113 results about "Entire lens" patented technology

The imaging lens consists of, in order from the object side, a first lens group having a positive refractive power, a stop, a second lens group having a positive refractive power, and a third lens group. The third lens group includes one or more positive lenses and one or more negative lenses. During focusing, an entirety of the first lens group, the stop, and the second lens group, or an entirety of the second lens group integrally moves as a focus group, and the third lens group remains stationary with respect to an image plane. The imaging lens satisfies predetermined conditional expressions.

The application provides a three-dimensional profile synchronous scanning measurement method of a lens module, and relates to the technical field of lens detection. The method comprises the following steps: constructing a three-dimensional profile measurement system, and measuring a lens module to be measured based on the three-dimensional profile measurement system; calibrating a line confocal sensor to determine the corresponding relationship between the actual position of a lens in the lens module and the corresponding point in the light strip profile image captured by a high-speed camera assembly; adjusting the distance between the optical measurement module and the lens module to be measured to a focusing position through a Z-axis motion assembly; driving the lens module to be measured to move according to a planned path through an XY motion assembly, and simultaneously acquiring the light strip profile image of the entire lens module through the high-speed camera assembly; and performing data processing on the light strip profile image of the entire lens module to generate a three-dimensional profile image of the lens module. The application effectively solves the requirement of fast and accurate measurement of the three-dimensional profile of the lens module.

An imaging optical system (100) includes, in order from an object side to an image side, a front group (110), an aperture (130), and a rear group (120). The front group (110) is configured from a plurality of lenses including the first lens (10) disposed closest to the object side. The rear group (120) is configured from a plurality of lenses. The first lens (10) has a negative refractive power. When the total length of the entire lens system is d0, the effective radius of the object-side lens surface (11) of the first lens (10) is sd11, and the maximum image height is IH, the following conditional expressions are satisfied: 3.000 < d0 / sd11 < 4.500 (1); and (2) d0 / IH is greater than 2.500 and less than 5.000.

An embodiment of the present application provides an electronic device, including a housing, a lens cover plate, and a lens assembly. The lens assembly satisfies the condition: 0.7 < IH / (4*F#) < 6, which can achieve the characteristics of a large aperture and a large target surface, effectively improving the imaging quality. The lens cover plate can move along the optical axis direction, and the entire lens assembly or at least one lens close to the object side in the lens assembly can also move along the optical axis direction. When the camera module is in a non-working state, the lens assembly and the lens cover plate are in a contracted state, reducing the total length of the lens assembly and the lens cover plate. When the camera module is in a working state, the lens cover plate moves along the optical axis direction outside the housing to create a避让 space, and the lens assembly or the lens moves in the避让 space to achieve focusing. In this way, while meeting the high-quality imaging requirements of a large aperture and a large target surface, the occupied space of the camera module in the non-working state is reduced, which is beneficial to the thinning design of the electronic device.

The utility model provides an optical path difference regulation and control structure lens, and relates to the field of optical lenses, and the optical path difference regulation and control structure lens comprises a substrate and a lens part. The substrate provides a connecting surface which is sunken towards the inner side of the substrate; the lens part is adjacent to the connecting surface of the substrate, the lens part comprises a central area and an ultrastructure area located on the outer side of the central area, and the ultrastructure area comprises a lens array composed of a plurality of microlenses which are different in size and have different focuses; the outer contour of the central area is composed of a plurality of sections, and the size of each micro lens is in positive correlation with the distance from the corresponding section, so that the size change of the micro lenses corresponds to the shape of the outer contour of the central area. In the breadth of the ultrastructure area, the optical path difference regulation corresponds to the specific form of the central area and further corresponds to the specific human eye cell distribution characteristics, so that the optical path difference regulation effect of the whole lens part can accurately meet the myopia correction requirements of specific people.

An ophthalmic device and an ophthalmic device control program are provided that are capable of appropriately acquiring three-dimensional information about the anterior segment of the eye while stabilizing the fixation of the subject's eye. [Solution] The fixation target presenting optical system presents a fixation target to the subject's eye. The cross-sectional imaging optical system captures cross-sectional images of the anterior segment by receiving return light from the anterior segment that has been optically sectioned by the imaging light. The moving unit moves an optical unit including the fixation target presenting optical system and the cross-sectional imaging optical system relative to the subject's eye. The control unit can perform a three-dimensional information acquisition process to acquire three-dimensional information about the anterior segment by capturing cross-sectional images of multiple locations on the anterior segment while moving the optical unit and scanning the imaging light. When performing the three-dimensional information acquisition process, the control unit positions the fixation target within a limited area centered on the focal position of the entire lens system of the fixation target presenting optical system, regardless of the refractive power of the subject's eye.

The present invention discloses an anti-shake gimbal, comprising a shell, a carrier, a magnet group, a circuit board, a support body, a lower spring sheet and a base, wherein the carrier is provided with a lens module installation chamber for installing a lens module, the magnet group is fixedly installed on the base, the circuit board is installed at the bottom of the carrier and cooperates with the magnet group, the lower spring sheet movably connects the carrier and the base, and the support body is installed between the base and the carrier to rotatably support the carrier on the base. The present invention can drive the entire lens module including the lens and the image sensor to make a movement opposite to the vibration direction but close to the amplitude, thereby offsetting the shaking caused by the vibration.

The embodiment of the invention discloses a wide-angle photographic lens. The wide-angle photographic lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object plane to an image plane along an optical axis; the first lens has positive focal power, the second lens has positive focal power, the third lens has negative focal power, the fourth lens has negative focal power, the fifth lens has positive focal power, and the sixth lens has positive focal power. According to the embodiment of the invention, a traditional double-Gaussian symmetric optical system is constructed or approximately constructed, so that the light trend and the refraction angle of the object side space and the image side space are symmetric, and through the matching of the focal power of the lenses which are symmetric front and back, the reasonable air interval adjustment of different lenses and the optimization of the aperture of the lenses, the resolution of the lenses is improved. On one hand, aberration can be effectively corrected, small distortion, small chromatic aberration and low field curvature can be achieved, and on the other hand, the front-back length of the whole lens can be compressed, and the size of the whole lens can be reduced.

The invention discloses a spectacle lens which is composed of two or more hollow (or transparent) stripes and a lens body made of opaque or semitransparent materials, the width of the single hollow (or transparent) stripe is smaller than 3mm, and the stripes are straight, curved, long or short and can grow to be fully distributed on the whole lens body from beginning to end. Or the short stripes can be spliced and combined and then partially or fully distributed on the lens main body. When in use, the lenses are cut according to the shape of the glasses frame and are mounted, and then the glasses can be normally worn. Through the lenses provided by the invention, the object can be seen more clearly (especially the shortsightedness and hyperopia are obvious). Through the lens, when a user watches an electronic screen such as a mobile phone screen and a computer screen for a long time, eyestrain can be relieved, so that eyes are better protected.

The utility model discloses an optical lens for an optical fiber interferometer lens, and belongs to the field of optical lenses. An optical lens for an optical fiber interferometer lens comprises an interferometer main body lens, an optical lens assembly is fixed on one side of the interferometer main body lens, a lens mounting inner frame is fixed on the inner side of the optical lens assembly, a lens is attached to one side of the lens mounting inner frame, and the lens is fixed on the other side of the interferometer main body lens. According to the utility model, the fixing position can be rapidly adjusted according to the thickness of the lens through the fixing member, so that the optical lens can be flexibly adapted to various lenses with different thickness specifications, the universality of the lens is enhanced, and different experiment or detection requirements can be met no matter the lenses with different parameters are replaced. The optical lens assembly can be conveniently and quickly adjusted and fixed when the lens assembly is used for mounting lenses of different batches and different specifications in the production and manufacturing process, so that the stability of the overall performance of the optical lens is ensured, the whole lens assembly does not need to be replaced due to the thickness change of the lens, and the use cost and the operation complexity are reduced.

The utility model discloses a dipped headlight module, lighting equipment and a vehicle. The dipped headlight module is used for the vehicle and comprises a light source and a lens set, the lens set comprises at least three spherical lenses, the multiple spherical lenses are distributed in the length direction of the vehicle, and light emitted by the light source is projected to the front of the vehicle through the lens set. Therefore, the lens group comprises at least three spherical lenses, and the spherical lenses have better refraction angles, so that the whole lens group can be closer to a light source position, the size of a projection lens of the dipped headlight module is effectively reduced, and meanwhile, the plurality of spherical lenses can be used for mutually compensating and correcting red and blue wave bands, and the chromatic aberration problem is effectively corrected.

The invention relates to a metasurface optical element phase optimization method and a continuous line laser projection module, and belongs to the technical field of optical elements, the metasurface optical element phase optimization method comprises the following steps: S1, using Zemax to design a lens capable of converting approximately parallel incident Gaussian plane waves into continuous line laser at a certain emission angle, converting the rise of the lens into a phase surface curve; s2, performing full-wave simulation by using FDTD to obtain a series of atomic parameters, and selecting a high-transmittance region in the atomic parameters as an optimized initial target monomer; s3, solving units in all periods within a certain space angle range according to a formula; and S4, solving a group of slopes ki every 2 pi from the center of the lens in the S1 to the two sides, and matching the value of ki with the optimized unit library until the filling of the phase surface type of the whole lens is completed. According to the invention, through algorithm optimization, the phase surface type after the arrangement of the nanorods is close to continuous arrangement, and the projection of continuous line laser is realized.

The utility model relates to the technical field of projection, and provides a lens unlocking device which comprises a lock column, an elastic piece and a driving assembly, the lock column has a first state and a second state, the lock column is used for locking a projection lens in the first state, and the lock column is separated from the projection lens and the elastic piece is matched with the lock column in the second state; the driving assembly comprises a driving part and an operating part, the driving part is matched with the elastic piece, and the operating part is used for driving the elastic piece to drive the lock column to selectively switch between the first state and the second state under the driving of external force. The driving assembly is driven by external force, in the driven process, the driving part moves to drive the elastic piece to move and drive the locking column to be switched between the first state and the second state, unlocking or locking of the lens is achieved, the whole lens unlocking device is easy and convenient to operate and simple in structure, a user can conduct unlocking with one hand and rotate the lens with the other hand for replacement during operation, and the user experience is improved. The operation difficulty is reduced, and the purpose of quickly replacing the lens is achieved. In addition, the embodiment of the utility model further provides a projection device.

The invention relates to a high-precision small-F-number divergent interferometer standard lens and an optical interferometer. The lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right. The whole lens uses a double-Gaussian configuration, incident parallel light is converged and then diverged, the aperture of the lens is gradually reduced from the first lens to the fourth lens and then gradually increased from the fourth lens to the seventh lens, and the first surface of the seventh lens is an aspheric surface. The divergent lens has the characteristics of reasonable design, strong machinability and small F number, can be used for an interferometer to detect lens surfaces with more R numbers, can reduce the working length of the interferometer, and has a relatively ideal wavefront value.

The aperture aperture calibration and testing system and method provided in this application describe a system where a control module controls an aperture motor via signals. The aperture motor adjusts the aperture mechanism to form the light-transmitting aperture. A camera captures an image of the light-transmitting aperture. The control module processes the image to calculate the actual light-transmitting diameter, and then uses optical formulas to calculate the aperture F-number. This eliminates the need for measurement in imaging instruments or optical test stands, resulting in a small, low-cost system that facilitates rapid deployment and mass production on production lines. The system employs an independent testing architecture, directly driving and testing the aperture mechanism without requiring the assembly of the entire lens, thus improving testing flexibility. The method describes adjusting the aperture aperture with the aperture motor, recording the motor's step count, obtaining the actual light-transmitting diameter through image processing, and calculating the aperture F-number by combining the camera's focal length with the actual light-transmitting diameter, achieving measurement without the need for testing equipment.

The present application discloses an automatic lens optical center adjustment device, which includes an operating table for adjusting the lens, a sensor moving mechanism for adjusting the distance between the sensor and the lens. The operating table and the sensor are arranged opposite to each other. The device further includes a lens adjustment mechanism and an intermediate transfer mechanism for picking up and placing the lens at the operating table. The operating table fixes the lens, and a lens movement adjustment mechanism is arranged at the lens. The lens movement adjustment mechanism includes a first adjustment component and a second adjustment component for respectively adjusting the X-axis coordinate and the Y-axis coordinate of the lens. The lens adjustment mechanism includes an X-axis adjustment component and a Y-axis adjustment component for respectively adjusting the first adjustment component and the second adjustment component. Through the present application, automatic adjustment can be achieved, the position error of the lens can be eliminated, so that the optical center of the optical path is consistent with the optical center of the entire lens, and a clear image can be obtained on the imaging sensor. It not only has a high degree of automation, but also greatly improves the efficiency.

According to the transmission-type low-temperature lens thermal unloading structure provided by the invention, a flexible structure is adopted between a lens and a lens frame to be matched with low-temperature glue, and an unloading ring and Bipod laminated structure is adopted between lens groups, so that the surface shape and center deviation requirements of the whole lens assembly under low temperature and gravity are ensured. The main structure comprises a single-group lens assembly, a Bipod internal support, a support ring, an unloading ring and a Bipod external support. Each single lens assembly is composed of a lens, a lens unloading frame, an annular rubber pad and a pressing block. The single lens assembly is connected through an unloading ring and Bipod stacked structure, in order to ensure the mechanical property of the whole lens assembly, two supporting rings are added, and the overall rigidity is increased by reducing the span of Bipod; the external support of the whole lens assembly adopts a Bipod flexible support, so that the influence of the external support on the lens assembly at a low temperature is reduced.

The invention discloses an aperture-variable camera module and electronic equipment. The aperture-variable camera module comprises a lens unit, an aperture-variable unit arranged on the light incident side of the lens unit along an optical axis, and an imaging unit arranged on the imaging side of the lens unit along the optical axis, the variable aperture unit comprises a base mechanism arranged on the lens unit and an aperture adjusting mechanism arranged on the base mechanism, and the imaging unit comprises a shell arranged on the lens unit, and an automatic focusing mechanism, a light filtering mechanism and a processing mechanism which are sequentially stacked in the shell; the light filtering mechanism and the processing mechanism are fixed and arranged on the inner side of the automatic focusing mechanism in a floating manner; one end, corresponding to the imaging side, of the lens unit penetrates through the automatic focusing mechanism and is coaxially opposite to the light filtering mechanism; compared with the prior art, the aperture is adjustable, the whole lens unit and the variable aperture unit do not need to be pushed to move during adjustment, kinetic energy needed for driving is small, and adjustment is stable.

The present invention provides a lens heating device that uniformly heats the entire lens of an optical device. [Solution] The present invention provides a lens heating device comprising a metal or metal-plated heat transfer body (4) having a support plate (2) and a heat dissipation ring (3) connected to the support plate (2), and a heating element (1) attached to the support plate (2) of the heat transfer body (4). The heat dissipation ring (3) of the heat transfer body (4) has a connecting portion (31) connected to the support plate (2) and a distal portion (32) connected to the connecting portion (31) on the opposite side of the support plate (2). The heat dissipation ring (3) of the heat transfer body (4) is positioned in contact with the outer circumferential surface of the lens (120) which is placed in the housing (110) of the optical device (100). A gap (33) is provided at the connecting portion (31) of the heat dissipation ring (3) of the heat transfer body (4) that does not directly contact the lens (120), thereby heating the entire lens (120) evenly.

The present invention relates to the technical field of optical lenses, and specifically relates to a large target surface long focal length large distortion infrared lens, which can meet the observation requirements of long distance and large field of view. The whole lens is composed of four lenses. Among them, the first lens includes an aspherical surface, the second lens has two aspherical surfaces, the third lens has a diffractive surface and an aspherical surface, and the fourth lens has two aspherical surfaces. Compared with conventional infrared lenses, it has a long focal length and large distortion, and can well meet the observation requirements of long distance and large field of view; and it has a large imaging target surface, which is used for 1280x1024, with high resolution and large field of view.

The utility model provides a lens assembly and a lens system, the lens assembly comprises a general part and a plurality of replacement parts, the general part comprises a first cylinder and a first lens; one of the replacement parts can be selectively mounted at the first assembly end, and each replacement part comprises a second barrel and a second lens; light emitted by the light source enters the second barrel and the first barrel through the light inlet end, and is condensed into parallel light through light effect treatment of the second lens and the first lens, and the parallel light is emitted out of the light outlet end of the first barrel. According to the lens assembly and the lens system, when the lens assembly and the lens system face light source modules with different lamp bead layouts, matched replacement parts can be selected for further adjustment, light emitting uniformity and brightness are corrected and adjusted, the lens assembly does not need to be completely replaced or redesigned, and experience is better.

To provide a compact zoom lens having high optical performance, capable of achieving both correction of axial chromatic aberration and chromatic aberration of magnification and correction of field curvature aberration, and to provide an imaging apparatus.SOLUTION: The zoom lens is equipped with positive, negative and positive lens groups and a rear group, and constituted so that a 1st lens group and the final lens group included in the rear group are fixed at the time of varying power, the final lens group includes a specified cemented lens and a meniscus lens, and a specified expression is satisfied as a whole.SELECTED DRAWING: Figure 1

The present invention discloses a line-scanning lens, which includes a first fixed lens, a floating focusing lens group, and a second fixed lens arranged in sequence along the optical axis from the object plane to the image plane; the positions of the first fixed lens and the second fixed lens are fixed, and the position of the floating focusing lens group can float along the optical axis. In this way, the first fixed lens and the second fixed lens remain stationary to maintain symmetry, which can weaken the influence of the movement of the floating focusing lens group on aberration and ensure that the image quality at each working distance reaches balance; moreover, the shape coefficient X1 of the first fixed lens and the shape coefficient X2 of the second fixed lens satisfy -2.029 < X2 / X1 < -0.779, ensuring that the shapes of the first fixed lens and the second fixed lens are similar and opposite in direction, canceling the lateral aberration and improving the imaging quality; at the same time, the combined focal power fai 浮动 of the floating focusing lens group and the focal power fai of the line-scanning lens satisfy 1.034 < fai 浮动 / fai < 1.351. In this way, the focal power of the floating focusing lens group is close to that of the entire lens, which is beneficial to ensuring that the focal length of the lens remains constant at different object distances.

An electronic device is disclosed herein. The device includes a housing including a first opening formed in a surface thereof, a camera at least partially disposed in the housing, such that a lens of the camera is aligned with the first opening, a camera bracket including a flange structure disposed in the housing and spaced apart from the surface of the housing at a predetermined interval, a protruding structure extending from the flange structure into a space defined between the camera and an inner wall of the first opening to surround at least part of the camera, wherein the flange structure includes a first through-hole, and the protruding structure includes a recess, and wherein the protruding structure and the inner wall of the first opening form a microphone hole in communication with the recess and part of the first opening, an adhesive member disposed between the flange structure and an inner surface of the housing, the adhesive member including a passage, wherein one side of the passage is connected to the recess, and an opposite side of the passage is connected to the first through-hole, and a microphone element disposed in the housing and aligned with the first through-hole.

The present application discloses a large aperture internal focusing telephoto camera lens. The camera lens comprises, from the object side to the image side, a first lens group with positive focal power, a second lens group with negative focal power, an aperture stop, a third lens group with positive focal power, and a fourth lens group with negative focal power; during the focusing process, the second lens group moves along the optical axis toward the image side, the third lens group moves along the optical axis toward the object side, and the positions of the first lens group and the fourth lens group relative to the image plane remain unchanged; the large aperture internal focusing telephoto camera lens satisfies the following conditions: 0≤F1 / F≤2, (1); ‑2≤F2 / F≤0, (2); 0≤F3 / F≤2.5, (3); ‑6≤F4 / F≤0, (4). The technical solution of the present application can reduce aberrations, field curvature and distortion by setting the positive and negative focal powers of each lens group, the ratio between the composite focal length of each lens group and the composite focal length of the entire lens, and a unique focusing mechanism, thereby improving the imaging quality.

The present invention discloses an ultra-wide-angle low-distortion lens, comprising a lens body, wherein the lens body comprises, from the object plane to the image plane, a first glass meniscus lens with a negative focal length, a second lens with a negative focal length, a third lens with a positive focal length, a fourth lens with a positive focal length, a fifth lens with a negative focal length, a sixth lens with a positive focal length, a filter and a photosensitive film, the surface curvature radius of the first glass meniscus lens with a negative focal length close to the object is R1, the overall focal length of the lens body is F, the full image height of the lens body is H, and the relationship is satisfied: R1 / H<3.7, F / H<0.33. The present invention is convenient and quick to use, can achieve small distortion, and under the same horizontal field of view angle, the overall distortion is controlled within ‑13%, and plastic lenses are used to replace glass lenses to reduce weight and facilitate carrying.

The present application discloses a novel lens with adjustable optical path, comprising a lens, an inner adjustment seat, an outer frame seat, a first adjustment assembly for adjusting the movable lens along the X-axis direction, and a second adjustment assembly for adjusting the movable lens along the Y-axis direction. The lens is fixedly arranged on the inner adjustment seat, and an elastic support member is connected between the inner adjustment seat and the outer frame seat. The first adjustment assembly comprises a first elastic member, a first top support block respectively contacting the left and right sides of the inner adjustment seat, and a first adjustment rotating member, and the first elastic member is arranged between the first top support block and the outer frame seat; the second adjustment assembly comprises a second elastic member, a second adjustment rotating member respectively contacting the front and rear sides of the inner adjustment seat, and a second top support block, and the second elastic member is arranged between the second top support block and the outer frame seat. The lens structure of the present application is novel and the design is ingenious. The adjustment of the lens position is very convenient, thereby making the optical center of the entire lens after adjustment consistent with the optical center of the optical path.

The utility model discloses an integrated lens support structure which comprises a support body, a containing cavity is formed in the support body, a mounting plate is arranged in the containing cavity, a first mounting position is arranged on the inner wall of the containing cavity, a second mounting position is arranged on the mounting plate, and the first mounting position is located on one side of the second mounting position. The frame body, the mounting plate, the first mounting position and the second mounting position are of an integrally-formed structure. According to the lens support, the support body and the structures in the support body are of the integrally-formed structure, so that the whole lens support is of an integrated structure, a plurality of supports do not need to be assembled again when a lens is installed, the machining efficiency of the lens support is improved, and the overall cost is reduced; meanwhile, through the arrangement of the first installation position and the second installation position, the lenses can be conveniently and correspondingly installed on the installation positions, installation of the two lenses on one frame body is achieved, the light path relation formed by the lenses can be guaranteed, the assembling steps are simplified, the overall machining and assembling procedures are simplified, and the overall structure is simple.

The present invention belongs to the technical field of vehicle-mounted imaging lenses, and discloses a vehicle-mounted lens optical system suitable for an 8MP chip, comprising: a front lens group, an aperture, a rear lens group, a filter and an imaging surface arranged coaxially from the front object side to the rear image side; the front lens group has a negative focal power; the rear lens group has a positive focal power; the aperture is located between the front lens group and the rear lens group, and the aperture through hole center is located on the optical axis; the imaging surface is located on the rear side of the rear lens group, and the filter is located between the rear lens group and the imaging surface; the ratio of the combined focal length Fa of the front lens group and the combined focal length Fb of the rear lens group satisfies ‑2≥Fa / Fb≥‑23; wherein Fa is the combined focal length value of the front lens group, and Fb is the combined focal length value of the rear lens group. The present invention improves the resolution capability of the entire lens group. At the same time, the length and aperture of the lens are also effectively controlled, and high-definition imaging of a large target surface is achieved using a small-aperture lens.