37 results about "Pentaprism" patented technology

The invention belongs to the technical field of telescope manufacturing, and discloses a large-view-field telescope optical system which is characterized in that a first objective lens, a second objective lens, a third objective lens, a focusing lens, a semi-pentaprism, a roof prism, a first eyepiece lens, a second eyepiece lens and a third eyepiece lens are sequentially designed from the object side to the image side in the optical axis direction. According to the optical system, only the ten lenses have diopters, the requirement for the field of view of 6.7 degrees under the 8-fold condition is met, and the exit pupil distance reaches 22.6 mm.

A penta prism collimator having four freeform surfaces that fold the optical path of light received from a microdisplay collimates light for coupling to a waveguide. In some embodiments, the freeform surfaces are toroidal surfaces made from a single injection-molded element, such as a single piece of plastic. The freeform surfaces collimate the light at a variety of distances from an input pupil of a waveguide, allowing for more freedom of placement within a frame of a WHUD.

An optical system of binoculars includes a first object biconvex lens of positive focal power, a second object meniscus lens of negative focal power, a third object meniscus lens of positive focal power, a fourth object meniscus lens of negative focal power, a half pentaprism, a roof prism, a first eyepiece biconcave lens of negative focal power, a second eyepiece biconvex lens of positive focal power, a third eyepiece biconvex lens of positive focal power, a fourth eyepiece meniscus lens of negative focal power, and a fifth eyepiece meniscus lens of positive focal power. These are sequentially arranged along an optical axis direction from an object side to an observation side. When focusing, the fourth object lens moves along the optical axis direction. The binoculars include an exit pupil diameter range of 3.5 mm-4.5 mm, an exit pupil distance range of 15-18 mm, and a field angle range of 6°-6.5°.

The invention belongs to the technical field of telescope manufacturing, and discloses a small-caliber large-view-field telescope optical system which is characterized in that an objective lens first lens, an objective lens second lens, an objective lens third lens, a focusing lens, a semi-pentaprism, a roof prism, an eyepiece first lens, an eyepiece second lens and an eyepiece third lens are sequentially arranged from the object side to the image side in the optical axis direction. According to the optical system, a large field of view of 6.7 degrees can be realized under the condition of 10 times.

A reimaging lens assembly includes a pentaprismatic optic that includes two reflective surfaces and two refractive surfaces. The reflective surfaces are powered surfaces, and the reflective surfaces may be spherical, aspherical, and / or freeform reflective surfaces. The pentaprismatic optic may receive light from a wide field of view (WFOV), and may change the angle of the output light from that of the input light, for example by 90 degrees. The pentaprismatic optic may be coupled to an image receiver, such as a cooled or uncooled camera. The reimaging lens assembly may include further optical elements between the pentaprismatic optic and the image receiver, such as one or more lenses, filters, and / or cold stops. The lens assembly provides a compact system, with a small number of optical elements, and with desensitized output that reduces image jitter.

The utility model discloses a single lens reflex one-time imaging camera with a replaceable lens, which comprises a camera body and photographic paper arranged in the camera body, and further comprises a replaceable lens bayonet, a mechanical shutter system, a single lens reflex optical view finding system and an FDU instant imaging module, the camera further comprises an interchangeable lens, the interchangeable lens is connected with the camera body through an interchangeable lens bayonet, and the interchangeable lens bayonet is connected with the camera body through a clamping device. The single lens reflex optical framing system comprises a reflector assembly, a pentaprism structure and a viewfinder, the reflector assembly is arranged behind the replaceable lens bayonet, the position of the reflector assembly is controlled through a mechanical shutter system to achieve switching between framing and shooting, and light enters from the replaceable lens, is reflected to the pentaprism structure through the reflector assembly and is finally projected to the viewfinder; the mechanical shutter system is arranged behind the reflector assembly; according to the scheme, the universality of the camera is optimized, and a user can freely replace the lens according to different scenes and enjoy the convenience of instant imaging at the same time.

The utility model discloses a tool structure for stabilizing precision of a laser collimator, and relates to the technical field of laser interferometer equipment. The laser collimator comprises a linear rail, wherein a laser collimator body is arranged on one side of the linear rail; an adjusting assembly is arranged at the top of the linear rail and comprises a refraction base, the refraction base is arranged at the top of the linear rail, a parallel platform is arranged at the top of the linear rail, mounting rods are fixedly connected to the tops of the parallel platform and the refraction base, and a pentaprism and an M device are slidably connected to the surfaces of the two mounting rods respectively. The device has the advantages of simplicity in operation, high focusing speed, adjustable height, adaptability to different positions, convenience in movement and the like, and is accurate in precision detection and high in efficiency; as an important ring in the laser collimator, the tool structure not only improves the focusing speed, but also can solve the problem of poor consistency, and reduces the detection time cost.

The application belongs to the technical field of telescope manufacturing, and discloses a small-caliber large-view-field telescope optical system, characterized in that: from the object side to the image side along the optical axis direction, an objective lens first lens, an objective lens second lens, an objective lens third lens, a focusing mirror, a half-pentagonal prism, a ridge prism, an eyepiece first lens, an eyepiece second lens, an eyepiece third lens, an eyepiece fourth lens, an eyepiece fifth lens and an eyepiece sixth lens are sequentially arranged; and the optical system realizes a large view field of 6.7° under 10 times.

The application relates to a quantitative detection method and quantitative detection equipment of orthogonality; the quantitative detection method of orthogonality in the application can realize the calibration of the orthogonality index by making the detection light path parallel to the pumping light path after being folded by 90 degrees through a five-prism, and enabling two originally spatially orthogonal light beams to be observed and measured on the same collection assembly, thereby providing a standardized quantitative basis for the accurate implementation, quantitative evaluation and long-term maintenance of the high-precision spatial orthogonality of the pumping light path and the detection light path of the double-beam magnetometer.

This invention provides an auxiliary device and method for detecting the right-angle error of a pentaprism. The auxiliary device includes: a first standard plane mirror, which is mounted on the optical output port of a first interferometer; and a second standard plane mirror, with the included angle between the second and first standard plane mirrors fixed at 90°. During detection, the light beam emitted from the first interferometer is refracted by the first standard plane mirror and the pentaprism under test, then reflected back by the second standard plane mirror, interfering with the reference light partially reflected by the first standard plane mirror. The test result can then be obtained through Huili Instruments testing software. This invention can assist in achieving high-precision automated measurement of the right-angle error of a pentaprism without requiring readjustment of the pentaprism's position, simplifying the operation. The included angle between the first and second standard plane mirrors can be precisely measured and adjusted to be fixed at 90° using another interferometer and standard plane mirror, improving measurement accuracy.

A binocular telescope includes a pair of Schmidt-Pechan roof prisms, one half pentaprism, a right-angle prism, a main circuit board, and an auxiliary circuit board. The half pentaprism is connected to a lateral surface of another half pentaprism, and includes a lateral surface substantially faces the other half pentaprism. The right-angle prism includes one lateral surface connected to the lateral surface of the half pentaprism, and another lateral surface whose normal is perpendicular to the normals of the lateral surfaces of both the half pentaprism and the another half pentaprism. A light emitter and a light receiver of the auxiliary circuit board are arranged above the another lateral surface of the right-angle prism and electrically connected with the main circuit board respectively. Therefore, the binocular telescope is arranged in a centralized manner, so that the complexity in production and maintenance is effectively reduced.

The utility model discloses a pentaprism right-angle error detection auxiliary device, and belongs to the technical field of pentaprism detection, the pentaprism right-angle error detection auxiliary device comprises a basic module and an auxiliary detection module, the basic module comprises a mounting assembly, an adjusting assembly is arranged on the surface of the mounting assembly, and the auxiliary detection module is arranged at one end of the mounting assembly. The auxiliary detection module comprises an auxiliary assembly arranged at one end of the installation assembly, and a pointing fixing assembly is arranged on one side of the auxiliary assembly. The auxiliary assembly can assist the adjusting assembly in angle adjustment, and the pointing fixing assembly can point to any scale on the auxiliary assembly to achieve fixation; through the arrangement of the adjusting assembly, the degree of the included angle formed by the adjusting assembly can be adjusted according to the scale pointed by the pointing fixing assembly, so that the right angle of the pentaprism can be detected, a user with low education can also use the device to detect the right angle of the pentaprism, and the applicability is improved.

The application discloses a kind of two-dimensional guide rail straightness and perpendicularity testing device, comprising: X-axis guide rail, one end of the X-axis guide rail is fixedly connected with X-axis motor, the output end of the X-axis motor is fixedly connected with X-axis screw rod, and X-axis sliding block is threadedly sleeved on the X-axis screw rod;Y-axis guide rail, the Y-axis guide rail is vertically arranged with X-axis guide rail, one end of the Y-axis guide rail is fixedly connected with Y-axis motor, the output end of the Y-axis motor is fixedly connected with Y-axis screw rod, and Y-axis sliding block is threadedly sleeved on the Y-axis screw rod;Five-prism, the five-prism is fixedly connected with the top of X-axis sliding block;Photoelectric phase-sensitive sensor, laser and multidimensional adjusting mechanism.The application can quickly and accurately test the straightness and perpendicularity of two-dimensional guide rail by the setting of multidimensional adjusting mechanism, five-prism and photoelectric phase-sensitive sensor etc., to improve the testing efficiency of the straightness and perpendicularity of two-dimensional guide rail.

The invention discloses a laser demarcation device calibration system and method, and belongs to the technical field of laser demarcation device calibration, the laser demarcation device calibration system comprises a standard horizontal line camera group, a standard contour line camera group, a standard plumb line camera group and a four-dimensional workbench, the standard horizontal line camera group comprises a third CCD camera and a sixth CCD camera, the standard contour line camera group comprises a first CCD camera and a fourth CCD camera, the standard plumb line camera group comprises a second CCD camera and a fifth CCD camera, the first CCD camera, the third CCD camera, the fourth CCD camera and the sixth CCD camera are located in the same horizontal plane, and the second CCD camera, the fourth CCD camera and the fifth CCD camera are located on the same plumb line; the four-dimensional workbench comprises a base table, a height lifting assembly, a two-dimensional inclination assembly, a rotation assembly and a pentaprism. According to the invention, not only is the measurement accuracy of the laser demarcation device improved, but also the calibration work efficiency of the laser demarcation device is improved.

The invention discloses a high-precision stability test system and method for a right-angle prism device, and solves the problems that a method for testing the stability of a prism and an external mechanical structural member in an existing right-angle prism device is low in test precision and test efficiency and is not suitable for an environmental test. The device specifically comprises a rectangular frame, a plane reflection unit arranged on the inner bottom surface of the rectangular frame, a pentaprism unit arranged on the top surface of the rectangular frame, and an auto-collimation theodolite arranged on one side of the rectangular frame, the plane reflection unit comprises a plane reflection mirror which is horizontally arranged upwards, a grinding surface is arranged on the plane reflection unit, the plane reflection unit is used for placing a rectangular prism device to be measured, and the side surface of the rectangular prism device to be measured is tightly attached to the grinding surface; the top of the rectangular frame is provided with a frame light through hole corresponding to the plane mirror. A light outlet of the pentaprism unit corresponds to the light through hole of the frame; and the center height of the auto-collimation theodolite corresponds to the light inlet of the pentaprism unit.

The utility model discloses a high-definition synchronous shooting telescope, which is provided with an optical objective lens system, an optical positive image system and an optical eyepiece system, the optical positive image system is composed of a semi-pentaprism and a roof prism, a first reflecting surface of the semi-pentaprism is plated with a first reflecting film, and a second reflecting surface of the semi-pentaprism is plated with a second reflecting film. The first reflecting film is provided with a semi-pentaprism light-emitting hole, light entering the semi-pentaprism is emitted through the semi-pentaprism light-emitting hole and enters the roof prism, and the light enters the optical eyepiece system through the roof prism; a second reflecting surface of the half pentaprism is plated with a second reflecting film, the second reflecting film is provided with a photographing light transmitting hole, and part of the light entering the roof prism enters a photographing and / or camera shooting system through the photographing light transmitting hole. Photographing and camera shooting can be operated while human eye observation is achieved, a photographed picture is completely the same as a scenery observed from the eyepiece, the picture is clear, and observation of the telescope is not affected.

The invention provides a device and a method for adjusting static balance of a sensitive part of a gyro direction finder. The method comprises the following steps: placing a static balance test tool with a pentaprism below an instrument, and placing an auto-collimation theodolite on the outer side; adjusting the auto-collimation theodolite to enable the optical axis to be horizontal and aligned with the pentaprism; lowering the sensitive part, deflecting the horizontal collimated light by 90 degrees by the pentaprism, and vertically irradiating the horizontal collimated light to a plane reflector in the center of the bottom of the sensitive part; and observing the offset of an auto-collimation image relative to the division center through the auto-collimation theodolite, and when the offset exceeds a threshold value epsilon, adjusting a counterweight adjusting block at the bottom of the sensitive part to perform radial micro displacement until the offset is not greater than epsilon, thereby finishing adjustment. The method is helpful for stabilizing the light path, reducing subjective difference and improving adjustment consistency and efficiency.

The utility model discloses a telescope optical system with a long exit pupil distance, which is characterized in that a first objective lens, a second objective lens, a focusing lens, a semi-pentaprism, a roof prism, a first eyepiece lens, a second eyepiece lens, a third eyepiece lens and a fourth eyepiece lens are sequentially arranged from an object side to an image side along the direction of an optical axis, the first objective lens is a biconvex lens, the second objective lens is a biconcave lens, the first objective lens and the second objective lens form a balsaming lens, the focusing lens is a concave-convex lens, the convex surface faces the object side, the first ocular lens is a biconcave lens, the second ocular lens is a biconvex lens, and the focusing lens is a concave-convex lens. The first eyepiece lens and the second eyepiece lens form a balsaming lens, the third eyepiece lens is a biconvex lens, the fourth eyepiece lens is a concave-convex lens, and the convex surface faces the object side.

The application provides a collimator adjusting device and system, wherein the collimator adjusting device comprises a carrier, a laser theodolite, a five-prism and a focus-adjustable image analyzer which are detachably arranged on the carrier; during operation, the laser theodolite provides horizontal calibration parallel light, the calibration parallel light is sequentially converged by an off-axis parabolic mirror of a collimator to be adjusted and a plane mirror, and then converged on a target generator target, so as to assist in adjusting the height of a reference axis of the collimator to be adjusted; the five-prism is arranged between the laser theodolite and the off-axis parabolic mirror along the arc and vector direction of the collimator and reciprocally slides horizontally, so that the outgoing light of the collimator to be adjusted is deflected by 90 degrees; and the focus-adjustable image analyzer is used for receiving the outgoing light deflected by the five-prism, so as to assist in adjusting the collimation accuracy of the collimator to be adjusted. The application is suitable for high-precision adjusting scenes of various customized reflective collimators, and has simple structure and convenient production, which is beneficial to cost reduction and efficiency increase of enterprises.

The invention discloses an installation and adjustment method and system for a double-grating spectrum beam combining system with multiple reflectors, and the method comprises the following steps: firstly, building and transmitting an installation and adjustment reference through a theodolite and a pentaprism, and sequentially and serially installing and adjusting the reflectors and a first grating of a first half optical path based on a preset geometrical relationship; then, rebuilding a reference, and installing and adjusting the second reflection grating by adopting a mode of combining an auto-collimation method and a positioning tool; and finally, establishing a focusing detection light path based on a short-focus positive lens and a reticle, adjusting the pointing direction of a collimating lens by observing the stability of the position of a focusing light spot along with the translation of the reticle, and adjusting the collimation degree by observing the minimization of an out-of-focus light spot. According to the invention, high-precision and high-efficiency adjustment of a multi-reflector and double-grating structure is realized, and the light beam quality and the adjustment consistency of the spectrum beam combining system are remarkably improved.

The application relates to the technical field of calibration, and discloses a rapid target calibration system which comprises a laser transmitter, a laser receiver, a prism, an information processor, a mounting frame and an electronic level, the laser transmitter is arranged at the top end of the mounting frame, the laser transmitter is a laser transmitter which can rotate and is internally provided with a five-prism laser emitting head, the prism is arranged at the top end of another mounting frame, and the laser receiving device is fixed at the two ends of a measured device through magnetic bases; three motors are simultaneously started to drive the threaded rods to rotate, the threaded rods are used to drive the telescopic rods to move along the inner wall of the mounting rod so that the top plate is moved to a proper height, the horizontal detection device is used to determine whether the top plate is horizontal, the three motors are respectively adjusted to make the top plate horizontal, the stability of the equipment and the accuracy of data are improved, the work efficiency is improved, the target calibration work has no special requirement for the site, and a helicopter can be freely parked.

Provided is an optical module wherein a first prism is composed of a dichroic pentaprism that receives incident light on an incident surface and has five sides, at least a part of the incident light is reflected twice on a first side surface and a second side surface in the first prism, is emitted from an emission surface of the first prism, and is incident on a first imaging element, the first imaging element converts the incident light flux into an electric signal and extracts the electric signal as a first optical image, the incident light on the incident surface and the emission light from the emission surface are configured to be perpendicular to each other, a second prism receives transmitted light which is the other at least part of the incident light and is transmitted through a selected side surface of the first side surface or the second side surface in the first prism, and emitted from an emission surface of the second prism and made incident on a second imaging element, the second imaging element is configured to convert the incident light flux into an electric signal and extract the electric signal as a second optical image, and the first prism, the first imaging element, the second prism, and the second imaging element are integrated and arranged at the tip of a search scope.

This utility model relates to the field of telescope technology and discloses a magnetically attached binocular telescope, including a telescope body and a movable cap. The telescope body has a central axis in the middle, a first magnetic block fixed at the top of the central axis, a second magnetic block at the bottom of the movable cap, and a buffer layer at the top of the movable cap. Inside the telescope body, from the object side to the image side, are arranged a first objective lens, a second objective lens, a third objective lens, a focusing lens, a semi-pentagonal prism, a roof prism, a first eyepiece lens, a second eyepiece lens, a third eyepiece lens, a fourth eyepiece lens, a fifth eyepiece lens, and a sixth eyepiece lens, which can effectively reduce the pressure of the telescope eyepieces on the observer's eyes.

The present application provides a laser tracker calibration device and method, comprising: a first mounting platform and a second mounting platform slidably connected along a first direction, the first mounting platform and the second mounting platform being slidably connected along the first direction; a laser tracker, an interferometer, a first mounting frame, and a second mounting frame being sequentially arranged on the first mounting platform along the first direction, the first mounting frame and the second mounting frame both being slidably connected to the first mounting platform along the second direction, the first direction and the second direction being mutually perpendicular horizontal directions, the first mounting frame being mounted with a target mirror and an interferometer, and the second mounting frame being rotatably mounted with a reflector; a third mounting frame being arranged on the second mounting platform, the third mounting frame being slidably connected to the second mounting platform along the second direction, and the third mounting frame being mounted with a pentaprism. The laser tracker calibration device and method provided in the present application have a simple structure, are easy to operate, can quickly adjust the optical path length and reflective position, meet different calibration requirements of the laser tracker, and have high accuracy.

The utility model relates to a kind of laser head optical path calibration tool for laser cutting machine, including rack, laser head, backplate, five prism strip, backplate and workstation, the edge portion of workstation is provided with sliding slot, rack is inverted U type, the base of rack is connected in sliding slot, laser head is installed on rack, and reciprocating linear motion is made along rack, laser head is located just above workstation, the rear end of workstation is provided with detection platform, vertically installed backplate on the detection platform, the base is installed on for the fixed seat of five prism strip for fixing five prism strip, five prism strip is located just below laser head, five prism strip is used to refract laser beam emitted by laser head on backplate. Laser beam emitted by laser head is deflected using five prism strip, and compared with the initial light spot position on backplate, whether the optical path of laser head exists deflection is confirmed, verification operation is simple, can be directly integrated on existing laser cutting machine, with low use cost, strong practicality.

This invention discloses an optical system for an optically stabilized telescope with a field-planing lens, belonging to the field of optical lens technology. It includes an objective lens group GR1, a prism group GR2, a field-planing lens group GR3, and an eyepiece group GR4. The objective lens group GR1 includes a first objective lens G1, a second objective lens G2, a third objective lens G3, a focusing lens G4, and a field-stabilizing lens G5. The prism group includes a semi-pentaprism G6 and a roof prism G7. The field-planing lens group includes a first field-planing lens G8 and a second field-planing lens G9. The eyepiece group includes a first eyepiece lens G10, a second eyepiece lens G11, a third eyepiece lens G12, and a fourth eyepiece lens G13. This invention achieves focusing on targets at different distances by adjusting the focusing lens G4. Utilizing gyroscope feedback, the field-stabilizing lens G5 compensates for image shake caused by telescope jitter by translation, stabilizing the target originally in the center of the field of view. This allows the observer to quickly and stably observe, improving observation quality.

The application relates to a laser ranging scope and a use method thereof, which comprises, coaxially and sequentially, an objective lens, a transmitting beam splitter, a small objective lens, a half-pentaprism, a beam splitter prism, a roof prism, a graticule, an ocular group, a laser transmitting unit and a laser receiving unit; after light is split by the half-pentaprism, one route of white light is emitted out of the ocular group for human eye observation and aiming, and the other route of white light is used for image acquisition; the laser transmitting unit comprises a laser transmitter, a laser beam emitted by the laser transmitter is transmitted into the edge light transmission area of the objective lens through the transmitting beam splitter, is collimated through the objective lens and is shot towards a target to be measured, the reflected laser echo is reversely transmitted, is split by the beam splitter prism and is incident to the laser receiving unit, distance measurement operation is completed by a photoelectric sensor and a signal processing circuit integrated in the laser receiving unit, and the obtained distance measurement information is displayed through a liquid crystal screen. The application builds a white light imaging light path and a laser transmitting and receiving light path by means of existing optical components, the overall layout is reasonable and compact, and aiming and rapid distance measurement can be considered.

The application provides a precision in-situ detection and adjustment system for an inner cavity of a quality frame, and belongs to the technical field of precision machining and measurement. The five-prism device comprises a five-prism, the five-prism comprises a first incident surface, a first exit surface adjacent to the first incident surface, a first shielding surface, and two side surfaces; the included angle between the first incident surface and the first exit surface is 90°, and the included angle between the adjacent side surfaces of the inner cavity of the quality frame to be detected is also 90°; the first shielding surface is provided with a first light shielding device. During the detection process, the five-prism device is arranged in the cavity of the quality frame, and is arranged on a first base together with the quality frame; the autocollimator is aligned with the first incident surface; the parallel light emitted by the autocollimator is transmitted from the first incident surface through the first side surface, is deflected by 90°, is emitted from the first exit surface, and acts on the second side surface in the form of a crosshair to determine the perpendicularity error between the first side surface and the second side surface.

The invention relates to the technical field of optical instruments, and discloses a pentaprism light path adjusting device adaptive to a vertical mounting rotating shaft, which comprises a rack, the outer wall of the rack is provided with an adaptive mechanism, the bottom of the outer wall of the rack is fixedly connected with a partition plate, and the bottom of the outer wall of the partition plate is fixedly connected with a bearing rod. A connecting plate is fixedly connected to the bottom end of the outer wall of the bearing rod, a buffer mechanism is arranged at the top of the outer wall of the connecting plate, the adaptive mechanism comprises a fixing plate, and the bottom of the outer wall of the fixing plate is fixedly connected to the inner wall of the rack. According to the invention, the fixed plate provides stable support and is tightly connected with the rotating box, the shaft body in the rotating box is responsible for accurately controlling the angle of the adjusting part, the connecting column and the rotating column are in sliding fit through the annular groove and the ball, so that the rotating friction force is obviously reduced, the operation smoothness and durability are improved, the reflecting plate is stably mounted through the longitudinal plate, and the light path collimation is integrally ensured; the off-axis error is effectively reduced, and light path deviation is avoided.

The application provides an optical element position measurement system of a large aperture telescope, which controls staggered output of at least three wideband light beams from a wideband light source through an optical switch, each wideband light beam is irradiated onto a five-prism through a photonic lead, the five-prism reflects the wideband light beam onto a first reflecting surface, and the first reflecting surface reflects the wideband light beam onto a second reflecting surface, the second reflecting surface reflects the wideband light beam onto a multimode optical fiber, the multimode optical fiber transmits the wideband light beam to a wavelength division multiplexer for wave division, and a back-end joint point detector obtains light information of the wideband light beam, and the light information is calculated through a calculation network to obtain six-dimensional position information of the optical element. The application can effectively measure the position data of the optical element of the large aperture telescope, solves the problem of difficult position measurement of the optical element of the large aperture telescope, and performs element adjustment and error correction based on the measurement data, avoids repeated movement of the optical element, and can predict and correct imaging errors.