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7566180 Shutter unit for a digital camera  
A digital camera is provided with an imaging element including a plurality of pixels, a shutter unit capable of intercepting light transmitted from an object to the imaging element, and an optical...
7458738 Image-taking apparatus  
An image-taking apparatus is disclosed which allows preparatory driving for the next image-taking without degrading image quality and a reduction in time taken for one image-taking operation. The...
7390132 Lens barrier apparatus and image pickup apparatus having the same  
A lens barrier apparatus includes: swingable sectors opening and closing an opening, a swinging member swinging the sectors; and a drive portion driving the swinging member, and one ends of bias...
7259922 Light amount-adjusting device and light amount-adjusting device for projector unit  
A light amount-adjusting device has a base plate with an optical path aperture, first and second blade members, and a driving unit for swinging open and close the blade members. Each blade member...
7190393 Camera with improved illuminator  
An illumination and imaging system is provided with a co-axial illuminator that does not include a beamsplitter. The co-axial illuminator achieves efficiencies substantially in excess of those...
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...
7053514 Image apparatus and drive motor  
A drive motor is proposed, which serves as a drive source for a movement mechanism constituting an iris for an optical path of an imaging system. The drive motor has a shaft serving as a center of...
6933980 Shutter for digital still camera  
A rotor is constituted by a two-pole permanent magnet, and enabled to rotate by a predetermined angle in a direction corresponding to the direction electric current supplied to a stator coil. Two...
6811331 Lens shutter system  
A lens shutter system has an inner drive ring which is rotated by a drive motor and an outer drive ring which is rotated by the drive motor. A plurality of shutter blades of the lens shutter system...
6754008 Imaging lens arrangement designed for low light conditions  
Disclosed is an improved lens system for low light applications. This improved low light lens system is designed for any suitable low light application, such as the above described biological...
6724428 Shutter and lens apparatus of a digital camera with a stepless focusing function  
This invention discloses a shutter and lens apparatus including a lens housing for receiving a multi-function support. The multi-function support includes a lens seat fitting with a lens and two...
6702483 Optical element  
An optical device capable of controlling its optical transmittance. The optical device has a first liquid conductive or having a polarity and a second liquid. The first and second liquids are...
6637954 Shutter mechanism for cameras  
A lens shutter comprises shutter blades capable of moving within a shutter chamber of a camera to open and close a lens aperture. A stopper capable of entering into movement loci of the shutter...
6585429 Camera shutter unit having a shutter blade to open and close an exposure aperture  
The camera shutter unit of the present invention is provided with a diaphragm blade arranged to be capable of moving between a stopping-down position wherein an aperture is stopped down, and an...
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...
6467975 Quantity-of-light adjusting device and optical apparatus having the same  
A quantity-of-light adjusting device includes a drive source, a base member having an opening formed therein, and a blade arranged to move by being driven by the drive source and having three...
6456786 Lens-equipped film unit  
A lens-equipped film unit comprises a photographing mechanism including a photographic lens, a shutter of a fixed speed, an aperture and a strobe, and an unexposed photographic film has being...
6343881 Camera shutter apparatus  
In a camera shutter apparatus, a shutter blade is arranged movably In an open direction and a close direction relative to a lens aperture for opening and closing the lens aperture from a home...
RE36945 Shutter device in automatic focusing and exposure camera  
A shutter device of a camera which includes first and second sector mechanisms which constitute a lens shutter and which are independently opened and closed to define an aperture. A photometer, for...
6139202 Aperture/shutter system with a motor component  
According to the present invention, an aperture/shutter system comprises a stator, a homogeneous rotor and at least one shutter blade. The rotor is located adjacent to the stator and has at least...
6088534 Camera having an aperture controllable shutter  
A camera provided with an aperture controllable shutter capable of determining exposure by varying aperture movement, and a photographic lens capable of varying focal length. In accordance with the...
5997187 Shutter/diaphragm apparatus  
A shutter/diaphragm apparatus includes an intermediate plate between a diaphragm cam plate and a diaphragm rotating plate. A plurality of blades are provided between the diaphragm cam plate and the...
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...
5809357 Aperture system  
An aperture system includes aperture blades defining an aperture opening and an aperture mechanism for moving the aperture blades, both of which are provided in a barrel. The aperture system...
5687417 Electromagnetic actuator for providing a hard stop for moving blade aperture systems  
An hard stop for use with an aperture mechanism includes at least one blade moveable along a path between a closed position and at least one open position. At least one hard stop piston is moveable...
5602610 Shutter for camera  
When a driving member is rotated counterclockwise by a single motor with a pair of sectors biased in the closing direction by a biasing spring, a first driving pin causes an operating lever to...
5594519 Blade mechanism  
A blade mechanism includes a driving ring. At least two blades each have a pivot, a driving pin and an opening. The pivot of one blade is placed between the pivot and the driving pin of the other...
5557360 Apparatus for controlling an operation of a shutter  
A shutter operation control apparatus of the present invention includes at least two shutter sectors between which a size of an aperture is defined. The apparatus comprises a shutter control plate...
5502524 Aperture/shutter mechanism with damping member  
An aperture/shutter mechanism includes one or more shutter blades moveable to various aperture openings between a fully open and closed position. At least one damping member has a damping surface...
5432576 Aperture mechanism having a blade positionable in an open position by a hard stop  
An aperture mechanism includes at least one blade moveable along a path between a closed position and at least one open position. At least one hard stop is moveable between a first position, out of...
5337110 Electromagnetic actuator  
An electromagnetic actuator that utilizes magnetic attractive and repulsive forces through the interaction of permanent magnetic and electromagnetic fields for moving an aperture/shutter blade or...
5325142 Variable close loop controlled aperture/shutter system  
An electronically actuated shutter in which the location of the shutter blades are known to accurately control the aperture size and exposure. A gradient neutral density strip, a light source and a...
5293542 Iris for video camera  
A video camera in which an iris in an optical system is composed of a plurality of diaphragms, and at least two of the plurality of diaphragms are respectively provided with a light amount limiting...
5255037 Shutter blade opening and closing device  
The camera shutter comprises two shutter blades which have first opening forming portions and second opening forming portions capable of alternatively forming two exposure openings different in...
5237357 Aperture and focus adjusting device for a camera  
An aperture and focus adjusting device for a camera, is provided with only one reversible motor, a first adjusting mechanism, and a second adjusting mechanism. The first adjusting mechanism is...
5043753 Camera shutter blade device  
The camera shutter device has four blades disposed in overlapping relation to each other and comprised of a pair of dominant blades effective to cover a dominant part of an aperture and another...
5005034 Camera mechanism  
A camera mechanism in which a shutter plate operating member is slidably mounted for movement between a cocked position and rest position and biased by biasing means into said rest position, and in...
4987435 Compact camera with apparatus size adjustment by zooming  
A compact camera has a zooming lens system for regulating a focal distance and a shutter blade member for opening and closing the lens system. The blade member is shifted forwardly from its rest...
4972078 Pulse generating circuit for detecting aperture size of camera shutter  
In at least one of a plurality of shutter vanes forming a shutter there are provided a plurality of openings adapted to detect the movement of the shutter vanes. A photointerrupter is turned on and...
4778255 Diaphragm driving mechanism  
A diaphragm driving mechanism which includes diaphragm blades, a diaphragm drive member for driving motion of the diaphragm blades, a support member for pivotally supporting the diaphragm blades, a...
4720725 Flashmatic device for cameras  
A flashmatic device for cameras equipped with a programmed electronic shutter having sectors serving also as diaphragm blades, firing the flash at a suitable point in a phase of the shutter...
4650307 Electromagnetic actuator  
An electromagnetic actuator operable with a source of electric current has two overlapping, oppositely movable armatures that are mounted on resiliently flexible cantilever spring members and...
4650306 Electromagnetically releasable shutter for a camera  
An electromagnetically releasable shutter for a camera comprises an electromagnet (8) which is energized upon the execution of shutter releasing operation and de-energized after an exposure time...
4623233 Electromagnetically driven shutter device  
An electromagnetically driven shutter device in which a first coil drives shutter blades to control an aperture and shutter time. A second coil controls the moving distance, that is maximum...
4558937 Electromagnetic blade mechanism  
There is disclosed an improved electromagnetic actuator for use in shutter applications. Included in the actuator is a magnetic arrangement for minimizing the effects of forces on the actuator...
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...
4487493 Electromagnetically driven shutter  
An electromagnetically driven shutter includes combined diaphragm-shutter blades, the opening and closing of which is controlled by a swingable coil arranged in magnetic fields to travel forwards...
4410255 Electromagnetic drive device for electro-magnetically operated shutter  
An electromagnetic drive device of an electromagnetically operated shutter has a permanent magnet which is of a square shape and is magnetized into a multipolar state; a rotation shaft disposed in...
4408857 Method and circuit for controlling an electromagnetic actuator in photographic apparatus  
An improved control circuit for an electromagnetic actuator of the type having an armature mounted for movement in a magnetic field, and means connected to the armature for urging the armature...
4395104 Electrically programmed shutter assembly  
An electronically programmed shutter assembly for a camera including an oing ring and a closing ring with locking shutter blades activated by rotation of the rings is provided. The locking ring is...
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