Eye detection device

Abstract

The utility model provides an eye detection device, and belongs to the field of wearable medical supplies. The device comprises a pair of glasses, and an acquisition module and a light source module which are arranged on the glasses, the acquisition module is used for acquiring images and optical signals; the light source module is used for illumination. According to the utility model, illumination required by an eye test can be provided, and the eyes of a subject can be detected; according to the utility model, through the VR, AR or XR technology, abundant and diversified images can be provided for testees for eye detection and training.

Description

Technical Field

[0001] The utility model belongs to the field of wearable household medical devices, relates to a "digital eye", and particularly relates to an eye detection device. Background Art

[0002] Eye health is an important part of human health and is closely related to visual function, cognitive ability, emotional state, etc. However, due to various reasons, such as genetics, environment, lifestyle, diseases, etc., many people are faced with different degrees of eye problems, such as myopia, astigmatism, strabismus, amblyopia, dry eye, glaucoma, cataract, etc. These problems not only affect people's visual quality and quality of life, but also increase the social and economic burden.

[0003] The eye is a biomechanical organ and the only organ in the human body that can directly observe nerve and blood vessel tissues. There are many biological indicators of the eye, such as eye morphological structure indicators (such as changes in the retina, pupil morphology, and corneal conjunctival blood vessels), functional indicators (such as intraocular pressure, corneal mechanical indicators, eye movement fixation, attention, etc.). These indicators are closely related to the body's system parameters (such as blood pressure, intracranial pressure, heart rate, blood biochemical indicators such as blood lipids), chronic disease indicators (such as cardiovascular and cerebrovascular diseases, kidney diseases, mental diseases), cognitive status, etc. Therefore, using these biological indicators can provide a digital model of "nerve-blood vessel-mechanics" indicators, which can be used for the health management and disease monitoring of eye diseases and chronic diseases.

[0004] In order to detect and evaluate eye health status, the currently commonly used methods are as follows:

[0005] 1. Conduct various ophthalmic examinations through professional instruments and equipment, such as visual acuity examination, refractive power examination, pupil examination, intraocular pressure examination, corneal curvature examination, fundus examination, etc. These examinations usually need to be carried out in a hospital or a professional institution, operated by professional personnel, and require a certain amount of time and cost. In addition, these examinations also have some limitations, such as being unable to monitor eye changes in real time and being unable to reflect the performance of the eyes under different environments and tasks.

[0006] 3. Application software based on mobile devices such as smartphones or tablets can use the functions of the mobile device's camera, screen, etc. to perform some basic eye detection and training. However, due to factors such as the hardware performance of the mobile device, software quality, and the operation of the subject, it cannot guarantee the accuracy and effectiveness of the detection and training, and cannot monitor the eyes comprehensively.

[0007] With the development of ophthalmic technology, the demand for portable and highly accurate eye detection devices is increasing day by day. Existing eye detection tools often have a single function and are bulky, making it difficult to meet the needs of daily use and portability. Therefore, there is an urgent need for a portable "digital eye" device that can perform eye detection. Summary of the Utility Model

[0008] The purpose of the present utility model is to solve the problems existing in the above-mentioned prior art, and provide an eye detection device that can provide the light required for eye testing, can detect the eyes of the subject, and can also train the eyes of the subject.

[0009] The present utility model is achieved through the following technical solutions:

[0010] The present utility model provides an eye detection device, which includes: glasses, and an acquisition module and a light source module arranged on the glasses;

[0011] The acquisition module is used for acquiring images and optical signals;

[0012] The light source module is used for illumination.

[0013] Preferably, the glasses include a frame, and the frame includes: a spectacle frame and temple arms respectively arranged on both sides of the spectacle frame;

[0014] Two lenses are arranged on the spectacle frame;

[0015] The glasses adopt VR glasses, AR glasses or XR glasses.

[0016] Preferably, the acquisition module includes two cameras with built-in optical sensors, and the two cameras are respectively embedded in the upper parts of the two lenses.

[0017] Preferably, the light source module includes: a flexible rod and a light-emitting component;

[0018] One end of the flexible rod is connected to the front part of the temple arm, and the other end of the flexible rod is a free end;

[0019] The light-emitting component is connected to the free end of the flexible rod;

[0020] The light-emitting component includes: a housing, and a light source, a filter mechanism, a slit grating and a reflecting prism arranged in the housing.

[0021] Preferably, the housing includes: a body, and a front end cover and a rear end cover arranged at both ends of the body;

[0022] A cable hole is opened in the middle of the body, the free end of the flexible rod is connected to the middle of the body, and the inner cavity of the flexible rod is communicated with the cable hole on the body;

[0023] A light exit hole is opened on the front end cover, and a reflecting prism is installed in the light exit hole;

[0024] The light source is arranged on the inner side of the rear end cover, and the cable connected to the light source passes through the cable hole on the body and then enters the inner cavity of the flexible rod;

[0025] In the inner cavity of the main body, a slit grating and a filter mechanism are arranged in sequence from the front end to the rear end.

[0026] Preferably, a first semi-annular hole and a second semi-annular hole coaxial with the body are opened in the middle of the wall of the body; the two semi-annular holes are located on the same side semi-cylindrical surface of the body;

[0027] A first positioning ring and a second positioning ring coaxial with the body are arranged in the inner cavity of the body; the first positioning ring is aligned with the first semi-annular hole; and the second positioning ring is aligned with the second semi-annular hole;

[0028] A first blind hole perpendicular to the axis of the first positioning ring is formed on the first positioning ring, a first spring and a first locking ball are installed in the first blind hole, one end of the first spring is fixedly connected to the bottom of the first blind hole, and the other end is connected to the lower end of the first locking ball;

[0029] A second blind hole perpendicular to the axis of the second positioning ring is formed, in which a second spring and a second locking ball are installed; one end of the second spring is fixedly connected to the bottom of the second blind hole, and the other end is connected to the lower end of the second locking ball.

[0030] Preferably, the slit grating comprises a grating wheel; the grating wheel comprises: a circular grating disk and a first annular flange located at the edge of the grating disk and vertically connected to the grating disk;

[0031] A plurality of cracks of different lengths and widths are opened on the circular surface of the upper half of the grating disk, and the center lines of different cracks are located at different radii of the grating disk;

[0032] The first positioning ring can be inserted into the first annular flange, and the first annular flange can rotate relative to the first positioning ring;

[0033] A plurality of first grooves are formed on the inner surface of the first annular flange, and the upper half of the first locking ball can enter into the first grooves;

[0034] The first grooves correspond to the cracks one by one.

[0035] Preferably, a first slot is provided on the outer surface of the first annular flange; one end of the first paddle can be inserted into the first slot.

[0036] The filter mechanism comprises: a filter wheel; the filter wheel comprises: a circular filter disc and a second annular flange located at the edge of the filter disc and vertically connected to the filter disc;

[0037] A plurality of holes are opened on the upper circular surface of the filter disc, the centers of the plurality of holes are distributed on a circumference of a circle co-centered with the filter disc, and a filter of a different color is installed in each hole;

[0038] The second positioning ring can be inserted into the second annular flange, and the second annular flange can rotate relative to the second positioning ring;

[0039] A plurality of second grooves are formed on the inner surface of the second annular flange, and the upper half of the second locking ball can enter into the second grooves;

[0040] The second grooves correspond to the filters one by one.

[0041] Preferably, a second slot is provided on the outer surface of the second annular flange, and one end of the second paddle can be inserted into the second slot.

[0042] Compared with the prior art, the beneficial effects of the utility model are:

[0043] (1) The utility model can provide the lighting required for eye testing and can detect the eyes of the subject;

[0044] (2) The present invention can provide subjects with rich and diverse images for eye detection and training through VR, AR or XR technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the eye detection device of the utility model;

[0046] Figure 2 It is a schematic diagram of the structure of the light-emitting component in the eye detection device of the utility model;

[0047] Figure 3-1 It is a schematic diagram of the main structure of the main body 401 in the light-emitting component 4 in the eye detection device of the present invention;

[0048] Figure 3-2 It is a schematic diagram of the top view of the main body 401 in the light emitting component 4 in the eye detection device of the present utility model;

[0049] Figure 4 It is a perspective structural diagram of the middle part of the main body 401 in the light emitting component 4 in the eye detection device of the present invention;

[0050] Figure 5 It is a side view structural diagram of the front end cover 402 in the light emitting component 4 in the eye detection device of the present utility model;

[0051] Figure 6 It is a schematic structural diagram of the grating wheel in the light-emitting component 4 of the eye detection device of the present utility model;

[0052] Figure 7 It is a schematic structural diagram of the filter wheel in the light-emitting component 4 of the eye detection device of the present utility model. Detailed implementation manners

[0053] The present utility model will be further described in detail below with reference to the accompanying drawings:

[0054] The eye detection device provided by the present utility model can detect the eye health status based on immersive media technologies (such as virtual reality (VR), augmented reality (AR), or extended reality (XR) technologies), and the detection of eye biological indicators (including detecting the pupillary light reflex, iris, fundus retinal photography of the subject, and even recording the retinal neuro-vascular coupling response under light stimulation). At the same time, the present utility model can provide eye fixation visual acuity training and strabismus and amblyopia training to help the subject improve visual function and eye health level.

[0055] Specifically, as Figure 1 shown, the eye detection device provided by the present utility model includes: glasses, and an acquisition module 2 and a light source module arranged on the glasses. The acquisition module 2 is used to acquire images and optical signals; the light source module is used for illumination.

[0056] The glasses can be existing VR glasses, AR glasses or XR glasses, which can be selected according to actual needs. VR glasses, AR glasses or XR glasses can simulate various visual environments to evaluate and train the user's visual response.

[0057] More specifically, the glasses include a frame, and the frame includes: a spectacle frame 101 and temple arms 103 respectively arranged on both sides of the spectacle frame 101. Two lenses 102 (VR, AR or XR lenses) are arranged on the spectacle frame 101. After the user wears the frame, the two lenses 102 are respectively located in front of the left and right eyes of the subject. The lenses 102 are used to display virtual reality (VR), augmented reality (AR) or extended reality (XR) images and information. The front end of each temple arm 103 is connected to the side of the spectacle frame 101, and the rear end of each temple arm 103 is a free end.

[0058] Preferably, the frame is made of a high molecular polymer and high-strength carbon fiber plastic to ensure stable structure and light weight. The glasses can provide an immersive experience and, in addition to the basic virtual reality experience, also serve as the support structure of the entire device.

[0059] The acquisition module 2 includes two cameras integrated with optical sensors. The two cameras are respectively embedded in the upper parts of the two lenses 102. For example, holes can be respectively drilled in the upper parts of the two lenses 102, the cameras are installed in the holes, and the cables connected to the cameras are passed out of the lenses 102 and then connected to the controller in the temple 103. In this way, images of the two eyes and various optical signals can be collected by the cameras.

[0060] Preferably, the cameras can be existing high-definition cameras, infrared cameras, near-infrared cameras, etc. with built-in optical sensors (such as CMOS (Complementary Metal Oxide Semiconductor) sensors or CCD (Charge Coupled Device) sensors). The cameras first capture images from the target object, which can be generated by visible light or near-infrared light sources, and output the images to other devices (such as monitors, computers, printers, external devices of mobile phones, etc.). The cameras can photograph and record the pupils, pupillary light reflex, iris texture, fundus retinal blood vessels, etc. of the subject. The pupils are photographed by a high-definition camera or an infrared camera, and existing image processing algorithms are used to locate and segment the pupil area, and the pupil diameter is calculated. The pupil diameter refers to the diameter size of the human eye pupil, which can reflect factors such as human emotions, attention, and light intensity. The pupillary light reflex refers to the reaction of the pupil to external light, which can reflect the functions of the human nervous system and eye diseases, etc. The pupillary light reflex can be photographed and observed by a near-infrared camera, irradiating the human eye with infrared light, and observing the degree of contraction and dilation of the pupil. The iris texture refers to the fine lines on the human eye iris, which has high individual differences and stability and can be used for functions such as human eye recognition. The iris texture can be photographed and extracted by a high-definition camera or a near-infrared camera, and existing image processing algorithms are used to locate and segment the iris area and extract its feature vectors. The fundus retinal blood vessels refer to the blood vessel network on the human eye retina, which can reflect the human blood circulation status and eye diseases, etc. The fundus retinal blood vessels can be photographed and recorded by a dedicated fundus camera, usually irradiating the human eye with white light or green light and capturing the reflected images.

[0061] The optical sensor first receives optical signals from the target object or the environment, and these optical signals can be visible light (such as red-free light) with different wavelengths, infrared rays, etc. The optical sensor converts the optical signals into electrical signals and finally outputs the electrical signals to other devices (such as the display on the lens 102, external devices, etc.), and these devices can process and analyze according to the characteristics of the electrical signals such as intensity, frequency, and phase. The camera can capture the minute details of the eye and realize photographing or short-time video recording of the cornea, anterior chamber, pupil, and retina of the eye.

[0062] The light source module includes a flexible rod 3 and a light-emitting component 4. The flexible rod 3 is a tubular structure that can be bent arbitrarily and has a certain flexibility. One end of the flexible rod 3 is connected to the front part of the temple 103 (the end of the temple 103 close to the frame is the front end, the end far from the frame is the rear end, and the part of the temple 103 close to the front end is the front part). The other end of the flexible rod 3 is a free end, and the light-emitting component 4 is connected to the free end of the flexible rod 3. Preferably, a light source module is connected to the front part of each temple 103, so that the required illumination can be provided for both glasses at the same time. The flexible rod 3 is made of an existing high-strength carbon fiber composite material, ensuring lightness and high strength, guaranteeing flexibility, and being able to be bent and rotated, facilitating adjustment to various positions.

[0063] As Figure 2 As shown, the light-emitting component 4 includes: a housing, and a light source 404, a light filtering mechanism 406, a slit grating 405, and a reflecting prism provided in the housing. The light emitted from the light source 404 passes through the light filtering mechanism 406, the slit grating 405, and the reflecting prism in sequence and then is emitted, providing the required illumination for eye examination, that is, using the emitted light to irradiate the position that needs illumination, ensuring that the camera can capture clear images.

[0064] The housing includes: a main body 401, and a front end cover 402 and a rear end cover 403 provided at both ends of the main body 401; the main body 401 is a hollow cylindrical structure with both ends open, and the two end covers can be connected to the front and rear ends of the main body 401 through existing connection structures such as threads or snaps to seal the openings at both ends of the main body 401. A cable hole is opened in the middle in the length direction of the main body 401. The free end of the flexible rod 3 is connected to the middle of the main body 401, and the inner cavity of the flexible rod 3 is communicated with the cable hole on the main body 401. That is to say, when the flexible rod 3 is straightened, the central axis of the main body 401 is perpendicular to the length direction of the flexible rod 3. Opening a cable hole in the middle of the main body 401 is to facilitate the cable in the light-emitting component 4 (the cable for supplying power to the light source 404) to enter the inner cavity of the flexible rod 3 through the cable hole and pass through the inner cavity of the flexible rod 3 to be connected to the controller in the temple 103.

[0065] As Figure 5As shown, a light-emitting hole 411 is formed in the front end cover 402, and a reflecting prism is installed in the light-emitting hole 411. The light source 404 is arranged inside the rear end cover 403. The cable connected to the light source 404 passes through the cable hole on the main body 401 and then enters the inner cavity of the flexible rod 3. In the inner cavity of the main body 401, a slit grating 405 and a light filtering mechanism 406 are sequentially arranged from the front end to the rear end. The light emitted by the light source 404 passes through the light filtering mechanism 406 and the slit grating 405 in sequence, and then passes through the reflecting prism in the light-emitting hole 411 and exits. Preferably, the light source 404 is arranged at the upper part inside the rear end cover 403, and the light-emitting hole 411 is arranged at the upper part of the front end cover 402. In this way, the light emitted by the multi-spectral light source 404 is located above the central axis of the main body 401.

[0066] The light source 404 uses an existing multi-spectral LED, which can emit various lights, such as cobalt blue light, achromatic light, near-infrared light, etc., to provide light of a specific wavelength band for the eye to meet different shooting requirements. The wavelength of the near-infrared light is between 0.7 and 1.4 micrometers, which is close to the visible light range but does not cause a visual response in the human eye. The near-infrared light is mainly used to detect the internal structures and functions of the anterior segment of the eye and the fundus retina, such as blood vessels, nerve fiber layers, etc. The achromatic light includes two types: green light and blue light. The wavelength range of the green light is generally between 500 and 570 nm, and the wavelength range of the blue light is generally between 450 and 495 nm. The green light is mainly used to observe blood vessels and bleeding lesions, and the blue light is mainly used to observe the changes of retinal nerve fibers and macula. It may further include a red LED, which is located beside the multi-spectral LED and emits red light with a wavelength of 630 - 670 nm for myopia treatment.

[0067] Further, along the central axis direction of the main body 401, a first semi-circular hole 407 and a second semi-circular hole 408 coaxial with the main body 401 are formed in the middle of the wall of the main body 401. The central angles corresponding to the two semi-circular holes are both 180 degrees, and the inner cavity of the main body 401 is communicated with the outside. The two semi-circular holes are located on the same semi-cylindrical surface of the main body 401, as Figure 2 、 Figure 3-1 、 Figure 3-2 shown (for clear drawing, Figure 3-1 、 Figure 3-2 do not show the first positioning ring and the second positioning ring).

[0068] Further, as Figure 4 shown (for clear drawing, Figure 4Only the part of the body between the two positioning rings is retained (the other parts of the body are not shown). In the middle of the inner cavity of the body 401, a first positioning ring 4011 and a second positioning ring 4012 coaxial with the body 401 are provided. The two positioning rings are arranged oppositely. For example, two annular steps coaxial with the body 401 can be provided in the middle of the inner cavity of the body 401, and the first positioning ring 4011 and the second positioning ring 4012 are respectively connected through the two annular steps. The right end of the first positioning ring 4011 is connected to the first annular step, and the left end of the second positioning ring 4012 is connected to the second annular step. The outer diameters of the first positioning ring 4011 and the second positioning ring 4012 are both smaller than the inner diameter of the body 401. The first positioning ring 4011 is aligned with the first semi-circular hole 407, and their widths are the same; the second positioning ring 4012 is aligned with the second semi-circular hole 408, and their widths are the same. In this way, half of the first positioning ring 4011 can be seen through the first semi-circular hole 407 from the outside of the body 401, and half of the second positioning ring 4012 can be seen through the second semi-circular hole 408.

[0069] A first blind hole perpendicular to its axis is provided in the first positioning ring 4011 (one end on the outer surface of the first positioning ring is the open end, and the other end is the closed end). A first spring 4013 and a first locking ball 4014 are installed in the first blind hole. One end of the first spring 4013 is fixedly connected to the bottom of the first blind hole, and the other end is connected to the lower end of the first locking ball 4014. When the first locking ball 4014 is pressed, the first locking ball 4014 enters the first blind hole. When there is no external force, the first spring 4013 pushes up the first locking ball 4014, so that the upper half of the first locking ball 4014 is located outside the first blind hole. Preferably, the central axis of the first blind hole is aligned with the center of the first semi-circular hole 407, that is, on the straight line where the 90-degree radius of the first semi-circular hole 407 is located.

[0070] Similarly, a second blind hole perpendicular to its axis is provided in the second positioning ring 4012 (one end on the outer surface of the second positioning ring is the open end, and the other end is the closed end). A second spring 4015 and a second locking ball 4016 are installed in the second blind hole; one end of the second spring 4015 is fixedly connected to the bottom of the second blind hole, and the other end is connected to the lower end of the second locking ball 4016. When the second locking ball 4016 is pressed, the second locking ball 4016 enters the second blind hole. When there is no external force, the second spring 4015 pushes up the second locking ball 4016, so that the upper half of the second locking ball 4016 is located outside the second blind hole. Preferably, the central axis of the second blind hole is aligned with the center of the second semi-circular hole 408, that is, on the straight line where the 90-degree radius of the second semi-circular hole 408 is located.

[0071] As Figure 6As shown, the slit grating 405 includes a grating wheel; the grating wheel includes a circular grating disc 4051 and a first annular flange 4052 located at the edge of the grating disc 4051 and perpendicularly connected to the grating disc 4051. A plurality of slits 4053 with different lengths and widths are formed in the grating disc 4051, and the center lines of different slits 4053 are located on different radii of the grating disc 4051, that is, the plurality of slits 4053 are radially distributed on the grating disc 4051. Preferably, 3 slits 4053 are evenly distributed on the upper half circular surface of the grating disc 4051, and more slits 4053 can also be provided according to actual needs. The inner diameter of the first annular flange 4052 matches the outer diameter of the first positioning ring 4011. The first positioning ring 4011 can be inserted into the first annular flange 4052, and the first annular flange 4052 can rotate relative to the first positioning ring 4011, thereby driving the entire grating disc 4051 to rotate relative to the first positioning ring 4011; a plurality of first grooves 4054 are formed on the inner surface of the first annular flange 4052, and the inner diameter of the first grooves 4054 matches the diameter of the first locking balls 4014. The upper half of the first locking balls 4014 can enter the first grooves 4054. Preferably, the first grooves 4054 correspond to the slits 4053 one by one. Looking along the central axis direction of the grating wheel, the center line of each first groove 4054 and the center line of its corresponding slit 4053 are located on the same radius.

[0072] Further, in order to facilitate the rotation of the grating wheel, a first card slot 4055 is provided on the outer surface of the first annular flange 4052. One end of the first dial 409 can be inserted into the first card slot 4055, and the width of the first dial 409 matches the inner diameter of the first semi-annular hole 407, so that the axial movement of the grating wheel can be restricted after the first dial 409 is inserted into the first card slot 4055. Preferably, the first card slot 4055 is opposite to the middle first groove 4054 among all the first grooves 4054, that is, the first card slot 4055 is located in the middle of the upper half of the first annular flange 4052. In this way, the middle slit 4053 can be indicated by the first dial 409. Of course, the first card slot 4055 can also be set at a position opposite to any first groove 4054.

[0073] Preferably, the outer wall of the main body 401 is marked with the number of crack gears, and the number of crack gears is marked on one side of the first semi-annular hole 407. The number of crack gears corresponds to the crack 4053 one by one, for example: the number of crack gears is 1, 2, and 3, wherein the size of the crack 4053 corresponding to the crack gear number 1 is: 1 mm × 1 mm, the size of the crack 4053 corresponding to the crack gear number 2 is 1 mm × 2 mm, and the size of the crack 4053 corresponding to the crack gear number 3 is 3 mm × 4 mm. The cracks 4053 of three sizes from 1 to 3 are evenly distributed on the upper half of the circular surface of the grating disk 4051, and the first slot 4055 is aligned with the crack 4053 corresponding to the gear number 2.

[0074] During installation, the grating wheel is placed from the front end of the main body 401 into the inner cavity of the main body 401, and the first annular flange 4052 on the grating wheel is installed on the first positioning ring 4011, and the grating wheel is rotated so that the first slot 4055 of the first annular flange 4052 is located at the center of the first semi-annular hole 407. At this time, the first locking ball 4014 enters the first groove 4054 corresponding to the middle crack 4053, and then one end of the first paddle 409 is inserted into the first slot 4055, and the other end of the first paddle 409 is located outside the main body 401, and the installation of the grating wheel is completed. At this time, the first paddle 409 is aligned with the crack gear number 2, and light can pass through the crack 4053 corresponding to the crack gear number 2. When the size of the crack needs to be adjusted, the grating wheel can be driven to rotate by turning the first paddle 409. When the grating wheel rotates, the first locking ball 4014 is pressed into the first blind hole and will not block the rotation of the grating wheel. When the grating wheel rotates to align with the first blind hole, the first locking ball 4014 enters the first groove 4054. At this time, the first locking ball 4014 locks the grating wheel, and the grating wheel no longer rotates. The light can pass through the crack 4053 corresponding to the crack gear number 1. In this way, the grating wheel can be rotated by turning the first paddle 409 to obtain the crack 4053 of the required size. The light passing through different cracks 4053 has different lengths and widths. When in use, the user can be directly told which crack 4053 with which crack gear number needs to be used, and the user can turn the first paddle 409 to align it with the corresponding crack gear number.

[0075] like Figure 7As shown in the figure, the filter mechanism 406 includes: a filter wheel; the filter wheel includes: a circular filter disc 4061 and a second annular flange 4062 located at the edge of the filter disc 4061 and perpendicularly connected to the filter disc 4061. A plurality of holes are formed in the filter disc 4061, and the centers of the plurality of holes are distributed on a circumference concentric with the filter disc 4061. Different color filter sheets 4063 are installed in each hole, and light passing through different color filter sheets 4063 becomes light of different colors. Preferably, 5 holes are evenly distributed on the upper half circular surface of the filter disc 4061, and filter sheets 4063 capable of transmitting achromatic light, blue light, green light, red light, and white light are respectively installed in the holes. For example, light becomes achromatic light after passing through the achromatic light filter sheet 4063, and becomes blue light after passing through the blue light filter sheet 4063, and so on. More filter sheets 4063 of different colors can also be set according to actual needs.

[0076] The inner diameter of the second annular flange 4062 matches the outer diameter of the second positioning ring 4012. The second positioning ring 4012 can be inserted into the second annular flange 4062, and the second annular flange 4062 can rotate relative to the second positioning ring 4012, thereby driving the entire filter wheel to rotate relative to the second positioning ring 4012; a plurality of second grooves 4064 are formed on the inner surface of the second annular flange 4062, and the inner diameter of the second grooves 4064 matches the diameter of the second locking balls 4016. The upper half of the second locking balls 4016 can enter the second grooves 4064. The second grooves 4064 correspond to the filter sheets 4063 one by one. Looking along the central axis direction of the filter wheel, the center line of each second groove 4064 and the center line of its corresponding filter disc 4061 are located on the same radius. A second card slot 4065 is provided on the outer surface of the second annular flange 4062. One end of the second dial 410 can be snapped into the second card slot 4065. The width of the second dial 410 matches the inner diameter of the second semi-circular hole 408, so that the second dial 410 can limit the axial movement of the filter wheel after being snapped into the second card slot 4065. Preferably, the second card slot 4065 is opposite to the middle second groove 4064 among all the second grooves 4064, that is, the second card slot 4065 is located in the middle of the upper half of the first annular flange 4052. In this way, the middle filter disc 4061 can be indicated by the second dial 410. Of course, the second card slot 4065 can also be set at a position opposite to any second groove 4064.

[0077] Preferably, color names are marked on the outer wall of the main body 401, and the color names are marked on one side of the second semi-annular hole 408. The color names correspond to the filter disc 4061 one by one. For example, the color names are red-free, blue, green, red, and white (of course, numbers can also be used to correspond to colors, for example, 1 for red-free, 2 for blue, and so on), corresponding to red-free light, blue light, green light, red light, and white light, respectively. In this way, filters 4063 of the five colors of red-free, blue, green, red, and white are evenly distributed on the upper half of the circular surface of the filter disc 4061, and the second card slot 4065 is aligned with the green filter 4063 corresponding to green.

[0078] During installation, the filter wheel is placed into the inner cavity of the main body 401 from the rear end of the main body 401, and the second annular flange 4062 on the filter wheel is installed on the second positioning ring 4012, and the filter wheel is rotated so that the second slot 4065 of the second annular flange 4062 is located at the center of the second semi-annular hole 408. At this time, the second locking ball 4016 enters the second groove 4064 corresponding to the middle filter 4063, and then one end of the second paddle 410 is inserted into the second slot 4065, and the other end of the second paddle 410 is located outside the main body 401, and the installation of the filter wheel is completed. At this time, the second paddle 410 is aligned with the green filter disk 4061, and light can pass through the green filter disk 4061. When the color needs to be adjusted, the filter wheel can be driven to rotate by turning the second paddle 410. When the filter wheel rotates, the second locking ball 4016 is pressed into the second blind hole and does not block the filter wheel from rotating. When the filter wheel rotates to align with another second groove 4064 (for example, the second groove 4064 corresponding to the blue color) and the second blind hole, the second locking ball 4016 enters the second groove 4064. At this time, the second locking ball 4016 locks the filter wheel, and the filter wheel no longer rotates. Light can pass through the blue filter 4063. In this way, the filter wheel can be rotated by turning the second paddle 410 to obtain light of the desired color. Light passing through different filters 4063 has different colors. When in use, the user can be directly told which color filter 4063 needs to be used, and the user can turn the second paddle 410 to make it correspond to the corresponding color name.

[0079] The light emitted by the light source 404 is located above the central axis of the housing, and the central axis of the reflective prism is located above the central axis of the housing. After adjusting the slit grating 405 and the filter mechanism 406, the light emitted from the light source 404 sequentially passes through the filter 4063 of the selected color on the filter disk 4061, the slit 4053 of the selected size on the grating disk 4051, and the reflective prism before being emitted. In this way, the light emitted by the light source 404 is suitable for specific observation or imaging needs, can provide the required illumination for eye examination, and is suitable for a variety of eye examinations.

[0080] The reflecting prism adopts an existing reflecting prism. After the light from the slit grating passes through the reflecting prism, on the one hand, the direction of the light can be changed (because the reflecting prism can accurately reflect the light to a new direction, which allows the light to be directed to a specific part of the eye), and on the other hand, the layout of the optical system is made more compact (because by using a reflecting prism to change the light path, a more compact and flexible optical system can be designed, which is crucial for the portability and operability of the device). The angle of the reflecting prism is determined according to the required optical path design and imaging target, so that the light is emitted in a direction at a certain angle to the central axis of the shell, which is helpful for directing the light to a specific part of the eye instead of directly into the eye.

[0081] Reflective prisms are usually made of high-quality optical glass and wear-resistant and scratch-resistant materials to ensure maximum optical performance and durability of the device. Considering its application in eyewear, lightweight and durable materials such as BK7 glass or other highly transparent optical plastics may be selected.

[0082] In actual use, the adjustment process of the flexible rod 3 is as follows: first, determine the number of slit gears and the color of the filter required for illumination according to the shooting requirements, then turn the first paddle 409 and the second paddle 410 in turn to rotate the grating disk 4051 to the corresponding slit gear position and the filter disk 4061 to the corresponding color name, and then adjust the flexible rod 3 to the appropriate position where the light outlet hole 411 of the light-emitting component 4 is aligned with the user's eyes. Because different detection items may require light to illuminate different areas of the eye, the position of the flexible rod 3 is adjusted according to the actual detection needs to ensure that the light is accurately irradiated to the required eye area. The device of the utility model can be used to perform a comprehensive eye examination, including but not limited to corneal, anterior chamber, pupil light reflex, iris and fundus retinal detection.

[0083] Further, a communication device is provided on the glasses, and the communication device includes: a microphone and a speaker. Two microphones are respectively arranged on the frames outside the two lenses 102 for receiving voice commands or feedback from the subject. For example, the subject can control the functions of the device of the present utility model by saying commands such as "take a photo", "record a video", etc.; the subject can also control the device of the present utility model to perform eye detection or training on the subject by saying commands such as "detect", "train", etc.; the subject can also select and control the immersive media content displayed and played by the device of the present utility model by saying commands such as "play", "pause", "switch", etc. After the microphone receives the voice command or feedback from the subject, it will convert it into a recognizable signal and transmit it to the control unit of the device of the present utility model. The control unit converts the signal into an executable command through a voice recognition module and performs corresponding operations according to the command. At the same time, the control unit can also convert the output voice information into playable sound through the voice recognition module and play it to the subject through the speaker of the device of the present utility model. In this way, the subject can conveniently use and control the device of the present utility model through voice interaction. These are all mature technologies and will not be elaborated here. A pair of speakers are provided on the glasses for outputting sound information or prompts to the subject; the two speakers are respectively arranged on the temple 103 and close to the free end of the temple 103. After the user wears the glasses, the speakers are located in front of the ears and can transmit the sound to the inner ear of the subject through bone conduction.

[0084] Further, a gyroscope is also provided on the glasses for collecting the head posture and movement data of the subject. The gyroscope can be arranged on the inner side of the temple 103.

[0085] Further, an accelerometer is provided on the glasses for detecting the head acceleration and movement of the subject. The accelerometer can be arranged on the inner side of the temple 103, and the accelerometer can adopt an existing micro-accelerometer.

[0086] Further, a magnetometer is provided on the glasses for detecting the head direction and position of the subject. The magnetometer can be arranged on the outside of the frame. By fusing the data of the gyroscope with other sensors such as the accelerometer and the magnetometer, the angular velocity and angular displacement of the subject's head relative to the gravity reference plane or the device coordinate system can be calculated. The specific calculation method can adopt existing algorithms and is not within the protection scope of the present utility model.

[0087] Further, a wireless communication module is provided on the glasses for communicating with the subject's smart phone or other devices; the wireless communication module can be arranged on the temple 103.

[0088] Further, a battery is provided on the glasses for supplying power to the above components, and the battery can be arranged on the temple 103.

[0089] Further, a controller is provided on the glasses for controlling the display or functions of the glasses. It can adopt different forms and interaction methods, such as buttons, touch pads, gestures, voice, etc. The controller can be arranged on the frame or the temple 103.

[0090] The microphone, speaker, gyroscope, accelerometer, magnetometer, wireless communication module, battery, and controller are all mature products and will not be elaborated here.

[0091] The following detections and trainings can be carried out using the above eye detection device:

[0092] 1. Orthokeratology lens wearing detection:

[0093] Adjust the flexible rod 3 according to the corneal photographing requirements so that the light irradiates the eye area to be photographed. Use the camera to take a corneal photograph, and the corneal photograph is input into the existing software through the controller for analysis, and then it can be evaluated whether the corneal surface is abnormal.

[0094] 2. Retinal disease health monitoring:

[0095] Adjust the flexible rod 3 according to the retinal photographing requirements so that the light irradiates the eye area to be photographed. Use the camera to take a fundus photograph, and the fundus photograph is input into the existing software through the controller for analysis, and then the retinal lesion condition can be obtained, such as identifying age-related macular degeneration or diabetic retinopathy, etc.

[0096] 3. Nervous system monitoring:

[0097] Adjust the flexible rod 3 according to the nervous system photographing requirements so that the light irradiates the eye area to be photographed. Use the camera to record the eye (i.e., track eye movement and pupil reaction), and then send the image to the existing software through the controller for analysis, and then the pupil light reaction and eye movement tracking data can be obtained.

[0098] 4. Cardiovascular system monitoring:

[0099] Adjust the flexible rod 3 according to the cardiovascular system photographing requirements so that the light irradiates the eye area to be photographed. Use the camera to take a fundus vascular image, and then send the fundus vascular image to the existing software through the controller for analysis, and then the vascular change condition can be obtained. Through the vascular change condition, the health status of the vascular system can be evaluated.

[0100] 5. Visual training:

[0101] Customize the training content according to the user's vision condition, and display the training content through the lens 102, thereby helping the user to train the eyes. For example, when the subject selects eye training, the training content is displayed on the lens 102. The subject moves the head or eyes to align the line of sight with the training content, and confirms finding the target graphic in the training content through voice commands or touch operations. During this process, the camera collects the eye pictures or images of the subject in real time, and various detections of the eyes are realized through these pictures or images.

[0102] 6. The pupillary light reflex can be obtained by using the present utility model. Doctors can judge whether the subject has nervous system diseases such as abnormal pupillary sensitivity and pupillary dysfunction through the pupillary light reflex. How to judge specifically is not within the protection scope of the present utility model. An image database of normal people can be collected in advance to form the change range of normal people, and then the present utility model device is used to collect the images of patients, and the eye images and data of the subject are sent to a smart phone or other devices through the wireless communication module. By comparing the images of the patient with those of normal people, the specific situation of the patient can be judged. A beam of visible light can also be emitted to the eyes of the subject through the light source 404, and the reflected light or scattered light of the subject's eyes is received through the optical sensor. The data collected by the optical sensor can be used to judge whether the subject has iris diseases such as abnormal iris pigmentation, iritis, and iris neovascularization. A series of light rays with different wavelengths and intensities can also be continuously emitted to the eyes of the subject through the light source 404, and the pupil size generated by the subject under light stimulation is recorded through the optical sensor. At the same time, a retinal photograph is taken to record the morphological parameters of the retinal nerve fiber layer and blood vessels. The pupil size and retinal photograph can be used to record the fiber layer and morphological parameters, and these are realized by using a variety of existing methods, which are not within the protection scope of the present utility model. VR, AR, and XR glasses have an open software platform, which is open source, and relevant programs can be written according to existing algorithms to achieve these judgments.

[0103] The present utility model uses the light source module to illuminate the eyes of the subject, and uses the acquisition module to collect images and optical signals of the eyes of the subject. The eye biological indexes such as pupil diameter, pupillary light reflex, iris texture, fundus retinal blood vessels, and retinal neuro-vascular coupling reaction can be obtained by using the images and optical signals collected by the present utility model, thereby realizing the function of the "digital eye" capable of performing eye detection and training.

[0104] In addition, the present utility model realizes the precise tracking and positioning of the head posture and movement of the subject, and further realizes high-precision viewing angle control and scene switching; moreover, the present utility model realizes data transmission and control with a smart phone or other devices to achieve functions such as data synchronization, cloud storage, remote diagnosis, etc.; in addition, the present utility model can provide various application programs such as eye fixation vision training and strabismus and amblyopia training for the subject by using an open-source software platform, and the application program platform can be infinitely expanded to help the subject improve the visual function and the level of eye health.

[0105] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0106] In the description of the present utility model, unless otherwise specified, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0107] The above technical solutions are only one implementation manner of the present utility model. For those skilled in the art, based on the disclosed principles of the present utility model, it is very easy to make various types of improvements or deformations, and not limited to the technical solutions described in the above specific embodiments of the present utility model. Therefore, the foregoing description is only preferred and does not have a restrictive meaning.

Claims

1. An eye detection device, characterized in that: The device comprises: glasses, and a collection module and a light source module arranged on the glasses; The acquisition module is used to acquire images and light signals; The light source module is used for lighting; The glasses include a frame, which includes a glasses frame and temples respectively arranged on both sides of the glasses frame; The light source module comprises: a flexible rod and a light-emitting component; One end of the flexible rod is connected to the front part of the temple, and the other end of the flexible rod is a free end; The light emitting component is connected to the free end of the flexible rod; The light emitting component comprises: a housing, and a light source, a filter mechanism, a slit grating and a reflecting prism arranged in the housing; The light filtering mechanism comprises a light filtering wheel; The slit grating includes a grating wheel.

2. The eye detection device according to claim 1, characterized in that: Two lenses are arranged on the eyeglass frame; The glasses are VR glasses, AR glasses or XR glasses.

3. The eye detection device according to claim 2, characterized in that: The acquisition module includes two cameras with built-in optical sensors, and the two cameras are respectively embedded in the upper parts of two lenses.

4. The eye detection device according to claim 1, characterized in that: The housing comprises: a body, and a front end cover and a rear end cover arranged at both ends of the body; A cable hole is opened in the middle of the body, the free end of the flexible rod is connected to the middle of the body, and the inner cavity of the flexible rod is connected to the cable hole on the body; A light exit hole is opened on the front end cover, and a reflecting prism is installed in the light exit hole; The light source is arranged on the inner side of the rear end cover, and the cable connected to the light source passes through the cable hole on the body and then enters the inner cavity of the flexible rod; In the inner cavity of the main body, a slit grating and a filter mechanism are arranged in sequence from the front end to the rear end.

5. The eye detection device according to claim 4, characterized in that: A first semi-annular hole and a second semi-annular hole coaxial with the body are provided in the middle of the wall of the body; the two semi-annular holes are located on the same side semi-cylindrical surface of the body; A first positioning ring and a second positioning ring coaxial with the body are arranged in the inner cavity of the body; the first positioning ring is aligned with the first semi-annular hole; The second positioning ring is aligned with the second semi-annular hole; A first blind hole perpendicular to the axis of the first positioning ring is formed on the first positioning ring, a first spring and a first locking ball are installed in the first blind hole, one end of the first spring is fixedly connected to the bottom of the first blind hole, and the other end is connected to the lower end of the first locking ball; A second blind hole perpendicular to the axis of the second positioning ring is formed, in which a second spring and a second locking ball are installed; one end of the second spring is fixedly connected to the bottom of the second blind hole, and the other end is connected to the lower end of the second locking ball.

6. The eye detection device according to claim 5, characterized in that: The grating wheel comprises: a circular grating disk and a first annular flange located at the edge of the grating disk and vertically connected to the grating disk; A plurality of cracks of different lengths and widths are opened on the circular surface of the upper half of the grating disk, and the center lines of different cracks are located at different radii of the grating disk; The first positioning ring can be inserted into the first annular flange, and the first annular flange can rotate relative to the first positioning ring; A plurality of first grooves are formed on the inner surface of the first annular flange, and the upper half of the first locking ball can enter into the first grooves; The first grooves correspond to the cracks one by one.

7. The eye detection device according to claim 6, characterized in that: A first clamping groove is arranged on the outer surface of the first annular flange; one end of the first paddle can be clamped into the first clamping groove.

8. The eye detection device according to claim 5, characterized in that: The filter wheel comprises: a circular filter disc and a second annular flange located at the edge of the filter disc and vertically connected to the filter disc; A plurality of holes are opened on the upper circular surface of the filter disc, the centers of the plurality of holes are distributed on a circumference of a circle co-centered with the filter disc, and a filter of a different color is installed in each hole; The second positioning ring can be inserted into the second annular flange, and the second annular flange can rotate relative to the second positioning ring; A plurality of second grooves are formed on the inner surface of the second annular flange, and the upper half of the second locking ball can enter into the second grooves; The second grooves correspond to the filters one by one.

9. The eye detection device according to claim 8, characterized in that: A second slot is provided on the outer surface of the second annular flange, and one end of the second paddle can be inserted into the second slot.

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