96results about "Shutters" patented technology

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.

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.

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 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.

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.

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 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.

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.

A privacy device includes a shutter moveably mounted along a first axis to a frame supporting a camera having a lens. A closing solenoid is supported by the frame and including a closing core. Control circuitry is coupled to the closing solenoid to cause the shutter to cover the lens. An opening solenoid that includes an opening core may be used to move the shutter to an open position to uncover the lens.

To provide a blade driving device that can open and close an opening at a high speed.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 has a driving pin 54 connected to the blades 21, 22 and a gear part 55 provided with a plurality of teeth along a circumferential direction, and can rotate around a driving shaft 15 to move the blades 21, 22; a rotational driving member 60 that has a driving pin 64 connected to the blades 23, 24 and a gear part 65 provided with a plurality of teeth along the circumferential direction, the plurality of teeth meshing with the teeth of the gear part 55 of the rotational driving member 50, and can rotate around a driving shaft 16 to move the blades 23, 24; and an electromagnetic coil unit 80 that rotates the rotational driving member 50.SELECTED DRAWING: Figure 2

Provided are a blade drive device, a camera module, and a camera-equipped apparatus which are capable of achieving miniaturization and height reduction and improving reliability. The blade drive device which is capable of adjusting the amount of light entering an optical element through an opening comprises: a fixed body having a coil; a movable body having a magnet and capable of rotating with respect to a magnet engagement piece fixed body; and an aperture blade that opens and closes a magnet engagement piece opening in conjunction with the rotation of a magnet engagement piece movable body. The magnet engagement piece movable body has a protrusion that restricts contact between a magnet engagement piece magnet and a magnet engagement piece coil. A magnet engagement piece protrusion can come into contact with the magnet engagement piece fixed body through a space formed in the magnet engagement piece magnet.

Various embodiments disclosed herein include mechanical iris assemblies, as well as camera modules and devices that incorporate these mechanical iris assemblies. The mechanical iris assemblies described herein include a stator piece, a rotor piece, a set of blade elements, and an actuator arrangement. The actuator arrangement may include a voice coil actuator having at least one magnet carried by the stator piece and at least one coil carried by the rotor piece. The mechanical iris assembly includes a set of springs configured to carry current between the stator piece and the rotor piece to power the coil or coils carried by the rotor piece.

A shutter device and a camera device. The shutter device includes: a base plate including an opening; a blade unit configured to switch the state of the opening; a drive member configured to drive the blade unit; a motor; a reducer configured to reduce the power from the motor; a first connector engaged with the reducer; a second connector attached at one end to the drive member and at the other end to the first connector; a first position detector configured to detect a predetermined position in a movement trajectory passing through the drive member or the first connector; and a second position detector configured to detect a relative difference with the first position detector. The blade unit switches the state of the opening from a closed state to an open state by continuous rotation of the first connector. The drive of the motor is controlled based on the detection results of the first and second position detectors.

The objective is to provide a blade drive device, camera module, and camera mounting device that can achieve miniaturization and a low profile while improving reliability. [Solution] The blade drive device according to the present invention is a blade drive device capable of adjusting the amount of light incident on an optical element through an aperture, and comprises a fixed body, a movable body rotatable with respect to the fixed body, a drive unit for rotating the movable body, aperture blades that open and close the aperture in conjunction with the rotation of the movable body, and a cover that covers the aperture blades from the light-receiving side in the optical axis direction, the cover having a blade contact portion that protrudes toward the imaging side in the optical axis direction and can come into contact with the aperture blades.

A blade drive device is provided. The blade drive device includes a base plate having a first support shaft and a second support shaft disposed parallel to each other. The blade driving device is provided with a blade which is installed on the base plate and opens and closes the opening part of the base plate. The blade drive device has a drive rotor rotatably attached to the first support shaft, and the drive rotor has an arm connected to the blade. The blade drive device is provided with a first brake plate rotatably attached to the first support shaft, and the first brake plate has a pair of wall portions disposed across the arm on the movement trajectory of the arm. The blade driving device is provided with a second brake plate which is rotatably installed on the second supporting shaft and is connected with the first brake plate. The blade drive device has a friction plate provided so as to be in contact with the second brake plate, and the friction plate applies frictional resistance to the second brake plate.

An imaging lens and electronic device are disclosed. The imaging lens includes multiple optical lenses, a single-piece molded light-blocking plate, and a lens barrel. The single-piece molded light-blocking plate corresponds to the optical lenses. The lens barrel has a circular light-transmitting aperture corresponding to the optical lenses and the single-piece molded light-blocking plate. The single-piece molded light-blocking plate has a central opening corresponding to the lens barrel and the optical lenses. The central opening defines a maximum opening diameter. The single-piece molded light-blocking plate includes multiple light-blocking structures arranged around the central opening. The number of light-blocking structures is three to ten. The center of each light-blocking structure is closer to the center of the central opening than its two ends. The two ends of each light-blocking structure extend towards the maximum opening diameter of the central opening. This facilitates achieving the desired imaging result.

A moving shutter mechanism (10) for a camera module (1a) includes: a plurality of lenses (20a, 20b, 20c) arranged in a row; an image sensor (30); and a prism (40) that directs a light incident from one of the plurality of lenses (20a, 20b, 20c) to the image sensor (30). The prism (40) is arranged so as to be linearly movable to be located behind any one of the plurality of lenses (20a, 20b, 20c). The moving shutter mechanism (10) comprises: at least one shutter plate (100a, 100b) arranged movably along a linear travel path (S) defined between the plurality of lenses (20a, 20b, 20c) and the prism (40) and overlapping any one of the plurality of lenses (20a, 20b, 20c); at least one first magnetic element (200a, 200b) mounted on the at least one shutter plate (100a, 100b); and at least one second magnetic element (300) mounted on at least one prism holder (700a, 700b). The first magnetic element (200a, 200b) and the second magnetic element (300) are configured to create a magnetic repulsion force. The moving shutter mechanism (10) is configured such that when in operation, due to the magnetic repulsion force, the shutter plate (100a, 100b) is moved in a direction opposite to the moving direction of the prism (40) so that the shutter plate (100a, 100b) is not in front of the prism (40). A product (1) includes a camera module (1a), wherein the camera module (1a) comprises the moving shutter mechanism (10).

The invention relates to the technical field of shutter driving, in particular to an SMA alloy wire shutter driving structure which comprises a driving shaft arranged around a shutter window, the driving shaft is used for driving a shutter blade to move, and the SMA alloy wire shutter driving structure is characterized by being provided with a first fixing point and a first SMA alloy wire, one end of the first SMA alloy wire is connected with the first fixing point, and the other end of the first SMA alloy wire is connected with the second fixing point. And the other end of the first SMA alloy wire is connected with the driving shaft. A first SMA alloy wire is adopted as a driving element, one end of the first SMA alloy wire is fixed to a first fixing point, and the other end of the first SMA alloy wire is connected to a driving shaft. The first SMA alloy wire can be controllably contracted and expanded by controlling the power-on and power-off of the first SMA alloy wire, so that the shutter blade is accurately driven to be opened and closed. The working stability of the shutter is improved, and the calorific value of the system is effectively reduced.

The invention provides a blade driving device. This blade drive device is provided with: a base having an opening; a first blade that is rotatably attached to the base; a second blade that is rotatably attached to the base; an actuator which is installed on the base; and a drive arm attached to a drive shaft of the actuator. The drive arm has an arm plate extending radially from the drive shaft. The drive arm has a first pin protruding from one surface of the arm plate, and the first pin is inserted into the guide hole of the first blade. The drive arm has a second pin protruding from the other surface of the arm plate, and the second pin is inserted into the guide hole of the second blade.

The present invention comprises: a base; a housing disposed at one side of the base; a lens barrel disposed inside the housing; a cover disposed at one side of the housing; a first substrate disposed at the other side of the base; an image sensor which is installed on the first substrate, and disposed below the lens barrel; a diaphragm set which is movably supported inside the housing and which adjusts the amount of light incident to the lens barrel; a first drive unit comprising a first coil and a first magnet which enable the lens barrel and the diaphragm set to move together in the optical axis direction; and a second substrate which is attached to the housing and comprises a plurality of terminals which protrude to the outside as a result of the drive of the first drive unit, wherein the diaphragm set has a second drive unit for driving the diaphragms disposed therein, and the terminals are also connected to the second drive unit.

The present invention comprises: a base; a housing disposed at one side of the base; a lens barrel disposed inside the housing; a cover disposed at one side of the housing; a first substrate disposed at the other side of the base; an image sensor which is installed on the first substrate, and disposed below the lens barrel; a diaphragm set which is movably supported inside the housing and which adjusts the amount of light incident to the lens barrel; a first drive unit comprising a first coil and a first magnet which enable the lens barrel and the diaphragm set to move together in the optical axis direction; and a second substrate which is attached to the housing and comprises a plurality of terminals which protrude to the outside as a result of the drive of the first drive unit, wherein the diaphragm set has a second drive unit for driving the diaphragms disposed therein, and the terminals are also connected to the second drive unit.