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| Number | Title | Issue Date |
| 8179607 | Projection zoom lens and projection-type display apparatus A projection zoom lens projects an optical image of rays, which are irradiated from a light source onto a light valve and are modulated by a predetermined image displayed on the light valve, onto a screen. The projection zoom lens includes a plurality of lens groups... | 05/15/2012 |
| 8023196 | Projection lens and projection device using the same A projection lens and a projection device using the same are provided. The projection device includes a projection lens and an optical element. The projection lens includes a first lens group and a second lens group from an image side sequentially. The first lens gr... | 09/20/2011 |
| 7957069 | Projection optical system A projection optical system comprises a plurality of lenses disposed along an optical axis of the projection optical system; wherein the plurality of lenses is dividable into four non-overlapping groups of lenses, such that a total refractive power of each group of ... | 06/07/2011 |
| 7773305 | Wide-angle lens and image capturing apparatus A wide-angle lens is disclosed that includes a front lens group and a rear lens group that are arranged in order from an object side to an image side with an aperture being arranged between the front lens group and the rear lens group. The front lens group includes ... | 08/10/2010 |
| 7679832 | Projection lens system An exemplary projection lens system includes, in the order from the magnification side to the reduction side thereof, a first lens with a negative refractive power, a second lens with a positive refractive power, a lens group with a negative refractive power, and a ... | 03/16/2010 |
| 7656587 | Projection lens system An exemplary projection lens system includes, in order from the magnification side to the reduction side thereof, a first lens with negative refraction power, a second lens with positive refraction power, a third lens with negative refraction power, and a fourth len... | 02/02/2010 |
| 7626764 | Projecting lens system A projecting lens system includes a first lens positive in power, a second lens negative in power, a third lens positive in power, and a fourth lens positive in power. The projecting lens system meets a criteria of 1.4 | 12/01/2009 |
| 7573644 | Light pipe assembly including a plurality of lenses and related projector system A light pipe assembly includes a lens set and a holder. The lens set includes a first lens, a second lens, a third lens, and a fourth lens. The first lens has a first surface and a fifth surface adjacent to the first surface. The second lens has a second surface and... | 08/11/2009 |
| 7414781 | Catoptric objectives and systems using catoptric objectives In general, in a first aspect, the invention features a system that includes a microlithography projection optical system. The microlithography projection optical system includes a plurality of elements arranged so that during operation the plurality of elements ima... | 08/19/2008 |
| 7368731 | Method and apparatus which enable high resolution particle beam profile measurement The PSF for a metrology array for high resolution particle beam profile measurement has been improved by improving five major elements of the metrology array. While improvement in each of the five elements provides and improved PSF, a combination of all five of the ... | 05/06/2008 |
| 7365349 | EUV light source collector lifetime improvements An apparatus and method for cleaning a plasma source material compound from a plasma produced EUV light source collector optic which may comprise reacting the plasma source material compound with hydrogen to form a hydride of the plasma source material from the plas... | 04/29/2008 |
| 7324169 | Projection optical system, projection television, and method of manufacturing lens included in projection optical system Provided are a projection optical system, a projection television, and a method of manufacturing a lens included in the projection optical system. The projection optical system includes lenses for projecting color beams onto a screen. A color filter layer, absorbing... | 01/29/2008 |
| 7320521 | Optical engine architectures An optical engine architecture that operates as either a two-imager or a three-imager optical engine. The optical engine uses a first PBS cube and a second PBS cube having an optical axis between them. In between the first PBS cube and second PBS cube are two quarte... | 01/22/2008 |
| 7317582 | Zoom lens, video enlarging/projecting system, video projector, rear projector, and multivision system The present invention includes three or more lens groups. These are arranged in the order of a first lens group (11) that has positive refractive power and a second lens group (12) that has negative refractive power, as seen from the side having the lo... | 01/08/2008 |
| 7310187 | Projection objective, especially for microlithography, and method for adjusting a projection objective A method of adjusting a projection objective permits the projection objective to be adjusted between an immersion configuration and a dry configuration with few interventions in the system, and therefore to be used optionally as an immersion objective or as a dry ob... | 12/18/2007 |
| 7289279 | Lithographic objective having a first lens group including only lenses having a positive refractive power A projection objective includes a first lens group (G1) of positive refractive power, a second lens group (G2) of negative refractive power and at least one further lens group of positive refractive power in which a diaphragm is mounted. The first lens... | 10/30/2007 |
| 7268952 | Catadioptric projection system, and exposure apparatus having the same A catadioptric projection system for forming an intermediate image of a first object plural times, and images the intermediate image onto a second object includes at least two deflective reflectors, a lens unit arranged in an optical path between the two deflective ... | 09/11/2007 |
| 7259918 | Projection device A projection device includes an image source unit, a first projecting optical system, an intermediate optical system, and a second projecting optical system. The image displaying area of the image source unit is tilted with respect to a first virtual plane, and an i... | 08/21/2007 |
| 7259912 | Fresnel lens having reduced distortions A display device for displaying images in a rear projection display device is provided. The display device may include, amongst other structure, a screen including a lens portion and a frame portion. A tensioner may be operatively associated with the screen and may ... | 08/21/2007 |
| 7239450 | Method of determining lens materials for a projection exposure apparatus A method of determining materials of lenses contained in an optical system of a projection exposure apparatus is described. First, for each lens of a plurality of the lenses, a susceptibility factor KLT/LH is determined. This factor is a measure of the su... | 07/03/2007 |
| 7215477 | Zoom lens and image display apparatus including the zoom lens Provided is a projection lens, including: a plurality of moving lens units that move on an optical axis for zooming; and a plurality of plastic lenses containing plastic, in which when a focal distance of an i-th positive lens from a predetermined plane side of N po... | 05/08/2007 |
| 7209292 | Projection objective, especially for microlithography, and method for adjusting a projection objective A method of adjusting a projection objective permits the projection objective to be adjusted between an immersion configuration and a dry configuration. The projection objective includes optical elements arranged along an optical axis thereof, which include a first ... | 04/24/2007 |
| 7193793 | Imaging lens An imaging lens includes, in sequence from the object side to the image plane side: a first lens with a convex object side surface and having a positive overall index of refraction; an aperture stop having a predetermined diameter; a second lens with a convex object... | 03/20/2007 |
| 7190528 | Zoom lens and image projection apparatus having the same A zoom lens comprises a plurality of lens units including a first lens unit disposed most adjacent to an enlargement side and having negative refractive power, wherein one or more lens units of the plurality of lens units are moved in the direction of the optical ax... | 03/13/2007 |
| 7184219 | Projection lens system and projector A projection lens system that is suited to a compact, wide-angle lens system. The projection lens system projects projection light from a light modulator onto a screen, wherein the projection lens system is constructed, in order from a screen side thereof, of a firs... | 02/27/2007 |
| 7180676 | Projector A projector, includes: a light source device; an optical modulator arranged on an illumination optical axis of a light beam irradiated by the light source device to modulate the light beam in accordance with image information and form an optical image; a projection ... | 02/20/2007 |
| 7177098 | Image pickup lens An image pickup lens can form an excellent optical image on a compact image pickup element having a large number of pixels. The image pickup lens includes, sequentially from the object side, an optical aperture, a first lens made of glass and having at least a spher... | 02/13/2007 |
| 7175287 | Wide angle projection lens A projection display device is provided. The projection display device may include an image generation device configured to generate an image and a wide angle lens system having an optical axis configured to receive the image and project the image along an optical p... | 02/13/2007 |
| 7150537 | Projection television device and screen A front projection display device is provided including an image-generating source configured to generate an image, a wide angle lens system adapted to receive the image, and a screen. The wide angle lens system may be configured to increase distortion of the image ... | 12/19/2006 |
| 7133084 | Lens systems for projection televisions Projection lens systems for use with cathode ray tube (CRT) projection televisions are provided which have positive first lens units (U1) and negative second lens units (U2) where the negative second lens units are customized in terms of at least one o... | 11/07/2006 |
| 7123420 | Imaging optical system A luminous flux, from one conjugate surface (A), having an opening angle of at least 10° sequentially passes through a first optical system (30) having a luminous flux convergent action in the vicinity of its reference axis and a second optical system (31... | 10/17/2006 |
| 7116467 | Structured fluid compositions for electrophoretically frustrated total internal reflection displays A structured fluid composition comprising: (a) a low refractive index liquid; (b) particles including light absorbing charged particles such as pigments, non-light absorbing uncharged particles such as teflon, sili... | 10/03/2006 |
| 7116498 | Projection optical system and image projection apparatus A projection optical system and an image projection apparatus that are small in size and can achieve projection with a wide angle while a good image forming performance is assured includes a first lens group having a negative refracting power and a second lens group... | 10/03/2006 |
| 7102820 | Flat valley fresnel lens for a display device A Fresnel lens for a display device is provided. The Fresnel lens includes a first sloped surface angled to receive input light, a second sloped surface facing the first sloped surface, and a valley floor linking the first sloped surface to the second sloped surface... | 09/05/2006 |
| 7088509 | Laminate screen for display device A rear projection display device is provided. In an embodiment, the display device includes a laminate screen including a Fresnel lens lamina having a non-planar input surface, a substantially planar output surface and a first index of refraction. The laminate scree... | 08/08/2006 |
| 7080910 | Method and system for a thermal architecture and user adjustable keystone in a display device A method and system for a thermal architecture and user adjustable keystone in a display device is described. The system includes a screen, a lens to project images, and one or more mirrors to reflect the images projected by the lens to the screen. A mirror assembly... | 07/25/2006 |
| 7079304 | Structured fluid compositions for electrophoretically frustrated total internal reflection displays A structured fluid composition comprising: (a) a low refractive index liquid; (b) particles including light absorbing charged particles such as pigments, non-light absorbing uncharged particles such as teflon, sili... | 07/18/2006 |
| 7046339 | Optimized optical lithography illumination source for use during the manufacture of a semiconductor device A method and structure for optimizing an optical lithography illumination source comprises a shaped diffractive optical element (DOE) interposed between the illuminator and a lens during the exposure of a photoresist layer over a semiconductor wafer. The DOE may, in... | 05/16/2006 |
| 7046460 | Image-formation optical system, and imaging system The invention relates to an image-formation optical system that satisfies demands toward high performance and compactness at the same time, and an imaging system incorporating the same. The image-formation optical system comprises, in order from its object side, an ... | 05/16/2006 |
| 7023627 | Lithographic objective having a first lens group including only lenses having a positive refractive power A projection objective includes a first lens group (G1) of positive refractive power, a second lens group (G2) of negative refractive power and at least one further lens group of positive refractive power in which a diaphragm is mounted. The first lens... | 04/04/2006 |
