Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7944626 | Wide angle lens module and vehicle vision system A wide angle lens module includes a first lens and a second lens with negative refracting power, a third lens and a fourth lens with positive refracting power, a fifth lens with negative refracting power, a sixth lens with positive refracting power, and a seventh le... | 05/17/2011 |
| 7808723 | Photographic lens system and electronic imaging device using the same A photographic lens system includes a positive lens element, a positive lens element, a negative lens element having a concave surface facing toward the image, a diaphragm, a negative lens element having a concave surface facing toward the object, a positive lens el... | 10/05/2010 |
| 7796348 | Wide angle lens module and vehicle vision system A wide angle lens module includes a first lens and a second lens with negative refracting power, a third lens and a fourth lens with positive refracting power, a fifth lens with negative refracting power, a sixth lens with positive refracting power, and a seventh le... | 09/14/2010 |
| 7411740 | Zoom lens Disclosed is a zoom lens, which includes, in sequence from an object side to an image side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, a fifth lens group, a negative sixth lens group and a po... | 08/12/2008 |
| 7286303 | Macro lens The invention discloses a macro lens that takes a retrofocusing function for the purpose of downsizing. The macro lens employs a floating mechanism to cover a wide photographing range from the equi-magnification to the infinity, and especially, attains a great imagi... | 10/23/2007 |
| 7239360 | Short throw projection system and method A short throw projection system and method for displaying a corrected optical image on a projection screen based on input image data that includes an electronic correction unit, an image projector and a reflection assembly. The electronic correction unit receives th... | 07/03/2007 |
| 7199947 | Miniature digital camera lens Miniature camera lenses (100, 300) include in order an object side (116, 302) to the image side (118, 304) a first double concave lens (102, 306), a lens group including first convergent meniscus lens (104, 318), a first double con... | 04/03/2007 |
| 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 |
| 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 |
| 7126767 | Wide-angle projection lens for front projection display systems A wide-angle projection lens includes a first lens group of negative refractive power, the first lens group having at least one aspheric surface. The projection lens also includes a second lens group of substantially zero refractive power and a third lens group of p... | 10/24/2006 |
| 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 |
| 7102834 | Photographic objective of the modified double gauss type A photographic objective of the modified double gauss type is presented. The object has a forward group that includes three lens elements (L1, L2, L3) and has the refractive power sequence ++−. The objective also includes an aperture and a rea... | 09/05/2006 |
| 7057830 | High-aperture wide angle cinema projection lens A projection lens with a short focal length and high initial aperture is proposed. Such projection lenses are used, for example, in cinema projection. The projection lens is configured such that the sum of the overall length and the back focus (12) is between... | 06/06/2006 |
| 7057804 | Ultraviolet imaging system An ultraviolet imaging system includes at least two negative lens elements, and at least two positive lens elements. The ultraviolet imaging system satisfies the following conditions: −3 | 06/06/2006 |
| 7046450 | Liquid-immersion objective optical system The invention provides a liquid-immersion objective optical system including a first lens group and a second lens group. The first lens group includes a first lens component having positive refractive power, an object side thereof being a flat surface and a convex s... | 05/16/2006 |
| 6989946 | Projection lens An object of the present invention is to suppress an influence due to temperature change and various aberrations. It is a projection lens which projects an image on a surface of a screen (magnified side). A first group I having a negative refractive power and a seco... | 01/24/2006 |
| 6795255 | Projection objective A lens assembly comprising seven lenses. Each lens includes u greater than or equal to about 12.8°, LEP equal to or from about 100 mm to about 400 mm, σRba greater than or equal to about 1°, and σRbi less than or equal to about −14°. The outward ray angle slo... | 09/21/2004 |
| 6549343 | Intermediate telephoto lens system An intermediate telephoto lens system includes a first lens group and a second lens group. The first lens group includes a first lens element, a second lens element, a third lens element, an aperture stop, cemented lens elements constituted by a fourth le... | 04/15/2003 |
| 6493157 | Image-capturing lens An image-capturing lens is formed of front and rear lens groups having negative and positive refractive power, respectively, in order from the object side. The rear lens group is formed of, in relative sequential order from the most object side of the rea... | 12/10/2002 |
| 6437926 | Image capture lens and image capture apparatus An image capture lens and an image capture apparatus in which various kinds of aberrations are corrected and optical performance suitable for capturing images is obtained. Successively from an object side provided are a first lens group including a negati... | 08/20/2002 |
| 6268969 | Image forming optical system having diffractive optical element An optical system includes, in order from an object side to an image side, a first lens unit having a positive refractive power and a second lens unit having a negative refractive power, the second lens unit being moved during focusing, wherein the first ... | 07/31/2001 |
| 6115194 | Projection lens By satisfying certain specified conditions, a projection lens having six lens groups and a low F-number of 1.4 is disclosed wherein a maximum angle between a principal ray and the optical axis on the reducing side of the projection lens is 2.5° or less. ... | 09/05/2000 |
| 5920436 | Large-aperture lens for low-illuminance imaging In a large-aperture lens for low-illuminance imaging, a Gauss type lens configuration is employed, and a negative lens having a predetermined refracting power is inserted in front of the front-side cemented lens, whereby back focus is secured while compac... | 07/06/1999 |
| 5835286 | Standard lens system having a large aperture ratio A standard lens system composed, in order from the object side, of a first lens unit having a positive refractive power, an aperture stop, a second lens unit having a positive refractive power and a third lens unit having a negative refractive power: the ... | 11/10/1998 |
| 5790324 | Wide-angle photographic lens system A compact wide-angle photographic lens system of a retrofocus type includes, from the object side, a first, a sixth, and a seventh meniscus lens group of positive refractive powers, a second and a third meniscus lens group of negative refractive powers, a... | 08/04/1998 |
| 5781278 | Projection optical system and exposure apparatus with the same The present invention relates to a both-side telecentric projection optical system and an exposure apparatus equipped with this projection optical system. In particular, the projection optical system has a structure for quite favorably correcting various ... | 07/14/1998 |
| 5726809 | Camera system and an optical adapter to reduce image format size A rear attachment is provided to permit objective lens systems designated for a certain image format to be used for imaging on a smaller image format. Thus, a 35 mm single lens reflex camera lens can be used to create an image on a smaller format CCD arra... | 03/10/1998 |
| 5684643 | Fast wide-angle lens system A wide-angle fast lens system includes a front lens group having a negative power, a diaphragm and a rear lens group having a positive power. The front lens group consists of a first sub-lens group and a second sub-lens group having a negative power. The ... | 11/04/1997 |
| 5610769 | Internal focusing telephoto lens system An optical system includes, in the following order from the object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, the second lens unit comprising, in the following order from the object s... | 03/11/1997 |
| 5589988 | Retrofocus-type wide angle lens system having a fixed front lens group and a movable rear lens group A wide angle lens system comprises a front lens group and a rear lens group having positive refractive power. The front lens group includes in the order from the object side, a negative meniscus lens component having a convex surface facing the object sid... | 12/31/1996 |
| 5572364 | Projection lens system A projection lens system for projecting an enlarged image onto a display screen front an image appearing on a faceplate of a cathode ray tube utilizes at least six lens groups. The first lens group, from an end closest to the display screen, is in a form ... | 11/05/1996 |
| 5557472 | Fast aspherical lens system A fast lens system is provided which includes a front lens group having a negative power, a diaphragm, and a rear lens group having a positive power, arranged in this order from a side of an object of the lens system. The lens system satisfies the followi... | 09/17/1996 |
| 5477389 | Fast ultra-wide angle lens system A fast ultra-wide angle lens system is provided which includes a front lens group having a negative power, a diaphragm, and a rear lens group having a positive power, arranged in this order from a side of an object to be photographed. The lens system sati... | 12/19/1995 |
| 5434713 | Fisheye lens having a short distance compensating function A fisheye lens comprises sequentially from an object, a first lens group including a negative meniscus lens and a second lens group having positive refracting power. The first and second lens groups move on the optical axis toward the object. The fisheye ... | 07/18/1995 |
| 5404247 | Telecentric and achromatic f-theta scan lens system and method of use An airspaced, diffraction limited, seven element telecentric f-theta lens having a first meniscus lens concave to the incident side; a first bi-concave lens; a second meniscus lens convex to the incident side; a third meniscus lens concave to the incident... | 04/04/1995 |
| 5383059 | Nonvariable transverse magnification focussing method and lens systems An nonvariable transverse magnification focussing method and lens system for maintaining a transverse magnification at a fixed value even when the movement distance of each lens group is quite small by moving the basis of the first lens group and the seco... | 01/17/1995 |
| 5347398 | Optical system for forming an image of a plane on a spherical surface An optical system is adapted to conjugate an object plane with an image spherical dome whose radius is less than its focal length and whose exit dioptric is a spherical dome on which the image spherical dome is substantially superimposed. The optical syst... | 09/13/1994 |
| 5282083 | Afocal lens system An afocal lens assembly which includes a first and second lens group used r testing an infrared detector assembly. The first lens group includes three lens elements and the second lens group includes four lens elements. The output of the lens assembly inc... | 01/25/1994 |
| 5172275 | Apochromatic relay lens systems suitable for use in a high definition telecine apparatus An apocromatic relay system suitable for use in a high definition telecine apparatus comprising two groups of lens components with approximate symmetry about an aperture stop, as in a basic double gauss configuration plus one or two additional lens compon... | 12/15/1992 |
