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283 results about "Pupillary distance" patented technology
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Pupillary distance (PD) or interpupillary distance (IPD) is the distance measured in millimeters between the centers of the pupils of the eyes. This measurement is different from person to person and also depends on whether they are looking at near objects or far away. Monocular PD refers to the distance between each eye and the bridge of the nose which may be slightly different for each eye due to anatomical variations. For people who need to wear prescription glasses consideration of monocular PD measurement by the optician helps to ensure that the lenses will be located in the optimum position. Purchasing glasses online can be a potential problem if the PD measurement isn't available. In both the UK and most of Canada (excluding British Columbia), the PD measurement is classed as a dispensing tool rather than a part of the actual prescription of the person whose eyes were tested, thus there is no obligation for a PD to be provided on patient request. Whilst PD is an optometric term used to specify prescription eyewear, IPD is more critical for the design of binocular viewing systems, where both eye pupils need to be positioned within the exit pupils of the viewing system. These viewing systems include binocular microscopes, night vision devices or goggles (NVGs), and head-mounted displays (HMDs). IPD data are used in the design of such systems to specify the range of lateral adjustment of the exit optics or eyepieces. IPD is also used to describe the distance between the exit pupils or optical axes of a binocular optical system. The distinction with IPD is the importance of anthropometric databases and the design of binocular viewing devices with an IPD adjustment that will fit a targeted population of users. Because instruments such as binoculars and microscopes can be used by different people, the distance between the eye pieces is usually made adjustable to account for IPD. In some applications, when IPD is not correctly set, it can lead to an uncomfortable viewing experience and eye strain.
Stereomicroscope
The invention relates to the technical field of microscopes, in particular to a stereomicroscope which comprises an eyepiece, an interpupillary distance adjusting assembly, an optical hinge set, a prism steering set, a distributed reflection light path assembly and a continuous zoom objective lens set. The distributed back-shooting light path assembly comprises a negative lens group, a positive lens, a negative lens and a positive lens group, the negative lens group is arranged between the prism steering group and the continuous zoom objective lens group, the positive lens is arranged between the optical hinge group and the prism steering group, and the negative lens and the positive lens group are arranged between rectangular prisms in the optical hinge group; a negative lens group, a positive lens group, a negative lens group and a positive lens group are sequentially arranged among all parts of the stereomicroscope, so that the space layout of a mechanical structure is combined, the aperture of a light beam is adjusted, interception of the prism to the light beam is reduced, and off-axis vignetting is reduced; the technical problems of large off-axis vignetting and poor imaging quality caused by the fact that a light path passes through a plurality of groups of prisms in a stereomicroscope in the prior art are solved, and the overall imaging requirement is met.
Owner:YUYAO SHENGDA INSTR CO LTD
High-altitude falling simulation system based on VR equipment
The invention discloses a high-altitude falling simulation system based on VR equipment, and relates to the technical field of virtual reality simulation, and the system comprises a data collection module which collects the pupil distance and initial sight line data of a user; the visual disturbance module is used for dynamically adjusting local visual disturbance of a corresponding area in the high-altitude virtual scene based on the gaze data to form a visual disturbance effect; the psychological index calculation module is used for calculating an anxiety index and a focus drift speed by adopting a time sequence convolutional neural network according to the visual disturbance effect and the eye movement behavior of the user to obtain an anxiety index and a focus drift speed index; and the disturbance adjustment module adaptively adjusts the frequency and amplitude of the visual disturbance effect by adopting a method of combining fuzzy logic control and adaptive gain adjustment to obtain disturbance rhythm parameters. According to the method, the personalized matching ability and training effectiveness in psychological behavior intervention and virtual high-altitude adaptation training are improved.
Owner:江苏小七智能科技有限公司
Image correction method and system for binocular diffraction AR intelligent glasses
The invention relates to the technical field of image processing, and discloses an image correction method and system for binocular diffraction AR intelligent glasses. The method comprises the following steps: calculating a dispersion response parameter of a diffractive optical element in the AR glasses in a visible light wave band; respectively carrying out dispersion distortion detection on the left eye image and the right eye image in the AR glasses to obtain a left eye dispersion distortion feature and a right eye dispersion distortion feature; interpupillary distance change data of a user is obtained, effective aperture offset calculation is carried out on the diffractive optical element, and interpupillary distance compensation parameters are obtained; performing coupling calculation on the left eye dispersion distortion feature, the right eye dispersion distortion feature and the interpupillary distance compensation parameter to obtain a binocular dispersion correction matrix; and performing dispersion compensation on the left eye image and the right eye image to obtain a dispersion correction image, and outputting the dispersion correction image to a display module of the AR glasses. The method can respond to the pupil distance change of the user in real time, automatically adjust dispersion correction parameters, realize accurate and comprehensive dispersion correction, and ensure the stability of dispersion correction performance.
Owner:SHENZHEN ANZHIYAN TECH CO LTD +1
Binocular and focusing device
The invention relates to a binocular having two tubes, which are connected to one another by means of a hinged bridge pivotable about a hinge axis for adjusting the interpupillary distance, wherein an axially displaceable focusing means is arranged in each one of the two tubes, and wherein a common focusing device for displacing the focusing means is formed, wherein the focusing device comprises a housing and a focusing knob rotatable about a rotational axis and the rotational axis is arranged coaxially to the hinge axis, and wherein the focusing knob is rotationally coupled to a focusing gear and the focusing gear, in each case, comprises a push rod, by means of which the focusing gear is, in each case, coupled to one of the two focusing means, wherein a direction of a back-and-forth displacement of the push rod and a direction of the hinge axis are aligned obliquely with respect to each other.
Owner:SWAROVSKI-OPTIK AG & CO KG
Long-exit-pupil-distance broadband common-aperture composite simulation optical system
The invention provides a long-exit-pupil-distance broadband common-aperture composite simulation optical system, and belongs to the technical field of target scene composite analog simulation. A broadband objective lens group A, a space beam combiner group B and a long-wave infrared projection lens group D are sequentially arranged in the optical system from left to right along light, a visible light projection lens group C is located on the upper side of the space beam combiner group B, and a long-wave infrared projection lens group C is located on the lower side of the space beam combiner group B; a visible light image plane is positioned on the right side of the visible light projection lens group C; the medium-wave infrared projection lens group E is located on the lower side of the space beam combiner lens group B, the medium-wave infrared image surface is located on the lower side of the medium-wave infrared projection lens group E, the long-wave infrared image surface is located on the right side of the medium-wave infrared image surface, and the exit pupil position is located on the left side of the broadband objective lens group A; the problem that a single-channel target modulo system only adapts to simulation of imaging guidance equipment of a specific wave band and is not suitable for semi-physical simulation tests of three-mode composite imaging guidance equipment and two-mode composite imaging guidance equipment is solved.
Owner:HARBIN XINGUANG OPTIC-ELECTRONICS TECH CO LTD
Distance measurement system based on artificial intelligence
The invention discloses a distance measurement system based on artificial intelligence, and the system can achieve the automatic grabbing of size parameters of glasses. According to the system, a camera is adopted to capture a glasses image, a gyroscope and an artificial intelligence algorithm are adopted to recognize the spatial position of glasses, spatial coordinates of feature points are obtained, the pixel scale # imgabs0 # of the image is obtained subsequently based on the physical geometrical relationship of the glasses and the real pupil distance of a user, and finally the size parameters of the glasses are obtained. The glasses parameters comprise a glasses width, a pupil distance, a front inclination angle, a surface bending angle and a glasses-eye distance; the camera is an apple panel built-in camera; the gyroscope can obtain the pitch angle # imgabs1 #, the deflection angle # imgabs2 # and the inclination angle # imgabs3 #, so that the head posture of a glasses wearer is obtained, and the size measurement precision of the glasses is greatly improved. According to the system, automatic measurement of glasses parameters is realized, the working intensity of manual glasses matching is greatly reduced, and digital upgrading of high-end customized glasses is realized.
Owner:BEIJING BINFENG ANSHI TECH CO LTD
Force-offsetting mechanisms for interpupillary distance adjustments in artificial-reality devices
Artificial-reality devices may include left and right eyecups for respectively viewing left and right images. A flexible shroud membrane may be connected to the left and right eyecups. The artificial-reality devices may also include an interpupillary distance adjustment mechanism for adjusting a distance between the left and right eyecups and a force-offsetting mechanism configured to augment a force applied to adjust the distance between the left and right eyecups. Various other devices, systems, and methods are also disclosed.
Owner:META PLATFORMS TECHNOLOGIES LLC
Eyepiece lens
The utility model relates to an eyepiece lens, which sequentially comprises a first lens with positive focal power, a second lens with positive focal power, a third lens with negative focal power and a fourth lens with positive focal power along an optical axis from an object side to an image side, the focal length F1 of the first lens and the combined focal length F23 of the second lens and the third lens meet the following relation:-0.99 < = F1 / F23 < = 0.29. The eyepiece lens at least has one of the characteristics of large exit pupil distance, low cost, light weight, small volume, simple structure and the like.
Owner:SUNNY OPTICS(ZHONGSHAN) CO LTD
Unity engine-based image fusion stereoscopic display method and system
The invention provides an image fusion stereoscopic display method and system based on a Unity engine, and relates to the technical field of computer graphics and virtual reality. According to the method, a left-eye camera and a right-eye camera are configured in a Unity scene, left and right view angle images are collected according to interpupillary distance parameters, and left-eye and right-eye rendering textures are generated; generating a UI texture according to the Canvas type of the UI element, executing parallax compensation, pixel alignment and image fusion processing through a Compute Shader, and superposing image layers according to the transparency of the UI texture to generate a synthetic display image; and introducing a previous frame result into the fused image, and realizing time continuous output based on an inter-frame smooth function. And outputting the synthesized texture to a device supporting a plurality of stereoscopic display modes through a graphic rendering pipeline. According to the method, efficient fusion of the 3D image and the UI is realized, the rendering efficiency and the visual immersion are improved, and the method is suitable for scenes such as virtual reality, augmented reality and digital twinning.
Owner:JIANGSU LIREN TECH CO LTD
Image adjusting method based on XR glasses, XR glasses, electronic device and medium
The invention relates to an image adjusting method based on XR glasses, the XR glasses, an electronic device and a medium, the XR glasses comprise a first display screen and a second display screen, the pupil distance of a user, the lens spacing of the XR glasses, the distance of a virtual target and the focal length of the virtual target are obtained; calculating convergence angles according to the interpupillary distance, the lens spacing, the distance of the virtual target and the focal length of the virtual target; adjusting the depth of field and the position of the virtual target in the XR glasses according to the convergence angles; and the convergence conflicts in the convergence adjustment process are relieved, and the visual fatigue of the user is relieved.
Owner:SUZHOU JISHI MEDICAL TECHNOLOGY CO LTD
Method and device for adjusting depth of stereoscopic image
A method for adjusting a depth of a stereoscopic image includes the following. A first disparity correction amount is obtained according to a distance between centers of two lenses of a stereoscopic camera and an interpupillary distance (IPD) of a first observer. A second disparity correction amount is obtained according to a difference between image distances of a stereoscopic display and the stereoscopic camera at zero disparity. A third disparity correction amount is obtained according to the IPD of the first observer and an IPD of a second observer. A stereoscopic image of an object photographed by the stereoscopic camera which has been corrected by the first disparity correction amount, the second disparity correction amount, and the third disparity correction amount is transmitted to the stereoscopic display. A device for adjusting a depth of a stereoscopic image is also provided.
Owner:ACER INC
Interpupillary distance estimation method
An interpupillary distance estimation method is implementable by an electronic computer and includes the operations of acquiring at least one 2D image of a user's face, locating on the 2D image two reference points corresponding to the pupils of the user, and measuring the distance in pixels between the two reference points. The method further includes measuring the diameter in pixels of the user's iris, and calculating the pixel-to-millimetre conversion ratio between a predetermined iris diameter expressed in metric units and the iris diameter measured in pixels. The predetermined pupil diameter is set equal to the value of the iris diameter most widespread in the world population according to data contained in an anthropometric database. A first estimation of the interpupillary distance is determined by multiplying the distance in pixels between the two reference points corresponding to the user's pupils by the pixel-to-millimetre ratio calculated previously.
Owner:LUXOTTICA GRP SPA
Eye health monitoring device, method and system and storage medium
The invention provides eye health monitoring equipment, method and system and a storage medium, and relates to the technical field of eye monitoring. The eye health monitoring equipment provided by the invention is a sensor frame which can be mounted on glasses and is used for monitoring and researching eye health. The equipment is provided with a compact wearable frame, a built-in infrared eye camera, an independently addressable infrared light emitter, an RGB (Red, Green, Blue) camera facing the outside, an inertial measurement unit (IMU), a plurality of integrated sensors such as an ambient light and proximity sensor, and a control system. Parameters of the plurality of sensors can be configured in real time and data output of the plurality of sensors can be synchronized through a control system, so that the equipment can support various eye health applications including staring estimation, interpupillary distance measurement, diopter estimation, lacrimal river height analysis and attention monitoring. According to the technology, the limitation of an existing system is overcome, and a unified platform is provided for advanced eye health diagnosis and research in clinical and real environments.
Owner:南通诺瞳奕目医疗科技有限公司
Binocular visual function training glasses used after strabismus operation
The invention discloses a pair of binocular visual function training glasses used after strabismus operation, and relates to the technical field of visual rehabilitation training. The interpupillary distance adjusting mechanism is mounted on the upper side of the inner wall of the glasses frame; the two angle adjusting mechanisms are mounted on the two sides of the bottom end of the interpupillary distance adjusting mechanism respectively; the angle adjusting mechanism comprises an adjusting frame, a pitch angle driving assembly, a rotating frame, a lens cone and a miniature display screen. The angle and the position of the visual training pattern displayed by the micro display screen can be dynamically adjusted according to the specific strabismus type and the postoperative recovery condition of a patient, so that the capacity of coordinating the two eyes of the brain visual center is actively exercised and awakened, recovery of the visual functions of the two eyes is promoted, and the recovery effect is improved. By means of the design, the defect of a fixed parameter training lens in the aspect of adaptability is overcome, the binocular cooperation function of the visual center is actively activated through personalized parameter adjustment, and the postoperative binocular fusion capacity and the recovery efficiency of stereoscopic vision are remarkably improved.
Owner:SHENZHEN LONGHUA DISTRICT MATERNAL & CHILD HEALTH HOSPITAL (SHENZHEN LONGHUA DISTRICT INFANT CARE SERVICE GUIDANCE CENTER SHENZHEN LONGHUA DISTRICT HEALTH EDUCATION INSTITUTE)
Adjusting interpupillary distance and eye relief distance of a headset
A headset includes an optical assembly, an adjustment assembly, and a measurement component. The measurement component is configured to measure an interpupillary distance provided by an adjustment assembly in a first direction and an eye relief distance provided by the adjustment assembly in a second direction, where the first direction is orthogonal to the second direction. The measurement component includes a first rheostat configured to measure the interpupillary distance and a second rheostat configured to measure the eye relief distance, wherein the second rheostat is placed parallel to the first rheostat. The measurement component further includes a linkage configured to translate a motion of the adjustment assembly in the second direction to the first direction.
Owner:META PLATFORMS TECHNOLOGIES LLC
Pupil distance adjusting structure and multi-view observation equipment
The utility model provides an interpupillary distance adjusting structure and multi-view observation equipment. The interpupillary distance adjusting structure comprises a bridge body. And the bridge connecting piece is used for rotatably connecting a lens cone assembly to the bridge body, and the bridge connecting piece is provided with an insertion part. The limiting adjusting assembly comprises a clamping plate connecting piece and a rotary adjusting piece, the bridge connecting piece is connected with the bridge body through the clamping plate connecting piece, a containing hole is formed in the clamping plate connecting piece, the rotary adjusting piece is rotatably arranged on the inserting part in a sleeving mode, and an assembling face between the rotary adjusting piece and the inserting part comprises an inclined face; the rotary adjusting part is rotatably arranged in the containing hole, a limiting structure is arranged between the inner circumferential face of the containing hole and the outer circumferential face of the rotary adjusting part, and the limiting structure is used for limiting the rotation limit range of the rotary adjusting part in the containing hole.
Owner:YANTAI RAYTRON TECH CO LTD
Head-mounted display devices
This invention discloses a head-mounted display device, relating to the field of smart wearable technology. The head-mounted display device includes a housing, two optical modules, and an adjustment assembly. A receiving cavity is formed within the housing. The two optical modules are spaced apart in the left-right direction and movably mounted within the receiving cavity. Each optical module includes a lens barrel, and each lens barrel has a lens. The adjustment assembly extends laterally on the side of the two lens barrels away from the lenses. The adjustment assembly includes an adjustment body, a clutch structure, and a first and second mating structures corresponding to each optical module and arranged in the front-back direction. When adjusting the interpupillary distance, the clutch structure controls the first mating structure to engage with the adjustment body and the second mating structure to disengage from the adjustment body. When adjusting the focal length, the clutch structure controls the second mating structure to engage with the adjustment body and the first mating structure to disengage from the adjustment body. The technical solution provided by this invention simultaneously achieves the adjustment of both the interpupillary distance and the focal length of the head-mounted display device.
Owner:GOERTEK INC
Handheld observation device
The utility model discloses a handheld observation device which is applied to the technical field of optical equipment. The handheld observation device comprises two monocular observation assemblies and a connecting structure, and the two monocular observation assemblies are arranged side by side in the first direction; each monocular observation assembly comprises a main body and an eyepiece, the main body extends along a second direction, the second direction is different from the first direction, and the eyepiece is arranged at one end of the main body along the second direction; the connecting structure is located between the two monocular observation assemblies, and the two monocular observation assemblies are detachably connected through the connecting structure, so that the two monocular observation assemblies form the binocular handheld observation equipment; the at least one monocular observation assembly can move in the first direction relative to the connecting structure so as to adjust the interpupillary distance between the two eyepieces. The handheld observation equipment is flexible and convenient to use, can realize the adjustment of the interpupillary distance between the two eyepieces so as to adapt to the use requirements of different interpupillary distances, and is flexible and convenient to use and good in applicability.
Owner:HANGZHOU MICROIMAGE SOFTWARE CO LTD
Interactive naked eye 3D scene dynamic adaptive construction method, system and device of cross-scale model
The invention discloses an interactive naked-eye 3D scene dynamic adaptive construction method of a cross-scale model, and relates to the technical field of civil engineering BIM + GIS. According to the method, a dynamic three-dimensional scene is constructed based on multi-source BIM + GIS data; adjusting the position and attitude parameters of the main camera according to the observer position; calculating the position and attitude parameters of the slave camera according to the interpupillary distance of the observer; according to the dynamically changing scene, calculating visual cone parameters of the master and slave cameras in real time; then, a viewport picture of the main camera is calculated based on forward perspective projection, a viewport picture of the slave camera is calculated based on oblique perspective projection, self-adaption is carried out on display equipment, a multi-viewport image is synthesized, picture interweaving is carried out, the picture is input into a naked eye 3D display screen, and real-time and multi-angle picture three-dimensional presentation is carried out through a real and three-dimensional BIM + GIS three-dimensional scene. Interactive camera operation and scene modification and re-rendering are supported, and the effect of intelligent design and intelligent construction result visualization is remarkably improved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD
Heat management for head-mountable device
A head-mountable device can provide a thermal mitigation system that effectively manages heat while also allowing adjustment of optical modules to accommodate particular users. For a given interpupillary distance to accommodate a user, different heat sinks can be provided with optimized fin patterns, lengths, or shapes. Other mechanisms for managing airflow, such as intake modules, can be provided with custom or adjustable characteristics to achieve different airflow patterns and thereby accommodate movement of the optical modules. Such customization and / or adjustability of thermal mitigations by can allow users to experience optimal performance from temperature-sensitive modules such as displays, cameras, sensors, circuitry, and the like.
Owner:APPLE INC
Head-mounted night vision device comprehensive hanger
The utility model discloses a comprehensive hanging rack for a head-mounted night vision device. The comprehensive hanging rack comprises a main hanging rack and two auxiliary hanging racks which are rotatably connected to the two ends of the main hanging rack, the auxiliary hanging frame comprises an adjusting base, an adjusting screw A, an adjusting screw B, a horseshoe base, an up-and-down dip angle adjusting hand wheel, a horizontal inner-and-outer corner adjusting hand wheel and a left-and-right eye interpupillary distance adjusting hand wheel. The interpupillary distance adjusting function can be achieved by rotating the left-right eye interpupillary distance adjusting hand wheel, the inside-outside inclination angle optical axis adjusting function can be achieved by rotating the horizontal inside-outside rotation angle adjusting hand wheel, and the left-right optical axis aligning function can be achieved by rotating the up-down inclination angle adjusting hand wheel. The utility model has the advantage of simultaneously supporting and mounting the single-cylinder night vision device and the double-cylinder night vision device.
Owner:KUNMING TENGRONG PHOTOELECTRIC TECHNOLOGY CO LTD
Adjustment method of waveguide display system, waveguide display system and observation equipment
The invention discloses an adjusting method of a waveguide display system, the waveguide display system and observation equipment, belongs to the technical field of optical display, and mainly aims at improving the binocular image combination effect, reducing the problems of ghosting, blurring and the like caused by mismatching of the optical center distance of the waveguide display system and the pupil distance of a user and improving the user experience. And a clear and stable visual picture is presented for a user. According to the main technical scheme, the adjustment method of the waveguide display system comprises the following steps: collecting pupil distance information of a user; comparing the user interpupillary distance information with optical center distance information of a waveguide display system, and generating an adjustment instruction according to a comparison result; and in response to the adjustment instruction, controlling the working state of the waveguide display system.
Owner:SHANDONG NORTH OPTICAL & ELECTRONICS
An automated verification device for an optometry apparatus
The application discloses an automatic verification device of an optometry instrument and relates to the field of optometry instrument verification. The device comprises a verification execution mechanism, a verification execution controller, a wireless control handle and a support. The verification execution mechanism is arranged on the support. The verification execution controller is electrically connected with the verification execution mechanism. The wireless control handle is in communication connection with the verification execution controller. The verification execution controller receives signals of the wireless control handle and provides power and control instructions for the verification execution mechanism through a wire. The verification execution mechanism comprises a rotating disc and simulated eyes arranged on the rotating disc. The application realizes automatic replacement of simulated eyes for optometry instrument verification. Simulated eyes for measuring spherical lenses, cylindrical lenses and pupil distances are combined together. The simulated eyes do not need to be frequently replaced. The probability of human contact with the simulated eyes is reduced. Multiple verification items can be completed at one time. The possibility of affecting the accuracy of detection data is reduced. Work efficiency is improved. Work cost is saved.
Owner:甘肃省计量测试检定东部分中心
Turnover mirror for visual training
The utility model discloses a turnover mirror for visual training, which comprises a mirror main body, and a turnover mirror bracket and a fixed mirror bracket which are connected with the mirror main body, the turnover mirror bracket and the fixed mirror bracket comprise mirror arms, two connecting seats, two mirror frames and two screws, the connecting seats are movably connected with the mirror arms and are fixedly connected with the mirror frames, and the two screws are fixedly connected with the mirror arms. The screw is used for locking and positioning the connecting seat, and the turnover mirror bracket is positioned in front of the fixed mirror bracket. The position of the lens frame can be changed, namely the positions of the lenses in the lens frame are controllable, interpupillary distance differences of different individuals are effectively adapted, accurate alignment of optical axes of the lenses and pupil positions of users is achieved, aberration and visual fatigue caused by sight line deviation can be remarkably reduced, the imaging effect can be optimized, and the imaging effect is improved. Therefore, clearer and more comfortable visual experience is provided, especially for users whose interpupillary distances are asymmetric or deviate from a conventional range, the adjustable interpupillary distance design can meet individual requirements, and it is ensured that each user can obtain the optimal optical performance.
Owner:BEIJING AOYING TECH CO LTD
Artificial intelligence gaze interface sensor (ai GIS): personalized biometric dual-camera foveal gaze tracking system with device-adaptive architecture for precise human gaze localization on digital and projected view planes
An Artificial Intelligence Gaze Interface Sensor (AI GIS) system and method for precisely tracking human gaze on a digital or projected view plane without head-mounted hardware. A context camera detects a user's face and matches it against stored biometric profiles using AI facial recognition, automatically loading personalized eye geometry, inter-pupillary distance and gaze calibration data. A conditional activation controller initializes a second Peregrine Foveal Camera (PFC), modeled after the dual-fovea retina of the Falco peregrinus, only upon confirmed eye detection. An AI algorithm triggers visual effects, hidden content, animations, gaze-based engagements and semantically mapped audio on the digital or projected plane based on gaze coordinate outputs, from a dedicated computational pipeline, correlated to the digital or projected plane. This invention serves as the sensing layer for U.S. application Ser. No. 18 / 395,290.
Owner:THOMAS CEDRIC DANIEL
Left eye and right eye switching device of monocular night vision device
The invention relates to the technical field of night vision devices, and provides a left and right eye switching device of a monocular night vision device, which comprises a head cover, and a bracket is detachably mounted on one side of the head cover. According to the invention, the screw rod is rotated by hand to move towards the outer side, the state of abutting against the U-shaped strip is released, then the movable block is pushed by hand to slide towards one side along the outer surface of the U-shaped strip, the pointers are moved to a proper position, and the distance between the two pointers can be observed by observing the scale marks, so that the distance is the same as the pupil distance of a user. Under the action of a limiting strip, a strip-shaped block can be prevented from rotating upwards reversely, so that a sliding block can be kept at a fixed position, the left-right moving distance of the monocular night vision device body can be properly adjusted according to different interpupillary distances of users, it can be guaranteed that the eyes of the users are aligned with an observation opening of the monocular night vision device body, and the user experience is improved. Therefore, the observation effect of the user is improved.
Owner:SHENZHEN RONGZHE PHOTOELECTRIC TECH DEV CO LTD
Head-mounted ophthalmic OCTA device
The present invention discloses a head-mounted ophthalmic OCTA device. The head-mounted ophthalmic OCTA device includes: a head-mounted shell, an optical path system and an adjustment mechanism, the adjustment mechanism is in transmission cooperation with the optical path system, and is at least used to move the optical path system to a specified position; wherein, the optical path system includes an imaging optical path and an auxiliary alignment optical path, the imaging optical path is at least used to collect image information of the detected eyeball, and the auxiliary alignment optical path is at least used to guide the gaze point position of the detected eyeball so that the detected eyeball is aligned in the pupil distance direction. The display screen used in the head-mounted ophthalmic OCT device (probe) provided by the present invention can display different static or dynamic images, and the image is flexible and changeable, which can meet the requirements of different types of detected objects, and can make the two eyes of the detected object look at the display screen at the same time, guide the gaze point of the eyeball of the detected object to be aligned, thereby alleviating the fatigue when using single-eye gaze.
Owner:CIXI INST OF BIOMEDICAL ENG NINGBO INST OF IND TECH CHINESE ACAD OF SCI NINGBO +1
Pupil Distance and Pupil Height Measuring Lamp
1. Name of the design product: Pupillary distance and pupil height measuring lamp. 2. Use of the design product: Used for ophthalmic optometry clinical examination to measure the pupillary distance and pupil height of patients. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view.
Owner:LIUPANSHUI AIER EYE HOSPITAL CO LTD