摘要:
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 to selectively record optical information passing through the shutter.
摘要:
A lens shutter comprises a shutter blades opening and closing lever (4) and an electrostrictive strain element (5) driving the lever (4). The arrangement being such that inertia forces acting on said lever (4) through engagement with said element (5) and vice versa are counterbalanced by each other, in order to eliminate variations of exposure caused by various positions of a camera. The basic portion of the electrostrictive strain element (5) is secured to a retaining member (6) supported rotatably on a shutter base plate (1) and the retaining member (6) may well be biased by a spring (8) to increase the inertia force of the electrostrictive strain element (5). Thereby, even if a shock is applied to the shutter from the outside, the shutter blades (2, 2ʹ) are not inadvertently opened and closed. The rotation of the retaining member (6) to rotate the opening and closing lever (4) in a wrong direction is prevented by an eccentric pin (9).
摘要:
In an aperture stop mechanism 10, two aperture blades 14 and 16 are arranged so as to overlap each other and form a single light passage opening 50 into which light utilized in imaging is introduced with the respective edge portions of the two aperture blades 14 and 16. A drive mechanism 22 drives the two aperture blades 14 and 16 in directions different from each other, whereby the aperture area of the light passage opening 50 is changed within a predetermined range. When the two aperture blades 14 and 16 are located at a minimum aperture position where the aperture area of the light passage opening 50 is minimum within the predetermined range, the two aperture blades 14 and 16 are provided so that the single light passage opening 50 surrounded by boundaries including eight straight lines is constituted of the respective edge portions of the two aperture blades 14 and 16.
摘要:
An imaging apparatus using a solid-state image sensor that reads out a signal of each pixel by an XY address method to capture an image includes a mechanical shutter configured to block light incident on a light receiving surface of the solid-state image sensor; and control means for simultaneously resetting the pixel signals for all rows in the solid-state image sensor to start exposure to the solid-state image sensor, closing the mechanical shutter after a predetermined exposure period is elapsed, and sequentially reading out the pixel signals for every row of the solid-state image sensor with the mechanical shutter being closed.
摘要:
A shutter device includes a movable shading module (1) and a movement control module (2) configured to control movement of the movable shading module (1). The movable shading module (1) includes a shading unit (30), a driving unit (40) and a signal measuring unit (20). The shading unit (30) includes two blades (302), and the movement control module (2) is configured to generate a control signal. The driving unit (40) is configured to receive the control signal and drive the two blades (302). The signal measuring unit (20) is configured to measure an operating status of the blades (302) feed it back to the movement control module (2) in real time. The movement control module (2) is configured to update the control signal based on the fed back operating status. This shutter device can overcome the problems of low exposure dose accuracy and light leaks arising from the use of existing shutters and provide various accurately-controlled exposure doses suitable for different applications.
摘要:
A lens module (100) including a base (110), a lens (120), a front cover (130), a first shielding plate set (140), a second shielding plate set (150), and a gasket (160) is provided. The lens is disposed on the base. The front cover is rotatably disposed above the base and the lens, and the front cover has a first through hole (131). Each of the first shielding plate set and the second shielding plate set is pivoted on the base. The second shielding plate set and the first shielding plate set interfere with each other. The gasket is fixed in the first through hole and coupled to the second shielding plate set. The gasket has a second through hole (162). When the base and the front cover rotate relative to each other, the gasket rotates with the front cover and drives the first shielding plate set and the second shielding plate set to limitedly swing.