123 results about "Interpupillary distance" patented technology

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.

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.

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.

A method includes determining that an inter-pupil distance (IPD) between display lenses of a video perspective (VST) augmented reality (XR) device has been adjusted relative to a default IPD. The method further includes obtaining an image captured using a perspective camera of the VST XR device. The perspective camera is configured to capture an image of a three-dimensional (3D) scene. The method further includes transforming the image according to a change in the IPD relative to the default IPD to match a viewpoint of a corresponding one of the display lenses to generate a transformed image. The method further includes correcting distortion in the transformed image based on one or more lens distortion coefficients corresponding to the change in the IPD to generate a corrected image. Further, the method includes initiating presentation of the corrected image on a display panel of the VST XR device.

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.

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.

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.

The application relates to the field of optical imaging equipment, in particular to optical imaging equipment for multiple users and an image generation method. The optical imaging equipment comprises a server and multiple head-mounted devices, the head-mounted device comprises a display screen, two groups of optical lenses and a fixing mechanism, and the server is provided with an information input unit and an image generation system. With the development of VR technology, more and more fields apply VR technology to stereoscopic display of scenes. In public scenes such as meteorological museums, there are usually many users, and if an image rendering system is equipped for each user, the cost will be greatly increased. The multiple-user optical imaging equipment and the image generation method can realize the image generation requirement of a large number of users by using only one or several image generation systems, and the image can be adjusted for users with different interpupillary distances, so that the image generation quality is ensured and the cost is greatly reduced.

A manipulation assistance unit that functions as a gaze detection apparatus includes: an interpupillary distance detector that detects an interpupillary distance of a driver, who is a target person; and a gaze detector that detects a gaze position of the driver, wherein the gaze detector includes a gaze change determiner that determines that, if the gaze change determiner detects an eye movement involving two occurrences of change in the interpupillary distance within a predefined time period, the change in the interpupillary distance being equal to or greater than a predefined amount, a change has occurred in the gaze position of the driver, the change in the gaze position involving a change in viewing distance.

Systems and methods of detecting pupillary positions on a head of a subject are described. While a camera and a light source are positioned in front of the head of the subject, the camera is caused to capture image data representative of a frontal portion of the head of the subject. From the image data, a face of the subject is detected. Up to two eyes are identified from the detected face. A reflection of the light source on each identified eye is detected. A pupillary position of each identified eye is estimated based on a position of the detected light source reflection on the identified eye. One or more of interpupillary distance, left pupil distance, and right pupil distance may be determined from the estimated pupillary positions.

Embodiments of the present disclosure provide VR glasses including a bracket body, a first mounting hole and a second mounting hole, and a first lens module and a second lens module respectively mounted in the first mounting hole and the second mounting hole. The VR glasses include a driving module. The driving module includes a frame fixed to the bracket body, a driving unit fixed to one side of the frame, a gear member rotatably disposed in the frame and torque-transmissively connected to the driving unit, a first rack meshed with the gear member, and a second rack meshed with the gear member. The VR glasses can automatically and synchronously adjust the interpupillary distance, and has high adjustment accuracy, small volume occupation, high driving efficiency, high reliability, and good user experience.

An optical module for a head-mounted device is configured to present content to a user. The optical module includes a housing, a first optical module disposed in the housing, and a second optical module disposed in the housing. The optical module includes an interpupillary distance adjustment assembly including supports coupled to the housing and configured to guide motion of the first optical module and the second optical module with respect to the housing to allow adjustment of a distance between the first optical module and the second optical module. The optical axes of the first optical module and the second optical module extend generally in a front-to-back direction of the housing. Motion axes of the supports extend generally in a side-to-side direction of the housing.

This utility model discloses an adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry, comprising a frame and a replaceable lens body. The frame has a clamping part; the frame includes a frame beam, which is hollow inside and contains a first magnet, the length of which is less than the length of the frame beam. The bottom of the frame beam is flat, and the first magnet has an adjustment slider for adjusting the position of the first magnet inside the frame beam; the replaceable lens body includes a frame beam, which contains a second magnet, which is cylindrical and can rotate around an axis inside the frame beam; a lens is fixedly mounted on the bottom surface of the frame beam, and the top of the frame beam is a flat surface that matches the bottom of the frame beam. This solution allows people with moderate to high myopia, hyperopia, and astigmatism who need different prescriptions for near and far vision to conveniently clip an additional near lens onto their existing lenses while wearing their original eyeglasses, and the pupillary distance can be adjusted to suit different people.

A system performs an interpupillary distance estimation method, which includes capturing a plurality of depth images of a user's face where each depth image comprises a 2D image and a 2D map of data representative of the distances of each pixel from an observation point. For each of the captured depth images, the system processes the captured depth image by correcting the alignment between the 2D map of data and the 2D image, locates two first marker points corresponding to the pupils on the 2D image, and obtains the spatial coordinates in metric units of the first marker points from the 2D data map. The system further determines an initial estimate of the interpupillary distance by calculating the distance between the first marker points, determines a second estimate of the interpupillary distance, and calculates the final estimate of the interpupillary distance based on the first estimates or the second estimates.

Images of a user's face are captured at a plurality of time instants. Tracking parameters are determined, tracking parameters include: a pose of the user's head, positions of eyeballs, and at least one of: relative positions of irises with respect to boundaries of the eyeballs, relative positions of irises with respect to corners, shapes of the user's eyes. Uncalibrated gaze vectors of the user's eyes are estimated. A set of uncalibrated gaze vectors is generated. The uncalibrated gaze vectors of thset are stored along with corresponding time instants and tracking parameters. A first subset of uncalibrated gaze vectors whose direction matches with a predefined forward axis of vision, is selected. For the uncalibrated gaze vectors, corresponding tracking parameters are fetched. A maximum distance between the irises is determined. The maximum distance is considered as an interpupillary distance.

The invention belongs to the technical field of visual light equipment, and relates to a night visual function tester which comprises a shell and a controller, a dioptric lens and a display screen are arranged in the shell, two groups of holes are formed in the rear side of the shell, the display screen is arranged between the holes and the dioptric lens, and a compression motor is arranged on the inner side wall of the shell. The output end of the compression motor is connected with the refraction lens, eye movement tracking modules are arranged at the two ends of the front side of the shell correspondingly, and the compression motor, the display screen and the eye movement tracking modules are all electrically connected with the controller. Through forward and backward movement of the dioptric lens, the imaging distance can be adjusted from 0.1 m to infinity, and the night vision function testing device is suitable for night vision function testing of different myopic people; a Micro-oled display screen is adopted, so that the adjustment of the brightness of eyes from 0 to 3000nit is realized; the distance between the two dioptric lenses is adjusted through the interpupillary distance adjusting module, so that the centers of the dioptric lenses are accurately aligned with the pupil center of a testee, and the accuracy of a test result is improved.

The present application provides a convergence distance adjustment method and apparatus for a smart wearable device, a device, and a medium. The method comprises: calculating a first convergence distance on the basis of a first interpupillary distance of a target user to achieve customized convergence distance calculation; calculating a convergence distance adjustment amount on the basis of a current scene depth, a current parallax of the target user, and a second interpupillary distance; and performing a convergence distance adjustment on the smart wearable device, such that a display position of a target display object matches a viewing distance of the target user.

System and associated methods of use for rapid assessment of visual field integrity. In one embodiment, the device comprises a frame that rests near a patient's eyes with pinpoint lights or mechanical stimuli that act as visual stimuli mounted at locations within the frame and in the patient's peripheral visual field. A vantage point in front of the frame allows an operator to view the patient's eyes during assessment, enabling the operator to maximize the accuracy during both in person and telemedicine assessments. The lights or mechanical stimuli are positioned such that they are visible to patients with a wide range of interpupillary distances, enabling the use of a single-size device for all patients.

The invention relates to the technical field of optics, and discloses a display method, electronic equipment and a medium. In the display method provided by the invention, when the processor determines that the user interpupillary distance information is not in the standard interpupillary distance range, the DDIC is indicated to perform translation processing on the to-be-displayed image, and the corresponding display is controlled to display the corresponding image. For example, when the user interpupillary distance is larger than the standard interpupillary distance range, the DDIC is indicated to translate the to-be-displayed image corresponding to the left eye to the left, the display corresponding to the left eye is controlled to display the translated image corresponding to the left eye, and the to-be-displayed image corresponding to the right eye is translated to the right; and controlling the display corresponding to the right eye to display the translated to-be-displayed image corresponding to the right eye. Therefore, the watching requirements of users with different interpupillary distances can be met, the watching experience of the users is improved, in addition, the occupation of processor resources can be reduced by performing translation and other processing on the to-be-displayed image based on DDIC, and thus the power consumption of the processor is saved.

The invention relates to the technical field of VR equipment, in particular to intelligent VR equipment for environment publicity, which comprises a VR equipment body, a clamping type placement mechanism, an adjustable spacing mechanism, a clamping type clamping mechanism and a stable adjusting mechanism, and is characterized in that the clamping type placement mechanism is arranged on one side of the VR equipment body and is used for cooperating with the VR equipment body to fix glasses, the clamping type placement mechanism comprises a pair of placement bins, placement air bags are connected in the placement bins, a pair of placement pads is connected to the VR equipment body, and an adjustable spacing mechanism is connected between the pair of placement bins and is used for adapting to the eye spacing of a wearer. Through the arrangement of corresponding mechanisms on the VR equipment, the myopic crowd can use the VR equipment when wearing glasses, the myopic crowd can watch the content in the VR equipment more clearly, more convenience is achieved, the environment propaganda effect is improved, the system can be popularized to the myopic crowd, and the environment propaganda efficiency is improved.

The utility model discloses a slide rail structure for adjusting the interpupillary distance of a night vision detection instrument, which relates to the technical field of night vision detection instruments and comprises a supporting mechanism, a base, a connecting mechanism, a rotating block, a sliding block and a sliding block, one side of the rotating block is slidably connected with a sliding block, one side of the sliding block is slidably provided with an extrusion block, a connecting hole is formed in the extrusion block, a rotating piece is slidably arranged in the connecting hole, the lens cone mechanism is installed on one side of the sliding block and comprises a connecting block slidably connected to the sliding block, and one side of the connecting block is fixedly connected with a lens cone. According to the utility model, through the arrangement of the connecting mechanism, the position can be changed through the movement of the slide rail, when the lens cone reaches the position required by the interpupillary distance, the locking mechanism is used for locking the slide rail to keep positioning, the purpose of interpupillary distance adjustment is completed, and the structure improves the reliability, saves the adjustment time, meets the complex adjustment requirements, and is stable and reliable.

The invention provides a parameter adjustment method and device and 3D display equipment, and relates to the 3D display technology, and the method comprises the steps: obtaining a face image of a user through a camera; according to the face image, determining a first distance between a left eye pupil and a right eye pupil of the user in the face image and a first face geometric parameter of the user; determining an actual second face geometric parameter of the user, wherein the first face set parameter and the second face geometric parameter are used for indicating the same reference feature of the face of the user; determining a second distance between the user and the camera according to the first face geometric parameter, the second face geometric parameter and the focal length of the camera; determining the interpupillary distance of the user according to the first distance, the second distance and the focal length of the camera; and according to the interpupillary distance, adjusting an imaging parameter of the 3D display equipment so as to enable the imaging parameter to be matched with the interpupillary distance. Based on the scheme, the pupil distance of the current user can be accurately obtained and the imaging parameters can be adaptively adjusted, so that the viewing experience of the user is improved.

The embodiment of the invention provides a display method of a user interface of virtual reality equipment and the virtual reality equipment, and relates to the technical field of VR. The method includes: acquiring diopter and interpupillary distance of a user; according to the diopter and the interpupillary distance, determining a display distance and an interface size of a first user interface of the virtual reality device, the display distance being used for representing a distance between the first user interface and a user virtual viewpoint in a virtual environment constructed by the virtual reality device, the interface size is used for representing the spatial scale of the first user interface in the virtual environment; and displaying the first user interface in the virtual environment according to the display distance and the interface size. The embodiment of the invention is used for improving the visual comfort of the user and the universality of the VR equipment.

Techniques are provided for measuring interpupillary distance (IPD) using a mobile device application that integrates with augmented reality (AR) eyewear. The mobile application guides users through a measurement process using the device's camera and sensors to capture facial data. Computer vision algorithms analyze the data to determine IPD measurements while considering facial geometry and depth perception. The system provides real-time positioning feedback and allows manual entry of known IPD values. Measurements are stored in user profiles rather than on AR devices, enabling cross-device synchronization. The integration of IPD measurement into the initial device setup process, combined with flexible measurement options and profile-based storage, provides an accessible solution that maintains accuracy while eliminating the need for specialized measurement hardware.

The invention provides an ophthalmology inspection tester capable of performing multiple ophthalmology function examinations. An ophthalmic tester (1) is provided with a hand-held main body (2) provided with a plurality of test windows (22, 38) capable of performing ophthalmic function tests, and each of the plurality of test windows (22, 38) is provided with a pair of window parts (20, 21, 30, 37) disposed so as to have an interpupillary distance.

A Fresnel lens film for vision correction, and an optical waveguide lens. The Fresnel lens film comprises an adhesive layer (1), a film substrate layer (2) and a Fresnel lens layer (3) which are sequentially connected in a thickness direction, wherein the film substrate layer (2) is sequentially divided into a near interpupillary distance section, an intermediate interpupillary distance section and a far interpupillary distance section in a lengthwise direction, and the Fresnel lens layer (3) is disposed on the intermediate interpupillary distance section. The optical waveguide lens comprises a waveguide plate (4), a protective layer (5) and the Fresnel lens film which are sequentially connected in a light emission direction, and the adhesive layer (1) is disposed on the protective layer (5). The Fresnel lens film is configured to be adhered to the side of AR glasses close to human eyes, vision correction can be carried out on the basis of an imaging position and a pupil distance; and the Fresnel lens film has the advantages of a light and thin material, ease of removal and mounting, low cost and good mechanical properties.

The utility model discloses a photoelectric integrated colposcope, an intelligent analysis device and a colposcope system. The colposcope comprises a support, a lens frame, a colposcope body and a binocular. The bracket comprises a base and at least one stage of lifting rotating structure; the rotating arm can rotate and lift relative to the rotating shaft; the lens frame is rotatably connected with the support, an adjusting handle is arranged on the lens frame, and the lens frame swings relative to the support by operating the adjusting handle; an image acquisition unit in the mirror body is used for acquiring a video image of a to-be-observed part and transmitting the video image to the host for processing; the binocular lens comprises an interpupillary distance adjusting mechanism, a binocular lens, an interpupillary distance adjusting knob and a visual angle adjusting mechanism; a first rotating block and a second rotating block in the visual angle adjusting mechanism can rotate relative to the switching block so as to adjust the observation angle of the binocular. The visual angle can be conveniently adjusted, the operation is simple and convenient, and different focus positions can be conveniently observed. The host can intelligently analyze images collected by the colposcope, and the speed, efficiency and accuracy of diagnostic analysis are improved.

An interpupillary distance adjusting device applied to VR glasses, the VR glasses include bracket body, first and second lens modules, the device includes driving module fixed to the bracket body and located between the first and second lens modules. The driving module is configured to drive the first and second lens modules to move towards or away from each other to realize interpupillary distance adjustment. The driving module includes frame, driving unit, first and second gear members, first and second racks parallel to each other. An end of the first rack is fixed to the first lens module, an end of the second rack is fixed to the second lens module. Compared with the related art, the interpupillary distance adjusting device can automatically and synchronously adjust the interpupillary distance, with high adjustment accuracy, small volume occupation, high driving efficiency, high stability, and good user experience.

This invention relates to a diopter and interpupillary distance (IPD) adjustment mechanism. The mechanism includes a main frame with left and right eyepieces mounted on it, and left and right displays corresponding to the eyepieces. A diopter adjustment component is located on the side of each eyepiece for adjusting the distance between the display and the eyepiece on one side, and an IPD adjustment component is located on the side for adjusting the left or right movement of the eyepiece on one side. The diopter adjustment component is driven to the display; the IPD adjustment component is driven to the eyepiece; both the diopter adjustment component and the IPD adjustment component are rotatable. This adjustment mechanism can precisely control the diopter and IPD of a single eye, allowing both eyes to be adjusted to their optimal state. It is convenient to operate, allowing diopter and IPD adjustments to be completed from the same position, greatly improving the user experience of smart glasses.

This invention proposes an eye therapy device combining heating and electrical stimulation, belonging to the technical field of electrical stimulation therapy equipment. It includes a main body and a headband. The two sides of the main body are fixedly connected to the two ends of the headband. The main body surrounds the eye area and has a cavity in front of the eyes. An image acquisition unit is located in the cavity on the side furthest from the user's eyes, used to acquire facial images of the user wearing the therapy device, including the user's interpupillary distance, iris diameter, and facial skin dryness. A main control unit identifies the user based on the interpupillary distance and iris diameter in the facial image. An output unit is located in the cavity between the user's eyes and the image acquisition unit, used to receive the output signal from the main control unit and apply heating and microcurrent stimulation to the user's eyes. A hydration unit hydrates the user's eyes according to their skin dryness. A display unit displays the output. A power supply unit provides rechargeable power.