1168results about "Camera diaphragms" 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.

A variable aperture device and a camera module. The variable aperture device comprises at least one stator (20) and at least one mover (30), wherein the mover (30) is movably assembled on the stator (20); at least one driving assembly (40), which is used for driving the mover (30) to axially rotate or move linearly relative to the stator (20); and a plurality of adjustment assemblies (50), the adjustment assemblies (50) defining at least one light passage hole (500), the adjustment assemblies (50) being adjustably mounted to the stator (20) and the mover (30), and as the mover (30) moves relative to the stator (20), the relative positions of the adjustment assemblies (50) being driven to change, so as to define the size of the light passage hole (500); the stator (20) and the mover (30) are correspondingly provided with at least two sets of ball slots (240, 340), at least two balls (41) are separately assembled within the ball slots (240, 340), the inner wall surface of at least one ball slot (240, 340), extends at an angle relative to an optical axis L and abuts against at least one ball (41), and the inner wall surface of the remaining at least one ball slot (240, 340) extends in directions perpendicular to the optical axis and parallel to the optical axis L.

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 imaging lens with an optical axis includes a lens carrier and a variable through hole assembly. The lens carrier is configured for at least one lens element to be disposed therein, and the lens carrier includes a mount structure. The variable through hole assembly includes a plurality of movable blades and a rotatable element. The movable blades movably and together surround the optical axis to form a through hole, and a size of the through hole is variable by movement of the movable blades. The rotatable element is connected to the movable blades, and the rotatable element moves the movable blades to vary the size of the through hole. At least one of the movable blades and the rotatable element of the variable through hole assembly is disposed on the mount structure.

A camera module includes an imaging lens having an optical axis, a variable through hole mechanism, an image sensor, an image sensor actuating module and a flexible printed circuit. The variable through hole mechanism is disposed corresponding to the imaging lens to adjust an amount of light into the imaging lens. The image sensor is disposed on the optical axis and is configured to convert imaging light passing through the imaging lens into an image signal. The image sensor actuating module is configured to move the image sensor. The variable through hole mechanism and the image sensor actuating module each have a coil disposed on the flexible printed circuit. The flexible printed circuit is electrically connected to the variable through hole mechanism and the image sensor actuating module.

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 imaging system may include an image sensor. The imaging system may include a strip with apertures, where a portion of the strip is located along an optical pathway that directs light to the image sensor. The imaging system may include an aperture shifter configured to move the strip relative to the optical pathway, thus allowing light propagating along the optical pathway to pass through one of the apertures of the strip and be incident on the image sensor. The imaging system may include a controller configured to control the image sensor and the aperture shifter.

The embodiment of the invention provides a variable aperture, a camera module and electronic equipment, relates to the technical field of camera shooting, and is used for reducing the eccentricity probability of an aperture hole of the variable aperture. In the iris ring, a first track and a second track are defined by a fixed seat and a rotating bracket. The first rolling piece and the second rolling piece which are located between the fixing base and the rotating support in the optical axis direction are located on the first track and the second track respectively. The first rolling piece rolls along the first track along a first arc track, and the second rolling piece rolls along the second track along a second arc track. In the optical axis direction of the iris diaphragm, the rotation trajectory of the rotation bracket may be concentric with the first arc trajectory and the second arc trajectory with respect to the optical axis.

An optical lens module includes an adjustable aperture assembly including rotatable blades, a driving part and an attractive force mechanism. The rotatable blades surround an optical axis of a lens element and form a light pass aperture. The driving part includes a rotatable component, a fixed component, a driving magnet and a coil. The rotatable component rotates the rotatable blades for adjusting an aperture size of the light pass aperture. The driving magnet is disposed on the rotatable component. The coil corresponds to the driving magnet to rotate the rotatable component. The attractive force mechanism provides an attractive force between the rotatable component and the fixed component and provides a driving force exerted on the rotatable blades for maintaining the light pass aperture in an enlarged state. The attractive force includes a magnetic force exerted by the rotatable component on a first magnetic element fixed on the fixed component.

An imaging lens assembly module, which defines an optical axis, includes an optical element. The optical element includes a light blocking portion and an anti-reflecting thin film. The light blocking portion is opaque, and the light blocking portion is closer to the optical axis than the other portion of the optical element to the optical axis. The anti-reflecting thin film is disposed at least on a surface of the light blocking portion, and the anti-reflecting thin film includes a nano structure layer and at least one intermediate layer. The nano structure layer has a plurality of ridge-like protrusions which extends non-directionally. The intermediate layer is disposed between the nano structure layer and the optical element.

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.

The invention discloses a variable aperture assembly and a lens module thereof. The variable aperture assembly comprises a base, a turntable, a plurality of blades and two groups of driving modules, the rotating disc is located between the base and the blade, the blade is connected with the rotating disc with two rails, and the two rails correspond to the two sets of driving modules respectively. And the two groups of driving modules are used for driving the turntables to rotate in opposite directions in a lever manner so as to drive the blades to correspondingly move. Each group of driving modules comprises a driving piece and a driven piece, when the driving piece is controlled to apply thrust to the driven piece, the stress bearing portion of the driven piece correspondingly generates restoring force, and the thrust and the restoring force cooperatively drive the driven piece to make contact with one of the two rails. Therefore, the aperture can be accurately adjusted.

An optical element driving mechanism includes a fixed assembly, a movable assembly, and a driving assembly. The movable assembly is configured to be connected to an optical assembly and is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. When at least a portion of the movable assembly moves relative to the fixed assembly, the optical assembly moves relative to the movable assembly.

The utility model relates to the technical field of aperture devices, and relates to an aperture module, a lens device and photographic equipment. The aperture module comprises a fixing seat and a rotating disc, the fixing seat is provided with an inner cavity, the rotating disc is axially and rotatably arranged in the inner cavity, a containing groove communicated with the inner cavity is further formed in the fixing seat and is opposite to the rotating disc, a gap is formed between the rotating disc and the fixing seat, a silencing part is installed in the containing groove, and at least part of the silencing part extends into the inner cavity through the containing groove. And the silencing part penetrates through the gap to be in contact with the turntable, and is extruded by the turntable to generate elastic deformation. The rotary disc can rotate around the central axis in the inner cavity relative to the fixing base under the action of external force, meanwhile, the rotary disc also rotates relative to the silencing part, the rotary disc is indirectly connected with the fixing base through the silencing part, vibration of the rotary disc is absorbed through elastic deformation of the silencing part, and then the purposes of shock absorption and noise reduction are achieved when the aperture module acts. And the requirement of photographic equipment on silencing of the aperture during video recording is met.

The invention relates to the technical field of aperture devices, in particular to an aperture module, a lens device and photographic equipment. The aperture module comprises a fixing seat and a rotating disc, the fixing seat is provided with an inner cavity, the rotating disc is axially and rotatably arranged in the inner cavity, a containing groove communicated with the inner cavity is further formed in the fixing seat and is opposite to the rotating disc, a gap is formed between the rotating disc and the fixing seat, a silencing part is installed in the containing groove, and at least part of the silencing part extends into the inner cavity through the containing groove. And the silencing part penetrates through the gap to be in contact with the turntable, and is extruded by the turntable to generate elastic deformation. The rotary disc can rotate around the central axis in the inner cavity relative to the fixing base under the action of external force, meanwhile, the rotary disc also rotates relative to the silencing part, the rotary disc is indirectly connected with the fixing base through the silencing part, vibration of the rotary disc is absorbed through elastic deformation of the silencing part, and then the purposes of shock absorption and noise reduction are achieved when the aperture module acts. And the requirement of photographic equipment on silencing of the aperture during video recording is met.

The invention provides an intelligent vehicle-mounted electronic rearview mirror system based on optical fiber transmission, and the system comprises a camera module which is installed outside a vehicle body; the host is connected with the camera module through an optical fiber and is used for receiving and processing the video data acquired by the camera module; and the rearview mirror display screen is connected with the host and is used for displaying the video processed by the host. Data transmission is carried out through the optical fiber, high-speed and uncompressed video signal transmission is ensured, delay and data loss are reduced, and the stability and reliability of the system are improved. The camera module comprises a self-adaptive optical assembly, the self-adaptive optical assembly comprises a wavefront detector, a wavefront controller and a wavefront corrector, and the self-adaptive optical assembly can correct subtle image distortion introduced by lens deformation or aerodynamic effect during high-speed driving, so that the imaging definition under the extreme illumination condition is further improved.

The invention provides an optical element driving mechanism. The optical element driving mechanism comprises a movable part, a fixed part and a driving assembly, the movable part is used for being connected with an optical element, and the movable part can move relative to the fixed part. The driving assembly is used for driving the movable part to move relative to the fixed part. The optical element driving mechanism further comprises a middle assembly, and the movable part can move relative to the fixed part through the middle assembly.

The utility model provides a variable aperture camera shooting driving device, and relates to the technical field of optical element driving. The variable aperture camera shooting driving device comprises an upper cover, a limiting piece, a blade assembly, a driving assembly, a carrier, a base and an electric connecting piece, the upper cover and the limiting piece are fixedly arranged on the base in a buckled mode, the blade assembly is arranged between the limiting piece and the carrier, the carrier is carried on the base, a driving assembly is arranged between the carrier and the base, an electric connecting piece is arranged on the base, and the driving assembly is electrically connected with the electric connecting piece. And the pre-pressing assembly is used for pre-pressing the blade assembly and is arranged between the limiting piece and the carrier. According to the technical scheme, the technical problems that in the prior art, a blade limiting mode generally only adopts a positioning column mode, no pre-tightening force exists, and precision, repeatability and the like become poor due to fit clearance can be solved.

The invention provides a variable aperture device which comprises at least one stator, and the stator is provided with a first ball moving part; the mover is movably assembled on the stator, and the mover is provided with a second ball moving part; the at least one driving assembly is used for driving the rotor to do axis-around motion relative to the stator; the ball, the first ball moving part and the second ball moving part are matched with one another to define a movable space suitable for the ball to move, and along with the axial movement of the rotor, the ball rolls in the first ball moving part to assist the second ball moving part to slide relative to the ball, or the ball rolls in the second ball moving part to assist the second ball moving part to slide relative to the ball. The auxiliary ball slides relative to the first ball moving part; the adjusting parts define at least one light through hole, the adjusting parts are adjustably installed on the stator and the rotor, and along with the relative movement of the rotor relative to the stator, the relative position of the adjusting parts is driven to change, so that the size of the light through hole is defined.

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.

An accessory is detachably mounted between an interchangeable lens and an image pickup apparatus. The accessory includes a first aperture unit configured to adjust a light amount incident from the interchangeable lens, a communication unit configured to communicate with each of the interchangeable lens and the image pickup apparatus, and a processor configured to control the first aperture unit, and change a communication processing method with the interchangeable lens or the image pickup apparatus according to whether or not received information received via the communication unit is information regarding aperture control.

An optical lens, along optical axis from object side to imaging plane, sequentially includes: a first lens (L1) having negative optical power, convex object-side surface (S1) and concave image-side surface; a second lens (L2) having positive optical power, concave object-side surface (S3) and convex image-side surface (S4); a stop (ST); a third lens (L3) having positive optical power, convex object-side surface (S5) and image-side surface (S6); a fourth lens (L4) having positive optical power, convex object-side surface (S7) and image-side surface (S8); a fifth lens (L5) having negative optical power, concave object-side surface (S9) and image-side surface (S10); and a sixth lens (L6) having positive optical power, convex object-side surface (S11) and concave image-side surface (S12). The fourth lens (L4) and fifth lens (L5) form a cemented lens. True image height IH corresponding to maximal field of view and effective focal length f satisfy:0.6<f / IH<0.7.

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.

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.

A variable aperture (60), a camera module (100), and an electronic device (1) are provided. The variable aperture (60) includes a fastening base (601), a rotatable support (603), and a variable stop (605). The rotatable support (603) is rotatably accommodated in the fastening base (601). The rotatable support (603) encloses a space (630). The variable stop (605) includes M blades (65), the M blades (65) jointly enclose a light transmission hole (650), and the light transmission hole (650) communicates with the space (630). Each blade (65) is rotatably connected to the fastening base (601), and is slidably connected to the rotatable support (603). M is a positive integer not less than 2. A positioning protruding part (622) is disposed on an inner surface that is of the fastening base (601) and that faces the rotatable support (603), and / or a positioning protruding part (622) is disposed on an outer surface that is of the rotatable support (603) and that faces the fastening base (601), and the fastening base (601) is capable of being in contact with the rotatable support (603) through the positioning protruding part (622). This reduces an assembly tolerance between the rotatable support (603) and the fastening base (601), reduces a difference of a size of the aperture in various postures caused by shaking of the camera module (100), and improves an imaging effect of the camera module (100) and quality of a shot image.

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.

To provide a motor which can be reduced in size and height, a blade drive device, a camera module, and a camera-equipped device.SOLUTION: A motor is provided, comprising a fixed body having a coil, a movable body having a magnet arranged opposite the coil, a fluid support unit for movably supporting the movable body relative to the fixed body, and limiting parts for limiting the distance between the magnet and the coil.SELECTED DRAWING: Figure 12

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.