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| Number | Title | Issue Date |
| 8137012 | Camera shutter A camera shutter comprising a shutter driving means which has permanent magnets on both ends of a swingably journaled swinging lever and drives a shutter blade by conduction of electricity to a magnet coil wound around an iron core that is fixed so as to face the pe... | 03/20/2012 |
| 8137011 | Actuator and blade drive device for camera An electromagnetic actuator includes: a coil for excitation; a stator excited with different magnetic poles by energization of the coil; a rotor magnetized with the different magnetic poles in accordance with a circumferential direction, and rotated by a magnetic fo... | 03/20/2012 |
| 8132973 | Camera shutter A camera shutter comprising a shutter driving means which does not immediately start an operation to provide stable movement even though an operation signal is output. A camera shutter comprises a base plate having a shutter opening; a shutter blade for opening and ... | 03/13/2012 |
| 8128296 | Shutter assembly A shutter assembly includes a plurality of shutter blades movable between an open position and a closed position, a drive ring having first and second oppositely-facing sides, at least one of the shutter blades being movably coupled to the first side, and a first pe... | 03/06/2012 |
| 8047732 | Mechanical shutter and camera module having same An exemplary mechanical shutter includes a barrel, a first blade, a second blade, a third blade, a magnet, and a magnetic field generator. The barrel defines a through hole and an aperture in the hole. The first blade is arranged in the hole and mounted on the barre... | 11/01/2011 |
| 7976230 | Actuator mechanism and a shutter mechanism In one example, an actuator mechanism comprising: one or more coils for establishing a magnetic field; a rotating permanent magnet, which has at least one extreme position depending on the magnetic field; and driving members, which are coupled to the permanent magne... | 07/12/2011 |
| 7955008 | Magnet array member with more than four poles and shutter A magnet array member with more than four poles is used for being mounted on a shutter of a camera module of a portable mobile communication device, adjacent to one side of a yoke iron of the shutter. The magnet array member includes a disc portion and a driving por... | 06/07/2011 |
| 7922403 | Blade driving apparatus for cameras A blade driving apparatus for cameras includes a base plate having an aperture section for a photographing optical path; a partition plate having an aperture section for the photographing optical path so that a blade chamber is interposed between the base plate and ... | 04/12/2011 |
| 7845865 | Non contact shutter activation system and method A method of controlling a plurality of shutter blades activated by a solenoid to move the plurality of shutter blades between an open position and a closed position includes reducing an electrical signal applied to the solenoid while the plurality of shutter blades ... | 12/07/2010 |
| 7731434 | Actuator and blade drive device for camera An electromagnetic actuator includes; a coil for excitation; a stator excited with different magnetic poles by energization of the coil; a rotor magnetized with different magnetic poles in a circumferential direction thereof, and rotated by a magnetic force generate... | 06/08/2010 |
| 7708478 | Actuator mechanism and a shutter mechanism In one example, an actuator mechanism comprising: one or more coils for establishing a magnetic field; a rotating permanent magnet, which has at least one extreme position depending on the magnetic field; and driving members, which are coupled to the permanent magne... | 05/04/2010 |
| 7670068 | Actuator, shutter driving device for camera and method of manufacturing actuator An actuator includes: a coil for excitation; a stator excited with different magnetic poles by energization of the coil; a rotor magnetized with different magnetic poles in a circumferential direction, and rotated by magnetic force generating between the rotor and t... | 03/02/2010 |
| 7670069 | Shutter drive device for camera In a shutter drive device for a camera, the device including: a plate having an aperture; a shutter blade provided in the plate, and for opening and closing the aperture; and an driving source provided in the plate, and for driving the shutter blade. The driving sou... | 03/02/2010 |
| 7658559 | Lens-shutter coupling unit A lens-shutter coupling unit having a coupling structure of a lens shutter and a shutter unit capable of miniaturization and high-precision arrangement of a lens group, is provided. A shutter driving part for moving shutter blades and a filter driving part for movin... | 02/09/2010 |
| 7654756 | Actuator drive circuit and actuator device An actuator drive circuit includes a counter starting counting of a frequency-divided clock obtained by dividing a frequency of a reference clock in response to an activation signal, a D/A converter providing a converted voltage increasing gradually and stepwise in ... | 02/02/2010 |
| 7628554 | Camera shutter A camera may comprise a lens assembly to receive optical information from a subject and a shutter assembly comprising a blade, a base plate to pivotally support the blade, and a wire to move the blade in response to a current. The camera may include an image sensor ... | 12/08/2009 |
| 7544003 | Driving assembly of camera shutter and diaphragm A driving assembly of camera shutter and diaphragm comprises a first stator, a second stator, a coil set and a rotor. The coil set is installed between the first stator and second stator. A first wing is axially extended from a round periphery of the first stator an... | 06/09/2009 |
| 7513702 | Non-contact shutter activation system and method A shutter operating system is provided that depends on electromagnetic energy to operate shutter blades. A permanent magnet and solenoid system operate the shutter blades. Movement of the magnet causes the shutter blades to move between an open and a closed position... | 04/07/2009 |
| 7410310 | Blade driving apparatus for cameras A blade driving apparatus for cameras includes a base plate having an aperture for a photographing optical path; a cover plate having the aperture for the photographing optical path, provided with a blade chamber between the base plate and the cover plate; at least ... | 08/12/2008 |
| 7372179 | Stepper motor having solenoid coils around end portions of stator poles A stepper motor includes a rotor having a ring-shaped body having a circumference along which a plurality of magnetic poles of alternates. A plurality of stator members is arranged along and spaced from the circumference of the rotor. Each stator member has two limb... | 05/13/2008 |
| 7372498 | Image pickup apparatus having a shutter clutch In an image pickup apparatus having an openable and closable shutter mechanism to protect an image pickup lens portion of a ultra-small and light-weight video camera, the shutter mechanism is composed of a drive mechanism 34 including an output shaft rotated ... | 05/13/2008 |
| 7367722 | Front and rear curtain shutter device with start area A shutter device includes a stationary plate having a plurality of driving electrodes movable element opposes the stationary plate and including a sheet subjected to an electret-forming process. A drive control unit for moving the movable element using variation in ... | 05/06/2008 |
| 7358629 | Electromagnetic actuator The rotational torque of an electromagnetic actuator having a stator and rotor, such as a stepping motor, is increased. The electromagnetic actuator includes a rotor (30) having multiple magnetic poles (Nr1, Nr2, Nr3, N... | 04/15/2008 |
| 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 |
| 7338221 | Sector drive mechanism A sector drive mechanism includes an electromagnetic actuator including a rotor having four polarities, a C-shaped stator, and a current control portion that controls current applied to a first coil and a second coil, the C-shaped stator including a first magnetic p... | 03/04/2008 |
| 7338222 | Aperture apparatus An aperture apparatus includes a substrate having a lens opening, a first aperture sector having a first aperture opening, a second aperture sector having a second aperture opening, and a drive pin that is engaged in cam openings respectively formed in the first ape... | 03/04/2008 |
| 7304409 | Driving device and light amount controller A low-cost, small-sized and high-output driving device which makes it possible to produce two outputs separately and is easy to handle. The driving device has two driving units comprised of a coil, a stator, a magnet, and a rotor. The two driving units are arranged,... | 12/04/2007 |
| 7290947 | Light controller and image pickup device including the same A light controller includes a substrate having an optical path opening, a blade unit with a blade mounted on the substrate for opening and closing the optical path opening, a driver unit for driving the blade, and a stopper unit for restricting a movement of the bla... | 11/06/2007 |
| 7276825 | Stepping motor A stator is press fitted into a recess of a casing. The recess has a chamfered portion. The chamfered portion is arranged between an inlet opening end of the recess and a bottom of the recess in such a manner that a width of the recess is progressively increased alo... | 10/02/2007 |
| 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 |
| 7242123 | Actuator, light quantity adjusting apparatus, and stepping motor An actuator maintains high efficiency, can react to an increase in pole, has a high part fit, and can be manufactured at low cost while it is thinned. The actuator includes a magnet which is formed in a ring shape, in which at least one surface perpendicular to a ce... | 07/10/2007 |
| 7226224 | Miniaturized lens assembly A miniaturized lens assembly includes a front lens portion, a rear lens portion, a large diaphragm plate mounted between the front and rear lens portions, a small diaphragm plate rotatable relative to the large diaphragm plate, a shutter plate rotatable relative to ... | 06/05/2007 |
| 7215880 | One-time-use camera In one aspect of the invention, a camera is provided. The camera has a photosensitive element; a light blocking expansion structure combined with the photosensitive element to form a light tight chamber there between. The light blocking expansion structure has an ap... | 05/08/2007 |
| 7211910 | Step motor A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. ... | 05/01/2007 |
| 7182530 | Electrode shutter device with start area A shutter device includes a stationary plate having a plurality of driving electrodes movable element opposes the stationary plate and including a sheet subjected to an electret-forming process. A drive control unit for moving the movable element using variation in ... | 02/27/2007 |
| 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 |
| 7156564 | Blade 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 |
| 7154199 | Driving apparatus for moving member to be moved A magnet of a driving apparatus for moving a member to be moved from one abut end position to the other abut end position is caused to generate a magnetic force acting in the direction of an optical axis as well as a torque acting in a rotational direction. ... | 12/26/2006 |
| 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 |
| 7141772 | Three-dimensional location measurement sensor A three-dimensional location measurement sensor including first and second rotation plates to rotate about a fixed axial member independently of each other, a camera, formed inside the fixed axial member in the middle of the second rotation plate, a mirror, to be su... | 11/28/2006 |
