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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7806605 | Light amount adjustment apparatus and image pickup apparatus Disclosed herein is a light amount adjustment apparatus, including: a shutter blade and a filter blade each configured to operate in a predetermined direction to adjust the amount of light transmitted through a lens group; a first magnet configured to drive the shut... | 10/05/2010 |
| 7396169 | Light quantity adjusting device and photographing device having the same A light quantity adjusting device includes a ring-shaped base plate having an exposure aperture at a center thereof, a first light quantity adjusting blade arranged in the exposure aperture, a first drive device for opening/closing the first light quantity adjusting... | 07/08/2008 |
| 7374353 | Light control apparatus and optical apparatus There is provided a light control apparatus that maintains the overall apparatus size small, increases the number of stop stages, and is suitable for both the shutter and stop actions. A light control apparatus includes a first actuator, a second actuator, a first l... | 05/20/2008 |
| 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 |
| 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 |
| 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 |
| 7104708 | Sector drive unit for camera A sector drive unit for a camera includes sectors capable of opening and closing an aperture provided on a base plate. A first actuator drives the sectors to open and close the aperture, and a drive force transmitting mechanism transmits a driving force of the first... | 09/12/2006 |
| 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 |
| 6565270 | Light 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 |
| 6550986 | Light quantity controller A light amount control apparatus includes at least one blade member facing an optical axis aperture on a base plate and freely opening and closing the aperture, a rotating magnet rotor interconnected with the blade member to open and close the blade membe... | 04/22/2003 |
| 6382848 | Shutter for camera A shutter for a camera having a small size is driven by coil patterns formed in a spiral shape on at least one of a fixed printed board and a movable printed board. On faces of a shutter base plate and a sector ring opposed to each other, a cam mechanism ... | 05/07/2002 |
| 6336752 | Dual motor reciprocating belt shutter A system and method are provided for exposing an imaging medium. The method uses a focal plane shutter system with two reversible motors controlled by a servo control processor. A belt connects the motors. One end of the belt is attached to a shaft of the... | 01/08/2002 |
| 6033131 | Hybrid silicon-based micro-electromagnetic light shutter A hybrid, micro-electromagnetic light shutter includes a silicon body having a top surface with an arcuate groove formed on the top surface. A recess and a light aperture are formed in the top surface of the silicon body proximate to the arcuate groove. A... | 03/07/2000 |
| 6000860 | Method for controlling a focal-plane shutter having two motors The invention relates to a method for controlling an electronically directly driven focal-plane shutter which has two lightproof curtains, each of which is associated with, and controlled by, an electric drive motor. The drive motors move the curtains acr... | 12/14/1999 |
| 5969444 | Stepping motor and taking lens barrel for camera incorporating said stepping motor A stepping motor is equipped with a rotor, a supporting member that rotatably support the rotor, and stators that have multiple stator teeth and that face each other across the diameter of the rotor, wherein said multiple stator teeth are positioned such ... | 10/19/1999 |
| 5970268 | Shutter device of camera having a light blocking member with a variable starting position A shutter device having a first light blocking member which travels from a closed state to a fully open state for making exposure, and which is driven by a first motor. A second light blocking member travels from a predetermined position to a closed state... | 10/19/1999 |
| 5953550 | Shutter device of camera A shutter device includes first and second light blocking members arranged to be movable to vary the amounts of opening. First and second motors are arranged to drive respectively the first and second light blocking members, and a control circuit is arran... | 09/14/1999 |
| 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 |
| 5802415 | Dual coil actuator A dual coil actuator comprising a pair of independently moveable electrically conductive coils, is characterized in that a single magnet core generates a single magnetic field, and the coils are positioned around the single magnet core, spaced from each o... | 09/01/1998 |
| 5706120 | Device for controlling an amount of light allowed to reach a photosensitive surface A device for controlling an amount of light allowed to reach a photosensitive surface includes a movable light regulating member, an electrically conductive coil mounted to move with the member, a first permanent magnet having a north pole located adjacen... | 01/06/1998 |
| 5333025 | Rotating magnet focal plane shutter usable in a camera and having an improved device for holding the shutter in a closed position A shutter for a camera having a film exposure opening comprising a shutter curtain movably mounted in the camera for opening and closing the exposure opening, an electromagnetic driver operatively coupled to the shutter curtain for moving the curtain betw... | 07/26/1994 |
| 4839679 | Dual voice coil shutter A dual voice coil shutter is disclosed. The shutter mechanism is utilized in a stepper system, a laser system, or other carefully channeled light device to provide for opening and closing upon an optical path. The present invention is particularly useful ... | 06/13/1989 |
| 4664494 | Electronic focal plane shutter A photographic shutter includes first and second curtains having opaque portions terminating at first and second edges which are positionable in spaced relation to define an exposure slit. Rollers support the curtains for movement of the slit in a certain... | 05/12/1987 |
| 4643553 | Electro-magnetically driven shutter An electro-magnetically driven shutter is arranged to make an exposure by driving shutter blades to travel with driving members with power supply effected to an electro-magnetic drive source and to cut off the power supply upon completion of the travel of... | 02/17/1987 |
| 4596453 | Electromagnetic drive device for shutter An electromagnetic drive device for a focal plane shutter having a tubular yoke and a cylindrical permanent magnet concentrically fixed to the yoke by clamping apparatus. A moving coil in a space between the permanent magnet cylinder and the yoke rotates ... | 06/24/1986 |
| 4417797 | Variable force electromagnetic shutter In the disclosed focal plane shutter, desired travelling characteristics of shutter curtains are obtained by adjusting the distribution of magnetic flux density between the permanent magnet and the coil which constitute an electromagnetic drive source. Pr... | 11/29/1983 |
| 4375915 | Shutter time control camera A camera includes a drive source which generates a driving torque for moving shutter curtains in response to electrical battery power, and controls the running of the shutter curtains by the driving torque from the drive source. When the battery voltage i... | 03/08/1983 |
| 4373797 | Electromagnetically driven shutter An electromagnetically driven shutter, wherein between the electromagnetic driving source and the shutter blade actuating member which receives the driving force from the driving source a play is provided in such a manner that after the electromagnetic dr... | 02/15/1983 |
| 4367938 | Electromagnetically driven shutter An electromagnetically driven shutter for use in a photographic camera has blades driven by an electromagnetic drive source to move in vertical directions. The electrical power supply control means for the electromagnetic drive source is provided with mea... | 01/11/1983 |
| 4339190 | Electromagnetically driven focal plane shutter A process for producing an electromagnetically driven focal plane shutter including the steps of assembling an electromagnetic drive source and transmission members in a drive unit and the shutter blade groups in a shutter blade unit, and then assembling ... | 07/13/1982 |
| 4338013 | Electromagnetically driven shutter In the disclosed shutter, shutter blades are reciprocatable between exposure start positions and end positions. Reciprocative rotating electromagnetic drive sources with stators and rotors reciprocate the shutter blades. Magnetic members on the stator fac... | 07/06/1982 |
| 4334749 | Camera having an electromagnetically driven shutter A camera having an electromagnetic driving source for operating a focal plane shutter in the camera, includes a shutter base plate and a driving arm pivoted on the base plate for swinging movement in a plane parallel to the plate. A group of thin shutter ... | 06/15/1982 |
| 4333721 | Electromagnetically driven shutter An electromagnetically driven shutter of which the leading and trailing curtains are driven by respective electromagnetic drive sources to make a forward and backward movement. The electromagnetic drive sources each have a magnetic winding constructed in ... | 06/08/1982 |
| 4303326 | Electromagnetically driven shutter device for camera An electromagnetically driven shutter for camera for driving the shutter blades by means of an electromagnetic driving source being characterized in that the current supply circuit to the electromagnetic driving source from the camera power source is prov... | 12/01/1981 |
| 4290682 | Electromagnetically operated shutter In the slit shutter disclosed, an actuator transmits the rotational force of an electromagnetic drive arrangement to move shutter blades through opening and closing cycles. A spring arrangement for engaging the actuating means serves to aid the shutter mo... | 09/22/1981 |
| 4213689 | Electromagnetically actuated shutter mechanism for cameras The shutter mechanism includes a blade pivotally mounted intermediate its ends. Nearer one end of the blade is an opening through which the subject is viewed when focusing the camera and through which the picture itself is later taken as the blade swings ... | 07/22/1980 |
| 4149794 | Motor-driven shutter mechanism A motor-driven shutter mechanism comprising two shutter members adapted to open and close an exposure aperture for the passage of the incoming light therethrough. These shutter members are operatively coupled to each other and to the drive shafts of two m... | 04/17/1979 |
