184results about "Shutters" patented technology

An aperture unit having an optical axis is provided, which includes a fixed portion having a first surface and including a protrusion formed on the first surface, a guiding element movably connected to the fixed portion and including a through hole, a first blade movably connected to the guiding element and the fixed portion, and a driving assembly use for driving the guiding element to move for moving the first blade. The optical axis passes through the through hole. The first surface has a first accommodating space having a recessed structure to accommodate the guiding element, and the protrusion extends toward the first blade.

An optical element driving mechanism is provided, including a fixed part, a movable part, and a driving assembly. The fixed part includes a base. The base corresponds to an optical module. The movable part is connected to an optical element. The movable part is movable relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part. The base includes an accommodation portion, and the accommodation portion has a recessed structure.

A driving mechanism is provided, including a fixed part, a movable part connected to the fixed part, and a driving assembly configured to impel the movable part relative to the fixed part, so that the driving mechanism is switchable between an open state and a closed state. The fixed part has a plurality of holes. When the driving mechanism is in the open state, light propagates through the driving mechanism via the holes, and when the driving mechanism is in the closed state, the holes are blocked by the movable part.

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion used for connecting an optical element, a fixed portion, and a driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion.

A camera comprises a camera lens, a privacy shutter movable between a first position in which it obstructs the camera lens and a second position in which the camera lens is exposed, and a spring that biases the privacy shutter towards the first position. A piece of magnetic material is coupled to the privacy shutter, and an electromagnet is operable to hold the privacy shutter in the second position by acting on the piece of magnetic material. The camera may further comprise a switch located on the camera to deenergize the electromagnet.

An optical element driving mechanism is provided, which includes a movable portion, a fixed portion and a driving assembly. The movable portion is connected with an optical element. The movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion.

An image capturing apparatus capable of reducing exposure variation in opposite end areas of an image when photographing is performed with flash light emission while shortening a flash synchronization time. A system controller determines a shutter speed for flash light emission photographing. The system controller selectively executes first control for controlling a traveling speed of a front curtain of a shutter and a traveling speed of a rear curtain of the shutter to the same speed, and second control for controlling the traveling speed of the front curtain to be higher than the traveling speed of the rear curtain. Before flash light emission photographing is performed, the system controller determines which of the first control and the second control is to be adopted according to the shutter speed.

Imaging device to which an interchangeable lens (200) can be attached, wherein the interchangeable lens (200) includes an aperture (260) and an aperture control unit (261) configured to drive the aperture (260), the imaging device comprising: an imaging element (110) configured to reset the accumulated charge; a shutter (180) configured to block and open an optical path to the imaging element (110); a shutter control unit (181) configured to control the shutter (180); a control unit configured to command an imaging operation; and a controller (140) configured to control the aperture control unit (261) and the imaging element (110) according to the command from the operating unit, characterized in that the controller (140) is configured to detect a prediction time of an aperture operation of the aperture control unit (261); and to initiate a charge reset process of the imaging element according to the prediction time of the aperture operation in order to complete the charge reset process at or before completion of the aperture operation.

A camera device capable of securing a conductive path required for driving a lens module and a number of vanes. The camera device is provided with a lens driving device and a vane driving device. The lens driving device has a lens carrier that holds a lens body, a conductive front side plate spring that has an inner side portion fixed to the lens carrier, an outer side portion fixed to a fixed portion disposed outside the lens carrier, and a wrist portion that links the inner side portion and the outer side portion, and an FPC that has one end connected to the outside of the lens driving device. The vane driving device is mounted to the lens carrier and drives vanes disposed on the front side of the lens body. The one end of the FPC is electrically connected to the outer side portion of the front side plate spring, the inner side portion of the front side plate spring is electrically connected to the vane driving device, and the other end of the FPC is used to drive the lens carrier. The present invention also provides an electronic device.

A blade 100 for a variable aperture assembly comprising a base and a rotatable part wherein the blade comprises: a body portion 101; a first flexure 102 extending from the body portion, and a coupling

The utility model relates to the technical field of optical devices, in particular to a shutter assembly and a slit type large-format scanning camera, the shutter assembly comprises a film box, a slit scanning mechanism and a linear driving mechanism, and a photosensitive component is arranged in the film box; the gap scanning mechanism comprises a bearing part and a rigid insertion sheet; the bearing part is in guide fit with the film box; the rigid insertion sheet is inserted into the film box, two ends of the rigid insertion sheet are fixed on the bearing component, and a gap is formed in the rigid insertion sheet; the linear driving mechanism comprises a supporting part, a driving part and a transmission part, and the driving part is arranged on the supporting part; the transmission part is arranged on the supporting part and is in transmission fit with the driving part, and the transmission part is connected with the bearing part. According to the utility model, the driving part and the transmission part in the linear driving mechanism are matched to realize the rapid and slow linear motion of the bearing part, so as to drive the rigid insertion sheet to stably scan the photosensitive part and ensure that the light is irradiated on the photosensitive part in an accurate slit form, and the high-quality and high-resolution imaging effect can be obtained.

To provide a light quantity adjusting device capable of high-speed operation while keeping the strength of a driving ring.SOLUTION: A light quantity adjusting device includes: a base member 50 having a fixed aperture through which light passes and a plurality of cam groove portions; a plurality of diaphragm blades 10 arranged in a circumferential direction of the fixed aperture and forming a variable aperture through which the light passes; and a driving ring 20 that rotates the plurality of diaphragm blades 10 so as to change a size of the variable aperture by rotating in the circumferential direction of the fixed aperture and transmitting driving force to the diaphragm blades 10. In the light quantity adjusting device, a driving source portion 1, which rotationally drives the driving ring 20, is supported by a pressing member, a blade support portion of the driving ring 20 has a hole shape 23, and a radial support portion 26 is continuous around the entire circumference.SELECTED DRAWING: Figure 8

Disclosed herein are viewing systems configured for viewing an image of a biological object illuminated with light and a viewing device (e.g., loupes, glasses, etc.) and methods for operation thereof. The viewing device comprises a plurality of viewing modes: a white light mode, a fluorescent light mode, and an overlay mode, and a shutter that opens and closes in accordance with the viewing mode. An overlay image is an image of the biological object when the biological object is illuminated with both white light and fluorescent light, causing the overlay image to be an overlay of the white light image and the fluorescent light image. The disclosed systems and methods allow a user (e.g., a surgeon, medical staff, etc.) to preserve the ergonomics offered by eyewear while providing fluorescent viewing capabilities, particularly with visible fluorescent dyes.

The present disclosure relates to a novel liquid crystal assembly for use in multispectral imaging systems. In particular, the liquid crystal assembly includes an engineered polarizer and a liquid crystal. In various aspects, the liquid crystal assembly takes advantages of short-comings found in conventional polarizers and liquid crystals requiring complex temperature regulation.

An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed assembly, a movable part, a driving assembly, and a coupling assembly. The movable part is configured to be connected to an optical element. The movable part is movable relative to the fixed assembly. The driving assembly is configured to drive the movable part to move relative to the fixed assembly. The movable part is movable relative to the fixed assembly by the coupling assembly.

The utility model discloses a single lens reflex one-time imaging camera with a replaceable lens, which comprises a camera body and photographic paper arranged in the camera body, and further comprises a replaceable lens bayonet, a mechanical shutter system, a single lens reflex optical view finding system and an FDU instant imaging module, the camera further comprises an interchangeable lens, the interchangeable lens is connected with the camera body through an interchangeable lens bayonet, and the interchangeable lens bayonet is connected with the camera body through a clamping device. The single lens reflex optical framing system comprises a reflector assembly, a pentaprism structure and a viewfinder, the reflector assembly is arranged behind the replaceable lens bayonet, the position of the reflector assembly is controlled through a mechanical shutter system to achieve switching between framing and shooting, and light enters from the replaceable lens, is reflected to the pentaprism structure through the reflector assembly and is finally projected to the viewfinder; the mechanical shutter system is arranged behind the reflector assembly; according to the scheme, the universality of the camera is optimized, and a user can freely replace the lens according to different scenes and enjoy the convenience of instant imaging at the same time.

To provide a blade driving device that can prevent rebound of blades when they are stopped, while avoiding an increase in the thickness of the device in a direction along a driving shaft.SOLUTION: A blade driving device 1 comprises: a bottom board 10 that is provided with an opening S; blades 21-24 that are movable between closed positions and open positions; a rotational driving member 50 that is connected to the blades 21-24 and can rotate around a driving shaft 18 to move the blades 21-24 between the closed positions and open positions; a brake member 90 configured to be rotatable near the rotational driving member 50; and a brake pad 100 that is in slide contact with an outer peripheral surface 94A of the brake member 90 to prevent the rotation of the brake member 90 with the friction. The rotational driving member 50 has pushers 54, 55 configured to be brought into contact with the brake member 90 to push the brake member 90 before the end of at least one operation of an opening operation and a closing operation.SELECTED DRAWING: Figure 2

A variable aperture apparatus (32), a camera module (30), and an electronic device (100) are provided, and relate to the field of image shooting technologies. The variable aperture apparatus (32) includes: a base (1); a carrier (2); and a plurality of aperture blades (4) and a shutter blade (5). When the carrier (2) rotates relative to the base (1), the plurality of aperture blades (4) and the shutter blade (5) slide relative to the carrier (2), and rotate relative to the base (1); and movement positions of the plurality of aperture blades (4) include a first position and a second position, a light inlet hole (32a) enclosed by the plurality of aperture blades (4) becomes larger when the plurality of aperture blades (4) move from the first position to the second position, the shutter blade (5) completely blocks the light inlet hole (32a) at the first position, and the shutter blade (5) deviates from the light inlet hole (32a) at the second position. A global shutter is implemented through cooperation of the plurality of aperture blades (4) and the shutter blade (5).

The invention discloses a shutter capable of being opened and closed stably, and the shutter comprises a mounting frame which is provided with a first surface and a second surface which are opposite, and the mounting frame is provided with a window; the blade group is rotationally arranged on the first surface, and a guide groove is formed in the blade group; the rocking handle is rotationally arranged on the second face, a groove is formed in the second face, the rocking handle is provided with a special-shaped end, and the special-shaped end penetrates through the groove and is in sliding connection with the guide groove. The fixed end of the driving piece is fixed to the second face, and the output end of the driving piece is connected with the rotating end of the rocking handle and used for driving the rocking handle to rotate so that the special-shaped end can slide in the guide groove to drive the blade set to open and close the window. The connecting line from the rotating center of the rocking handle to the special-shaped end is L1, and the connecting line from the rotating connecting point of the blade group and the mounting frame to the special-shaped end is L2; when the blade group opens the window, the included angle between the L1 and the L2 is an acute angle, so that the position of the blade group can be fixed when the blade group is opened or closed or the window is closed, and the blade group is not switched and has good stability when the shutter is subjected to external high impact in the opening and closing state.

To provide a shutter release for a camera to provide expanded control functions on the camera.SOLUTION: Provided is a shutter release 10 for a camera having: a base body 12; an operation element 14 movably supported by the base body along an adjustment route between a stationary position and a terminal position; a spring element 16 for biasing the operation element in a direction of the stationary position; a magnetic field sensor 22 configured to generate an output signal which is the scale of a relative position of the operation element to the base body; and an evaluation unit 30 configured to receive the output signal from the magnetic field sensor, and connected to the magnetic field sensor. The evaluation unit is further configured to specify a relative speed and / or a relative acceleration of the operation element to the base body on the basis of the sequence of received output signals.SELECTED DRAWING: Figure 1

Several embodiments include a combined variable aperture and shutter device for a camera system. This combined device can be coupled to a lens assembly of the camera system. The combined variable aperture and shutter device can include one or more sets of blades arranged to provide a variable aperture as well as a shutter with a reduced stack height. For example, a single set of blades can be shaped such that rotating the set moves the blades between a fully open state, a medium state, and a closed state. In another example, one set of blades can provide different aperture sizes, while a second set provides a shutter function.

An optical system is provided, including an optical module, a fixed part, a movable part for holding an optical module, and a flexible member. The flexible member movably connects the movable part to the fixed part to suppress the vibration of the optical system at a first frequency.

The purpose of the present invention is to provide a technology effective for removing unnecessary light incident on a shutter device. A binder resin is used as an A component, a polyvinyl acetal resin is used as an A1 component, a black material is used as a B component, and a composite of a black pigment and a resin is used as a B1 component. Shutter blades 11-14 and 21-24 used for a focal-plane shutter 101 each have an antireflection film 40 on the end surface thereof. The antireflection film 40 is formed of a resin composition, and contains at least the A component and the B component. The A component contains the A1 component. The B component contains the B1 component having an average particle diameter of 2-6 μm. The mass ratio of the B component to the A component is 7-14.

To provide a blade driving device having improved durability.SOLUTION: The blade driving device includes a base plate 13 having a first support shaft and a second support shaft 61 arranged in parallel with each other. The blade drive device is attached to the base plate and has a blade that opens and closes the opening of the base plate. The blade driving device has a driving rotor 38 rotatably attached to the first supporting shaft and provided with an arm connected to the blade. The blade driving device has a first braking plate 51 rotatably attached to the first support shaft and having a pair of wall parts arranged on the moving locus of the arm across the arm. The blade driving device has a second braking plate 67 rotatably attached to the second support shaft and connected to the first braking plate. The blade driving device has a friction plate 66 which is provided in contact with the second braking plate and gives frictional resistance to the second braking plate.SELECTED DRAWING: Figure 5

The present invention attempts to provide a feature effective for removing unnecessary light incident on an optical apparatus. An A component is a binder resin, an A1 component is a polyvinyl acetal resin, a B component is a black material, and a B1 component is a composite of a black pigment and a resin. Shutter blades 11-14 and 21-24 used for a focal plane shutter 101 have an antireflection film 40 on end faces thereof. The antireflection film 40 is formed from a resin composition, and includes at least the A component and the B component. The A component includes the A1 component. The B component includes the B1 component, which has an average particle diameter of 2 to 6 μm. The mass ratio of the B component to the A component is 7 to 14.

Electronic equipment (1), comprising: - a housing (100), - an image capture device (20), - a movable shutter (10) mounted movably such that, when the movable shutter (10) is in a working position, the image capture device (20) views the outside of the housing (100), and when the shutter (10) is in a rest position, the movable shutter (10) masks the outside of the housing for the image capture device (20), and - a light source (30). According to the invention, said movable shutter (10) includes an optical device (12) such that, when the movable shutter (10) is in its rest position, the optical device (12) is arranged to guide light from the light source (30) to the image capture device (20). FIGURE IN ABRIDGED DIAGRAM: Fig. 1

A light-shielding film wherein front and back thereof can be distinguished visually. A glossiness degree against a light having an incident angle of 60° is (A), reflectance against a light having a wavelength of 550 nm is (B) and an L value in CIELAB color space system by the SCE method is (C). A light-shielding film is for obtaining a light-shielding member includes at least a first and a second light-shielding layer in which an outermost surface of each of the layers have the (A), (B) and (C) of 2% or less, 4.5% or less and 26 or less, respectively. Between the outermost surface of the first light-shielding layer and the outermost surface of the second light-shielding layer, a difference of (C) is 4 or more and a difference of optical densities are 0.5 or more and 1.5 or less.

Provided are a blade drive device, a camera module, and a camera-equipped device, each of which can be reduced in size and in height and can have improved reliability. This blade drive device is capable of adjusting an amount of light incident on an optical element through an opening, and comprises: a fixed body; a movable body that is rotatable with respect to the fixed body; support parts that rotatably support the movable body with respect to the fixed body; a drive part that rotates the movable body; and a diaphragm blade that opens and closes the opening in conjunction with the rotation of the movable body. The support parts are disposed at a plurality of rotationally symmetric locations, and the drive part is disposed between the support parts adjacent to each other.