Bizarre Patents
A gun that fires a missile, powered by gas "discharged by the operator of the toy."
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 |
| 7933078 | Super wide angle optical system There is provided a super wide angle optical system including, arranged about an optical axis: a first lens having a negative refractive power and having a meniscus shape with a convex object-side surface; a second lens having a negative refractive power and having ... | 04/26/2011 |
| 7768719 | Super wide angle optical system A super wide angle optical system including: a first lens group including one or more of irrotational symmetric lens surfaces disposed sequentially from an object side and having, overall, a negative refractive power; an aperture stop for intercepting unnecessary li... | 08/03/2010 |
| 7580205 | Imaging lens and imaging device The imaging lens is provided and includes: in order from the object side, a negative first lens whose concave surface is directed toward the image side; a second lens of a planoconcave lens whose flat surface is directed toward the object side or a biconcave lens wh... | 08/25/2009 |
| 7403339 | 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... | 07/22/2008 |
| 7298561 | Optical device A front group is formed of a negative first lens as a meniscus lens which is convex at the object side and a negative second lens, and a rear group is formed of a biconvex positive third lens, an aperture stop, a negative fourth lens and a biconvex positive fifth le... | 11/20/2007 |
| 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 |
| 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 |
| 6999241 | Zoom lens, and video camera and digital still camera using the zoom lens A zoom lens, having a camera shake correction function, that is capable of preventing degradation of chromatic aberration while correcting camera shake, and can be small, light-weight and power-saving, is provided. The zoom lens is composed of four groups of lenses ... | 02/14/2006 |
| 6930833 | Diffractive optical element, and optical system and optical apparatus provide with the same A layered diffractive optical element is disclosed, with which a high diffraction efficiency is attained over a broad region of used wavelengths, and with which diffraction light of unnecessary diffraction orders can be suppressed. A diffractive optical element of t... | 08/16/2005 |
| 6801373 | Projection lens A lens assembly comprising nine 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, α Rba greater than or equal to about 1°, and α Rbi less than or equal to about −14°. The outward ray angle ti... | 10/05/2004 |
| 6476974 | Projection lenses for use with reflective pixelized panels Projection lenses (13) for use with pixelized panels (PP) are provided. The projection lenses have a negative first unit (U1) which has at least one aspheric surface and a positive second unit (U2) which has three subunits (US1, US2,... | 11/05/2002 |
| 5831773 | Zoom lens A zoom lens system of compact size having a small number of lenses and a large field area is provided, comprising, in the following order from the object side, a first lens group G1 with a negative refractive power and a second lens group G2 with a positi... | 11/03/1998 |
| 5715098 | Lens system for a head separated type charge coupled device camera Disclosed is a telephoto-type lens system of a head separated charge coupled device (CCD) camera, which includes a first lens group having a positive focal length, a second lens group having a negative focal length, and a third lens group. The first lens ... | 02/03/1998 |
| 5579169 | Underwater wide angle lens An underwater wide angle lens is provided, in succession from the object side, with a fore group comprising a first lens group having negative refractive power, a second lens group having negative refractive power, a third lens group having negative refra... | 11/26/1996 |
| 5502592 | Wide-aperture infrared lenses with hyper-hemispherical fields of view Design forms are disclosed for infrared imaging systems that can operate at hyper-hemispherical fields of view (e.g., up to 270°) and at wide relative apertures (e.g., up to f/0.7) to produce images having low distortion--typically no more than 20% great... | 03/26/1996 |
| 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 |
