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| Number | Title | Issue Date |
| 7084920 | Image pickup apparatus In an image pickup apparatus comprising an optical finder for optically displaying an object image, an image pickup device for receiving the object image and converting it into an image signal for photographing, an electronic finder for displaying the object image r... | 08/01/2006 |
| 5854657 | Device for preventing entrance of backlight into optical view finder Device for preventing entrance of backlight into an optical view finder for preventing degradation of an image, including a zoom lens part for adjusting a size and angle of an image signal of an objective in planning a picture frame, a mirror shutter part... | 12/29/1998 |
| 5797055 | Focal plane shutter and method for producing same An extremely durable, super-high speed shutter with speeds of 1/8000 second or faster advantageously increases the blade acceptance rate, reduces the cost, prevents abnormalities such as light leaking between the curtains and the like, contributes to the ... | 08/18/1998 |
| 5749014 | Shutter device A shutter device comprises a shutter blade which operates according to an exposure operation, a first blade driving spring for giving an urging force working in a predetermined direction to the shutter blade substantially over an entire operating range of... | 05/05/1998 |
| 5630191 | Shutter device A mechanism wherein the operation state of a shutter is detectable even with a diaphragm plate, without light shading blades being damaged, is disclosed. The mechanism includes a substrate, a cover plate, and a light blocking blade between the substrate a... | 05/13/1997 |
| 5371564 | Shutter device in a camera A camera shutter device having a charging rotation axis mounted to the camera body rather than mounted to the shutter base. A charging force of a shutter charging mechanism is transmitted through a linkage lever rotatably supported by to charging rotation... | 12/06/1994 |
| 5159371 | Shutter for camera A shutter for a camera includes a lever pivotable for operating a shutter, a shutter base plate formed from a synthetic resin, a shaft for pivotally supporting the lever, the shaft and the shutter base plate being formed from a synthetic resin as one unit... | 10/27/1992 |
| 5040008 | Focal-plane shutter A focal-plane shutter for a camera includes two shutter blades each of which comprises two opaque plates. At least one of the two plates has a slit and is held at two points by two arms such that the plates move like a pantograph. The arms are pivotally m... | 08/13/1991 |
| 4977421 | Double light blocking shutter A shutter having leading and trailing blade groups with an operating mechanism comprising a first drive member for the leading blade group, a second drive member for the trailing blade group, an energizing member movably supported to push the second drive... | 12/11/1990 |
| 4963908 | Shutter for camara A shutter for a camera having leading and trailing blade groups movably interposed in between a plurality of plate-shaped members each of which having a shutter aperture, each of the blade groups including a plurality of divided blades, is provided with a... | 10/16/1990 |
| 4954860 | Focal-plane shutter A focal-plane shutter for a camera includes two shutter blades each of which comprises two opaque plates. At least one of the two plates has a slit and is held at two points by two arms such that the plates move like a pantograph. The arms are pivotally m... | 09/04/1990 |
| 4926202 | Shutter for use in camera A camera shutter has a shutter base plate for pivotally supporting blade groups each constituted by a plurality of blades carried by arms and a thick-walled portion formed on the surface of the shutter base plate that carries the blade groups. The thick-w... | 05/15/1990 |
| 4799074 | Camera A camera having a detector for detecting transition from the wind to rewind mode and a control circuit responsive to the output of the detector for controlling a shutter in such a manner that the exposure aperture of the film gate is covered by both leadi... | 01/17/1989 |
| 4797699 | Focal plane shutter A focal plane shutter for a camera comprising two sets of parallel blades positioned between the plane of a lens in the camera and the plane of a film set therein and in a parallel relation thereto. These sets of blades are movable in opposite directions ... | 01/10/1989 |
| 4737808 | Blade type shutter A blade type shutter adapted for use in photographic cameras and so forth comprising: a front curtain assembly having at least one front blade arranged to travel in linked relationship with two front curtain arms; and a rear curtain assembly having at lea... | 04/12/1988 |
| 4714336 | Focal plane shutter for cameras A focal plane shutter for cameras wherein a plurality of shutter blades to open and close an exposure aperture are shared and pivoted by three arms pivoted on a base plate to secure an excellent durability even for a high speed operation. One of the three... | 12/22/1987 |
| 4688916 | Camera with focal plane shutter A camera comprises a housing provided therein with a film chamber and an aperture for exposure which opens in the film chamber, the housing being equipped with a cover member for opening or closing the film chamber, focal plane shutter means provided with... | 08/25/1987 |
| 4664493 | Photographic shutter To eliminate manual cocking operation and to facilitate in making the size of a camera compact, a spring made of a shape memory alloy plastically deformable at normal temperature but restoring a powerful resiliency when heated is associated with the shutt... | 05/12/1987 |
| 4660952 | Blade type shutter In a focal plane shutter of the kind having a plurality of divided blades pivotally arranged to be turnable on driving arms in an overlapped state, the weight of the blades is reduced by making them from very thin material; the blades are reinforced with ... | 04/28/1987 |
| 4657366 | Shutter device for camera A focal plane shutter for camera comprises an opening blade group and a closing blade group, an opening blade-driving member and a closing blade-driving member, an exposure operation means for moving said blade-driving members for exposure operation, a br... | 04/14/1987 |
| 4571045 | Light-intercepting blade for a light control device A light control device includes a planar light-intercepting blade disposed across the optical path of an optical device and driving means for holding the light-intercepting blade and moving the light-intercepting blade in the direction of the surface ther... | 02/18/1986 |
| 4529285 | Light-intercepting blade for a light control device A light intercepting blade for a light control device is constructed with guide members including a pair of wall surfaces and disposed outside the optical path with a plane intersecting the light path being positioned between the wall surfaces; a planar l... | 07/16/1985 |
| 4486084 | Light shield blades for light control device and light control device utilizing said light shield blades A light-shielding blade for use in a light control device, comprises a flat area and a recessed area on each face. The recessed area on one face is positioned substantially corresponding to the flat area on the other face. The light control device is for ... | 12/04/1984 |
| 4426146 | Focal-plane leaf shutter A focal-plane leaf shutter for photographic cameras, comprises an opening group of leaves and a closing group of leaves, each group having a main leaf which forms a parallelogram linkage with a pair of carrier levers, and secondary leaves. The main leaves... | 01/17/1984 |
| 4384778 | Integral, planar electromagnetic camera element/actuator An exposure regulating element for a photographic camera is formed from a one piece sheet of light weight, non-magnetic, electrically conductive metal to provide a light regulating blade, a flexure hinge for urging the blade toward an initial aperture cov... | 05/24/1983 |
| 4316661 | Electromagnetically operated shutter In a slit shutter such as a focal plane shutter of the two blade type, the shutter blades and electrically operated magnetic drive means therefor are arranged on opposite sides of respective rotatable transmission means with respect to the axes thereof an... | 02/23/1982 |
| 4298265 | Light-intercepting device in a camera In a light-intercepting device in a camera including a plurality of flat light-intercepting vanes disposed on a light-intercepting plane crossing an optical path, the light-intercepting vanes comprise a substrate formed of titanium or a titanium alloy, an... | 11/03/1981 |
| 4295726 | Blade type focal plane shutter A blade type focal plane shutter comprising a plurality of auxiliary shutter blades which are pivoted on the side of an exposure aperture and can move between the unfolded position and folded position, a main shutter blade for forming an exposure slit whi... | 10/20/1981 |
| 4220409 | Focal plane shutter In each of the opening group and the closing group of shutter blades, there is a main blade and two auxiliary blades. When developing from a folded condition the blades of each group go from a more overlapped to a less overlapped condition. Although the s... | 09/02/1980 |
| 4191464 | Blade type focal plane shutters The blade-type focal plane shutter formed with a plurality of telescopically operating opening blades movable in front of a film gate. A drive lever for the opening blades is operatively connected to said opening blades and carries a diffusedly reflecting... | 03/04/1980 |
| 4096505 | Focal plane shutter for cameras A camera shutter mechanism for opening and closing a shutter aperture to effect an exposure comprises a group of opening blades movable, when released, from a closed position covering the shutter aperture to an open position uncovering the shutter apertur... | 06/20/1978 |
| 4081810 | Opening and closing device for camera shutter In a camera having an aperture and a shutter of the type having opening blades and closing blades operable sequentially to make an exposure, an opening member for actuating the opening blades is releasably coupled to a driving member which is spring biase... | 03/28/1978 |
| 4054891 | Driving device for a camera shutter In a focal plane camera shutter of the type having opening blades and closing blades which are actuated sequentially to provide an exposure, the opening blades are operated by an operating member which is biased in a direction to move the blades to apertu... | 10/18/1977 |
| 4012752 | Slit shutter for a camera This invention is directed to a slit shutter type of photographic camera which provides one cover system which would uncover the normal camera image window and another cover system following the first in operation after a selected and suitable time delay ... | 03/15/1977 |
| 3999196 | Photographic camera A photographic camera provided with a focal plane shutter having a plurality of vertically-movable shutter blades, in which at least a part of the leading-shutter blade consisting of a plurality of thin plates is positioned, in order to reduce the height ... | 12/21/1976 |
| 3984853 | Focal-plane shutter structure for photographic camera The described invention relates to a focal-plane shutter for a photographic camera. This shutter is a slide system having a plurality of parts which move in timed sequence during exposure. The parts include a plurality of sliders which are displaceable re... | 10/05/1976 |
| 3967290 | Miniature mirror reflex camera A miniature mirror reflex camera having a camera body carrying an objective lens at the front, and having at the rear means for holding a conventional film cassette of a known type made for miniature cameras. Arranged between the lens and the cassette is ... | 06/29/1976 |
