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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...
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...
7207681 Projection display device with optical combiner between first lens group and separate second lens groups  
A projection display device for enlarging and projecting an image includes a first lens group on the enlarging end of the projection display device, a plurality of display elements, each...
7203007 Projection exposure machine comprising a projection lens  
A projection exposure machine comprises a projection lens with a lens arrangement and at least one stop. The lens arrangement comprises a group of optical elements which is arranged between the...
7199937 Projection image display apparatus and color correction method for the same  
A holding unit holds a plurality of types of white balance adjustment color data with respect to colors of the plurality of projection surfaces. A projection control unit causes a projection unit...
7195860 Semiconductor manufacturing apparatus and pattern formation method  
A semiconductor manufacturing apparatus includes a liquid supplying section for supplying a liquid onto a stage for holding a wafer on which a resist film is formed; an exposing section for...
7184218 Method and apparatus for increasing quality and resolution of a projected image  
A lens includes mechanical dithering that displaces pixels adjacent to undithered pixels. The dithering, for example, precisely places pixels above, below, and on both sides of the undithered...
7182469 High contrast projection  
A method and system for improving the contrast ratio of a projected image. An asymmetric aperture stop improves the contrast ratio of a projected image. Using slightly offset projection, the...
7177078 Projection type display apparatus  
A projection type display apparatus, wherein a common case can be used for housing an illumination optical system even when a shape of an image display element and an optical path length in a...
7173766 Zoom lens, image magnification projection system and video projector using the zoom lens and rear projector and multi-vision system using the video projector  
The present invention provides a zoom lens that suppresses the generation of unnecessary light and is suitable for a projection lens. The zoom lens is used as a projection lens of a projector in...
7170682 Projection aligner, aberration estimating mask pattern, aberration quantity estimating method, aberration eliminating filter and semiconductor manufacturing method  
A projection aligner of the present invention, in which ultraviolet light emitted from a lamp housing is split by a fly-eye lens into a large number of point light sources which are independent of...
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...
7157844 Cathode ray tube provided with a faceplate having a convex outer surface and a lens assembly attached therein  
In a projection cathode ray tube device in which a projection cathode ray tube and a projection lens assembly are coupled and held by a coupler, superior focus characteristics and high resolution...
7154677 Projection objective for microlithography  
The invention relates to a projection lens comprising a lens assembly that has at least one first narrowing of the group of light beams. A lens with a non-spherical surface is located in front of...
7154585 Projection optical system, exposure apparatus, and device production method  
Provided is a projection optical system for forming an image of a pattern of a first object (R) on a second object (W). The projection optical system is made of an optical material having a...
7154678 Projection objective having adjacently mounted aspheric lens surfaces  
A projection objective has at least five lens groups (G1 to G5) and has several lens surfaces. At least two aspheric lens surfaces are arranged so as to be mutually adjacent. These mutually...
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...
7145729 Foldable projection lenses  
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) by a distance sufficient to accept a...
7142367 Projection lens apparatus and projection type image display apparatus  
A projection type image display apparatus having an image display element outputting an image ray, a projection lens apparatus for performing overhead projection of the image ray from the image...
7133211 Projector with flat light sources  
Optical system designs for projectors using flat light sources are disclosed. These projectors make use of imagers that manipulate the transmission or reflectance of light through electronically...
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...
7130129 Reticle-masking objective with aspherical lenses  
A reticle-masking (REMA) objective for imaging an object plane onto an image plane has a condenser portion, an intermediate portion, and a field lens portion. The three portions together have no...
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...
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...
7102828 Optical element and manufacturing method thereof  
An optical element and a manufacturing method therefor, an exposure apparatus, and a device manufacturing method that can reduce the effect of intrinsic birefringence under high NA conditions....
7075727 Projection lens system for image projection apparatus  
A projection lens system for an image projection apparatus that enhances the image aberration correction rate to achieve high resolution and luminance. The lens system includes a first lens group...
7068436 Projection lens for a microlithographic projection exposure apparatus  
A projection lens (10) for a microlithographic projection exposure apparatus has a first optical element, for example a birefringent lens (L2), that has polarization dependent properties causing...
7054069 Projection lens and image display system  
A projection lens system is comprised of five lens groups. A first lens group forms a negative power lens group, and a second lens group forms a positive power lens group. Third, fourth, and fifth...
7045936 Projection coupler with contrast ribs  
An improved coupler with contrast ribs for use in a projection system. The coupler supports a projection lens in alignment with a projection optical signal generation device (e.g., a Cathode Ray...
7035015 Illumination unit, projecting engine and method for generating illumination light  
It is proposed to provide in an illumination unit (10) a light combining section (15) being adapted for receiving and combining first and second primary illumination light (L11, L12) or a...
7023629 Projection lens unit  
A projection lens unit compensates for thermal expansion and contraction. The unit comprises a coupler at the front surface of a CRT, a lens unit body for projecting an image onto a screen by...
7016126 Optical element holding system in projection optical system  
Disclosed is a simple and compact optical element holding system in a projection optical system which enables correction of astigmatism without causing comatic aberration. The holding system...
7012758 Projection optical system and projecting apparatus provided with same  
A projection optical system includes from the enlargement side a first lens unit, a mirror which is an optical path bending member, a second lens unit, and a third lens unit. The projection...
7012764 Projection lens  
A projection lens, for enlarging and projecting a picture formed on a flat fluorescent plate of a CRT projection tube, includes: a first lens unit of a plus lens, having aspheric surfaces on both...
7009777 Compact projection lenses for use with large format pixelized panels  
Projection lenses for use with pixelized panels (PP) are provided. The projection lenses have first and second lens units (U1,U2), with the first lens unit having a negative or weakly positive...
7009776 Projection optical system and projection apparatus using the same  
An object is to obtain a projection optical system capable of projecting image information onto a screen while maintaining satisfactory optical performance, and projection apparatus using it. An...
7006304 Catadioptric reduction lens  
A catadioptric projection lens configured for imaging a pattern arranged in an object plane (2) onto an image plane (4) while creating a single, real, intermediate image (3) has a catadioptric...
7002753 Color-corrected projection lenses for use with pixelized panels  
Projection lenses for use with pixelized panels (PP) are provided. The projection lenses have first and second lens units (U1,U2), with the first lens unit having a negative power and the second...
6992834 Objective with birefringent lenses  
Objective (1, 601), in particular a projection objective for a microlithography projection apparatus, with first birefringent lenses (L108, L109, L129, L130) and with second birefringent lenses...
6989937 High-aperture projection lens  
A six-element cinema projection lens is described in front of which an aspherized plane-parallel plate is positioned on the screen side. This arrangement permits the cost-effective design of a...
6989936 Variable power optical system  
The optical system disclosed in this specification is a variable power optical system for enlarging and projecting a reduction side object onto an enlargement side image plane, or reducing and...
6987621 Aberration correction optical system  
A projection system for projecting a pattern of a mask onto a substrate. The projection system includes a projection optical system disposed between the mask and the substrate, and an optical...
6980366 Projecting exposure apparatus  
A spatial light modulator has pixel sections for performing spatial light modulation of light. An image-side telecentric image forming optical system forms an image of a two-dimensional pattern of...
6980277 Immersion photolithography system and method using inverted wafer-projection optics interface  
A liquid immersion photolithography system includes an exposure system that exposes a substrate with electromagnetic radiation, and also includes a projection optical system that focuses the...
6961186 Contact printing using a magnified mask image  
Improvements in the fabrication of integrated circuits are driven by the decrease of the size of the features printed on the wafers. Current lithography techniques limits have been extended...
6946199 Optical, additional films and optical elements  
A monolayer or multilayer film has a single layer or multiple layers of silica containing fluorine. An optical element has the forgoing film laid on a surface of a substrate. A concentration of...
6947222 Projection lens and projection image display apparatus  
A projection lens, which has a first group of lenses having a negative power and a second group of lenses having a positive power, sequentially arranged from an enlargement side to a reduction...
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...
6927919 Collimating lens, collimating system, and image displaying apparatus using collimating system  
A collimating lens and a collimating system which condense light emitted from a light source with directivity at a high efficiency and a projection type image displaying apparatus using the same....
6924937 Aberration correcting optical system  
An aberration changing optical system to be used with a projection optical system of a projection exposure apparatus, includes an optical element having at least one of a cylindrical surface and a...