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| Number | Title | Issue Date |
| 7334950 | Quick-change shutter assembly A shutter assembly for an optical system includes a shutter housing that maintains optical alignments with adjoining parts of the optical system and a shutter mechanism that can be removed and replaced within the shutter housing without disturbing the optical alignm... | 02/26/2008 |
| 7104707 | Light quantity adjusting device A device is provided having one or more light quantity controlling members that move into, and out of, an opening portion through which light passes and which is formed by at least a portion of inner diameter sides of a first stator and a second stator, thus control... | 09/12/2006 |
| 6779933 | Light-quantity adjusting apparatus and optical apparatus A light-quantity adjusting apparatus is disclosed, in which a light-blocking member and an optical filter can be driven with a single actuator, and which can be made compact. The light-quantity adjusting apparatus includes a light-blocking member that changes a quan... | 08/24/2004 |
| 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 |
| 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 |
| 6473217 | Diaphragm device The space required in the vicinity of a shutter aperture can be reduced to achieve an overall reduction in size of a device by providing a diaphragm mechanism for covering the shutter aperture formed of a plurality of members cooperating with each other t... | 10/29/2002 |
| 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 |
| 5914750 | Shutter including a capping element movable between light-blocking and non-light-blocking positions A shutter intended for use with a light-sensitive material. The shutter includes a light-blocking disk having a light-passing portion through which light can pass to reach a light-sensitive material. The disk is rotated to locate its light-passing portion... | 06/22/1999 |
| 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 |
| 5543881 | Lens barrier mechanism of optical apparatus An optical apparatus having a lens barrier mechanism includes a first barrier member which is rotatable and a second barrier member which is movable up and down. The lens barrier mechanism changes the state of an aperture from a covered state over to an o... | 08/06/1996 |
| 5541694 | Light shielding blade caulking pin A caulking pin joint for use with a light shielding blade in a shutter or aperture mechanism of a camera. The caulking pin has a disc-shaped head, a circular protrusion depending therefrom, and a hollow-circular segment depending from the circular protrus... | 07/30/1996 |
| 5434714 | Zoom lens barrel A barrier mechanism for a zoom lens assembly which includes a stationary lens barrel and a rotatable cam ring which is supported on the stationary lens barrel for movement in the direction of the optical axis while being rotated, and which includes at lea... | 07/18/1995 |
| 5111036 | Shutter apparatus An apparatus for protecting the image recording media in a tracking camera rom destructive illumination. The apparatus includes a shutter assembly mounted between the lens and the camera and a sensor assembly mounted in juxtaposition with the camera so tha... | 05/05/1992 |
| 4876563 | Motor-driven shutter for camera A motor-driven shutter mechanism is provided with a lens protecting mechanism to protect the lens of a camera. The lens protecting mechanism consists of one or more lens guard members movable back and forth upon operation of the camera's motor-driven focu... | 10/24/1989 |
| 4707099 | Latch mechanism for camera shutter When a toggle-like latch is pivoted to release a shutter opening blade for movement from its cocked position to open the camera shutter, a resiliently flexible member of the latch engages a shutter closing blade to retain the closing blade in its cocked p... | 11/17/1987 |
| 4474464 | Shutter device for photographic printer A shutter device for a photographic printer includes a pair of paddle devices respectively driven by a pair of rotary solenoids. The solenoids are actuated such that one paddle moves to open the optical path to begin an exposure, and the other paddle move... | 10/02/1984 |
| 4205909 | Shutter blades operating device for camera A camera shutter has a set of opening blades and a set of closing blades sequentially driven from cocked positions to released positions to effect an exposure. During cocking of the shutter, the opening and closing blades are driven to their cocked positi... | 06/03/1980 |
| 4110764 | Camera shutter Camera shutter having at least two hinged iris leaves, each leaf having a control lever, a push rod joining the control levers, a magnetic actuator operating on the push rod.... | 08/29/1978 |
| 4096506 | Cover plate for optical elements of a camera A cover plate is provided which is especially suited to an instant picture type camera employing mirror image deflection for picture taking. However, this cover plate is suited to any still camera having a substantially planar contiguously grouped optical... | 06/20/1978 |
| 4063263 | Manually operated shutter attachment A manually operated shutter attachment includes a pair of plate members each having an aperture therethrough secured in spaced parallel relationship with the apertures aligned. A blade member having a body portion and handle portion is pivotably mounted i... | 12/13/1977 |
| 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 |
