604 results about "Eyepiece" 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.

The invention provides an endoscope imaging system and a hard tube type endoscope, and belongs to the technical field of optical imaging, the endoscope imaging system comprises an objective lens, a relay lens and an ocular lens of an object space telecentric structure, the objective lens comprises a first lens, a second lens, a third lens with positive focal power and a bonding lens group with positive focal power, the second lens is a steering prism, the image side surface and the object side surface of the first lens are aspheric surfaces, the balsaming lens group comprises a fourth lens, a fifth lens and a sixth lens, the fourth lens is a doublet lens, the fifth lens is a triplet lens, the sixth lens is a doublet lens, the relay lens comprises an odd number of rod lens groups which are arranged at intervals, and the rod lens groups are arranged at intervals. The eyepiece comprises a seventh lens, an eighth lens and a ninth lens, and the seventh lens, the eighth lens and the ninth lens are all doublet lenses. By optimizing the structural design of the optical system, the defocusing amount is reduced, seamless switching of visible light and near-infrared light dual-mode imaging can be achieved, and meanwhile high-quality imaging is achieved.

A wearable display system includes one or more nanowire LED micro-displays. The nanowire micro-LED displays may be monochrome or full-color. The nanowire LEDs forming the arrays may have an advantageously narrow angular emission profile and high light output. Where a plurality of nanowire LED micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, for example, an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.

A look-in type wide-field video display apparatus includes an ocular optical system (OC), a circular polarizing plate, and a display device (D) positioned in order from a user's eye side. The OC includes a first lens (L1) and a second lens (L2) positioned in order from the user's eye side, a surface on the user's eye side in the L1 is aspherical, a surface on a D side in the L1 is planar or approximately planar, and a reflective polarizing plate and a ¼-wavelength plate are laminated on the surface on the D side in this order from the user's eye side, a surface on the user's eye side in the L2 is aspherical, and is convex toward the user's eye side around an optical axis of the OC or is approximately planar, and a surface on the D side in the L2 is aspherical convex toward the D side.

A microscope assembly includes: a main body with a connector, an analog optical assembly with a monocle having a connector suitable for being removably connected to the connector of the main body for operating in analog mode; a digital optical assembly having a connector suitable for being removably connected to the connector of the main body for operating in digital mode; and a smartphone having a display and a wireless transceiver; the digital optical unit including a camera of digital type with a wireless transmitter configured to communicate with the wireless transceiver of the smartphone, and a holder suitable for holding the smartphone.

A wearable display system includes one or more emissive micro-displays, e.g., micro-LED displays. The micro-displays may be monochrome micro-displays or full-color micro-displays. The micro-displays may include arrays of light emitters. Light collimators may be utilized to narrow the angular emission profile of light emitted by the light emitters. Where a plurality of emissive micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, e.g., an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.

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 digiscoping system may include an adapter configured to attach to a camera device and an eyepiece configured to attach to an optic. The adapter includes a base with one or more magnets configured to magnetically couple to one or more magnets of a camera device, one or more openings, one or more aperture magnets disposed about each of the one or more openings, and one or more stopping components configured to align with an alignment magnet of the camera device. The eyepiece includes a central opening and one or more recesses configured to be removably coupled to the one or more aperture magnets. The digiscoping system is configured to removably secure and align one or more camera lenses of the camera device with an optic when the eyepiece is coupled about an optical axis of the optic.

The invention relates to the technical field of optical instruments, and provides a dimple telescope system based on a double-phase regulation and control super lens and a design method thereof, and the dimple telescope system comprises an objective lens, an eyepiece, a first super lens and a second super lens. The first super lens is arranged at the imaging plane position of the objective lens, is a local phase modulation type super lens and is used for implementing local phase modulation on an imaging area; and the second super lens is arranged at the pupil entrance plane position of the eyepiece, is a continuous phase type super lens, and is used for performing phase compensation and wavefront matching on the wavefront passing through the eyepiece. According to the invention, the double-phase collaborative design of the image plane local phase modulation superlens and the entrance pupil plane continuous phase compensation superlens is introduced into the Galileo telescope system, so that the unification of local high-resolution fovea imaging in the view field and the stability of the full-view-field image quality is realized on the premise of not changing the original optical path structure; and the aberration interference problem caused by local modulation of a single super lens is avoided.

The invention relates to a calibration device and a calibration method of a low-altitude target early warning detection system, and belongs to the technical field of equipment calibration, the calibration device of the low-altitude target early warning detection system comprises a visible light sighting telescope and an electronic eyepiece which are fixed on radar equipment, the electronic eyepiece is arranged at the exit pupil position of the visible light sighting telescope, and the electronic eyepiece is connected with the visible light sighting telescope. The image acquisition module is used for acquiring analog images acquired by the visible light sighting telescope based on the eyepiece and converting the analog images into digital images; the processor is in communication connection with the electronic eyepiece and is used for acquiring the azimuth angle of the first servo motor; the pitching angle of the visible light sighting telescope is controlled to the target angle; acquiring an azimuth angle of a second servo motor; and based on the azimuth angle of the first servo motor, the azimuth angle of the second servo motor and the target angle, carrying out space consistency calibration on the radar equipment and the photoelectric equipment. According to the invention, the calibration complexity of the low-altitude target early warning detection system is effectively reduced, and the calibration efficiency is improved.

An eyepiece device configured to display an image to an eye is provided. The eyepiece device includes a waveguide, an indentation layer, and a projection module. The waveguide has a first surface, a second surface opposite to the first surface, an input coupler located at the second surface, and an output coupler located at the second surface. The indentation layer is disposed on the first surface and has a third surface facing away from the waveguide, wherein the third surface has a plurality of indentations configured to scatter an ambient light incident thereon, so as to reduce interference with a user's perception of the image. The projection module is configured to project an image beam to the input coupler, wherein the image beam travels in the waveguide and is then transmitted to the eye through the output coupler. A waveguide module is also provided.

The utility model discloses a device for assisting in visual inspection of object size, which belongs to the technical field of ore measurement, solves the problem that ore cannot be accurately measured, so that ore exceeds the standard, and a draw shaft is blocked, and comprises a hollow circular truncated cone-shaped shell, an eyepiece is arranged at the upper bottom of the shell, an objective lens is arranged at the lower bottom of the shell, and a size adjusting device is arranged on the objective lens; the size adjusting device comprises a base, a size scale strip is arranged on one side of the base, a threaded shaft and a gear shaft are arranged in the base, transmission gears are arranged at the upper end and the lower end of the gear shaft respectively, the threaded section of the threaded shaft is rotationally connected with the transmission gear at one end of the gear shaft, and single-face racks are rotationally connected to the two sides of the transmission gear at the other end of the gear shaft respectively. Pointers are respectively arranged on the single-sided racks. According to the utility model, an operator can be assisted to quickly and visually inspect whether the size of the large ore block is within a specified range, so that the well entering rate of the large ore block exceeding the standard is reduced, the size of the ore entering the well is more accurately controlled, and the production efficiency is improved.

The application belongs to the technical field of eyepiece manufacturing, and discloses a flat-field eyepiece optical system, which is characterized in that: an eyepiece first lens, an eyepiece second lens, an eyepiece third lens, an eyepiece fourth lens, an eyepiece fifth lens, an eyepiece sixth lens, an eyepiece seventh lens, an eyepiece eighth lens and an eyepiece ninth lens are sequentially arranged along the optical axis direction from the object side to the image side, the focal length is 30 mm, the field of view is 70°, and the maximum distortion is -15.1761%.

The present application provides an augmented reality display device for providing an augmented reality image to a user's eye. The augmented reality display device includes a curved eyepiece, a plurality of first micromirrors, and two first displays. The first micromirrors are disposed on the curved eyepiece. The two first displays are disposed on opposite sides of the curved eyepiece, respectively. Each of the first displays is configured to emit a first image beam. The first micromirrors are configured to image the two first image beams emitted by the two first displays onto a retina of the eye to form the augmented reality image. The first micromirrors form a horizontal field of view for the eye that falls within a range of 80 degrees to 110 degrees.

Provided are multi-wavelength phototherapy devices, systems and methods for the treatment of a disorder or disease, including multi-wavelength low level light therapy (“PBM”), in particular to multi-wavelength PBM and other phototherapy systems and methods for improving functionality in and / or restoring functionality to a cell and / or tissue through the coordinated and targeted delivery to the cell or tissue of two or more doses of light having distinct wavelengths, wherein the two or more doses of light, when delivered in a coordinated fashion, can stimulate the activity of two or more light sensitive factors that, when activated, provide and / or enhance a desired target cell functionality. Ophthalmic phototherapy devices, systems, and treatment methods to expose an eye to selected multi-wavelengths of light to promote the healing of damaged or diseased eye tissue. The devices include a housing having an interior; an eyepiece disposed on the housing and configured and arranged for placement of an eye of the patient adjacent the eyepiece; a first light source producing a first light beam having a first therapeutic wavelength and disposed within the housing; a second light source producing a second light beam having a second therapeutic wavelength and disposed within the housing, where the second therapeutic wavelength differs from the first therapeutic wavelength by at least 25 nm.

The present application provides an optical system, an eyepiece, and an optical device. The optical system comprises a display screen and a second pancake composite film which are sequentially arranged along an optical axis, wherein the display screen is used for displaying image information; a transflective film and a first pancake composite film are provided between the display screen and the second pancake composite film; the transflective film or the first pancake composite film is close to the display screen; and the first pancake composite film, the transflective film, and the second pancake composite film are used for folding light emitted by the display screen and then transmitting the light to human eyes. The optical system, the eyepiece, and the optical device provided by the present application effectively reduce the volume and weight of the optical system, thereby reducing production costs.

An observation optical system includes a display element and an eyepiece lens disposed on an eyepoint side of the display element. The eyepiece lens includes a first lens having positive optical power, a second lens having negative optical power, and a third lens consecutively in order from closest to a display element side to the eyepoint side. In a case where a half value of a longest diameter of a display region in the display element is denoted by H, and a focal length of the eyepiece lens in a state where diopter is −1 diopter is denoted by f, the observation optical system satisfies a conditional expression represented by 0.35<H / f<0.6.

An optical amplification device with a replaceable lens group comprises a supporting unit, a lens bracket unit and a lens group unit. The glasses frame unit is arranged on the supporting unit and comprises two supporting arms and a mounting arm which extends in the left-right direction and is connected with the supporting arms. And the lens group unit comprises an objective lens group arranged on the support arm and an eyepiece group which can be mounted on the mounting arm in a replaceable manner and is opposite to the objective lens group at an interval in the front-back direction. The eyepiece group is provided with a first positioning piece which is detachably connected to the mounting arm; the lens group unit is used for constructing an image of an amplified object, and the image is reflected to an optical path of eyes of a user by the eyepiece group. According to the utility model, the eyepiece group can be replaced according to the use situation, and the use is convenient.

1. The name of the design product: telescope operating switch. 2. The use of the design product: used as a telescope; the use of the partial design: set on the upper surface of the eyepiece cup side of the main body of the telescope, used as an operating switch for switching the operating mode. 3. The design points of the design product: the shape shown in the partial design. 4. The picture or photo that best shows the design points: perspective view 1.

The invention discloses a low-distortion large-magnification all-plastic low-cost eyepiece, and relates to the technical field of lenses, the eyepiece comprises an eyepiece body, the eyepiece body is internally provided with an optical system, the optical system is composed of a diaphragm STO, a first lens, a second lens, a third lens, protective glass and a screen, the first lens, the second lens, the third lens and the protective glass are all made of resin materials, the diaphragm STO is located at the exit pupil position of the eyepiece, the aperture diameter is 3 mm, and the diaphragm STO is used for controlling the clear aperture and the light beam emission angle. The low-distortion large-magnification all-plastic low-cost eyepiece disclosed by the invention has the technical effects of more compact overall design, lighter weight and lower production cost.

A firearm-scope-attachable diopter lens device is provided. The device is comprised of an eyepiece-mounted optical accessory configured to affix securely over the eyepiece of a standard firearm scope without requiring any permanent modification to the scope itself. The device comprises a housing with at least one optically-aligned diopter lens, available in a range of diopter strengths to correct myopia, hyperopia, or astigmatism. In certain embodiments, the lens is installed in a removable cartridge that interfaces with the housing via a fastener such as a magnetic ring, twist-lock, or bayonet mechanism. Selective lens tinting may be applied to enhance contrast and reduce glare in varying light conditions. An optional micro-adjustment ring concentrically aligned with the lens permits fine diopter calibration in increments of ±0.25 diopters. A protective flip-up cap with a silent hinge mechanism and optional locking feature is integrated to shield the lens from debris when not in use.

The utility model discloses a multiple adjustment night vision lens for optical experiments, which belongs to the field of optics and comprises a low-light night vision device composed of an objective lens, an image intensifier and an eyepiece, the objective lens is connected with the eyepiece through a connecting tube, and the image intensifier is located inside the connecting tube. Compared with the prior art, the utility model has the advantages that the distance between the objective lens and the image intensifier is adjusted through the engagement connection of the displacement thread at the outer wall end of the objective lens and the translation screw at the output end of the brushless motor, and the brushless motor is controlled by the remote control system; in this way, the angle needing to be rotated can be rapidly determined according to the displacement data of the displacement thread of the objective lens, and rapid rotation is completed through the brushless motor, so that the adjustment data of the magnification of the objective lens is greatly increased.

The utility model relates to a liquid lens zoom foggy vision system, training instrument and optometry unit, foggy vision system is equipped with eyepiece lens cone, front lens cone, rear lens cone and objective lens cone in proper order along the optical path, the front lens cone is equipped with first lens and second lens in proper order, the rear lens cone is equipped with liquid lens and third lens in proper order, and the objective lens cone is equipped with second lens and third lens in proper order. The front lens barrel and the rear lens barrel form a variable-focus liquid lens telescopic system; a foggy view image display panel is arranged in the objective lens barrel and used for playing foggy view animations. The system further comprises a controller, and the liquid lens, the objective lens cone and the fog view image display panel are electrically connected with the controller. According to the fogging system, the zoom lens can be controlled to zoom through a circuit, video animation is played in combination with the fogging image display panel, switching of different images is achieved, the zoom response is fast, a complex structure and switching images are not needed, the structure is simple and small, the attention of trainees is better attracted, and the fogging effect is improved.

The embodiment of the present application provides an optical telescopic device and a multi-pupil eyepiece structure, the multi-pupil eyepiece structure comprises a first lens group with positive focal length, a second lens group with negative focal length and a third lens group with positive focal length arranged in sequence from an eye observation position to an imaging surface; the first lens group comprises a first lens for converging light; the second lens group comprises a second lens for compensating spherical aberration caused by the first lens group; the third lens group comprises a third lens with positive focal length and a fourth lens with negative focal length, the third lens is used for converging light, and the fourth lens is used for balancing residual aberration; the first lens, the second lens, the third lens and the fourth lens can meet imaging under different exit pupil conditions in multiple configurations.

The utility model discloses an all-directional angle measurement engineering construction measuring device, which relates to the technical field of engineering surveying, and comprises a triangular bracket, a placing seat is arranged on the triangular bracket, a theodolite main body is rotatably arranged on the placing seat, an observation eyepiece is arranged in the middle of the upper end of the theodolite main body, and an observation lens is arranged on the observation eyepiece. According to the theodolite disclosed by the utility model, through the synergistic effect of the bidirectional threaded rod, the sliding piece, the adjusting block and the clamping plate in the adjusting assembly, the angle of the observation eyepiece can be accurately fixed, and in engineering construction measurement, the observation eyepiece can be accurately adjusted, so that the measurement accuracy is improved, and the measurement precision is improved. And the device can ensure that the angle of the observation eyepiece cannot be changed due to external force interference or self-looseness in the measurement process, so that the accuracy and the reliability of measurement data are ensured, and a reliable measurement basis is provided for construction engineering.

The utility model relates to observation equipment for PC flocculus drying, which comprises an outer lens cone and an inner lens cone, the outer lens cone is sleeved on the inner lens cone, the outer lens cone and the inner lens cone are rotatably sealed, one end of the inner lens cone is fixedly connected with an eyepiece, the other end of the inner lens cone is fixedly connected with a sight glass, and the inner lens cone is fixedly connected with a driving plate at one end of the sight glass. A rail groove is formed in the driving plate, a plurality of light shielding plates which are circumferentially and equally divided and rotationally open or close the sight glass are connected in the rail groove, the sight glass is covered when the light shielding plates are closed, and the light shielding plates make contact with the sight glass. According to the observation equipment for PC flocculus drying, the inner lens cone rotates to drive the light shielding plate which is rotationally opened and closed, the light shielding plate is rotationally opened for observation when used, the light shielding plate is rotationally closed to avoid pollution when not used, and dust attached to the sight glass can be removed when the light shielding plate is rotationally opened and closed; out-of-control or equipment parking caused by the fact that the drying condition cannot be observed due to sight glass pollution is avoided.

This invention discloses a digital sight, comprising a scope body, a lens assembly, a mechanism assembly, a battery assembly, an eyepiece assembly, and a control assembly. The lens assembly is fixedly connected to the front end of the scope body, the eyepiece assembly is fixedly connected to the rear end of the scope body, the battery assembly is located in the middle of the interior of the scope body, the mechanism assembly is located inside the scope body and between the lens assembly and the battery assembly, and the control assembly is located in the middle of the outer side of the scope body. A display component is located at the end of the battery assembly near the eyepiece assembly. The battery assembly has battery compartments with electrodes at both ends, and a hollow structure in the middle of the battery assembly with a connector plate. The connector plate has a protruding slot on the scope body. The mechanism assembly, control assembly, and electrodes are all electrically connected to the connector plate. This sight has a simple appearance, compact structure, and good user experience.

The medical photodynamic multispectral electronic endoscope relates to the technical field of endoscopes and comprises an eyepiece seat and an objective lens, one end of the eyepiece seat is connected with a light transmitting bundle, the objective lens is mounted at one end, far away from the eyepiece seat, of the light transmitting bundle, a mounting cavity is formed in the eyepiece seat, one side of the mounting cavity is provided with an opening, and the opening is communicated with the eyepiece seat. A mounting cavity is formed in the eyepiece base, a mounting shell is clamped in the mounting cavity, through holes are formed in the two ends of the mounting shell, an eyepiece body is clamped in the mounting shell, sliding grooves are formed in the inner walls of the two ends of the side, away from the opening, of the eyepiece base, sliding rods are fixedly arranged in the sliding grooves, and the rod walls of the sliding rods are movably sleeved with sliding blocks. According to the utility model, the eyepiece quick-changing structure is arranged on the eyepiece seat body, so that a doctor can quickly change different eyepieces in a short time without complicated dismounting and mounting operations, the examination time is greatly saved, and the clinical examination efficiency is improved.