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A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 8147151 | Shutter device The shutter device includes a base, a post, a coil, a shutter, a first magnetic member, and a second magnetic member. The base defines a first aperture. The post is fixedly mounted on the base. The coil is connected to the post and rotatable around the post. The shu... | 04/03/2012 |
| 8057113 | Blade drive device and optical apparatus A blade drive device includes a shutter unit. The shutter unit includes: a blade swingably supported; and a plurality of boards defining a blade chamber, each having an opening opened and closed by the blade, and an actuator serving as a drive force of the blade and... | 11/15/2011 |
| 8047733 | Blade drive device A blade drive device includes: a board having a shutter opening; a blade for adjusting an amount of light entering the shutter opening; and a transmitting member for transmitting a drive force to the blade. The transmitting member includes a drive pin swinging about... | 11/01/2011 |
| 7959365 | Blade drive device and optical equipment A blade drive device according to a first embodiment includes: a board including an opening and a slide slot; a blade for adjusting an opening amount of the opening; and a transmitting member for transmitting a drive force from an electromagnetic actuator to the bla... | 06/14/2011 |
| 7955009 | Sector blade driving apparatus A sector blade driving apparatus includes: a board having an opening; a blade supported for linear movement, adjusting an opening amount of the opening, and having first and second engagement holes; a drive member rotating to drive the blade; and an arm transmitting... | 06/07/2011 |
| 7806606 | Miniature camera shutter and filter/aperture The present invention is a miniature camera module for use in miniature camera applications. It is an object of the present invention to provide the miniature camera module with solenoid controlled blades in order to alter the amount and quality of light passing thr... | 10/05/2010 |
| 7798730 | Camera blade shutter module The present invention is a miniature camera shutter module for use in miniature camera applications. It is an object of the present invention to provide the miniature camera shutter module with solenoid controlled blades in order to alter the amount and quality of l... | 09/21/2010 |
| 7766564 | Shutter device of a camera having two shutter blades A shutter device of a camera includes an upper plate and a bottom plate. An oscillator, which is provided between the upper plate and the lower plate, includes a rotator having a spindle, and the spindle pivots its opposite ends on pivot portions of the upper plate ... | 08/03/2010 |
| 7753602 | Lens barrel A lens barrel which enables cost reduction and size reduction by reduction of the number of component parts, and is capable of positively fully opening barrier blades to thereby open a photographic aperture. In the lens barrel, as the barrier drive member moves from... | 07/13/2010 |
| 7699545 | Shutter device and image pickup apparatus A shutter device includes a blade member and a detecting unit. The blade member includes a first blade, a second blade, a detection portion, and a limiting portion. The blade member controls a time of exposure, performed on a recording medium, on the basis of a magn... | 04/20/2010 |
| 7682092 | Camera shutter assembly having casing walls for guiding a shutter and method for producing same A shutter assembly has an actuator for applying a whip action on a shutter wing for blocking or exposing an aperture. The shutter wing has a first blade fixedly connected to the actuator and a second blade movably connected to the first blade. When the shutter wing ... | 03/23/2010 |
| 7441966 | Shutter and optical apparatus having the same A shutter for an optical apparatus has multiple sectors and an operation member. Each of the multiple sectors has a cam opening for engagement and is pivotally provided to open and close a shutter opening, the operation member moves each of said multiple sectors in ... | 10/28/2008 |
| 7422381 | Shutter apparatus and optical apparatus having the same A shutter apparatus includes a shutter substrate having a shutter opening, two shutter blades that are pivotally provided in the shutter substrate and that have cam openings, and an operation member that is engaged with the cam openings and that drives to turn the t... | 09/09/2008 |
| 7374352 | Light amount adjusting apparatus and image pickup apparatus Disclosed is a light amount adjusting apparatus for an image pickup apparatus which is capable of reducing the force with which a plate member and a blade member are held in close contact with each other and driving the blade member smoothly even in a high-humidity ... | 05/20/2008 |
| 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 |
| 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 |
| 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 |
| 7213983 | Sector drive apparatus for use in optical apparatus A sector drive apparatus for use in an optical apparatus, the sector drive apparatus includes a sector having a first engagement opening engaged with an operation member that reciprocates in a given range and a second engagement opening engaged with a spindle fixed ... | 05/08/2007 |
| 7178999 | Shutter-opening/closing and shutter-flash synchronization driver for dual-blade shutter in camera A flash camera has a single-piece shutter-opening/closing and shutter-flash synchronization driver that translates in one direction to pivot a pair of shutter blades away from one another and simultaneously push a movable switch contact of a normally open shutter-fl... | 02/20/2007 |
| 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 |
| 7156565 | Driver for opening and closing dual-blade shutter adapted to be reset without re-opening shutter In a camera, a dual-blade shutter has a pair of shutter blades supported for opening and closing movement to uncover and re-cover an exposure aperture, and a shutter driver that projects into respective overlapping slots in the shutter blades and is supported for sh... | 01/02/2007 |
| 7114862 | Single focus lens module A single focus lens module includes a mechanical shutter taking lens assembly and there are front lens shutter module, taking lens and holder from the object side to the image side. The taking lens is connected to the holder by threading. The front taking lens assem... | 10/03/2006 |
| 6929410 | Camera shutter Systems and methods are disclosed for providing camera shutter mechanisms. For example, in accordance with an embodiment of the present invention, an improved camera shutter mechanism and techniques for manufacturing the camera shutter mechanism are disclosed. ... | 08/16/2005 |
| 6912097 | Iris diaphragm An iris diaphragm comprising an annular base, an annular rotatable element and a number of leaves which can be mounted to form a variable aperture, each leaf extending between the base and element and being connected thereto in a pivotal relationship, is characteris... | 06/28/2005 |
| 6899472 | Electromagnetic drive An electromagnetic unit is provided for a lens barrel in which a light exposure controlling unit for controlling an amount of light is integrated. The electromagnetic unit is employed as a drive source for driving shutter blades, and a direction of the movement of a... | 05/31/2005 |
| 6869233 | Image capture device An image capture device is provided including more compact components to enable the fabrication of more compact image capture devices. In one particular embodiment, a compact shutter mechanism is provided that requires less space within the camera when the shutter i... | 03/22/2005 |
| 6867932 | Iris type light quantity adjusting device, lens device, and image-taking apparatus An iris type light quantity adjusting device is disclosed that includes: a plurality of shading blades, each shading blade pivoting around each shaft provided around a fixed opening in a fixed member. At least one shading blade has... | 03/15/2005 |
| 6853810 | Quantity-of-light adjusting device A quantity-of-light adjusting device comprises a first quantity-of-light adjusting blade and a second quantity-of-light adjusting blade which move to adjust quantity of light, and a detecting member which detects that the first quantity-of-light adjusting blade is a... | 02/08/2005 |
| 6796729 | Shutter for camera A shutter for a camera capable of opening a shutter sector in a reduced period of time includes a shutter opening formed in a shutter plate, shutter sectors for opening and closing the shutter opening, a drive lever having a drive pin for operating the shutter secto... | 09/28/2004 |
| 6786657 | Camera frame assembly having independently back-pivoting drive hub for impact shutter A camera frame assembly has a base member and a drive hub connected to the base member. A shutter is joined to the drive hub. A shutter driver is mounted to the base member. The shutter driver selectively deflects from a charged state to a discharged state and impac... | 09/07/2004 |
| 6752542 | Lens shutter mechanism A lens shutter mechanism includes a support frame having a photographing aperture; at least three shutter sectors which open and close the photographing aperture via rotating axes which extend parallel to the optical axis; and at least three diaphragm sectors which ... | 06/22/2004 |
| 6738568 | Camera frame assembly having shutter that slides forward and back with zoom lens A camera frame assembly has a frame that defines an optical axis. A shutter driver is mounted to the frame. The shutter driver selectively deflects from a charged state to a discharged state. A shutter is movable, relative to the frame, in directions parallel to the... | 05/18/2004 |
| 6733192 | Electromagnetic actuator and camera blade driving device An electromagnetic actuator according to the present invention has a rotor magnetized to have a plurality of poles; a base rotatably supporting the rotor; a yoke having a plurality of magnetic pole portions that are formed so as to face an outer peripheral surface o... | 05/11/2004 |
| 6726381 | Focal-plane shutter for cameras A focal-plane shutter for a camera is provided with two blade chambers into which a space between two base plates is partitioned by an intermediate plate having an aperture for exposure. A shutter blade group placed in each of the blade chambers is constructed with ... | 04/27/2004 |
| 6687457 | Camera frame assembly having four-bar linkage shutter actuator A camera fame assembly has a frame and a pair of tie bars extending outward from the frame. The tie bars each have opposed first and second ends. The first ends are spaced apart. The first ends are each pivotally joined to the frame. A parallel bar is piv... | 02/03/2004 |
| 6554502 | Light 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 |
| 6550987 | Light shielding blade and method of manufacturing the same A reflection preventing treatment is performed with respect to an edge face of a light shielding blade. The blade is composed of a film material made of a polyester, and is formed into a predetermined shape as a base piece. A flat face portion of the blad... | 04/22/2003 |
| 6513932 | Motion picture film projector An improved motion picture film projector (100) comprises a Geneva Mechanism (120), which intermittently drives a film (114). A light source (116) projects light through the film (114) and a shutter (106) periodically interrupts the light source (116). Th... | 02/04/2003 |
| 6503001 | Shutter driving mechanism for camera A camera shutter driving mechanism includes a film-driven ratchet mechanism rotated by a film moving through a film passage in a camera, and a shutter release sensing mechanism located adjacent to and rotated by the film-driven ratchet mechanism to conver... | 01/07/2003 |
| 6477328 | Shutter for a camera A shutter for a camera comprises sectors for opening and closing a shutter opening by reciprocal pivotal movement, a motor for reciprocally and pivotally moving the sectors by forwardly and reversely rotating a rotor of the motor by forward and reverse el... | 11/05/2002 |
