| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 396453000 | Having braking or damping | 20 |
| 20080267615 | SHUTTER DEVICE AND IMAGE PICKUP APPARATUS - A shutter device makes it possible to restrict bounding of a shutter blade using a shock-absorbing member when movement of the shutter blade is completed. In addition, the shutter device makes it possible to reduce production of dust that is produced when the shock-absorbing member and the shutter blade collide with each other. Examples of dust are wear powder and flake. | 10-30-2008 |
| 20100150544 | Iris damper - An iris damper comprising a housing, a plurality of iris blades moveable to open and close the damper, and the plurality of iris blades comprising a first cooperating pair of iris blades, each iris blade of the first cooperating pair having a linear edge which is cooperatively contactable along a predetermined length (L) with an opposing linear edge of the other iris blade in order to form a substantially gas tight seal between the first pair linear edges when the iris damper is closed. | 06-17-2010 |
| 20110206362 | SHUTTER DAMPING ASSEMBLY - A rotary photographic shutter includes a base plate, a rotating ring, a plurality of shutter blades pivotally connected to the base plate, and moveable between an open position and a closed position in response to rotation of the ring, and an actuation assembly connected to the base plate, the actuation assembly includes a drive arm operable to selectively rotate the ring. The exemplary rotary photographic shutter also includes a bumper assembly comprising at least one resilient element fixedly disposed with respect to the base plate. The drive arm impinges the resilient element when the plurality of shutter blades is in the open and closed positions, and the drive arm is isolated from contact with the resilient element when the plurality of shutter blades is between the open and closed positions. The exemplary rotary photographic shutter also includes a damper fixedly disposed with respect to the base plate such that at least one shutter blade of the plurality of shutter blades impinges the damper at the open position and is isolated from contact with the damper at the closed position. | 08-25-2011 |
| 20110299846 | THERMAL IMAGING CAMERA WITH A FAST ELECTROMECHANICAL SHUTTER DEVICE - A thermal imaging camera, with an electromechanical shutter device for interrupting the ray path from time to time, has a motor ( | 12-08-2011 |
| 20120141108 | FRICTION MEMBER FOR BRAKE MECHANISM AND CAMERA SHUTTER USING THE SAME - A friction member for a brake mechanism in a camera shutter is provided. The friction member includes a carbon nanotube polymer composite. The carbon nanotube polymer composite includes a polymer and a carbon nanotube structure mixed with the polymer. The carbon nanotube structure includes a plurality of carbon nanotubes joined by van der Waals attraction force. The camera shutter using the friction member is also provided. The camera shutter includes a drive mechanism and a brake mechanism. The drive mechanism includes a blade driving lever having a moving path. The brake mechanism includes two abovementioned friction members and a brake lever clamped between the two friction members. The brake lever is located at a termination of the moving path to brake the blade driving lever. | 06-07-2012 |
| 20120141109 | FRICTION MEMBER FOR BRAKE MECHANISM AND CAMERA SHUTTER USING THE SAME - A friction member for a brake mechanism in a camera shutter is provided. The friction member includes at least two carbon nanotube composite layers stacked on each other, each carbon nanotube composite layer includes a polymer and a carbon nanotube structure including a number of carbon nanotubes substantially oriented along a same direction. An angle defined by the carbon nanotubes oriented along the same direction in adjacent carbon nanotube composite layers ranges from greater than 0 degrees, and less than or equal to 90 degrees. The camera shutter using the friction member is also provided. The camera shutter includes a brake mechanism and a drive mechanism including a blade driving lever having a moving path. The brake mechanism includes two abovementioned friction members and a brake lever clamped between the two friction members. The brake lever is located at a termination of the moving path to brake the blade driving lever. | 06-07-2012 |
| 20120201529 | 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 permanent magnet coupled to the second side of the drive ring. The shutter assembly also includes a first solenoid selectively energizable to alternately attract and repel the first permanent magnet along an arcuate path beneath the first solenoid, thereby transitioning the plurality of shutter blades between the open and closed positions. The shutter assembly also includes a sensor assembly configured to detect a location of the first permanent magnet along the path. | 08-09-2012 |
| 20130084060 | FOCAL PLANE SHUTTER AND OPTICAL DEVICE - A focal plane shutter includes: first, second, and third boards respectively including openings through which light enters an image pickup element from an object side, and arranged in this order from the object side toward the image pickup element side; a blade arranged between the first and second boards and capable of opening and closing the openings; and a holding member arranged between the second and third boards, not coupled to the blade, and holding the second board from the image pickup element side. | 04-04-2013 |
| 396454000 | Having braking or damping member in path of shutter | 3 |
| 20120183287 | BLADE DRIVING DEVICE AND OPTICAL INSTRUMENT - A blade driving device includes: a board including an opening; a blade movable between a position receding from the opening and a position overlapping at least a part of the opening; and a buffering member having a loop shape, having an elasticity, abutting the blade at an end of a movable range of the blade, and being deformable such that the loop shape is warped when abutting against the blade. | 07-19-2012 |
| 20140363150 | METHOD FOR EMBEDDED FEEDBACK CONTROL FOR BI-STABLE ACTUATORS - A drive mechanism having a bi-stable motor driving an actuator with a high starting torque, and a slower, regulated velocity as the actuator moves through its range of travel. This advantageously maintains high torque margins at low velocity, and lowers the kinetic energy of the bi-stable actuator at end of travel by limiting the terminal velocity and establishing a softer stop. A solenoid may be used in one embodiment. Actual bi-stable motor values are obtained immediately before the move to maintain accurate control of the motor, such as the resistance and inductance of the motor coil. For instance, the bi-stable motor may be driven into a stop, and the coil resistance may be calculated by sensing current associated with the calibration voltage. Inductance may be measured similarly by applying low level AC currents. Back-emf is sensed through the coil resistance, and an estimated motor rotation rate is sent to a feedback loop to maintain the desired rate. | 12-11-2014 |
| 20160195796 | BLADE DRIVE DEVICE AND OPTICAL APPARATUS | 07-07-2016 |
| 396456000 | Of focal plane shutter | 9 |
| 20110150457 | FOCAL PLANE SHUTTER AND CAMERA HAVING THE SAME - A focal plane shutter having a front film and a back film which expose a charge-coupled device to light as they move back and forth between a cover plate and a base plate, between a charging position and a discharging position at a certain time interval. The focal plane shutter includes at least one lever member which is connected to the front film and/or back film, and which amplifies an impact force generated during a charging and a discharging movement of the front film and/or back film using a lever action. An elevating member slides in a direction parallel with the movement of the front film and/or back film by the impact force amplified in the lever member. An impact absorbing unit regulates the sliding movement of the elevating member to absorb impact energy generated by the movement and stop of the front film and/or back film. | 06-23-2011 |
| 20120141110 | FOCAL-PLANE SHUTTER FOR DIGITAL CAMERA - When photographing using an optical finer, a hold member rotates, and a pressing member pushes a pushed portion of an iron piece member to rotate an unlocking member for a first blade and an unlocking member for a second blade to bring the iron piece member into contact with an iron core member of an electromagnet. When photographing using an electronic finder, a permanent magnet rotor of an electromagnetic device is rotated in a state where the electromagnet is not magnetized, a deterring member is made to face the operation locus of a deterred portion of the unlocking member for a second blade, and then, the hold member is rotated. Thereby, the unlocking member for a second blade is deterred by the deterring member so as to allow observation using the electronic finder without pushing the locking member for a second blade. | 06-07-2012 |
| 20120177359 | FOCAL PLANE SHUTTER AND OPTICAL DEVICE USING SAME - A focal plane shutter includes: a board including an opening; blades capable of opening and closing the opening; a drive member movable between a start position and a terminal position, biased toward the terminal position, and driving the blades; a brake member supported to abut and move away from the drive member positioned at the terminal position, and biased to abut the drive member positioned at the terminal position; and a set member rotatable in only one direction, and moving the drive member from the terminal position to the start position; wherein the set member includes a drive portion abutting the brake member to move the brake member away from the drive member and then abutting the drive member to move the drive member toward the start position. | 07-12-2012 |
| 20120195586 | FOCAL PLANE SHUTTER FOR CAMERAS - In a first blade unit-driving unit which is rotated by elastic force of a first blade unit-driving spring in shooting, its driving pin rotates a first brake member counterclockwise and a second brake member clockwise against the elastic force of a coil spring fitted to a fitting shaft and against friction resistance force of a friction-providing part including a plate spring or the like at the final stage of the rotation of the first blade unit-driving unit, the plate spring being fitted to the fitting shaft, so that the first blade unit-driving unit is braked, and, at this point, one end part of the first blade unit-driving spring contacts a part to be pushed of the first brake member and controls the counterclockwise rotation of the first brake member, so that braking force to the first blade unit-driving unit acts on the first blade unit-driving unit larger and more surely. | 08-02-2012 |
| 20120219280 | FOCAL PLANE SHUTTER FOR CAMERAS AND DIGITAL CAMERA PROVIDED WITH THE SAME - A second blade group-driving mechanism includes second blade group-driving first member and second blade group-driving second member, only the second blade group-driving second member is rotated against elastic force of a blade group-driving spring while the second blade group-driving first member engages and is locked by a locking member at start of cocking operation of the cocking member to keep a second blade group covering an exposure opening, and the second blade group-driving first member is disengaged from locking member at final stage of cocking operation, so the second blade group-driving first member can be rotated by elastic force of a second blade group-cocking spring and the second blade group is made to open the exposure opening. Starting cocking operation of a focal plane shutter is possible irrespective of the length of time during which imaging information can be transferred from an image sensor to storage via an information-processing circuit. | 08-30-2012 |
| 20140248046 | FOCAL PLANE SHUTTER AND OPTICAL APPARATUS PROVIDED WITH SAME - A focal plane shutter includes a board including an opening; a leading blade and a trailing blade opening and closing the opening; a trailing blade actuator driving the trailing blade; a drive member driving the trailing blade by receiving driving force of the trailing blade actuator; and a buffering member abutting with the drive member in a state where the trailing blade recedes away from the opening, wherein the trailing blade actuator causes the drive member to move away from the buffering member from an abutting state therewith and to abut therewith again in a charging operation, and then starts an exposure operation. | 09-04-2014 |
| 20140376904 | FOCAL PLANE SHUTTER AND OPTICAL APPARATUS - A focal plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive source driving the shutter; a drive lever driven by the drive source; a drive arm connected to the drive lever and driving the shutter; a restriction portion defining a stop position of the drive lever; and a buffering member elastically deformable, wherein, when the drive lever drives, abuts the restriction portion, and stops, at least one of the drive arm and the shutter temporarily abuts the buffering member, is spaced from the buffering member, and stops. | 12-25-2014 |
| 20160026069 | Focal Plane Shutter and Camera - A focal plane shutter includes: a bottom board having an opening portion; blade members; main driving members biased in the direction of carrying out a shutter operation of the blade members; a setting member that sets the main driving member to a setting position prior to the shutter operation, against the biasing force; following driving members connected to the blade members, biased to follow the main driving members, and moved by being pushed by the main driving members at the shutter operation; and a constraining mechanism that constrains movement of the following driving member so that the blade members are held in the closed state. The constraining mechanism engages the following driving member biased to constrain the movement thereof, and also includes a constraining member that moves to release the constraint on the main driving member through the engagement thereof prior to the setting member completing the setting operation. | 01-28-2016 |
| 20160139492 | SHUTTER HOLDING MECHANISM - A shutter holding mechanism includes: a shutter substrate which is provided inside a camera body and in which a focal-plane type shutter unit is fixed; a pressing unit arranged between the camera body and a side of one end portion of the shutter substrate, the pressing unit pressing the shutter substrate to a side of another end portion of the shutter substrate relative to the camera body; and a damper unit arranged in a part on a side of the camera body corresponding to the side of the other end portion of the shutter substrate, which is a side opposite to a part where the pressing unit is arranged, in a direction along a travel direction of a shutter blade of the shutter unit, the damper unit absorbing movement of the shutter substrate pressed by the pressing unit. | 05-19-2016 |
