421 results about "Interpupillary distance" patented technology

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.

The invention discloses an eye movement tracking test device and method for VR / AR equipment. The eye movement tracking test device comprises an eyeball simulation module, a pitching module, a rotating module, an interpupillary distance control module, a driving module, a driving control module and a main control module. The main control module sets a test task type and a test track, the rotating module and the pitching module drive the simulation eyeball module to realize rotating motion and pitching motion, and the attitude sensor and the driving control module detect the pitching angle and the rotating angle of the simulation eyeball module and control the corresponding modules to perform error compensation. And the main control module compares the current staring point with a staring point given by the VR / AR equipment eye movement tracking system to realize precision analysis of the VR / AR equipment eye movement tracking system. The VR / AR equipment eye movement tracking test device effectively simulates human eye movement, solves the problem that an existing test device lacks actual movement image information, visually and accurately reflects various real movement of human eyes, and improves the stability of VR / AR equipment eye movement tracking test.

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.

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.

The invention discloses an eye protection method and system of an intelligent terminal, relates to the technical field of eye protection terminals, and aims to solve the problem of child eye use safety monitoring, multi-source data such as child face images, eye distances, equipment postures and environmental stability are collected, and time sequence data in a unified format is formed through noise filtering and synchronous processing; the posture angle and equipment stability information is extracted through the visual recognition and motion recognition sub-module, and the unhealthy eye using state is comprehensively judged; dynamically updating an eye using distance and a posture threshold value according to the height and the vision condition of the child and parent feedback; real-time monitoring is carried out, friendly reminding is triggered, and feedback data are recorded for closed-loop optimization; through cloud management, a parent-side App can check data in real time, a protection mode can be remotely started, and personalized eye protection suggestions are provided based on big data analysis. Through real-time remote intervention, accurate monitoring and personalized management of eye using behaviors of children are remarkably improved, and the risk of myopia is effectively reduced.

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.

The utility model discloses an eyepiece disc assembly which comprises an eyepiece disc support, an eyepiece disc and a motor, and the middle part of the eyepiece disc is rotatably connected with the eyepiece disc support; the motor is arranged on the eyepiece disc bracket; the magnet is arranged on the eyepiece disc and rotates along with the eyepiece disc; the Hall sensor is arranged on the eyepiece disc support, and when the eyepiece disc rotates to a preset position, the Hall sensor is aligned with the magnet; the main control board is in communication connection with the motor and the Hall sensor, and when the Hall sensor is aligned with the magnet, the main control board controls the motor to stop. According to the utility model, the Hall sensor is used for monitoring the single-point position of the eyepiece disc, so that step loss accumulation of the motor can be effectively avoided, the cost is low, and the occupied space is small; the single-side eyepiece disc only occupies one pin of the main control board; according to the overturning bat disclosed by the utility model, the lenses can be automatically switched; the motor rotates the eyepiece disc, and the lens switching speed is uniform; and the interpupillary distance can be manually adjusted according to user requirements.

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.

A head-mounted device may have optical modules that present images to a user's eyes. Each optical module may have a lens barrel with a display and a lens that presents an image from the display to a corresponding eye box. To accommodate users with different interpupillary distances, the optical modules may be slidably coupled to guide members such as guide rods. Actuators may slide the optical modules towards or away from each other along the guide rods. The guide rods may be formed from fiber-composite tubes with end caps that are fastened to a frame in the head-mounted device. The tubes may be partly or completely filled with cores to add strength. Low-friction coatings such as metal coatings may be formed on the fiber-composite tubes and the corresponding inner surfaces of the optical module structures that slidably engage the fiber-composite tubes.

The invention discloses an image display method and device, electronic equipment and a storage medium, the image display method can be applied to head-up display equipment, and the head-up display equipment comprises a display screen and a light splitting element; the method comprises the following steps: acquiring the interpupillary distance of a target object; determining a target image parallax between the left-eye virtual image and the right-eye virtual image based on the pupil distance of the target object, a preset virtual image distance and a preset object distance; the preset object distance is an ideal distance between a three-dimensional object observed by the target object through the left eye virtual image and the right eye virtual image and the target object; adjusting an initial pixel distribution mode of the display screen based on the difference between the target image parallax and the initial image parallax to obtain a target pixel distribution mode; the initial pixel distribution mode is used for enabling the distance between the formed left-eye virtual image and the formed right-eye virtual image to be equal to the initial image parallax; and displaying the to-be-displayed image based on the target pixel distribution mode. According to the invention, the comfort of users with different interpupillary distances for watching the three-dimensional effect image is ensured.

To accommodate variations in the interpupillary distances associated with different users, a head-mounted device may have left-eye and right-eye optical modules that move with respect to each other. Each optical module may have a display that creates an image and a corresponding lens that provides the image to an associated eye box for viewing by a user. The optical modules each include a lens barrel to which the display and lens of that optical module are mounted and a head-mounted optical module illumination system. The illumination system may have light-emitting devices such as light-emitting diodes that extend along some or all of a peripheral edge of the display. The light-emitting diodes may be mounted on a flexible printed circuit with a tail that extends a lens barrel opening. A stiffener for the flexible printed circuit may have openings that receive the light-emitting diodes.

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.

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.

The utility model discloses a visual training instrument capable of adjusting interpupillary distance, which comprises a base and a support plate, the support plate is provided with a visual training assembly, the visual training assembly comprises an eye tube and a rubber sleeve, the outer side of the eye tube is provided with a movable assembly, the movable assembly comprises a ball sleeve and a lantern ring, the inner side of the support plate is provided with a sliding assembly, and the sliding assembly is connected with the ball sleeve and the lantern ring. Each sliding assembly comprises a sliding groove and a sliding plate, a distance adjusting assembly is installed on each eye tube and comprises a screw sleeve and a screw rod, the visual training instrument capable of adjusting the interpupillary distance can push the screw rod inwards or outwards on the inner side of the screw sleeve to adjust the distance between the two eye tubes, adjustment operation can be conducted according to different interpupillary distances of different persons, and the visual training instrument capable of adjusting the interpupillary distance is convenient to use. The visual training device is simple in structure and convenient to use so as to meet the visual training requirements of different persons, the eye cylinder can rotate up and down and left and right on the inner side of the lantern ring through the ball sleeve, then the persons can conduct visual training work in different directions, the visual training effect on the persons is improved, and the visual training device is suitable for being used for visual training of the persons.

A head-mounted device may include optical assemblies for presenting images to a user. Optical assembly positioning systems may be used to adjust the spacing between the optical assemblies to accommodate different interpupillary distances. The optical assembly positioning systems may have motors, shafts rotated by the motors, nuts that receive the shafts and that are moved as the shafts are rotated, and clutches that couple the nuts to the optical assemblies. The clutches may be spring-loaded clutches, magnetic clutches, electrically adjustable clutches, clutches that exhibit fixed clutch holding forces as a function of optical assembly position, and clutches that exhibit varying clutch holding forces as a function of optical assembly position. Electrically adjustable brakes may be used to help secure the optical assemblies in place.

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.

The utility model provides near-to-eye display equipment and wearable equipment, and relates to the technical field of electronic equipment. The near-to-eye display equipment comprises a shell, a first sliding connection part, a near-to-eye display module and a second sliding connection part, the shell is provided with a cavity and a light inlet window communicated with the cavity, and the light inlet window faces the eye side of the shell; the first sliding connection part is located at the position, corresponding to the light inlet window, of the shell; the near-to-eye display module is arranged in the cavity, at least part of the near-to-eye display module is exposed relative to the light inlet window, and the near-to-eye display module is configured to allow light to be emitted from the light inlet window; the second sliding connection part is arranged on the periphery of the near-to-eye display module; the first sliding connection part and the second sliding connection part are configured to allow the near-to-eye display module to move in the cavity. The near-to-eye display module can be adjusted at different positions of the cavity according to the interpupillary distances of different users to adapt to the interpupillary distances of the different users, and different shells do not need to be manufactured according to the interpupillary distances of the different users.

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.

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.

The invention provides an interpupillary distance detection method, a storage medium and electronic equipment, after a left view image and a right view image are acquired, a first left eye pupil position and a first right eye pupil position in the left view image are analyzed, and a second left eye pupil position and a second right eye pupil position in the right view image are analyzed. And determining the parallax of the left-eye camera and the right-eye camera. And determining the shooting depths of the left eye pupil and the right eye pupil. And finally converting the positions of the two pupils in the plane image into an expression mode under a world coordinate system through coordinate system conversion. In a world coordinate system, the accurate pupil distance can be obtained by directly using the coordinates of the two pupil positions to carry out distance calculation. According to the scheme, the position representation mode of the left eye pupil and the position representation mode of the right eye pupil are finally achieved in the coordinate representation mode under the same world coordinate system, the mode that the pupil distance is calculated by restoring the real positions of the two pupils is adopted, the obtained pupil distance detection result is more consistent with the actual situation, and the obtained lens matching result is more consistent with the requirement.

The utility model belongs to the technical field of intelligent glasses, and relates to intelligent glasses, which comprise a glasses frame, a display imaging device and an eye movement tracking device, the glasses frame comprises eye sockets and a connecting part, the connecting part is arranged on one side of the eye sockets in the interpupillary distance direction, and an accommodating cavity is formed; the display imaging device comprises a lens and an imaging light group which is arranged in the accommodating cavity and emits imaging light with image information. The lens comprises an optical waveguide sheet, a first coupling-in coupling-out grating group and a second coupling-in coupling-out grating group, wherein the first coupling-in coupling-out grating group and the second coupling-in coupling-out grating group are arranged on the optical waveguide sheet. The eye movement tracking device comprises a luminous source and a pupil imaging device which are arranged in the accommodating cavity; and the second coupling-in and coupling-out grating group is used for coupling the infrared light or the infrared light reflected by the eye into and out of the optical waveguide sheet, so that the eye movement tracking device and the display imaging device at least share the optical waveguide sheet for transmission, and the infrared light with eye information is finally transmitted to the pupil imaging device. The intelligent glasses not only have an eye movement tracking function, but also realize lightweight design.

According to the image combination distance adjusting method and device of the intelligent wearable device, the equipment and the medium, the first image combination distance is calculated through the first interpupillary distance of the target user, customized image combination distance calculation is achieved for the target user, and the applicability of the intelligent wearable device is improved. According to the current scene depth, the current parallax of the target user and the second pupil distance, the image combination distance adjustment amount is calculated, so that the image combination distance can be dynamically changed according to the actual use environment, and the adaptability and flexibility of equipment display are enhanced; by adjusting the image combination distance of the intelligent wearable device, the display position of the target display object is matched with the sight distance of the target user, so that the positioning accuracy of the target display object is improved, the visual fatigue of the user is reduced, and the visual experience comfort of the user is improved.

Provided is an augmented reality device including a variable focus lens, an eye tracking sensor configured to emit light to eyes of a user, receive the light reflected by the eyes of the user, and detect a plurality of feature points based on the light reflected by the eyes of the user, and at least one processor configured to obtain information with respect to eye relief, which is a distance between the eyes of the user and the variable focus lens, based on position information of the plurality of feature points detected by the eye tracking sensor, obtain information with respect to a gaze point at which gaze directions of the eyes of the user converge, and an interpupillary distance of the eyes of the user, based on the plurality of feature points, and determine a position of a focal region of the variable focus lens based on the information with respect to the eye relief, the gaze point, and the interpupillary distance.

An optical location of camera(s) relative to a display area of a multiscopic display is detected or retrieved. Another optical location is selected, the another optical location being offset from the optical location of the camera(s) by a given angular interpupillary distance. An estimated pitch of a multiscopic optical element is selected. A first image and a second image are obtained, wherein the first image has first colour(s), and the second image has second colour(s) being different from the first colour(s). A multiscopic image is generated, based on the estimated pitch. The multiscopic image is displayed, whilst capturing image(s) of the display area. A correct pitch of the multiscopic optical element is determined, based on an interference pattern represented in the image(s).

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.

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.

The invention discloses an intelligent library experience interaction system and method based on a VR technology, relates to the field of intelligent libraries, and solves the problem that the current intelligent library interaction experience is easily influenced by display focusing, resolution, sight distance, equipment theme wearing experience and other factors. Comprising a wearing detection module, a display adjustment module, a behavior recording module and a behavior analysis module, the wearing detection module is used for detecting the wearing effect of the wearable device, and a data acquisition module is used for acquiring eye positioning data of a user. The display adjusting module is used for analyzing and generating a focusing adjusting signal or an interpupillary distance adjusting signal according to the eye positioning data, the execution module is used for adjusting the position of a display, the behavior recording module is used for recording reading interaction data of a user, and the behavior analysis module is used for analyzing the experience interaction condition of the user. Customized experience of the intelligent library is realized based on the VR technology.

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.