412results about "Camera diaphragms" patented technology

The invention provides an aperture driving motor, a camera module and electronic equipment. The aperture driving motor comprises a base assembly which is provided with an accommodating space; at least one part of the rotating carrier is movably arranged in the accommodating space, the rotating carrier is provided with an accommodating cavity, one end, close to the bottom surface of the base assembly, of the rotating carrier is provided with a mounting opening, the rotating carrier is further provided with an aperture opening and a plurality of sliding grooves, and the sliding grooves are formed in the circumferential direction of the aperture opening at intervals; the blade assembly is movably arranged in the containing cavity, the blade assembly comprises a plurality of blade bodies, mounting protrusions are arranged at the two ends of each blade body respectively, one mounting protrusion is rotationally connected with the base assembly, and the other mounting protrusion extends into the sliding groove and can move along the sliding groove; and the driving assembly is arranged in the circumferential direction of the rotating carrier. The problem that in the prior art, the aperture adjusting range of a camera device is small is solved.

An optical system includes a light-receiving plane, a lens group, a pixel-based diaphragm, and a driving unit. The lens group is configured to direct an incident light to the light receiving plane. The pixel-based diaphragm is at an aperture stop of the lens group. The pixel-based diaphragm includes a first substrate coated with pixelated electrodes; a second substrate coated with an electrode; and an active medium layer between the first substrate and the second substrate. The driving unit is electrically coupled with the pixel-based diaphragm and configured to control the pixel-based diaphragm to have a first light transmitting pattern at a first time duration and a second light transmitting pattern at a second time duration, wherein the first light transmitting pattern is different from the second light transmitting pattern.

An imaging lens system includes a first lens, a second lens, a third lens having negative refractive power, a fourth lens, a fifth lens, and a sixth lens, disposed in order from an object side in a direction of an imaging plane, wherein one or more of the first to sixth lenses has a refractive index of 1.8 or greater, and has a refractive index temperature coefficient (10−6 / ° C.) of 3 or greater.

The invention relates to an aperture structure, in particular to a high-stability variable aperture structure and photographic equipment, which comprises a fixing assembly, the fixing assembly comprises a fixing seat and a fixing cover, and a rotatable turntable and a plurality of aperture blades are mounted between the fixing seat and the fixing cover. The aperture blades are movably connected between the rotating disc and the fixing assembly through a guide structure, the fixing assembly is provided with a limiting concave part, the rotating disc is provided with a limiting groove, and the aperture-variable adjusting hole a is defined by the aperture blades. The rolling piece is arranged between the fixing assembly and the rotating disc in a point contact mode on the rotating disc, so that the rotating disc reduces rotating friction and improves rotating efficiency through the point-contact rolling piece, the rolling piece supports the rotating position of the rotating disc in a point contact mode, and the zero-clearance matching effect is achieved; the stable opening and closing of the aperture blades benefit from the zero-clearance stable rotation of the turntable, thereby facilitating the improvement of the photographing and imaging effect of a user, and improving the photographing quality.

The present invention relates to a variable aperture device for a camera module. The device comprises: a base having a base aperture and a pair of blade guides; a pair of main blades guided by the blade guides; a pair of supplemental blades guided by the blade guides; a cover that is fixed to the base and has a cover aperture; and an actuator for moving the main blades and the supplemental blades relative to the base. Each of the main blades has a respective notch. The notches collaboratively define a central aperture and a fixed aperture. Each of the supplemental blades has a respective notch. The notches collaboratively define a minimum aperture and a maximum aperture.

The invention relates to an aperture structure, in particular to an elastic anti-backlash variable aperture structure and photographic equipment, which comprises a fixing assembly, the fixing assembly is provided with a turntable and an aperture blade, the aperture blade is driven between the turntable and the fixing assembly through a guide structure, and the fixing assembly is provided with an elastic deformation piece. The elastic deformation part abuts against the fixing assembly and the aperture blade so as to limit the rotation position of the aperture blade. The elastic deformation piece is installed on the fixing assembly, the elastic deformation piece abuts against the aperture blade, the rotation position of the aperture blade is limited, the aperture blade is kept in the pressed state in the direction of the acting force under the influence of the elastic acting force of abutting contact, and therefore the aperture blade cannot shake easily at the position of the installation gap; therefore, the movement of the aperture blade can become more stable, noise generated by gap friction collision is reduced, abrasion to the mounting position is reduced, and the aperture adjustment precision is guaranteed, so that the quality of photographing output of photographic equipment is guaranteed, and convenience is brought to a user.

The embodiments of the present invention are directed to providing a diaphragm module, and a camera module including the same, capable of reducing magnetic interference between an AF magnet and a ring magnet. In addition, according to the embodiments, the arrangement of coils included in the diaphragm module can be diversified.

The present disclosure relates to the technical field of camera modules. Specifically provided are a variable aperture and a camera module. The variable aperture includes a housing, a rotary member rotatably connected to the housing, a driving member fixedly connected to the housing and multiple blades. Each of the multiple blades is rotatably connected to the rotary member and is slidably connected to the housing. The multiple blades enclose to form an aperture hole with an adjustable bore diameter. A guide groove is disposed on one of each of the multiple blades and the housing, and the other of each of the multiple blades and the housing is connected to a guide column. The guide column is inserted into the guide groove. An outer diameter of the guide column is not less than a groove width of the guide groove.

An imaging lens driving module includes a lens carrier, an imaging lens assembly, a first frame element, a variable aperture element, a circuit board, a flexible wire plate, a first driving element and a second driving element. The imaging lens assembly is disposed in the lens carrier. The imaging lens assembly is disposed on a first rail of the first frame element via a first ball element. The variable aperture element is disposed on the lens carrier. The circuit board is disposed on an image side of the imaging lens assembly. The flexible wire plate is coupled to the circuit board and the lens carrier. The first driving element is for rotating blades of the variable aperture element for enlarging or shrinking an aperture hole. The second driving element is for driving the lens carrier to move along a first direction.

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.

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.

The present invention provides an aperture driving apparatus, a camera apparatus, and an electronic device. The aperture driving apparatus comprises: a base assembly, the base assembly having an accommodating cavity; a rotating body, at least a part of the rotating body being movably arranged in the accommodating cavity, a circumferential outer side wall of the rotating body being provided with a driving slot extending in the circumferential direction, and two ends of the driving slot in the length direction having a height difference in the axial direction of the rotating body; a spring assembly, at least a part of the spring assembly being arranged on the base assembly, and at least a part of the spring assembly being compressible along the axial direction of the rotating body; an abutting assembly, the spring assembly being drivingly connected to the abutting assembly and driving the abutting assembly to move along the axial direction of the rotating body, the abutting assembly having an abutting end, and at least a part of the abutting end extending into the driving slot and driving the rotating body to rotate; and a plurality of aperture blades, the plurality of aperture blades being arranged around the circumferential direction of the rotating body. The present invention solves the problem in the prior art of poor performance of aperture drive motors.

A controller and driving device for a camera aperture, and an electronic device, are provided. The controller includes: a signal processing circuit configured to generate a detection position value corresponding to the current position of the aperture based on a first detection signal and a second detection signal received from a first position sensor and a second position sensor, respectively, the first position sensor and the second position sensor being configured to detect the aperture position; a control circuit configured to set an interval between the first aperture position and the second aperture position as a plurality of control intervals, and, upon receiving a command to change the aperture position, to perform a corresponding control operation on each of the plurality of control intervals based on the detection position value to control the movement operation of the aperture; and a driving circuit configured to generate a driving current and provide the generated driving current to a coil, the coil being configured to drive the aperture under the control of the controller.

The utility model belongs to the technical field of camera shooting, and discloses an aperture device, a camera shooting module and electronic equipment, the aperture device comprises a housing, a supporting member, an aperture structure and a driving member, the housing is provided with an accommodating groove and a housing through hole communicated with the accommodating groove; the supporting piece is arranged in the accommodating groove; the aperture structure is movably arranged in the containing groove, at least part of the aperture structure is located on the side, facing the shell through hole, of the supporting piece, the aperture structure is provided with a plurality of aperture holes with different apertures, and the shell through hole can be collinear with the axis of any aperture hole; the driving end of the driving piece is connected to the aperture structure and configured to drive the aperture structure to move relative to the shell, and the multiple aperture holes are formed in the circumferential direction of the aperture structure at intervals. The aperture device, the camera module and the electronic equipment provided by the utility model can have lower cost and longer endurance.

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 application provides a variable aperture, a camera assembly and an electronic device. The variable aperture comprises a plurality of blades, a fixed seat, a rotating disc, a balance part and a driving part. The outer side is provided with inclined teeth. The driving part comprises a driving coil, a driving magnet and an inclined gear. The driving coil surrounds the outer periphery of the driving magnet. The inclined gear is fixed to the driving magnet. The driving coil can generate a first magnetic force or a second magnetic force with the driving magnet when electrified. The driving coil is fixedly connected with the fixed seat. The fixed seat is sleeved on the outer side of the rotating disc. The inclined gear is engaged with the inclined teeth. The through hole of the rotating disc and the fixed through hole constitute a light passing hole. The plurality of blades are rotationally connected to the surface of the fixed seat and surround a light adjusting hole. The first magnetic force and the second magnetic force can push the driving magnet to move along the optical axis direction of the light passing hole with the inclined gear, so that the inclined teeth push the rotating disc to rotate clockwise or counterclockwise along the optical axis of the light passing hole relative to the fixed seat, so as to drive the plurality of blades to rotate and realize the adjustment of the size of the light adjusting hole.

An optical system is provided, including a first movable part for connecting an optical element; a first base, wherein the first movable part is movable relative to the first base; and a first driving assembly for driving the movable part to move relative to the first base. The optical system further includes a light quantity control mechanism for controlling the quantity of light entering the optical element. The light quantity control mechanism further includes a base seat and a light quantity control assembly at least partially movable relative to the base seat. The optical system further includes a second driving assembly for controlling the light quantity control assembly.

An optical system according to an embodiment of the present invention comprises first to third lens groups arranged along an optical axis, wherein the first lens group has positive (+) refractive power, the second lens group has positive (+) refractive power, the third lens group has negative (-) refractive power, the first lens group includes a prismatic lens, the first lens group and the second lens group are fixed groups, and the third lens group is a movable group.

A camera module according to an embodiment of the present invention comprises: an imaging element; and a liquid crystal panel. The liquid crystal panel includes an opening disposed at a position for causing light to enter the imaging element, a liquid crystal layer disposed at a position overlapping the opening, an electrode disposed at a position overlapping the liquid crystal layer, and a driver that drives the liquid crystal layer by applying a voltage to the electrode. The driver drives the liquid crystal layer on the basis of a first control value, and drives the liquid crystal layer on the basis of a second control value. A first image captured by driving the liquid crystal layer on the basis of the first control value is used for calculating the distance to an object having a first luminance. A second image captured by driving the liquid crystal layer on the basis of the second control value is used for calculating the distance to an object having a second luminance.

An optical element driving mechanism is provided, including a movable part, a fixed part, and a driving assembly. 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 par. The fixed part includes an outer frame and a base.

This application relates to a position detection device, comprising: a first Hall element; a second Hall element; a differential amplifier configured to generate a differential voltage by differentially amplifying a first Hall voltage generated by the first Hall element and a second Hall voltage generated by the second Hall element; a summing amplifier configured to generate a summed voltage by summing the first Hall voltage and the second Hall voltage; a comparator configured to compare a reference voltage with the differential voltage to generate an error voltage; and a current converter configured to generate a bias current supplied to the first Hall element and the second Hall element based on the error voltage, wherein the device is configured to detect the position of a detected object based on the summed voltage.

The utility model relates to the technical field of photographic equipment, and discloses a fast-assembly type aperture base multi-point butt joint assembly which comprises an installation pad, the outer wall of the installation pad is fixedly connected with a limiting column, the outer wall of the installation pad is detachably connected with an installation base, and the interior of the installation base is slidably connected with a pressing rod. A rotating plate is fixedly connected to the bottom of the pressing rod, a rotating column is fixedly connected to the inner wall of the rotating plate, a spring is fixedly connected to the outer wall of the rotating plate, a fixing column is arranged on the inner wall of the spring in a sleeving mode, a sliding groove is formed in the outer wall of the limiting column, and a limiting groove is formed in the outer wall of the limiting column; the outer wall of the mounting pad is fixedly connected with a sealing assembly used for sealing. According to the utility model, the rapid disassembly and assembly between the aperture and the mounting base are realized by adopting a multi-point positioning rapid butt joint structure, so that the camera shooting equipment can rapidly adapt to various shooting environments, and flexible response can be realized under the condition that the aperture needs to be replaced.

The application provides a variable aperture, a camera assembly and an electronic device. The variable aperture comprises a plurality of blades, a base, a cover, a rotating support, a fixing frame and a driving part. The rotating support comprises a guide chute. The driving part comprises a driving coil, a driving carrier, a sliding pin and a driving magnet. The driving coil is sleeved with the outer periphery of the driving carrier. The sliding pin is arranged in the driving carrier. The driving carrier is sleeved with the rotating support. The sliding pin is slidingly connected in the guide chute. The fixing frame is sleeved with the rotating support. The driving magnet is connected with the fixing frame and opposite to the driving coil. The base and the rotating support form a first light passing hole. The plurality of blades are rotationally connected with the fixing frame and the rotating support. The plurality of blades surround a light adjusting hole. The driving coil is electrified. The driving magnet can generate a driving magnetic force to push the driving coil and the driving carrier to move along the optical axis direction of the variable aperture. The sliding pin is slidingly pushed in the guide chute to drive the rotating support to rotate the plurality of blades to adjust the aperture of the light adjusting hole.

An information processing apparatus, comprising: an acquisition unit, configured to acquire a diaphragm (Fig. 1; 204) value of a lens (Fig. 1; 205) of an imaging apparatus (Fig. 1; 100); and an output

A variable aperture assembly is provided. For example, a variable aperture assembly comprises a piezoelectric annular bending disc, a polymer disc coupled to the bending disc, a cover glass coupled to the polymer disc, and a light absorptive fluid contained in a space between the polymer disc and the cover glass. The bending disc is selectively deformable when a voltage is applied. The polymer disc has a convex portion curved toward the cover glass. An area of contact between the convex portion and the cover glass defines an optical aperture. A size of the optical aperture is controlled by controlling a size of the area of contact between the convex portion and the cover glass. The size of the area of contact between the convex portion and the cover glass is controlled by controlling the voltage applied to the bending disc.

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 provides a blade driving device, a camera module and a camera mounting device which can make a movable body rotate in a stable posture relative to a fixed body. The blade drive device is capable of adjusting the amount of light incident on an optical element, and is provided with: a fixed body having a cylindrical main body part and an opening forming part which is disposed on the light receiving side in the optical axis direction of the main body part and forms an opening; a movable body that is held in a state in which the movable body is magnetically attracted to the opening-forming portion and that is rotatable with respect to the fixed body; a drive unit that rotates the movable body; an aperture blade that opens and closes the opening in conjunction with the rotation of the movable body; a plurality of first balls interposed between the opening forming portion and the movable body; and a plurality of second balls interposed between the main body and the movable body.

A variable aperture assembly comprising: a base (30); one or more blades (40) arranged to define a variable aperture when viewed along a primary axis (O), wherein the one or more blades are movable relative to the base; an actuator (10) arranged, on actuation, to drive movement of the blades to any position within a range of movement so as to adjust the size of the variable aperture; wherein the variable aperture assembly is configured such that the position of the one or more blades is maintained at any position within the range of movement when the actuator is not actuating.