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| Number | Title | Issue Date |
| 8179617 | Photographic lens and image pickup apparatus having the same A photographic lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, a stop, and a third lens unit having a positive refractive power. In the photogr... | 05/15/2012 |
| 8169717 | Large aperture imaging optical systems Large aperture optical systems that are extremely well corrected over a large flat field and over a large spectral range are disclosed. Breathing and aberration variation during focusing are optionally controlled by moving at least two groups of lens elements indepe... | 05/01/2012 |
| 8000035 | Wide-angle lens, optical apparatus, and method for focusing Providing a wide-angle lens having high optical performance, an optical apparatus using thereof, and a method for focusing the wide-angle lens. The lens including, in order from an object, a first lens group G1 having negative refractive power, a second lens ... | 08/16/2011 |
| 7952817 | Projection lens A projection lens includes a first lens group with a negative refractive power, a second lens group with a negative refractive power, and a third lens group with a positive refractive power, wherein the second lens group is disposed between the first lens group and ... | 05/31/2011 |
| 7944625 | Optical system and image pickup apparatus having the same An optical system includes a first lens unit, an aperture stop, and a second lens unit having a positive refractive power. In the optical system, the first lens unit includes at least one positive lens made of a material whose Abbe number (νdGP) and relative partia... | 05/17/2011 |
| 7859770 | Fixed-focus lens A fixed-focus lens including a first lens group and a second lens group is provided. The first lens group is disposed between a magnified side and a reduced side and includes a first lens and a second lens arranged in sequence from the magnified side to the reduced ... | 12/28/2010 |
| 7760444 | Imaging optical system and image pickup apparatus using the same An imaging optical system includes in order from an object side thereof: a front lens unit having a negative refracting power, an aperture stop, and a rear lens unit having a positive refracting power. The front lens unit includes in order from the object side, a fi... | 07/20/2010 |
| 7733581 | Large aperture imaging optical system Large aperture optical systems that are extremely well corrected over a large flat field and over a large spectral range are disclosed. Breathing and aberration variation during focusing are optionally controlled by moving at least two groups of lens elements indepe... | 06/08/2010 |
| 7715117 | Optical system and image pickup apparatus using the same An optical system includes a first lens unit having a negative refractive power and a second lens unit having a positive refractive power. The second lens unit includes a front lens unit, a stop, and a rear lens unit. The front lens unit includes a biconvex positive... | 05/11/2010 |
| 7672065 | Lens system and projector utilizing the same A high-performance lens system includes lens elements of small diameters for projecting enlarged images from light valves (mainly Digital Micromirror Devices (DMDs))for forming images by changing reflecting directions of light. The lens system includes, sequentially... | 03/02/2010 |
| 7623305 | Image capturing lens and imaging apparatus An image capturing lens including: in order from an object side, a first lens group having a negative refractive power; a stop; and a second lens group having a positive refractive power; the first lens group including, in order from the object side, a first lens in... | 11/24/2009 |
| 7545586 | Wide angle lens system having a distorted intermediate image The wide angle lens system described herein allows projection devices (e.g., rear projection display devices) to be more compact than would otherwise be possible. The lens system includes a wide angle lens stage and a relay lens stage. When operating as a projection... | 06/09/2009 |
| 7502179 | Fixed-focus lens A fixed-focus lens including a first lens group, a second lens group and a third lens group, which are arranged in sequence from an object side to an image side, is provided. The first lens group has a negative refractive power and includes three lenses arranged fro... | 03/10/2009 |
| 7502180 | Image-formation optical system and imaging system using the same The invention relates to a compact image-formation optical system that is diminished in a diametrical direction with as few lenses as possible while well adapting to an wide-angle arrangement having a half angle of 90° or greater, and an imaging system incorporatin... | 03/10/2009 |
| 7379252 | Endoscope objective lens system An endoscope objective lens system includes a negative front lens group, a diaphragm, and a positive rear lens group, in this order from the object. The negative front lens group includes one lens element, or a plurality of non-cemented lens elements; and the most o... | 05/27/2008 |
| 7375906 | Wide-angle lens system and image-taking device A wide-angle lens system has, from the object side thereof: a first lens element having a negative optical power and having a meniscus shape convex to the object side; a second lens element having a biconcave shape; a third lens element having a biconvex shape; and ... | 05/20/2008 |
| 7365916 | Aspherical lens and optical instrument using the same An object is to provide an aspherical lens having compactness in dimension, large degree of freedom in design, and good optical performance, with increasing in productivity, and lowering production cost. The aspherical lens constructed by a substrate member A and a ... | 04/29/2008 |
| 7362509 | Zoom lens A zoom lens includes, in sequence from the object side: a first lens group with an overall negative refractive power; and a second lens group with an overall positive refractive power. A zoom factor changes by moving the second lens group. Focal adjustments are made... | 04/22/2008 |
| 7352340 | Display system having a three-dimensional convex display surface A display system has a display surface having a three-dimensional convex shape. A projection system projects an object field onto a continuous image field located on the interior of the display surface the display surface is extensive in its coverage, for example su... | 04/01/2008 |
| 7324293 | Wide-angle lens system A wide-angle lens system includes a negative front lens group and a positive rear lens group, in this order from the object. The negative front lens group includes a negative first sub-lens group and a positive second sub-lens group, in this order from the ob... | 01/29/2008 |
| 7304808 | Wide-angle lens system A wide-angle lens system includes: from the object side, (1) a first lens element formed of glass having both surfaces thereof so formed as to be spherical, having a meniscus shape convex to the object side, and having a negative optical power; (2) a second lens ele... | 12/04/2007 |
| 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 |
| 7286302 | Optical system, image pickup device and digital apparatus A wide angle of view optical system, suitable for monitor cameras such as an in-vehicle camera and a security camera, having a reduced optical entire length and aberration correction for forming an optical image on light-receiving surfaces of an imaging element havi... | 10/23/2007 |
| 7283312 | Fisheye lens unit To provide a technique to constitute a fisheye lens unit with a small number of lenses. A fisheye lens unit uses a predetermined projection method, wherein a variation for the predetermined projection method is not less than the variation for an equidistant projecti... | 10/16/2007 |
| 7280284 | Zoom lens A zoom lens comprises, in order from an object side to an image side, a lens group having negative refracting power, and a lens group having positive refracting power. Zooming is carried out with a change in a space between at least said two lens groups. The lens gr... | 10/09/2007 |
| 7280285 | Projection lens and projection display device using the same A projection lens includes three lens groups, arranged as follows from the magnification side: a first lens group of negative refractive power, a second lens group of positive refractive power, and a third lens group of positive refractive power. The first lens grou... | 10/09/2007 |
| 7248293 | Image-sensing apparatus having a zoom lens system that folds an optical path An image-sensing apparatus has a zoom lens system for forming an optical image of an object with variable magnification, which zoom lens system includes a plurality of lens units and achieves zooming by varying distances between the lens units, and an image sensor f... | 07/24/2007 |
| 7239457 | Wide angle lens system and camera There is provided a wide angle lens system configured to obtain excellent image forming performance even in a half field angle region of 40 degrees to 50 degrees. A wide angle lens system is constituted of a first lens having a negative refractive power, a light pat... | 07/03/2007 |
| 7239456 | Super wide-angle lens system and image-capturing device using the same In order to provide a fast super wide-angle lens system having the f-number of f/2.8 and a wide angle of view of 2ω=100° or more in an imaging area of a digital camera and an image-capturing device equipped with the super wide-angle lens system. The lens system in... | 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 |
| 7230772 | Wide-angle zoom lens system A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, a negative third lens group and a positive fourth lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length... | 06/12/2007 |
| 7227694 | Large aperture wide-angle lens and camera including large aperture wide-angle lens A large aperture wide-angle lens includes first and second lens groups separated by a stop. The first lens group includes more than one lens element and the second lens group includes, in order from the object side, a first lens component having at least one aspheri... | 06/05/2007 |
| 7218455 | Zoom lens and imaging apparatus A zoom lens having at least a first lens group including a reflection member for bending an optical axis fixedly during zooming and having a negative refractive power, a second lens group having a negative refractive power, and a third lens group arranged in the ord... | 05/15/2007 |
| 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 |
| 7209300 | Wide-angle lens system A wide-angle lens system includes a positive front lens group, a diaphragm, and a positive rear lens group. The front lens group includes a negative first-sub-lens group and a positive second-sub-lens group. The negative first-sub-lens group includes a negati... | 04/24/2007 |
| 7180542 | Imaging lens device and digital camera having the imaging lens device Imaging lens device has a zoom lens system and an image sensor. The zoom lens system has a first reflecting surface, a first movable lens unit, an aperture stop, a second reflecting surface, a second movable lens unit. A first reflecting surface bends a first optica... | 02/20/2007 |
| 7180686 | Image pickup unit for endoscope An image pickup unit which consists of an objective optical system and a solid-state image pickup device: the objective optical system being composed of a first negative lens unit comprising a first meniscus lens element having a convex surface on the object side an... | 02/20/2007 |
| 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 |
| 7173776 | Fisheye lens system A fisheye lens system with a half angle-of-view of 90° includes a negative front lens group, a diaphragm, and a positive rear lens group. The negative front lens group includes at least three negative meniscus lens elements each of which has the convex surfa... | 02/06/2007 |
| 7161746 | Fisheye lens An object of the present invention is to provide a fisheye lens, in spite of its compactness, having an angle of view of 180 degrees and a fast f-number of 2.8 with securing sufficient back focal length and suitable for a digital camera. The fisheye lens consists of... | 01/09/2007 |
