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| Number | Title | Issue Date |
| 8025449 | Image pickup apparatus An image pickup apparatus includes: a shutter device; an image pickup element adapted to sequentially acquire time-series images regarding object images passing through an exposure opening of the shutter device; and control section configured to control operation of... | 09/27/2011 |
| 7347556 | Systems and methods for generating stereo images In one embodiment, a system for generating stereo images includes a front display adapted to project a polarized first image along a viewing axis, a back display adapted to project a polarized second image along the viewing axis and through the front display, and a ... | 03/25/2008 |
| 7259492 | Rotor axial activation modulation of electric machinery due to reverse torque The invention involves installation of a helical nut structure, or a helical nut and ball or roller bearing structure, between an electric machinery transmission shaft and a driven transmission element. Depending on the torque between the electric machinery rotor, a... | 08/21/2007 |
| 6074106 | Camera with blocking device to prevent accidental shutter opening due to mechanical shock such as when camera jarred or drop A camera comprising an aperture through which ambient light is passed to cause a film exposure, a shutter blade pivotable open to uncover the aperture to permit ambient light to pass through the aperture and pivotable closed to re-cover the aperture and s... | 06/13/2000 |
| 6071019 | Shutter device In a shutter device having a first driving lever which engages a shutter blade and which is given an urging force by a first spring and a second driving lever which is given an urging force by a second spring and which pushes the first driving lever from ... | 06/06/2000 |
| 5239325 | Shutter having overcharge release buffer A shutter comprises a shutter driving member arranged to be movably supported, an electromagnet which can be switched to an attracting state and an unattracting state, the electromagnet including a yoke and a coil, an armature arranged to move in a direct... | 08/24/1993 |
| 4577946 | Electromagnetic release device for single-lens reflex camera An electromagnetic release device for a single-lens reflex camera which maintains an armature engaged with an electromagnet used to effect shutter release for a maximum period of time to prevent accumulation of dust between the armature and the pole face ... | 03/25/1986 |
| 4529284 | Electromagnetic release device In the disclosed camera an electromagnetic device serves to actuate a shutter release mechanism, and a drive is arranged repeatedly to drive the electromagnetic device following a shutter release signal to permit sequential control of a plurality of actio... | 07/16/1985 |
| 4527888 | Exposure control system for photographic camera apparatus An exposure control system for a photographic camera apparatus includes a single latch mechanism for latching a shutter blade mechanism of the type which is resiliently biased to move toward its scene light admitting position from its scene light blocking... | 07/09/1985 |
| 4505563 | Electronic shutter for still cameras An electronic shutter mechanism for a still camera comprises a shutter blade, preferably carrying a solenoid armature, urged by a first spring into an initial lens aperture closing position. An initially latched actuating member for moving the shutter bla... | 03/19/1985 |
| 4500186 | Shutter control device for camera A mechanically controlled shutter with a latch for holding the closing curtain in a charged position arranged upon running off of the opening curtain to start operation which then terminates at running off of the closing curtain to control the shutter tim... | 02/19/1985 |
| 4411506 | Photographic camera In a still camera of the 110-format cassette type, an electric motor is provided for winding on the film and thereby priming the shutter by means of a mechanism which engages a perforation in the film as it passes and moves a shutter priming member. A swi... | 10/25/1983 |
| 4403844 | Malfunction preventing device for camera A camera having an electromagnetically operated latch member is provided with a prohibiting member for prohibiting the latch member from being accidentally released before actuation of a camera release, and a control member arranged upon release of the la... | 09/13/1983 |
| 4396267 | Electromagnetic driving device for a camera An electromagnetic driving device for a camera having a first state for performing a focus adjusting operation of the objective lens by detecting the object distance which is followed after the termination of this focus adjusting operation, by a second st... | 08/02/1983 |
| 4360257 | Resetting apparatus for single lens reflex photographic camera In a single lens reflex photographic camera including a shutter release and a diaphragm, a mirror is movable between a first position for view finding and a second position for film exposure. The mirror is placed in the second position and the diaphragm i... | 11/23/1982 |
| 4349261 | Electromagnetic release device for single lens reflex camera An electromagnetic release device for a single lens reflex camera in which the force urging a release lever into abutment with a locking lever is released upon completion of a photographing operation. A rotatably mounted release lever is coupled through a... | 09/14/1982 |
| 4332452 | Electric shutter for camera An electric shutter for camera is operable selectively with manual control mode in which the shutter time is set manually or with automatic exposure control mode in which a proper shutter time is set automatically. The preciseness of shutter time is impro... | 06/01/1982 |
| 4313660 | Release device for a camera In a camera having a shutter device which is capable of controlling the movement of a forward shutter curtain and/or a rearward shutter curtain by electromagnetic means operatively associated with the depression of a shutter button and which is capable of... | 02/02/1982 |
| 4306797 | Electromagnetically driven shutter A focal plane shutter mechanism for a single lens reflex camera has its shutter blades driven by an electromagnetic driving source, with setting of shutter blades to their running start positions being mechanically effected in association with mirror driv... | 12/22/1981 |
| 4298263 | Electromagnetic release device in a camera An electromagnetic release device in a camera having a power source for charging a capacitor, and an electromagnet for release connected between the terminals of the capacitor includes switch means for selectively connecting the capacitor to the power sou... | 11/03/1981 |
| 4286855 | Electromagnetic releasing device In an electromagnetic releasing device for exciting a release magnet for a predetermined time after depression of a release button to thereby elect shutter release, there is provided a circuit which generates, in response to the depression of the release ... | 09/01/1981 |
| 4287549 | Circuit for charging a release magnet energizing capacitor in a camera A capacitor charging circuit in a camera has switch means series-connected between a DC power source and a release magnet energizing capacitor. The switch means comprises a parallel connection of an emitter-grounded transistor for a first switch with the ... | 09/01/1981 |
| 4274727 | Fail-safe system for the electronic shutter of a camera This invention relates to an electronic shutter of a camera provided with a fail-safe system. An electromagnet is connected to the output of an electronic delay circuit. An armature lever moves in the direction to separate from the electromagnet to effect... | 06/23/1981 |
| 4222652 | Electric shutter for cameras An electric shutter for cameras wherein a shutter closing motion can be started by a manual operation from outside the camera body even when the automatic closing motion of the shutter can be no longer made due to the consumption of the current source bat... | 09/16/1980 |
| 4215925 | Photographic curtain-type shutter with electromagnetic actuation control A focal plane shutter adapted for use in a single lens reflex camera and having front and rear curtains with respective charge control gears to be operated in engagement with each other during the winding process. At the terminal end of one cycle of windi... | 08/05/1980 |
| 4211480 | Electromagnetic shutter controlling device for camera An electromagnetic shutter controlling device releases the shutter to start exposure when the device is energized and completes exposure when the device is deenergized. The electromagnetic shutter controlling device is constituted of a shutter blade for o... | 07/08/1980 |
| 4210395 | Electronic programmed shutter An electronic programmed shutter has a sector which is also used as an aperture vane, a sector opening and closing lever normally biased in the sector closing direction, a driving member which is moved in a linear direction by a release operation of the s... | 07/01/1980 |
| 4160983 | Electromagnetic release mechanism for photographic cameras A release mechanism for initiating a camera operation by means of an electromagnetic device which includes a permanent magnet for retaining a release member in an inoperative position, and a solenoid for, upon energization thereof, counterbalancing the ma... | 07/10/1979 |
| 4132474 | Electromagnetic release device for use in cameras A single lens reflex camera includes an electromagnetic release device in which a locking mechanism including an armature is moved to an inoperative position under a spring force to release the locking of a drive member when a solenoid generates a magneti... | 01/02/1979 |
| 4129371 | Electromagnet controlled scanning shutter blade arrangement A "scanning type" photographic shutter blade mechanism is manually actuated to open, thereby commencing a photographic exposure cycle, by a resilient opening drive element. The "scanning type" shutter blade mechanism is thereafter closed to terminate the ... | 12/12/1978 |
| 4127326 | Electric shutter An electric shutter of a program type provided with a single actuating spring connected at one end with a shutter blade opening and closing lever and at the other end with a closing actuating member. One end of the actuating spring acts to open the shutte... | 11/28/1978 |
| 4119979 | Timed piezoelectric shutter control for cameras A camera is disclosed which includes a shutter latchable in an open position to permit scene light to pass through a camera aperture, an electronic circuit for producing a sudden change in voltage after an exposure period determined by the level of scene ... | 10/10/1978 |
| 4099192 | Photographic camera with an electromagnetic control system A photographic camera having a magnetic actuating device associated with an electronic control device for initiating a release of one or more of the camera mechanisms from the cocked position thereof. In one embodiment of the invention, the magnetic actua... | 07/04/1978 |
| 4096503 | Safety device for the electric shutter of a camera In the electric shutter of a camera having a forward curtain restraining member for restraining a forward shutter curtain in charged condition, a rearward curtain restraining member for restraining a rearward shutter curtain in charged condition with the ... | 06/20/1978 |
| 4092657 | Electrically operated shutter with a mechanical control device An electrically operated shutter in which an exposure aperture is opened by actuation of a shutter blade opening member and closed by actuation of a shutter blade closing member and exposure time is controlled in accordance with the duration of excitation... | 05/30/1978 |
| 4051498 | Camera electric shutter with mechanical delay device An electric shutter in which an electrical circuit normally controls the automatic closing of the shutter lens aperture. A mechanical device in the shutter coactive with the electrical circuit closes the shutter lens aperture mechanically, automatically w... | 09/27/1977 |
| 4012751 | Photographic camera with electromagnetic actuator of the shutter segments A photographic camera shutter is moved to open and returned to its closed position by electromagnetic actuating means. A special electronic circuit is connected with said actuating means to energize the electromagnetic device with sufficient potential to ... | 03/15/1977 |
| 3980908 | Exposure control system A system for controlling the closing of a camera shutter includes photosensitive means for detecting the available light level in the field of view of the camera to provide an output control signal a predetermined time after initiation of shutter closure ... | 09/14/1976 |
| 3961345 | Opening and closing means for electrically controlled shutters An opening and closing means for electric shutters comprising a single actuating member capable of controlling, during its movement in one direction, both of opening and closing of shutter blades for the purpose of providing a shutter of simple constructi... | 06/01/1976 |
| 3955209 | Device for controlling an electric focal plane shutter A device for controlling an electric focal plane shutter in a camera is described, in which an electromagnet which controls the timing of a trailing curtain of the shutter is excited in response to the depression of a shutter release member and demagnetiz... | 05/04/1976 |
