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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7843646 | Switchable magnification lens and photographic apparatus having the same A switchable magnification lens used to vary the magnification of an image going to be captured by a camera. The switchable magnification lens includes an outer barrel and a switchable magnification unit detachably arranged in the outer barrel and connected to the z... | 11/30/2010 |
| 7808718 | Afocal Galilean attachment lens with high pupil magnification An afocal Galilean attachment lens is disclosed, with the lens comprising, along an optical axis, a first lens group with overall negative optical power and a second lens group with overall positive power. The first and second lens groups are arranged to define a Ga... | 10/05/2010 |
| 7724445 | Bifocal imaging optical system and imaging apparatus A configuration where a first group having a positive refractive power and a positive second group having a positive refractive power are placed sequentially from the object side is basically used. As the first group, a wide-angle first group and a telephoto first g... | 05/25/2010 |
| 7463424 | Wide converter lens and image pickup apparatus equipped with the wide converter lens A compact wide converter lens having a small front-lens diameter. When attached to an object side of a main lens system, the wide converter lens provides reduced degradation of aberrations to achieve high optical performance. The wide converter lens includes a first... | 12/09/2008 |
| 7408718 | Lens array imaging with cross-talk inhibiting optical stop structure An apparatus includes an optical sensor, a lens system, and an optical stop system. The optical sensor includes photocells each of which has a respective photocell active area in a capture plane. The lens system includes lenses each of which is operable to focus lig... | 08/05/2008 |
| 7289272 | Optical system including an anamorphic lens An optical system includes a primary lens group having a central beam path therethrough and including a front lens group and a rear lens group. An anamorphic lens group lies on the central beam path and is positioned between the front lens group and the rear lens gr... | 10/30/2007 |
| 7274515 | Bifocus lens system and a portable machine using the same A bifocus lens system that is particularly suitable for being used in the portable machine, which not only can improve the incident angle but also can ensure miniaturization. The bifocus lens system comprises: a first lens group, a second lens group at wide angle si... | 09/25/2007 |
| 7258452 | Projection optical system and a projection type image display apparatus There is disclosed a projection optical system which is capable of moving a projected image within a predetermined region (effective projection region). The projection optical system, which projects an image of an object surface in the effective projection region of... | 08/21/2007 |
| 7194202 | Waterproof protector device and waterproof protector system using the same A waterproof protector system comprises a body protector which stores a camera body, a first port member to be attached to the body protector, and a second port member to be attached to the first port member. The body protector is formed having a first opening porti... | 03/20/2007 |
| 7170689 | Front converter lens A converter lens includes a front unit and a rear unit disposed on an image side with respect to the front unit. The front unit has positive optical power and includes two positive lens elements. The two positive lens elements are spaced apart. The rear unit has neg... | 01/30/2007 |
| 7158311 | Interchangeable lens system A lens system is provided. The lens system includes a first lens system moveable between a first position removed from an optical axis and a second position on the optical axis. The first lens system includes a first lens element, an aperture stop, and a second lens... | 01/02/2007 |
| 7136226 | Front teleconverter lens system A front teleconverter lens system having superb optical performance with less production of aberration in spite of its compactness. The front teleconverter lens system includes, in order from an object, a first lens group having positive refractive power, and a seco... | 11/14/2006 |
| 7016114 | Diffraction optical device and optical system including same A diffraction optical device includes a first diffraction element and a second diffraction element arranged adjacent to each other. One of the first diffraction element and the second diffraction element has a positive power, and the other has a negative power. The ... | 03/21/2006 |
| 6831730 | Optical magnification adjustment system and projection exposure device An optical magnification adjustment system being capable of minutely correcting magnification. A first lens 1 of plano-convex is installed on the side of an object surface 5, and a second lens 2 of concave-plano is installed on the side of a for... | 12/14/2004 |
| 6738195 | Optical magnification adjustment system and projection exposure device An optical magnification adjustment system being capable of minutely correcting magnification. A first lens 1 of plano-convex is installed on the side of an object surface 5, and a second lens 2 of concave-plano is installed on the side of a for... | 05/18/2004 |
| 6661583 | Close-up attachment lens Provided is a close-up attachment lens suitably applicable to a taking lens body comprising a lens group in charge of a focus function and a lens group in charge of a zoom function completely separate from each other. The attachment lens is mounted on the... | 12/09/2003 |
| 6654179 | Wide converter lens system for both underwater and above-water use A wide converter lens system includes an assembly of two or more specified kinds of lens units and a meniscus concave lens to be attached in front of this assembly. The frame for this assembly is detachably attachable to a watertight underwater housing co... | 11/25/2003 |
| 6583939 | Auxiliary imaging lens and imaging apparatus using the same An auxiliary imaging lens is attachable to the main part of zoom lens on the object side; and is configured such that, when capturing an image for a screen having an aspect ratio of 4:3, an effective imaging area having such a size that the screen having ... | 06/24/2003 |
| 6504655 | Wide converter lens The object of the present invention is to provide a wide converter lens capable of obtaining an angle of view of about 80° or over and having small appearance of distortion. According to one aspect, a wide converter lens for using by attaching to an obje... | 01/07/2003 |
| 6493152 | Wide converter lens An afocal, wide converter lens is provided in order to shorten the focal length of a main lens, thereby shortening the projection distance that is needed to fully illuminate a given screen size when the wide converter lens is attached to the enlarging sid... | 12/10/2002 |
| 6449100 | Teleconverter lens A teleconverter lens is disclosed, for attachment to the enlarging side of a projection lens, wherein aberrations generated by a negative focusing lens group positioned at the enlarging side of the projection lens are not made greater by the teleconverter... | 09/10/2002 |
| 6400515 | Taking optical system, image taking apparatus, and method for converting frame-format in a taking optical system A method of converting a frame-format in a taking optical system comprises steps of arranging a plurality of lens units constituting the taking optical system except for the lens unit disposed at the object-side end or at the image-side end and determinin... | 06/04/2002 |
| 6351336 | Attachment lens for short distance shots An attachment lens for attachment to the object side of a main camera lens in order to enable the taking of short distance shots is disclosed. The attachment lens consists of three lens elements of positive, negative, and positive refractive power, in ord... | 02/26/2002 |
| 6288767 | Imaging optical system An imaging optical system includes a liquid crystal lens including a first body formed of a substantially transparent birefringent liquid crystal member, a second body formed of a substantially transparent birefringent liquid crystal member, and two pairs... | 09/11/2001 |
| 6181482 | Variable ratio anamorphic lens An anamorphic lens attachment to be used in conjunction with a basic lens. The attachment provides a variable anamorphic ratio. The attachment comprises a first lens group having positive refractive power in a first direction, a second lens group having n... | 01/30/2001 |
| 6124981 | Attachment lens having diffraction surface An attachment lens satisfactorily corrects aberrations by using a diffraction surface. The attachment lens is installed on an image surface side of a master lens unit (M) serving as a photographic optical system, and it extends a focal length of the maste... | 09/26/2000 |
| 6104432 | Compact image pickup lens system for a video camera A compact video camera has an image pickup lens system providing a zooming function and a wide angle field of view. The zooming function is performed by a zoom lens, while the wide angle view is achieved via a wide angle converter. The wide angle converte... | 08/15/2000 |
| 6097547 | Front converter lens system using a diffractive surface The invention provides an inexpensive yet lightweight front converter lens system which is improved in terms of performance by use of a diffractive surface. A front converter lens system CL mounted on a subject-side of a master lens system ML to convert i... | 08/01/2000 |
| 6011655 | Eyepiece An eyepiece including a positive first lens element, a negative second lens element, a positive third lens element and a positive fourth lens element is provided. The first, second, third, and fourth lens elements are spaced from one another and arranged ... | 01/04/2000 |
| 6002533 | Close-up attachment lens A close-up attachment lens, for enabling close-up photograph along with a main lens, is arranged to be attached to the object side of said main lens. The close-up attachment lens comprises, in that order from the object side, a positive first lens element... | 12/14/1999 |
| 5801886 | Image magnification apparatus An image magnification apparatus, for use in a video display system that displays an image of an object, comprising a connecting module for connecting the image magnifying apparatus to a lens module of the video display system, and an objective lens syste... | 09/01/1998 |
| 5589976 | Telescope with rear converter and rear conversion lens and telescope A telescope includes a master telescope whose aberration has been independently corrected and which has an objective lens and an ocular lens. A rear conversion lens is provided on the image side of the objective lens of the master telescope and is made of... | 12/31/1996 |
| 5555132 | Wide-conversion lens and a zoom lens with it A wide-conversion lens for attachment to a master lens system consists of a bi-negative first lens in a object side and a bi-positive second lens in a master lens side, and in the second lens its radii of curvature of both surfaces are selected the same.... | 09/10/1996 |
| 5555133 | Objective lens for microscope An objective lens for microscopes has an optical unit removably disposed at the front end of the objective lens. The optical unit includes at least two kinds of optical elements having different optical properties. Thus, the objective lens for microscopes... | 09/10/1996 |
| 5528416 | Compact multiple field-of-view attachment An afocal field of view and focal length converter for an optical lens system includes a cube-shaped frame that is interposed on an optical axis of the lens system. Lenses are mounted in four faces of the frame to provide two reversible afocal pairs and t... | 06/18/1996 |
| 5459615 | Miniature fixed-focal-length lens system A miniature fixed-focal-length lens system includes a lens group which consists of a plurality of lenses and has a positive refracting power and a stop disposed on the object side of the lens group. The lens nearest to the object in the lens group is a me... | 10/17/1995 |
| 5452133 | Variator optical system An afocal optical module simulator (aoms) for use in conjunction with one or two other optical modules to simulate an afocal variator optical system. The aoms is comprised of an optical module having a front and a rear end, and includes a movable negative... | 09/19/1995 |
| 5329400 | Focal length changeable lens A focal length changeable lens system for use with an on-chip micro-lens equipped solid-state imaging device, whose exit pupil is located at a long distance and whose focal length is changeable between a long focal length and a short focal length. The len... | 07/12/1994 |
| 5218475 | Attachment lens system An attachment lens system comprising, in the order from the object side, a first lens unit having a positive refractive power and a second lens unit having a negative refractive power; having a negative refractive power as a whole; and adapted in such a m... | 06/08/1993 |
| 5216546 | Attachment lens system for close-up photography An attachment lens system for close-up photography in use with a master lens system in such a fashion that the attachment lens system is attached to the front of the master lens system, comprising a first lens as a positive component, a second lens whose ... | 06/01/1993 |
