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Class 396/454 - Having braking or damping member in path of shutter


Subclass of Class 396 - Photography
Definition: Subject matter wherein the means to slow the speed intersects
No. of patents: 18
Last issue date: 04/07/2009


NumberTitleIssue Date
7513701Imaging apparatus and light quantity regulating device used therein
An imaging apparatus includes an imaging optical unit for focusing light on an image-forming plane; a solid-state image pickup unit for photo-electrically converting light; a data transfer unit for controlling transfer of image data; a substrate disposed in an imagi...
04/07/2009
7367721Bi-stable mechanical photographic shutter
An electromagnetically operable rotary shutter is rendered bi-stable by the use of two linear electric motors, one to open the shutter and a second to close the shutter together with a latch that holds the shutter in either an open or a closed position in the absenc...
05/06/2008
7253575Industrial optical shutter
A highly versatile optical shutter for industrial and scientific applications is disclosed. The has a aperture which defines a light path through the shutter, and a shutter vane or blade that is moved into and out of the light path using a precision, microprocessor ...
08/07/2007
7210795Light quantity adjusting device and projector apparatus using the same
A light quantity adjusting device for adjusting light quantity of a projector apparatus. The adjusting device includes a substrate having an optical path opening and a blade guide surface having level differences in a direction perpendicular to the optical path; a p...
05/01/2007
7168865Preventing shutter-rebound in camera
A normally closed shutter in a camera has at least one blade that is moved to open and close the shutter. A movable blade-driver in the camera has a supporting connection with a fixed support to support the blade-driver for movement, and has a driving connection wit...
01/30/2007
7156564Blade driving device for use in cameras
A blade driving device for use in cameras of the present invention includes a base plate having an exposure aperture, an ND filter blade that is supported rotatably around a supporting shaft on the base plate and is moved to a position withdrawn from the exposure ap...
01/02/2007
7025513Optical apparatus, shutter device, and camera
A shutter/filter unit as an optical apparatus includes a shutter actuator, a filter actuator, a shutter drive ring, two shutter blades, and one ND filter, which are connected to a driving source body in series. The shutter blades are rotationally driven via the shut...
04/11/2006
7009653Photographing apparatus having function of preventing blur of still image
The present invention discloses a photographing apparatus having the function of preventing blur of a still image. A diaphragm unit controls the amount of light incident on a photoelectric transduction unit from a lens. A diaphragm driving unit controls an open/clos...
03/07/2006
6749349Sector blade driving device of a camera
A sector blade driving device includes a plurality of sector blades which define an adjustable photographic aperture, and a cylindrical member which surrounds the periphery of the sector blades to prevent harmful light from entering the photographic aperture from ou...
06/15/2004
6565270Light quantity controller and camera system including the same
A light quantity control unit includes a base plate having an aperture forming an optical axis; a blade member for regulating a condition of the aperture; a coil and a magnet rotor polarized with two magnetic poles, formed on the base plate; and a pair of...
05/20/2003
6554502Light quantity controller
A light quantity control apparatus includes a first base plate, at least one drive device mounted on the first base plate, a shutter blade mounted on the first base plate and engaging the drive device, an intermediate plate disposed above the shutter blad...
04/29/2003
6068412Shutter mechanism prevents accidental shutter opening due to physical shock
A shutter mechanism comprising an aperture through which ambient light is passed to cause a film exposure, a pair of shutter blades supported for pivotal opening movement in opposite opening directions away from one another to uncover the aperture to perm...
05/30/2000
5173728Magnet and shutter assembly for an electromagnetic shutter
A device for connecting a shutter blade to a electromagnetic camera shuttering system that utilizes an armature for producing a first magnetic field, and a stop to control the movement of a shutter blade. The device comprises: a shutter blade that moves a...
12/22/1992
4775872Shutter mechanism
An improved shutter mechanism is disclosed which is generally of the type wherein a shutter blade is mounted for pivotal opening movement and pivotal closing movement in opposite directions about a fixed pivot to uncover and recover a lens opening, wherei...
10/04/1988
4054892Slit shutter blade stabilizing device for cameras
A camera shutter having an aperture, shutter opening blades which travel from a position covering the aperture to a rest position uncovering the aperture to initiate exposure, and shutter closing blades which travel from a position away from the aperture ...
10/18/1977
3973269Shutter mechanism
An electrically controlled shutter device for a photograhic camera. The shutter device includes a shutter element which is mounted for movement for opening and closing a light admitting aperture of the camera. A drive mechanism causes the movement of the ...
08/03/1976
3967293Detent for low mass object
A detent of low mass consisting of a wire bent to form a torsion spring with laterally extending arms shaped for abutment with the moving object to be stopped. The tips of the arms are covered with a compressible, resilient material that absorbs the initi...
06/29/1976
3964081Anti-bounce shutter
A camera shutter in which opening and closing shutter blades are sequentially movable between terminal light unblocking and blocking positions of an exposure aperture respectively. Each blade defines a notch located to be movable relative to a pin positio...
06/15/1976
 
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