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| Number | Title | Issue Date |
| 7572075 | Shutter apparatus There is provided a shutter apparatus including a substrate having a shutter opening and at lease two sectors that are supported by spindles swingably and that open and close the shutter opening, and a spindle of one sector of the at lease two sectors is located in ... | 08/11/2009 |
| 7336894 | Electronic endoscope system, lighting device for electronic endoscope system, and light controller for electronic endoscope system A lighting device for an electronic endoscope system, includes a light source; a set of rotary shutters having at least two rotary shutters, having a rotational axis parallel to an optical axis of the light source, the rotary shutters alternately intercepting incide... | 02/26/2008 |
| 7290947 | Light controller and image pickup device including the same A light controller includes a substrate having an optical path opening, a blade unit with a blade mounted on the substrate for opening and closing the optical path opening, a driver unit for driving the blade, and a stopper unit for restricting a movement of the bla... | 11/06/2007 |
| 7213983 | Sector drive apparatus for use in optical apparatus A sector drive apparatus for use in an optical apparatus, the sector drive apparatus includes a sector having a first engagement opening engaged with an operation member that reciprocates in a given range and a second engagement opening engaged with a spindle fixed ... | 05/08/2007 |
| 7178999 | Shutter-opening/closing and shutter-flash synchronization driver for dual-blade shutter in camera A flash camera has a single-piece shutter-opening/closing and shutter-flash synchronization driver that translates in one direction to pivot a pair of shutter blades away from one another and simultaneously push a movable switch contact of a normally open shutter-fl... | 02/20/2007 |
| 7163344 | Light quantity adjusting apparatus and image-pickup apparatus A light quantity adjusting apparatus which comprises a light-shielding member and a driving unit which drives the opening/closing of the light-shielding member is disclosed. Herein, the light-shielding member is provided with a reinforcement member attached to a par... | 01/16/2007 |
| 7156565 | Driver for opening and closing dual-blade shutter adapted to be reset without re-opening shutter In a camera, a dual-blade shutter has a pair of shutter blades supported for opening and closing movement to uncover and re-cover an exposure aperture, and a shutter driver that projects into respective overlapping slots in the shutter blades and is supported for sh... | 01/02/2007 |
| 6935793 | Manufacturing method of light shielding blade material A light shielding blade material is provided for an optical apparatus and has at least three prepreg sheets each being comprised of an epoxy resin of a thermosetting type as a matrix resin and containing a fiber drawn in an alignment direction within the matrix resi... | 08/30/2005 |
| 6799906 | Light intercepting member driving mechanism A light intercepting member driving mechanism includes light intercepting members which are each rotatable about a rotational axis parallel with an optical axis to open and close a photographing aperture; a drive ring which engages with the light intercepting member... | 10/05/2004 |
| 6796729 | Shutter for camera A shutter for a camera capable of opening a shutter sector in a reduced period of time includes a shutter opening formed in a shutter plate, shutter sectors for opening and closing the shutter opening, a drive lever having a drive pin for operating the shutter secto... | 09/28/2004 |
| 6767145 | Lens shutter for cameras A lens shutter for cameras includes two base plates in which a blade chamber is provided between them and their apertures are superposed to provide a circular exposure aperture, at least one shutter blade located in the blade chamber to perform the opening and closi... | 07/27/2004 |
| 6752542 | Lens shutter mechanism A lens shutter mechanism includes a support frame having a photographing aperture; at least three shutter sectors which open and close the photographing aperture via rotating axes which extend parallel to the optical axis; and at least three diaphragm sectors which ... | 06/22/2004 |
| 6733193 | Shutter device for camera A shutter device has a front blade which is biased by a spring to a closed position for closing an exposure aperture, and a rear blade biased by a spring to an open position for opening the exposure aperture. A shutter drive lever kicks the front blade and the rear ... | 05/11/2004 |
| 6702484 | Shutter for camera A camera shutter has a base plate provided with a shutter opening. Sectors are mounted on the base plate to undergo movement to open and close the shutter opening. A driving lever has a driving pin that extends through through-holes in the sectors for ope... | 03/09/2004 |
| 6655859 | Shutter device of camera A shutter device loaded in a fixed focus camera for making soft-focus photograph includes a swingable shutter drive member and two shutter blades for opening and closing a shutter opening. When the shutter drive member swings in response to photographing ... | 12/02/2003 |
| 6176627 | Method of controlling exposure of camera and diaphragm driving device for performing same A diaphragm driving device for a camera with a single type sector includes a shutter base, a driver installed on the shutter base, and a diaphragm ring rotatably placed on the shutter base with the same center and connected to the driving source to receiv... | 01/23/2001 |
| 6099171 | Lens-shutter device A lens-shutter device of the present invention includes main blades and sub blades which can rotate in the opening and closing directions within an inner space formed by a case and a case cover. When the shutter is closed, protrusions of the case cover di... | 08/08/2000 |
| 6089760 | Shutter device, and apparatus having the same A shutter device includes shutter blades, a motor which drives the shutter blades, diaphragm blades which are driven by the motor to perform opening and closing operations, and a transmission mechanism which transmits a driving force of the motor to the s... | 07/18/2000 |
| 6027260 | Camera shutter and driving device having piezoelectric element for use therewith A camera shutter having a shutter aperture, shutter blades, and a driving device for driving the shutter blades to open and close the shutter aperture. The driving device includes a pair of lever members spaced apart and confronting each other across the ... | 02/22/2000 |
| 5953550 | Shutter device of camera A shutter device includes first and second light blocking members arranged to be movable to vary the amounts of opening. First and second motors are arranged to drive respectively the first and second light blocking members, and a control circuit is arran... | 09/14/1999 |
| 5926663 | Rotation driving device and optical apparatus having the same A rotation driving device comprises a first fixed member having an aperture, a second fixed member having an aperture, the second fixed member being fixed with respect to the first fixed member, a ring-like rotary member, the rotary member being fitted in... | 07/20/1999 |
| 5724625 | Belt-driven shutters A belt-driven shutter mechanism includes a shutter frame (20, 22) with an aperture (21), a plurality of hubs (30) rotatably positioned around the aperture, a corresponding plurality of shutter blades (14), one blade being supported by each hub, and a belt... | 03/03/1998 |
| 5546149 | Focal plane shutter A focal plane shutter for a camera comprises opening and closing blade units operable to open and close a shutter opening of the camera. Each blade unit has a leading blade and trailing blades in superposed relation to the leading blade. The leading blade... | 08/13/1996 |
| 5164766 | Shutter device A shutter for an objective lens particularly for a photoprinter or the like in which the objective lens must be frequently opened and shut. The shutter includes an arm swingably driven by an actuater and provided at a forward end with a pair of shutter bl... | 11/17/1992 |
| 4881093 | Electromagnetic shutter apparatus An electromagnetically operated shutter assembly for a camera includes permanent magnets which are affixed to shutter blades. An electromagnetic field is generated by a number of armatures which interact with the permanent magnets to cause the shutter bla... | 11/14/1989 |
| 4851870 | Shutter apparatus for camera The disclosure relates a piezoelectric element-drive type shutter apparatus for camera. The shutter apparatus includes a main piezoelectric element having a free end which is able to move between a closed position and an opening position to drive shutter ... | 07/25/1989 |
| 4685787 | Camera The improved camera has a film chamber separable and disposable from the exposure chamber of a camera, with a self contained means for processing material for a diffusion transfer-reversal photographic system, with the material comprising a film negative,... | 08/11/1987 |
| 4497553 | Shutter mechanism Opening and closing blades of a shutter are actuated substantially simultaneously with flash firing means igniting a chemical flash lamp. However, initial opening of the shutter is delayed after flash ignition to synchronize full opening of the shutter wi... | 02/05/1985 |
| 4326787 | Magnetized shutter blades A camera shutter having a plurality of shutter blades consisting of thin plastic plates operable by means of a comparatively small driving power, so designed that in order to avoid the formation of slits at the overlapped portions of the shutter blades du... | 04/27/1982 |
| 4220408 | Shutter release mechanism A shutter release mechanism for a large camera designed to reduce a force required for actuation of the shutter thereby minimizing the possibility of camera shake during the shutter release operation. The mechanism is thus particularly useful for the bulb... | 09/02/1980 |
| 4033693 | Light interrupter An optical apparatus in which a beam of light is caused to travel along a predetermined direction is provided with a light interrupter for interrupting the beam. The light interrupter includes a light-interrupting component, such as a shutter blade or col... | 07/05/1977 |
| 4003067 | Automatic photographic shutter control apparatus Camera exposure control apparatus utilizing an electronic timing circuit connected to an electromagnet for controlling, through a drive member, the movement of a shutter which opens and closes to establish an exposure interval. A latch, actuated by moveme... | 01/11/1977 |
| 3982256 | Rotary shutter blade mechanism for cameras Rotary shutter blade mechanism includes at least a shutter blade which rotates always in one direction. The driving energy of the shutter blade is recovered by a driving spring in the course of deceleration of the blade. An auxiliary actuating means is ad... | 09/21/1976 |
