Portable eye image acquisition device

Abstract

The utility model discloses a portable eye image acquisition device. Comprising a shell; the camera module is fixedly connected to the front side of the shell; the LED lamp unit is arranged on the front side of the camera module and comprises a high-brightness LED lamp group and a low-brightness LED lamp group; the high-brightness LED lamp group is used for providing light which enables the camera module to acquire iris texture and tissue structure images, and the low-brightness LED lamp group is used for providing light which enables the camera module to acquire sclera texture and tissue structure images; a plurality of LED lamp sets with different brightness are arranged, and the LED lamp sets are turned on according to different lighting requirements; when the camera module needs to acquire the iris texture and organization structure image, the high-brightness LED lamp group is turned on; when overexposure of the eye image collected by the camera module is prevented, the low-brightness LED lamp group is turned on; therefore, according to the utility model, the functions of increasing the types of collected objects and improving the functional diversity of the collecting device can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically a portable eye image acquisition device. Background Technology

[0002] As the primary organ of vision, the health of the eyes not only affects their function but can also reflect signs of other diseases or sub-health conditions. Common eye diseases include myopia, hyperopia, and astigmatism caused by refractive errors; macular degeneration; glaucoma; cataracts; diabetic retinopathy; floaters; and various eye injuries. Furthermore, certain pathological features of the eyes are closely related to systemic diseases or unhealthy physical conditions. For example, bloodshot eyes may be a sign of high blood pressure or excessive fatigue, while yellowing of the eyes may be due to bilirubin accumulation caused by liver dysfunction such as hepatitis or cirrhosis.

[0003] Therefore, proactive eye health management is essential. Early detection and effective intervention and treatment of related diseases can reduce treatment difficulty, minimize side effects, and improve cure rates. Currently, one of the main methods of eye health management is acquiring eye images for auxiliary diagnosis. However, there is relatively little applied research in the field of eye image acquisition, products have not yet developed industry-specific characteristics, and there is no clear direction for development.

[0004] Existing eye examination equipment, such as ophthalmoscopes, slit-lamp microscopes, and fundus cameras, can provide diagnostic evidence for most eye diseases, but these devices have drawbacks such as complex operation procedures, high cost, large size, and inconvenience in portability.

[0005] However, portable iris scanners on the market have problems such as limited acquisition function (can only acquire iris images), low image clarity, and inability to fully display eye image details, resulting in low diagnostic accuracy. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a portable eye image acquisition device. By setting up multiple groups of LED lights with different brightness levels, each group can be turned on and off to meet different lighting needs. In this way, this utility model can increase the variety of objects that can be acquired.

[0007] To achieve the above-mentioned technical objectives, the present invention employs the following technical means:

[0008] A portable eye image acquisition device; comprising:

[0009] case;

[0010] The camera module is fixedly connected to the front side of the housing;

[0011] An LED light unit is located on the front side of the camera module, including a high-brightness LED light group and a low-brightness LED light group; the high-brightness LED light group is used to provide light that enables the camera module to capture images of iris texture and tissue structure, and the low-brightness LED light group is used to provide light that enables the camera module to capture images of scleral texture and tissue structure.

[0012] A light-shielding front tube covers the outside of the camera module and LED light unit to isolate natural light.

[0013] The camera module includes a lens base and a camera lens;

[0014] The lens base is fixed to the front side of the housing by screws at its four corners.

[0015] The camera lens is fixed to the middle of the lens base, and a lens focusing gear is sleeved on its outside; the lens focusing gear is used to adjust the focal length of the camera module.

[0016] The side wall of the light-shielding front cylinder is provided with a rectangular opening, and a manual focusing gear is rotatably connected inside the opening via a rotating shaft.

[0017] The manual focusing gear meshes with the lens focusing gear and is used to drive the lens focusing gear to adjust the focal length of the camera lens.

[0018] A circular opening is provided in the middle of the light-shielding front cylinder;

[0019] A ring-shaped LED light panel is provided between the light-shielding front tube and the camera module, around the circular opening;

[0020] The high-brightness LED light group is provided with at least one pair of high-brightness LED lights, which are symmetrically fixed on the left and right sides of the lighting LED light panel;

[0021] The low-brightness LED light group is provided with at least one pair of low-brightness LED lights, which are symmetrically fixed on the left and right sides of the lighting LED light panel;

[0022] A high-brightness LED switch connecting to the high-brightness LED group is fixed on the left side of the lighting LED panel, and a switch connecting to the low-brightness LED group is fixed on the right side.

[0023] A contact power supply board is coaxially sleeved on the columnar protrusion of the lens base, which is used to supply power to the camera lens;

[0024] The first contact post is installed on the side of the contact power supply board facing the camera lens;

[0025] The LED light panel is equipped with a second contact post on the side facing the camera lens;

[0026] The first contact post and the second contact post are respectively arranged, and when they make contact, the power supply of the lighting LED light panel is realized.

[0027] The housing includes a rear housing and a front housing, which are connected by a detachable component.

[0028] The front wall of the shell is designed with a recessed striped pattern.

[0029] An arc-shaped notch is provided on the upper side of the free end of the light-shielding front cylinder.

[0030] The beneficial effects of this utility model are as follows:

[0031] First, the acquisition device provided in this application uses multiple sets of LED lights of different brightness to be turned on separately for different lighting needs; when it is necessary for the camera module to acquire images of iris texture and tissue structure, the high-brightness LED lights are turned on; when it is necessary to prevent the eye images acquired by the camera module from being overexposed, the low-brightness LED lights are turned on; thereby, this utility model can increase the types of acquisition objects and improve the functional diversity of the acquisition device.

[0032] Secondly, the light-shielding front tube provided in this application can effectively block external light from interfering with the camera module's image capture by covering the user's eye socket; at the same time, the focal length of the camera module can be adjusted by the manual focus gear to improve the image clarity; thus, this utility model can improve the image clarity while avoiding external interference. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which:

[0035] Figure 1 This is a schematic diagram of the overall structure of a portable eye image acquisition device according to this application;

[0036] Figure 2 This is a rear view of the rear shell of a portable eye image acquisition device according to this application;

[0037] Figure 3 This is a front view of the rear shell of a portable eye image acquisition device according to this application;

[0038] Figure 4 This is a rear view of the front housing of a portable eye image acquisition device according to this application;

[0039] Figure 5 This is a front view of the front housing of a portable eye image acquisition device according to this application;

[0040] Figure 6 This is a front view of the contact power supply board and camera module of a portable eye image acquisition device according to this application;

[0041] Figure 7 This is a left view of the contact power supply board and camera module of a portable eye image acquisition device according to this application;

[0042] Figure 8 This is a rear view of the LED light panel of a portable eye image acquisition device according to this application;

[0043] Figure 9 This is a front view of an LED light panel for a portable eye image acquisition device according to this application;

[0044] Figure 10 This is a rear view of the light-shielding front tube of a portable eye image acquisition device according to this application;

[0045] Figure 11 This is a front view of the light-shielding front tube of a portable eye image acquisition device according to this application;

[0046] Figure 12 This is a top view of the light-shielding front tube of a portable eye image acquisition device according to this application;

[0047] Figure 13 This is a schematic diagram showing the working state of the lens focusing gear and the manual focusing gear of a portable eye image acquisition device according to this application.

[0048] In the diagram: 1. Rear shell; 2. Front shell; 3. Camera module; 4. Contact power supply board; 5. Lens focusing gear; 6. Illumination LED light panel; 7. Light-shielding front cylinder of the acquisition device; 8. Manual focusing gear; 9. Rear shell waist fixing post; 10. Rear shell end fixing post; 11. Wiring opening; 13. Front shell fixing post; 14. Front shell screw hole; 15. Rectangular groove; 16. High-brightness LED light switch; 17. Low-brightness LED light switch; 18. 19. Low-brightness LED light group; 20. High-brightness LED light group; 21. Second contact post; 22. Lamp board screw hole; 23. Fixing screw hole; 24. First contact post; 25. Base screw hole; 26. Lens base; 27. Camera lens; 28. Shaft hole; 29. ​​Front cover screw hole; 30. Front cover fixing post; 31. Circular opening; 32. Rotating shaft; 33. Arc-shaped notch; 34. Round hole; 35. Through hole; 36. Small hole; 37. Rectangular opening. Detailed Implementation

[0049] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0050] like Figures 1 to 8 As shown, this utility model provides a portable eye image acquisition device; including: a housing; a camera module 3, fixedly connected to the front side of the housing; an LED light unit, disposed on the front side of the camera module 3, including a high-brightness LED light group 19 and a low-brightness LED light group 18; the high-brightness LED light group 19 is used to provide light that enables the camera module 3 to acquire images of iris texture and tissue structure, and the low-brightness LED light group 18 is used to prevent overexposure of the eye images acquired by the camera module 3; a light-shielding front tube, covering the camera module 3 and the LED light unit, for isolating natural light.

[0051] like Figure 2 and 3 As shown, the housing includes a rear shell 1 and a front shell 2. The front shell 2 and the rear shell 1 are fixed by screwing screws into the fixing posts of the front shell 2 and the end fixing posts of the rear shell 1. The USB data cable of the camera module 3 extends out from the wiring opening 11.

[0052] like Figure 2 As shown, four waist-mounted fixing posts in the middle of the rear shell 1 are used to fix the camera module 3, while the end fixing posts at the top and bottom of the rear shell 1 are used to cooperate with the front shell 2 to form the outer shell structure. At the same time, the rectangular groove 15 in the middle of the interior facilitates the camera module 3, which is fixed to the rear shell 1, to protrude from the lens base 25, the contact power supply board 4, and the camera lens 26.

[0053] like Figure 2 As shown, the front side wall of the shell (i.e. the handheld part) is designed with a recessed striped pattern to increase friction and ensure grip stability.

[0054] like Figure 4 As shown, the camera module 3 includes a lens base 25 and a camera lens 26. The four corners of the lens base 25 are fixed to the front side of the housing by screws. The camera lens 26 is fixed to the middle of the lens base 25, and a lens focusing gear 5 is sleeved on its outside. A through hole 34 is opened in the center of the lens focusing gear 5 to facilitate the lens focusing gear 5 being sleeved on the outside of the camera lens 26. The lens focusing gear 5 is used to adjust the focal length of the camera module 3. A rectangular opening 36 is provided on the side wall of the light-shielding front cylinder, and a manual focusing gear 8 is rotatably connected inside it through a rotating shaft 31. The manual focusing gear 8 meshes with the lens focusing gear 5 and is used to drive the lens focusing gear 5 to adjust the focal length of the camera lens 26.

[0055] like Figure 4As shown, the four corners of the lens base 25 are fixed to the housing with screws. Specifically, the lens base 25 is fixed to the waist fixing post of the rear housing 1 with self-tapping screws through the base screw holes 24.

[0056] like Figure 5 and 6 As shown, a circular opening 30 is provided in the middle of the light-shielding front tube; a ring-shaped lighting LED light panel 6 is provided around the circular opening 30 between the light-shielding front tube and the camera module 3; the high-brightness LED light group 19 is provided with at least one pair of high-brightness LEDs, which are symmetrically fixed on the left and right sides of the lighting LED light panel 6; the low-brightness LED light group 18 is provided with at least one pair of low-brightness LEDs, which are symmetrically fixed on the left and right sides of the lighting LED light panel 6; a high-brightness LED light switch 16 connected to the high-brightness LED light group 19 is fixed on the left side of the lighting LED light panel 6, and a switch connected to the low-brightness LED light group 18 is fixed on the right side of the lighting LED light panel 6.

[0057] The LED high-brightness light group and the LED low-brightness light group correspond to the two lighting modes of the eye image acquisition device: When shooting the sclera, press the low-brightness LED light switch 17 to turn on the two low-brightness LED bulbs to prevent the acquired eye image from being overexposed and to avoid loss of scleral data; when shooting the iris, press the high-brightness LED light switch 16 on the other side of the acquisition device to turn on the two high-brightness LED bulbs, allowing light to pass through the lens behind the iris, so that the camera can acquire clear images of iris texture and tissue structure.

[0058] Among them, four lighting LED beads - low-brightness LED and high-brightness LED - are installed in sequence on both sides of the circular opening 30 inside the front tube of the collection tube and are welded to the lighting LED board 6.

[0059] like Figure 1 and 4 As shown, a contact power supply board 4 is coaxially sleeved on the lens base 25, which is used to supply power to the camera lens 26; a first contact post 23 is installed on the side of the contact power supply board 4 facing the camera lens 26; a second contact post 20 is installed on the side of the lighting LED light board 6 facing the camera lens 26; the first contact post 23 and the second contact post 20 are correspondingly arranged and make contact to realize the power supply of the lighting LED light board 6; wherein, the lighting LED light board 6 is connected to the lens base 25 by screws passing through the fixing screw hole 22.

[0060] like Figure 4 As shown, the contact power supply board 4 is powered and grounded by the camera module 3 through soldered wires.

[0061] like Figure 1As shown, the lighting LED light board 6 is fixed to two fixed posts below the circular opening 30 inside the light-shielding front cylinder by screws. The lighting LED light board 6 is powered by contacting two first contact posts 23 and two second contact posts 20 on the contact power supply board 4.

[0062] like Figure 1 and 5 As shown, the installed light-shielding front tube is fixed to the front shell 2 screw holes 28 through four front cover screw holes 28; the four corners of the lens base 25 are fixed to the shell by screws.

[0063] like Figure 6 and 7 As shown, the light-shielding front cylinder serves to shield light and ensure stable light during the acquisition process; the rectangular opening 36 on the upper cylinder wall is used to place the manual focusing gear 8, and the rear shaft hole 27 is used to insert the rotating shaft 31 through the middle circular hole 33 of the manual focusing gear 8, so that the manual focusing gear 8 is suspended on the upper wall of the light-shielding front cylinder; at the same time, the two front cover fixing posts 29 inside the light-shielding front cylinder are used to fix the lighting LED light panel 6. Four lighting LEDs are inserted into the small hole 35, and after adjusting the appropriate angle and distance, they are welded and fixed to the lighting LED light panel 6; an arc-shaped notch 32 is opened on the upper side of the free end of the light-shielding front cylinder (at the front opening of the upper cylinder wall), which conforms to the human orbital bone structure and can ensure maximum shielding of external light interference.

[0064] Working principle:

[0065] First, the user holds the casing of this data acquisition device in hand and connects the device to a tablet computer via a USB data cable;

[0066] Then, position the light-blocking front tube directly over the eye that needs to be sampled, fit it against the eye socket of the person being sampled, and gently press the handheld sampling device.

[0067] Next, collect iris or sclera images as needed, turn on the corresponding high-brightness LED light group 19 or low-brightness LED light group 18, and observe the image displayed on the tablet computer at the same time.

[0068] Next, rotate the manual focus gear 8 to adjust the appropriate focal length of the camera lens 26, and at the same time fine-tune the position of the acquisition device. Once the image meets the standard acquisition image requirements, image acquisition will be performed.

Claims

1. A portable eye image acquisition device; characterized in that, include: case; The camera module (3) is fixedly connected to the front side of the housing; An LED light unit is provided on the front side of the camera module (3), including a high-brightness LED light group (19) and a low-brightness LED light group (18); the high-brightness LED light group (19) is used to provide light that enables the camera module (3) to capture images of iris texture and tissue structure, and the low-brightness LED light group (18) is used to provide light that enables the camera module (3) to capture images of scleral texture and tissue structure. A light-shielding front tube covers the outside of the camera module (3) and the LED light unit to isolate natural light.

2. The portable eye image acquisition device according to claim 1, characterized in that: The camera module (3) includes a lens base (25) and a camera lens (26); The lens base (25) is fixed to the front side of the housing by screws at its four corners; The camera lens (26) is fixed to the middle of the lens base (25), and a lens focusing gear (5) is sleeved on its outside; the lens focusing gear (5) is used to adjust the focal length of the camera module (3); The side wall of the light-shielding front cylinder is provided with a rectangular opening (36), and a manual focusing gear (8) is rotatably connected inside it through a rotating shaft (31); The manual focusing gear (8) meshes with the lens focusing gear (5) and is used to drive the lens focusing gear (5) to adjust the focal length of the camera lens (26).

3. The portable eye image acquisition device according to claim 2, characterized in that: A circular opening (30) is provided in the middle of the light-shielding front tube; A ring-shaped LED light panel (6) is fitted around the circular opening (30) between the light-shielding front tube and the camera module (3); The high-brightness LED light group (19) is provided with at least one pair of high-brightness LED lights, which are symmetrically fixed on the left and right sides of the lighting LED light panel (6); The low-brightness LED light group (18) is provided with at least one pair of low-brightness LED lights, which are symmetrically fixed on the left and right sides of the lighting LED light panel (6); The left side of the lighting LED panel (6) is fixed with a high-brightness LED switch (16) that connects to the high-brightness LED group (19), and the right side is fixed with a switch that connects to the low-brightness LED group (18).

4. The portable eye image acquisition device according to claim 3, characterized in that: A contact power supply board (4) is coaxially sleeved on the columnar protrusion of the lens base (25), which is used to supply power to the camera lens (26); The contact power supply board (4) has a first contact post (23) installed on the side facing the camera lens (26); The LED light panel (6) is equipped with a second contact post (20) on the side facing the camera lens (26); The first contact post (23) and the second contact post (20) are respectively arranged to contact each other to realize the power supply of the lighting LED board (6).

5. The portable eye image acquisition device according to claim 1, characterized in that: The housing includes a rear shell (1) and a front shell (2), which are connected by a detachable component.

6. The portable eye image acquisition device according to claim 5, characterized in that: The front wall of the shell is designed with a recessed striped pattern.

7. The portable eye image acquisition device according to claim 1, characterized in that: An arc-shaped notch (32) is provided on the upper side of the free end of the light-shielding front cylinder.

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