis onto a second imager (e.g. an LCOS). The lens system includes a double gauss lens set having a distortion of less than about 0.015% with at ... | 01/08/2008 |
| 7301576 | Electronic imaging apparatus 1. An electronic imaging apparatus comprises an imaging optical system, and an imaging device which converts an object image obtained via the imaging system to an electric signal. All of medium of optical elements which is disposed in a space between a most object s... | 11/27/2007 |
| 7286232 | Fluorescence filtering system and method for molecular imaging An optical system is disclosed that can be used for fluorescence filtering for molecular imaging. In one preferred embodiment, a source subsystem is disclosed comprising a light source and a first set of filters designed to pass wavelengths of light in an absorption... | 10/23/2007 |
| 7282715 | Thermal imaging cameras A modular hyperspectral thermal camera that combines a wide field-of-view with a low erroneous recognition rate is described. The modular hyperspectral thermal camera provides such low erroneous recognition rates without any requirement for cryogenically cooling the... | 10/16/2007 |
| 7274517 | Micromirror array lens with focal length gradient An optical system includes a refractive lens system and a micromirror array lens with angled positioning to improve light efficiency. The micromirror array lens is optically coupled to the refractive lens system, and has a focal length gradient. The micromirror arra... | 09/25/2007 |
| 7265829 | Reflective optic system for imaging microplate readers A reflective light imaging system for use in high-throughput screening of samples disposed in multiple-well plates. The system can include a set of mirrors and lenses. The first mirror has a central aperture through which light from the object passes. The first mirr... | 09/04/2007 |
| 7261420 | Projection optical unit and projection image display apparatus A projection optical unit for enlarged projection of an image displayed by an image display element includes a first projection optical unit having positive refractive power, and a second projection optical unit having positive refractive power for further enlarging... | 08/28/2007 |
| 7239453 | Projection optical system and projection exposure apparatus A catadioptric projection optical system includes a first optical system, for receiving light from an object, a second optical system, for forming an image of the object on an image plane, and a third optical system disposed optically between the first optical syste... | 07/03/2007 |
| 7230770 | Projection lenses having color-correcting rear lens units Projection lenses for use with pixelized panels (PP) are provided. The projection lenses have a first unit (U1) separated from a positive second unit (U2). The lenses are telecentric on the short conjugate side, have a large field of view in the direct... | 06/12/2007 |
| 7224520 | Compact fast catadioptric imager A compact, optically fast catadioptric imager. In one embodiment, the catadioptric imager of this invention includes a first group of optical elements optically disposed to receive electromagnetic radiation from an object and having positive optical power, a second ... | 05/29/2007 |
| 7224540 | Extended depth of field imaging system using chromatic aberration An imaging system (FIG. 3) is disclosed that has a wavelength dependent focal shift caused by longitudinal chromatic aberration in a lens assembly (203) that provides extended depth of field imaging due to focal shift (213,214) and increased res... | 05/29/2007 |
| 7210797 | Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus In a projection type image display apparatus, a projector optical unit for projecting an image onto a screen while magnifying a size of the image to be projected with respect to an original size of the image displayed by an image forming element, has a group of lens... | 05/01/2007 |
| 7190991 | Multi-mode internal imaging The invention described herein provides systems and methods for multi-modal imaging with light and a second form of imaging. Light imaging involves the capture of low intensity light from a light-emitting object. A camera obtains a two-dimensional spatial distributi... | 03/13/2007 |
| 7187430 | Advanced illumination system for use in microlithography A system for microlithography comprises an illumination source; an illumination optical system including, in order from an objective side, (a) a first diffractive optical element that receives illumination from the illumination source, (b) a zoom lens, (c) a second ... | 03/06/2007 |
| 7167316 | Projection lens assembly A projection lens assembly is provided that includes first, second, third, fourth, fifth, and sixth lenses. The second, third, fifth, and sixth lenses of the projection lens assembly form a double gauss-type lens assembly. The first lens is configured to provide tel... | 01/23/2007 |
| 7160249 | Endoscope image pickup unit for picking up magnified images of an object, a focus adjustment apparatus and method, and a focus range check apparatus and method for the same An endoscope image pickup unit is disclosed that captures magnified images of an object. An objective optical system of the image pickup unit includes, in order from the object side, a front lens group having positive refractive power and an aperture stop. Various c... | 01/09/2007 |
| 7154679 | Optical arrangement with a telecentric beam region An optical arrangement with telecentric beam region for imaging objects, preferably a microscope, comprises in a main beam path at least one infinity-imaging objective and at least one eyepiece with an eyepiece intermediate image plane and a tube lens of suitable fo... | 12/26/2006 |
| 7154683 | Five-element optical device An optical device with five air-spaced optical elements. An optical device in the form of an eyepiece is disclosed with a center negative lens and two outer positive lenses on each side of the intermediate negative lens. The eyepiece transmits light from an object t... | 12/26/2006 |
| RE39424 | Telecentric lens systems for forming an image of an object composed of pixels Telecentric lens systems for use with pixelized panels, such as LCD or DMD panels, are provided. The systems have a long aperture stop to object distance (ASOD) and a high level of aberration correction, including a high level of lateral color correction. Preferably... | 12/12/2006 |
| 7136230 | Image pickup system The invention relates to an electronic image pickup system that enables a wide image-pickup, and ensures that even when an image is printed, sufficient image quality and clearness are obtained from the center to as far as the margin of the image and the image of a s... | 11/14/2006 |
| 7123417 | Method of forming an image In a method of forming an image, pixel portions of a spatial light-modulation element are two-dimensionally arranged, and individually modulated portions of light are applied to the spatial light-modulation element, according to control signals. A first image-formin... | 10/17/2006 |
| 7119965 | Head mounted projection display with a wide field of view A ultra-wide field of view head mounted display has been realized by integrating an ARC display component having a greater than about 70 degrees field of retro-reflection with an optical tiling display which provides a greater than about 80 degrees horizontal field ... | 10/10/2006 |
| 7120309 | Ghost image correction system and method A new and useful method and system for correcting for ghost images in a telecentric optical system is provided. Ghost images generated from planar optical surfaces in the image space after the major elements of a telecentric optical system are shift invariant. In ot... | 10/10/2006 |
| 7119966 | Projection lens system and projector A projection lens system that projects projection light from a light modulator onto a screen and which is telecentric on an input side is provided. The projection lens system comprises a first meniscus lens that is disposed closest to the screen, is convex on a scre... | 10/10/2006 |
| 7116487 | Image pickup system The invention relates to an electronic image pickup system that enables a wide image-pickup, and ensures that even when an image is printed, sufficient image quality and clearness are obtained from the center to as far as the margin of the image and the image of a s... | 10/03/2006 |
| 7092168 | Projection optical system and projection exposure apparatus A catadioptric projection optical system for projecting an image of an object onto an image plane through two intermediate image formations. The catadioptric projection optical system includes a first optical system, for receiving light from the object, including a ... | 08/15/2006 |
| 7085449 | Waveguide coupling mechanism A system is disclosed. The system includes an external waveguide and an IC coupled to the external waveguide. The IC includes at least two lenses and a second waveguide. The lenses couple radiant energy from the external waveguide to the second waveguide. ... | 08/01/2006 |
| 7079321 | Illumination system and method allowing for varying of both field height and pupil A method and system allow for changing (continuously or variably) both a field height and pupil of a beam that illuminates an object field. In one example, the object field can have a pattern generator (e.g., one or more reticles, spatial light modulators, or the li... | 07/18/2006 |
| 7075622 | Projection lens and optical projector provided with the same A fixed-focus projection lens 2 comprises practically six lenses; a single lens having negative refracting power serving as a first lens 10, a single lens having positive refracting power serving as a second lens 20, a single lens having negativ... | 07/11/2006 |
| 7061561 | System for creating a patterned polarization compensator A system for creating a patterned polarization compensator (550) has a retardance characterization system (560) for optically scanning the spatially variant retardance of a spatial light modulator (210). A compensator patterning system (565 | 06/13/2006 |
| 7057825 | Projection lens system and projector A projection lens system that projects projected light from a light modulator to a screen, comprising in order from a screen side: a first lens group with a negative refractive power; a second lens group with a positive refractive power; and a third lens group with ... | 06/06/2006 |
