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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7400827 | Camera provided with optical finder According to the present invention, light from a taking lens is reflected by a quick return mirror in a lateral direction of a body unit. Then, after passing through a screen, the light is reflected toward an upper side of the body unit by a second mirror except par... | 07/15/2008 |
| 7355154 | Image sensing apparatus with movable light flux splitter and control method thereof An image sensing apparatus has a light flux splitter disposed between a lens that focuses light flux of an object image on an image sensing surface and that image sensing surface and that branches the light flux of the object image out of an image sensing light path... | 04/08/2008 |
| 7347565 | Device for mounting and demounting optical element An optical element mounting and demounting device for bringing an optical element (26) into an optical path of an optical lens system and removing it from the optical path includes a holder frame (28) for holding the optical element (26) that is... | 03/25/2008 |
| 7334949 | Mirror box and electronic still camera A mirror box includes a mirror that is selectively set to one of a reflecting position, which is on an optical path between a photographing lens and an imaging device so that incident light passing through the photographing lens is reflected to a view-finder, and a ... | 02/26/2008 |
| 7259923 | Lens barrel A lens barrel, including, a moving frame (2) to hold a lens (8), a direct-advance ring (4) provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member (6) provide... | 08/21/2007 |
| 7211759 | Switch coupling structure A switch coupling structure includes a cap and a seat that are coupled to form a housing chamber inside to hold switch elements. The cap and seat have a coupling surface. The cap and seat have respectively a first fastening portion and a second fastening portion for... | 05/01/2007 |
| 7203009 | Lens device A lens device in which a first movable lens holding frame and a second movable lens holding frame are moved along an optical axis by rotating a cam cylinder rotatably provided on a lens barrel, an escape channel for escapement of a portion of the second movable lens... | 04/10/2007 |
| 7173660 | Method for displaying an information image on a screen For an image to be displayed on a liquid crystal display, a thinning process is executed to reduce a number of pixels constructing the image. An original image of an information image is produced in accordance with a pixel number of a taken subject image. A low-pass... | 02/06/2007 |
| 7130127 | Terrestrial telescope with digital camera A terrestrial telescope with digital camera has an imaging optical system having a group of objective lenses and an imaging element disposed at a position at which an optical image is formed by the group of objective lenses. An observation optical system is provided... | 10/31/2006 |
| 7072125 | Lens holder and lens-fitted photographic film unit A first lens, a first spacer ring, a second lens, a second spacer ring, and a third lens are disposed along an optical axis and from the subject side in the stated order within a holder main body. A flare stopper in the shape of a ring (a washer) is integrally forme... | 07/04/2006 |
| 7006140 | Digital still camera with shifting focus lens A digital still camera of the present invention has a photographing optical system, a body, an image sensor, a half mirror, a phase difference focus detector. The image sensor is arranged in the body and backward of the photographing optical system along an optical ... | 02/28/2006 |
| 6958779 | Digital camera A digital camera has a half mirror that splits the optical path from a taking lens to the image-sensing device and an optical viewfinder that offers the light reflected from the half mirror as a visible image. Inside the optical viewfinder, a photometric device is d... | 10/25/2005 |
| 6958863 | Image pickup system The invention relates to an image pickup system comprising an electronic view finder suitable for achieving compactness and having a sufficient viewing angle of field and satisfactory optical performance. The image pickup system comprises an image pickup device, an ... | 10/25/2005 |
| 6941065 | Camera interlocks that ensure proper movement of film The camera of this invention has a film cassette compartment, a film spool (13), a film exposing area, and an interlock that prevents moving exposed film from the film cassette. With the camera, a film cassette (2) is loaded into the film cassette comp... | 09/06/2005 |
| 6735388 | Camera having transverse optical encoder A camera has a body having an exposure frame surrounding an exposure opening. The exposure frame has a window. A mask core is mounted in the body. The mask core has an axis of rotation extending transverse to the exposure frame. The mask core has a plurality of sect... | 05/11/2004 |
| 6536960 | Image-sensing apparatus In a digital camera having a half mirror retractable out of the optical path and an optical viewfinder receiving light reflected from the half mirror, the sensitivity of an image-sensing device is set as specified by the user. When a relatively high sensi... | 03/25/2003 |
| 6402396 | Film back exchangeable camera and exchangeable film back A film back exchangeable camera has a camera body and a film back that can be attached to and detached from the camera body. The camera includes: an aperture formed in the film back, through which photographing light flux passes; a film supplying mechanis... | 06/11/2002 |
| 6366740 | Apparatus and method for adapting a 35mm SLR still camera to a 35mm motion picture viewfinder The invention enables users to adapt 35 mm SLR still cameras to function as 35 mm motion picture viewfinders and adapt 35 mm SLR still cameras to create photographs which correspond to what they see through its viewing system. By substituting an accuratel... | 04/02/2002 |
| 6341901 | Photographing lens of a camera having a mask for blocking off noise light which generates in relation to a non-circular lens A photographing lens of a camera comprises a non-circular lens and a light blocking mask. The non-circular lens receives an optical image from an object and forms an image on a photographing medium. The light blocking mask is fixed in front of the non-cir... | 01/29/2002 |
| 6325554 | Camera with electrostatic light valve that functions as image reflecting mirror for viewfinder A camera has an objective lens for forming an image of a subject by focusing rays of light on a film plane, and a mirror for a viewfinder which is movable in the way of the light rays between the objective lens and the film plane to reflect the light rays... | 12/04/2001 |
| 6311022 | Film-back exchangeable camera In a film back exchangeable camera provided with a camera body, an exchangeable film back is removably attached to the camera body. A light shielding member is removably attached to the film back so that the light shielding member prevents a film in the f... | 10/30/2001 |
| 6226460 | Movable filter device A movable filter device comprises a rotary plate for holding an optical filter, a holding plate for holding the rotary plate rotatably at a pivot point, stopper pins, and a torsion coil spring. The torsion coil spring has one end coupled to the holding pl... | 05/01/2001 |
| 6157501 | Lens holding structure A lens holding structure is incorporated in an optical system, such as the photographing optical system of a camera. The lens holding structure has a holding member (i.e., a lens frame) for holding a non-circular lens included among the lenses of the phot... | 12/05/2000 |
| 5980122 | Light blocking apparatus for a camera A camera includes a fixed first mirror for both reflecting a light flux and transmitting the light flux therethrough, a second mirror for reflecting a part of the light flux transmitted through the first mirror toward a particular device, the second mirro... | 11/09/1999 |
| 5708885 | Light intercepting device of a lens shutter type of camera A shutter arrangement for a camera which includes a plurality of shutter blades each having a rotational center and an opening formed proximate to the rotational center, a supporting member which supports each of the plurality of shutter blades to be rota... | 01/13/1998 |
| 5610676 | Camera permitting change-over of photographic image plane frame In a single-lens reflex camera having a quick-return mirror and a built-in mechanism for change-over between different photographic image plane frames, a light blocking member is arranged to be movable into or out of a photo-taking optical path by swingin... | 03/11/1997 |
| 5457511 | Single-lens reflex camera A changeover mirror is disposed behind a taking lens and is movable between a photographic position on the optical path of the taking lens so as to reflect light passing through the taking lens, on the one hand, and a viewfinder position displaced from th... | 10/10/1995 |
| 5353080 | Exposure-equalizing system for photographic images A transparent photochromic medium is placed before the film or film-equivalent of a camera or photographic imaging device such that a light exposure of the medium temporarily darkens it according to the different light values in the image. A subsequent ex... | 10/04/1994 |
| 5247322 | Dual film single lens reflex camera A camera housing having a photographic lens set extending through one side allowing light to enter a camera interior along a light axis, a first film structure, a second film structure and a viewfinder system formed in the remaining sides of the camera ho... | 09/21/1993 |
| 4786929 | Single lens reflex camera A single lens reflex camera having a reflex mirror and a light-blocking plate mounted therein for pivotal movement as a unit between a viewing and a photographing position. A driving mechanism is provided, having an electric motor for causing the pivotal ... | 11/22/1988 |
| 4750012 | Linear reflex shutter for slr cameras A reflex camera having a mirror holding mechanism mounted to a slideable track which moves the mirror linearly in and out of the optical path through the lens. The mechanism is positively driven to a picture taking position by a rotary solenoid. A shutter... | 06/07/1988 |
| 4723140 | Compact folding camera construction A compact, folding camera construction for exposing and processing cassette contained film in which a pair of nestable housings carry major optical components between a folded configuration in which they are located in space between cassette film housings... | 02/02/1988 |
| 4720718 | Reflex camera A reflex camera having a reflex mirror and a light-blocking plate which are pivotally mounted for swinging movement so as to move between a viewing position and a photographing position. The reflex camera has a driving mechanism including an electric moto... | 01/19/1988 |
| 4605295 | Single lens reflex camera A quick mirror return mechanism includes a return spring and a quick return setting member, which are formed, in the region where they abut against each other, so that as the return spring is stressed, the resilient force of the return spring is directed ... | 08/12/1986 |
| 4588275 | Photographic apparatus A photographic camera of the single lens reflex type having a reflex member pivotable between an exposure position and a viewing position there being provided as a part cooperating with the reflex member, a dark slide for covering an exposure plane before... | 05/13/1986 |
| 4544256 | Single lens reflex camera with light measuring device In the single lens reflex camera including a photographic system having an objective lens and an image detector, and a viewfinder optically disposed of the photographic system and comprising a focusing screen having a transparent area surrounded by a ligh... | 10/01/1985 |
| 4509848 | Light measuring device for camera At least one electro-optical light shielding member is disposed close to a reticle of a photographic camera arranged for forming an image of an object to be photographed. The light shielding member is electrically controlled to have the reticle partly lig... | 04/09/1985 |
| 4508439 | Single lens reflex camera Disclosed is a single lens reflex camera which compresses a view finder mirror having a portion for allowing light passage therethrough, a movable support member supporting the mirror having a portion for allowing light passage therethrough, and first and... | 04/02/1985 |
| 4498750 | Light shielding device in single lens reflex camera A reflex mirror for reflecting light from an objective lens to a penta prism is provided with a light-permeable portion for conducting part of the light to behind the reflex mirror and with a shutter plate for shielding this light-permeable portion. When ... | 02/12/1985 |
| 4494844 | Light shading device for a camera A light shading device for a camera in which a soft and elastic light shading curtain has a base part which is fixed on a flat support surface, in the region of the shutter running path. The free end of the shading curtain is brought into elastic contact ... | 01/22/1985 |
