Class 396/484 - Plural plates

Subclass of Class 396 - Photography
Definition: Subject matter having more than one stiff sheet.
No. of patents: 112
Last issue date: 09/13/2011

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Number	Title	Issue Date
8016497	Image pickup apparatus The image pickup apparatus includes a lens barrel, and two barrier blade groups each configured to include a first barrier blade, a second barrier blade and a third barrier blade, each barrier blade group being movable between a closing position for covering a front...	09/13/2011
7891890	Shutter device and image pickup apparatus including the same A shutter device includes first and second shutter blades, a shutter base plate rotatably supporting the first and second shutter blades, a partition plate arranged between the first and second shutter blades supported by the shutter base plate, and a cover plate fi...	02/22/2011
7604422	Large-aperture focal plane shutter Described is a compact focal plane shutter system adapted for large-format exposure shutters. The focal plane shutter includes at least one multi-segmented screen having multiple rigid blades. Each blade can be moved at a different velocity. By using multiple blades...	10/20/2009
7452143	Electrostatic actuator, shutter device, imaging module, and camera A shutter device comprising a fixed member which has a plurality of electrodes arranged on a surface, a light-transmitting region which is provided in the fixed member, a light-shielding member which is able to move between two positions where the light-transmitting...	11/18/2008
7380999	Shutter device and image pick up apparatus A shutter device, which is capable of achieving power-saving when holding a shutter opening in an open state for a long time by mechanically inhibiting an operation of a second light shielding plate in a direction to close the shutter opening, is provided. The shutt...	06/03/2008
7350990	Shutter device for camera lens assembly In a shutter device for use with a camera lens assembly, the shutter device includes a shutter base, a shutter blade is rotatably mounted on the shutter base, a magnet movably coupled to the shutter base so as to enable rotation of the shutter blade, and a yoke exte...	04/01/2008
7316514	Light controller and image pickup device including the same A light controller includes a substrate that has an optical path opening; at least a pair of blades that is reciprocally supported on the substrate and opens and closes the optical path opening; and a driver unit that drives the opening and closing of the pair of bl...	01/08/2008
7253575	Industrial 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
7223960	Image sensor, an image sensor pixel, and methods of forming the same A semiconductor image sensor utilizing a metal mesh filter to transmit light of a specific wavelength to a photoconversion device, and method of making said image sensor. Semiconductor image sensor pixel cells using varied metal mesh filters may be arranged in a Bay...	05/29/2007
7212244	Focal plane shutter apparatus A focal plane shutter apparatus is constructed by a light shielding blade, a fitting pin attached to the blade and an arm which is slidably engaged with the fitting pin to open or close the blade. A surface hardness of the fitting pin is higher than that of the arm....	05/01/2007
7178998	Focal plane shutter for digital still cameras A drive member attached to the output shaft of a DC motor placed on a shutter base board includes a drive pin connected to the arm of a shutter blade within a blade chamber for driving the shutter blade to open and close an exposure opening with the reciprocal rotat...	02/20/2007
7172349	Light amount control device and optical apparatus with guard portion to protect ND filter from lever member Provided is a light amount control device eliminating a deviation in image forming position over the entire area of the variable range of an aperture due to an ND filter and assuring smooth stopping operation. The light amount control device of the present invention...	02/06/2007
7161745	Aperture stop mechanism, illumination optical system, projection optical system, and projector An aperture stop mechanism is composed of a small number of components, and accurately controls the position of a member that defines the rim of an aperture. The aperture stop mechanism (2) includes an aperture base plate (21), two aperture blades (...	01/09/2007
7147389	Focal plane shutter A focal plane shutter has a light shielding shutter blade. A blade dowel is attached to the shutter blade. A blade arm is slidably engaged with the blade dowel to open or close the shutter blade. A surface hardness of the blade dowel is higher than a surface hardnes...	12/12/2006
7140790	Sector drive assembly for camera A sector drive assembly for a camera which can open and close an aperture has a sector drive unit having an actuator, a drive force transmitting mechanism, and a sector position detecting unit that are removably mounted as a unit to a support plate, and a sector uni...	11/28/2006
6899473	Focal plane shutter for cameras A focal plane shutter for cameras is provided with a shutter blade which can be actuated to both directions for opening and for closing a photographing optical path by an electromagnetic apparatus. When a rotor is rotated to the direction corresponding to the direct...	05/31/2005
6835009	Shutter apparatus Disclosed are shutter apparatus provided with a shutter base plate having a shutter aperture, a first arm member which rotates around a center of rotation at a first axis, relative to the shutter base plate, a second arm member which rotates around a center of rotat...	12/28/2004
6805500	Focal-plane shutter for cameras A focal-plane shutter for cameras is constructed so that the second blade group is placed in a blade chamber on the shutter base plate side and the first blade group is placed in a blade chamber on the auxiliary base plate side. The auxiliary base plate is placed on...	10/19/2004
6776540	Shutter device A shutter device of the invention includes: a shutter base plate having a shutter opening; a first arm member which rotates with a first shaft as a rotation center relative to the shutter base plate; a second arm member which rotates with a second shaft as a rotatio...	08/17/2004
6749348	Focal-plane shutter for digital still camera A first blade is made up of two arms and three blades supported by the arms, wherein one of the arms is rotated in the clockwise direction by a driving pin pressing a pressed portion thereof only when a first-blade driving member is rotated by the force from a drivi...	06/15/2004
6709173	Focal-plane shutter for camera A first blade actuating member and a second blade actuating member have pins, respectively. A movable contact member, which is urged to rotate in a counterclockwise direction, has locking arms and a contact piece member. When the first blade actuating member is rota...	03/23/2004
6637955	Shutter device A shutter device includes a shutter base plate having a shutter aperture, a plurality of shutter blades, and an arm member arranged to swing on a predetermined shaft provided on the shutter base plate. The arm member is connected to each of the plurality ...	10/28/2003
6536962	Focal-plane shutter for digital still cameras A focal-plane shutter for digital still cameras includes a first blade covering an exposure aperture only immediately before an exposure operation is performed; a driving member for the first blade having an iron piece member, actuated in an exposure oper...	03/25/2003
6530703	Focal-plane shutter having resilient stopping members for shutter blades A focal-plane shutter comprises a shutter plate having a shutter opening, opening blades and closing blades for opening and closing the shutter opening, and arms connected by connector portions to the opening and closing blades for driving the blades para...	03/11/2003
6425698	Camera shutter with plural blades A camera shutter has a set of opening shutter blades and a set of closing shutter blades. A shutter driver mechanism alternately displaces the opening and closing shutter blades to a first position wherein the blades are fanned-out and cover a shutter ope...	07/30/2002
6407873	Safety shutter A safety shutter suitable for intercepting an energy beam. The safety shutter includes at least one shutter blade having a top end and a bottom end. At least one motor is coupled to the bottom end of the shutter blade such that the motor rotates the shutt...	06/18/2002
6390691	Focal-plane shutter for camera A focal-plane shutter for a camera has a base plate having a shutter opening and which is connectable to a body of the camera having a rear cover which can be opened and closed during a film replacement operation. The focal-plane shutter has an opening se...	05/21/2002
6106165	Focal plane shutter device having shutter blades positioned with respect to an autofocus device to improve shutter speed A focal plane shutter blade device has a front blind, rotated by a front driving arm and a front trailing arm, that covers an aperture of a camera prior to an exposure operation. The front blind includes a front slit forming blade. The front slit forming ...	08/22/2000
6072958	Camera having a shutter instrumentation device which detects the travel of the shutter A camera having a shutter instrumentation device for accurately measuring the actual shutter time. The camera includes a shutter which travels in a travel plane to open and close an aperture. A signal projection unit, positioned to one side of the travel ...	06/06/2000
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
5875368	Focal plane shutter device A focal plane shutter device which, regardless of the number of times of operation, does not lose precision of operation. The shutter device has bend portions disposed in drive arms which drive shutter blades. The convex portions of the bend portions (rid...	02/23/1999
5828920	Translational electromagnetic camera shutter for variable aperture applications A shutter is disclosed having a shutter blade frame comprised of two spaced apart rails, each rail incorporating at least one magnet section. Individual pairs of electromagnets are positioned for movement along the rails. At least one shutter blade, havin...	10/27/1998
5826124	Focal plane shutter A focal plane shutter comprises a base plate having a shutter opening, at least one shutter sector group having sectors, and arms pivotally connected to and supporting the sectors for displacing the sectors relative to the shutter opening. At least a firs...	10/20/1998
5797055	Focal plane shutter and method for producing same An extremely durable, super-high speed shutter with speeds of 1/8000 second or faster advantageously increases the blade acceptance rate, reduces the cost, prevents abnormalities such as light leaking between the curtains and the like, contributes to the ...	08/18/1998
5761552	Camera having shutter instrumentation device for measuring shutter speed A camera which can detect the actual opening/closing state of the camera shutter based on a signal reflected towards the shutter by a signal projection unit and received by a signal receiving unit. The signal received by the signal receiving unit is based...	06/02/1998
5749014	Shutter device A shutter device comprises a shutter blade which operates according to an exposure operation, a first blade driving spring for giving an urging force working in a predetermined direction to the shutter blade substantially over an entire operating range of...	05/05/1998
5708892	Support structure of a focal plane shutter in a camera A support structure of a focal plane shutter in a camera reduces the effects of impacts or vibrations accompanying opening and closing movements of a shutter such that the impacts or vibrations do not reach a camera body. The support structure includes a ...	01/13/1998
5664247	Shutter brake mechanism A durable brake mechanism comprises shutter blades; arms that support the shutter blades; drive pins, which are linked to the arms and cause the shutter blades to move by driving the arms; and brake levers, which contact the drive pins and apply a braking...	09/02/1997
5659821	Driving apparatus employing vibration type motor with standing wave control of camera shutter system The present invention relates to a driving apparatus arranged to perform driving control of a travelling member, such as a shutter member, by using a vibration wave motor. According to the present invention, the travelling member is arranged to be driven ...	08/19/1997
5646712	Method and apparatus for opening a camera Apparatus (90) is disclosed for opening a camera of a type including a front cover part (12) and a back cover part (14), each of the front cover part and the back cover part having a top wall (34, 42) and a bottom wall (36, 44) and first and second opposi...	07/08/1997

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Class 396/484 - Plural plates