275results about "Shutters" patented technology

The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element to move relative to the fixed portion in a second moving dimension, and the first moving dimension and the second moving dimension are different.

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.

A driving mechanism for moving an optical element is provided, including a fixed part, a movable part, movably connected to the fixed part, a positioning structure, and a driving assembly. The optical element is disposed on the movable part, and the positioning structure is formed on the fixed part to restrict the movable part in a specific position relative to the fixed part. The driving assembly is configured to drive the movable part to move relative to the fixed part.

An optical element driving mechanism is provided, including a movable part, a fixed part, and a driving assembly. The movable part is used for connecting an optical element. The movable part is movable relative to the fixed part. The driving assembly is used for driving the movable part to move relative to the fixed part. The driving assembly is used for driving the movable part to move in a first dimension.

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.

According to one embodiment, a camera module includes an optical system, an imaging device, and a liquid crystal panel. The optical system includes at least one or more lenses. The liquid crystal panel includes an electrode for forming an aperture pattern which makes light incident on the imaging device, the liquid crystal layer, and a driver driving the liquid crystal layer. To allow light transmitted through at least one lens included in the optical system to be made incident, the liquid crystal panel is arranged between the lens and the imaging device.

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.

A camera module is provided. The camera module includes a lens assembly, a blade set disposed on an upper surface of the lens assembly and adjusting a diameter of a lens incident hole, a rotational drive part connected to the blade set and controlling movement of blades through a rotary motion, a blade connecting part connected to one side of the rotational drive part and rotating the rotational drive part, a linear moving part connected to the blade connecting part and accommodating a blade drive magnet on its outer side and a blade drive coil disposed opposite to the blade drive magnet, wherein in accordance with a current applied to the blade drive coil, the camera module adjusts a diameter of the lens incident hole by linearly moving the linear moving part within a blade drive aperture, which is disposed on a first side of a side frame.

A variable aperture module includes a blade assembly including movable blades, a positioning element including positioning structures and a driving part including a rotation element. The movable blades are disposed around an optical axis to form a light passable hole with adjustable size for different hole size states and each have an inner surface to define the contour of the light passable hole in each hole size state. The positioning structures correspond to the movable blades. The rotation element is rotatable with respect to the positioning element and is configured to rotate the movable blades to adjust a size of the light passable hole. There are matte structures disposed on each inner surface. Each matte structure is single structure extending towards the optical axis, such that at least part of the contour of the light passable hole has an undulating shape at least in several hole size states.

An image pickup apparatus includes an image sensor, an optical filter, a holding member configured to hold the optical filter, a driving unit configured to move the holding member, a grip portion configured to be gripped by a user, and a light blocking member configured to control blocking or opening of an image pickup range. The driving unit moves the optical filter between (i) a first position at which the optical filter is inserted into the image pickup range and (ii) a second position at which the optical filter is retracted from the image pickup range in a direction from the first position toward the grip portion. The optical filter is located on a side closer to the image sensor than the light blocking member.

Video display systems comprising a video display and a camera assembly are shown and described. In one example, video cameras may be stowed in and deployed from a compartment proximate the upper surface of the display and configured to deploy in an arc-like motion and for rotation about a center of the video camera housing itself. In other examples, video cameras may be aligned with openings in the frame of the television screen and operatively connected to shutter plates that selectively admit light to or block light from the camera. In a further example, video cameras may be provided on motorized mounts that are attached to the frame to collect multiple images for video processing tasks to enhance the video image in a variety of ways.

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 actuator assembly comprising a first part, a second part that is moveable relative to the first part, and one or more actuating units. Each actuating unit is configured to apply an actuating force to the second part capable of moving the second part relative to the first part, wherein at least a first actuating unit comprises at least a first SMA element configured, on actuation, to generate an input force so as to give rise to the actuating force. The first SMA element is slack when not actuated, and the actuator assembly is configured such that the first SMA element, when slack, is constrained from entering a restricted area.

An optical system is provided and includes a first optical element driving mechanism, which includes a first fixed assembly, a first movable assembly, and a first driving assembly. The first movable assembly is configured to be connected to a first optical element, and the first movable assembly is movable relative to the first fixed assembly. The first movable assembly includes a first movable element and a second movable element. The first driving assembly is configured to drive the first movable assembly to move relative to the first fixed assembly. The first fixed assembly and the first movable assembly are arranged along a main axis, and the first driving assembly is configured to drive the second movable element to move along a first axis, thereby driving the first movable element to move around the main axis.

To increase the degree of freedom related to adjustment of travel curve and curtain speed in a shutter device.SOLUTION: A shutter device has: a blade unit (2); a driving member (11) that is attached to the blade unit and drives the blade unit; deceleration means (15, 17, 21) that decelerate power from a motor (19); first connection means (15) that is connected with the deceleration means; second connection means (13) that is attached to the driving member at one end and attached to the first connection means at the other end; first position detection means (23) that detects passing through a predetermined position on a movement locus of the driving member or the first connection means; and second position detection means (25) that detects a relative difference from a result of detection performed by the first position detection means. The drive of the motor is controlled according to results of detection performed by the first detection means and second detection means.SELECTED DRAWING: Figure 1

A blade drive device (101) comprises: a rotary member (3); a plurality of blade members (2) that revolve in conjunction with the rotation of the rotary member (3); and a drive mechanism (DM) that rotates the rotary member (3). The size of an aperture (AP) formed by the plurality of blade members (2) changes by each of the plurality of blade members (2) revolving with the rotation of the rotary member (3). The drive mechanism (DM) is configured so as to have a shape-memory alloy wire (SA) and a drive body (7) capable of pivoting. The drive body (7) has a movable-side wire fixing part (7W) for fixing one end of the shape-memory alloy wire (SA), and an action part (7P) for rotating the rotary member (3). The distance (DS1) between the pivot center (PC) of the drive body (7) and the action part (7P) is greater than the distance (DS2) between the pivot center (PC) and the movable-side wire fixing part (7W).

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.

A 3D scanner and a method of operating same are provided. The scanner comprises a light projector unit for projecting a structured light pattern and a set of cameras. The set of cameras includes one or more rolling shutter cameras for capturing data conveying a set of images having sensor surfaces defining a plurality of pixel lines. One or more processors are provided for sending control signals to the light projector unit to intermittently project the structured light pattern. In particular, the structured light pattern is projected when the individual pixel lines in the plurality of pixel lines are concurrently exposed to light and is otherwise either attenuated or turned off. In some implementations, a rolling shutter geometric camera is included, and the light projector unit includes a light source emits light with wavelengths in a specific range. The rolling shutter geometric camera may allow light with wavelengths in the specific range to pass through and may substantially attenuate other wavelength ranges. Optionally, a rolling shutter color camera may be included having an LCD shutter configured to intermittently permit light to pass onto sensors when the structured light pattern is projected onto the surface of the object. The rolling shutter color camera may also at least partially block light with wavelengths in the specific wavelength range.

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.

An aperture module includes a rotating plate, seated on a base having a center opening, configured to rotate about an optical axis; an aperture driver including a moving member coupled to the rotating plate, wherein the moving member is configured to linearly reciprocate; and a plurality of blades stacked as at least two stages on the rotating plate, disposed non-overlapping to each other on the respective stages, and configured to form a variable light incident hole interlocked with rotation of the rotating plate. A cusp of adjacent ones of the blades has an extending corner portion generated when straight lateral sides of the adjacent ones of the blades meet each other.

An imaging device that includes a shutter unit including a shutter adjusting an amount of subject light incident on an image sensor through an imaging optical system. The shutter unit being mounted on a frame. The at least three or more elastic members are disposed on an outer periphery of a contour of the shutter unit in a front view and press the shutter unit from the frame to support the shutter unit, each of the at least three or more elastic members is elastically deformed in a first direction that is a direction in which each of the at least three or more elastic members presses the shutter unit from the frame and a second direction that is a direction perpendicular to the first direction, and the first directions of the at least three or more elastic members intersect with each other at a specific spot inside the contour.