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8493663 Optical system and optical apparatus having the same  
An optical system includes, in order from an enlargement conjugate side to a reduction conjugate side via a largest air gap, a front unit having a negative power, and a rear unit having positive...
8451550 Projection lens  
The projection lens comprises: the first of the components of negative power, facing with its concave surface to the object and cemented of negative and positive menisci, the second component...
8441736 Lens for projection and projection-type display apparatus  
A lens for projection substantially consists of a negative first-lens having a concave surface facing the reduction side, a positive second-lens having a convex surface facing the magnification...
8422140 Fixed focal length lens  
A fixed focal length lens including a first lens group, a second lens group, and a third lens group arranged in sequence from a magnified side towards a reduced side is provided. The first lens...
8416502 Zoom lens  
A zoom lens includes, in order from an enlargement side to a reduction side, a first lens unit having a positive refractive power, which is stationary for variation of magnification, a second lens...
8408717 Projection type image display apparatus  
A projection type image display apparatus includes a first lens group including a plural number of lenses being disposed in a direction of propagation light with respect to an image display...
8403504 Projection type display apparatus  
In a projection type display apparatus for enabling to display an image, by projecting an image on an image display element(s), enlargedly, upon a nearly horizontal surface, such as, a table, a...
8405913 Anamorphic projection optical system  
An anamorphic projection optical system is disclosed that takes in a relatively low intensity two-dimensional light field, and anamorphically images and concentrates the light field to generate a...
8395846 Lens system and display device  
There is provided a lens system (10) that projects projected light onto a screen (6) and includes, in order from the screen (6) side thereof, a first lens (L11) that is a meniscus-type lens with...
8390784 Catadioptric projection objective with pupil mirror, projection exposure apparatus and projection exposure method  
In certain aspects, catadioptric projection objectives for imaging a pattern from an object field arranged in an object surface of the projection objective onto an image field arranged in an image...
8385001 Zoom projection lens system  
A zoom projection lens system, in order from the magnification side to the minification side thereof, includes a first lens group with negative refraction power, a second lens group with positive...
8363327 Projection lens  
A projection lens includes a first lens group, a second lens group, and a third lens group. The first lens group is composed of a first lens. The first lens has a concave surface and a convex...
8345354 Lens for projection and projection-type display apparatus  
A negative first lens having a concave surface facing the reduction side of a lens for projection, a positive second lens having a convex surface facing the magnification side of the lens for...
8325421 Zoom projection lens  
A zoom projection lens includes, in the order from the magnification side to the minification side thereof, a first lens group with negative refraction power, a second lens group with positive...
8320048 Projection lens and projection-type display apparatus using the lens  
A projection lens includes a first lens having at least an aspheric surface, a second lens having a concave surface facing the reduction side of the projection lens, and having negative refractive...
8313199 Projection display system including lens group and reflecting mirror  
A projection display system comprising a projection display unit including a light source, an image display element, a lighting optical system irradiating a beam of light on the image display...
8287129 Low thermal stress birefringence imaging system  
An imaging system having reduced susceptibility to thermally induced stress birefringence, comprising; a relay lens, which images the object plane onto an intermediate image plane; a projection...
8284493 Projection lens unit for pico-projector  
There is provided a projection lens unit for a pico-projector which comprises a lens array, a color composition prism, a cover glass and an image panel, the projection lens unit characterized in...
8284462 Image reading device and image forming apparatus  
Disclosed is an image reading device configured to read information of an object, including an imaging optical system configured to image an image of an object and an image-capturing device...
8279527 Wide-angle projection optical system  
A wide-angle projection optical system includes a first lens set with positive power, an aperture stop, a second lens set with positive power, a third lens set with negative power, and a negative...
8270074 Magnified-projection optical system and digital type planetarium device  
Provided is a magnified-projection optical system, which can retain a considerably long back focus although a focal length is short and which has a small chromatic aberration. The optical system...
RE43540 Optical pickup, optical disc drive device, and optical information device  
A small optical pickup of wide spherical aberration correction range includes a rising mirror for perpendicularly deflecting a light beam and guiding the light beam to an objective lens; a...
8228611 Lens module  
A lens module has a magnified side and a reduced side having an imaging surface. The lens module includes a first, a second, and a third lens groups having positive refractive powers respectively....
8223435 Zoom lens for projection and projection-type display device  
In a zoom lens for projection, a lens group arranged farthest to the reduction side is fixed when the magnification of the zoom lens is changed, and is composed of a negative aspheric lens made of...
8213089 Projecting type hyper-lens and method of manufacturing the same  
Disclosed are a projecting type hyper-lens and a method of manufacturing the same. The projecting type hyper-lens includes a main lens layer and a substrate layer. A front surface of the main lens...
8203710 Compact wide field fast hyperspectral imager  
A spectrometer having substantially increased spectral and spatial fields.
8203792 Projection lens  
A projection lens comprises, from a long conjugate side to a short conjugate side, a first lens unit with positive optical power, a second lens unit with negative optical power, and a third lens...
8189264 Projection optical system and image display device  
A projection optical system, in which a plurality of light flux emitted from one conjugate plane enters another conjugate plane and an image formed on the one conjugate plane is projected on the...
8182097 Projection type image display apparatus  
A projection type image display apparatus includes an image display element, a projection unit including a first lens group and a second lens group formed with a plural number of lenses, a...
8179606 Zoom lens for projection and projection-type display device  
A zoom lens for projection includes negative first group G1, positive second group G2, positive third group G3, negative fourth group G4, positive fifth group G5, and positive sixth group G6,...
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...
8174771 Lens blank and lens elements as well as method for their production  
A method for manufacturing a preferably asymmetrical lens element (5a) from a tempered blank (1) is characterized by: producing the lens element (5a) from a first partial volume (1a) of the...
8169708 Projecting optical unit and projecting type image display apparatus therewith  
A projection image display device is disclosed in which a trapezoidal distortion and/or aberration are restrained when an image is enlarged and projected obliquely onto a screen. An image...
8169694 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...
8144401 Zoom lens  
A zoom lens includes a first lens group, a second lens group, a third lens group, and a fourth lens group. The first lens group including three lenses is disposed between a magnified side and an...
8139282 Display system  
A display system is based on a linear array phase modulator and a phase edge discriminator optical system.
8128238 Projection optical system and image displaying apparatus  
Disclosed is a projection optical system including a projection surface configured such that an image conjugate to an object is projected, plural optical elements having a refractive power, and a...
8116010 Projection variable focus lens and projection display device  
A projection variable focus lens includes seven lenses. The seven lenses include first to seventh lenses in order from a magnification side. The first and second lenses are provided closest to the...
8094379 Optical arrangement of autofocus elements for use with immersion lithography  
A lithographic projection apparatus includes an optical element through which a substrate is exposed with an exposure beam. A space between the optical element and the substrate is filled with...
8094380 Projection objective and projection exposure apparatus with negative back focus of the entry pupil  
The disclosure concerns a projection objective, which can include an object plane in which an object field is formed, an entry pupil, a mirrored entry pupil (RE) in a mirrored entry pupil plane...
8077401 Catadioptric imaging system  
A catadioptric imaging system combines a rectifying mirror, a lens system and subsequent image processing. This approach can produce a small form factor desktop document imaging system capable of...
8072687 Projection display device for multimedia and wall display systems  
A front projection display device includes an optical engine including an illumination system, an imaging system, and projection optics. The projection optics include a first lens group of...
8054557 Lithography projection objective, and a method for correcting image defects of the same  
Projection objectives, as well as related components, systems and methods, are disclosed. In general, a projection objective is configured to image radiation from an object plane to an image...
8054556 Lens  
A lens adapted to image a first image plane at a reduced side onto a magnified side is provided. The lens has an optical axis. The lens includes a lens group and a concave reflective mirror. The...
8049973 Projection objective and method for optimizing a system aperture stop of a projection objective  
In certain aspects, the disclosure relates to a projection objective, in particular for a microlithography exposure apparatus, serving to project an image of an object field in an object plane...
8035899 Lens assembly  
A lens assembly includes a platform having an incident surface and a projection surface on opposite surfaces thereof. Wire holes are formed to the bottom side along a longer axis of the incident...
8035603 Illumination system and liquid crystal display  
An illumination system capable of varying the light emission intensity of illumination light while maintaining the color balance of the illumination light is provided. An additive process...
8020999 Projection type image display apparatus  
A projection type image display apparatus includes an image display element, and a projection optical unit, which is configured to project an image displayed on the image display element,...
8018657 Optical arrangement of autofocus elements for use with immersion lithography  
A lithographic projection apparatus includes an optical element through which a substrate is exposed with an exposure beam. A space between the optical element and the substrate is filled with...
8014075 Projection type image display device  
A projection type image display device comprising: a projection optical system having a first refracting optical section having a plurality of lenses, a reflecting optical section having at least...