Shielding device of eye detection equipment

Abstract

The utility model discloses a shielding device of eye detection equipment, a shielding plate is formed by superposing a rear cover plate, a reflective film, a light guide plate, a dodging plate, a UV printing diaphragm and a semi-transparent shielding plate in sequence, the top of the light guide plate is provided with a lamp groove, a color-changeable LED lamp assembly is installed in the lamp groove, when the LED lamp assembly emits light, the light can be guided by the light guide plate, and the light is emitted by the UV printing diaphragm. When the LED lamp emits red light, the red light can perform thermal therapy on the surface of the eye to increase blood circulation of the eye of a testee, and when the LED lamp emits white light, the red light can perform thermal therapy on the surface of the eye to increase blood circulation of the eye of the testee. A testee can judge whether the eyes are in the preset area or not according to the light projected to the eyes of the testee, the accuracy of the eye positions is improved, when the LED lamp is turned off, the LED lamp can be independently used as a shielding plate, and independent detection of the left eye or the right eye can be achieved in combination with the shielding plate driving mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical electronics, and in particular relates to a shielding device for visual eye detection equipment. Background Art

[0002] Eye movements can reflect the brain physiology and cognitive functions of patients with neurodegenerative diseases. Therefore, an electronic device can be developed to assist in the diagnosis of neurodegenerative diseases. Among them, the accuracy of eye movement data collection is particularly important. Summary of the Invention

[0003] The purpose of the present utility model is to provide a shielding device for eye detection equipment, which can assist the subject's eyes in positioning according to the test requirements during the detection process, can implement thermal therapy on the subject's eyes, optimize the eye condition, thereby helping to improve the detection accuracy and enhance the detection experience.

[0004] In order to solve the above technical problems, this application adopts the following technical solutions:

[0005] A shielding device for an eye detection device is proposed, the eye detection device comprising:

[0006] The device body (101) has a detection circuit, a display interface, and an eye movement data acquisition unit arranged therein, and a window for observing the display interface is provided on the housing; the shielding device comprises:

[0007] The shielding plate comprises a left-eye shielding plate and a right-eye shielding plate, which are arranged side by side on the window and completely block the window when both are closed; the shielding plate is composed of a rear cover plate (11), a reflective film (12), a light guide plate (14), a light homogenizing plate (15), a UV printed film (16) and a semi-transparent shielding plate (8) stacked in sequence; wherein a light trough (13) is provided on the top of the light guide plate (14), and a color-changing LED light assembly is installed in the light trough (13).

[0008] In some embodiments of the present invention, the LED lamp assembly comprises a hidden wiring (5), an LED lamp board (6) and a color-changing LED lamp (7); wherein the hidden wiring (5) is arranged in a groove opened at the edge of the shielding plate, or is printed on the edge of the shielding plate.

[0009] In some embodiments of the present invention, the rear cover plate (11) is fixed to the semi-transparent shielding plate (8) by countersunk screws (9).

[0010] In some embodiments of the present invention, the light guide plate (14) is laser-etched with a texture.

[0011] In some embodiments of the present invention, a reflective sticker (10) is attached to the edge of the light guide plate (14).

[0012] In some embodiments of the present invention, an elliptical transparent area is retained in the middle of the UV printed film (16), and other areas are printed as black opaque areas.

[0013] In some embodiments of the present invention, the transparent area of ​​the prime UV printed film (16) further includes a transparent mark left blank in the black opaque area.

[0014] In some embodiments of the present invention, the device further comprises:

[0015] The shielding plate driving mechanism is respectively arranged on the left side of the left eye shielding plate and the right side of the right eye shielding plate, and consists of a base (102), a motor (3), a fixed shaft (4), a cam (2), a first travel switch (21) and a second travel switch (22); the fixed shaft (4) is connected to the output end of the motor (3); the shielding plate is fixed on the fixed shaft (4); the motor (3) is fixed on the base (102) and is used to drive the fixed shaft (4) to rotate; the cam (2) is fixed on the fixed shaft (4) and is arranged between the first travel switch (21) and the second travel switch (22).

[0016] In some embodiments of the present invention, the shielding plate driving mechanism further includes:

[0017] A small gear connected to the output end of the motor (3);

[0018] A large gear meshes with the small gear; the fixed shaft (4) and the cam (2) are fixed on the axis of the large gear.

[0019] In some embodiments of the present invention, the base (102) of the baffle driving mechanism is a frame structure with two planes, the cam (2), the first travel switch (21) and the second travel switch (22) are arranged at the bottom of the second plane, the motor (3) and the fixed shaft (4) are arranged at the top of the first plane; the large gear and the small gear are arranged between the two planes.

[0020] Compared with the prior art, the advantages and positive effects of the present application are: the shielding device of the eye detection equipment proposed in the present application, the shielding plate is composed of a back cover, a reflective film, a light guide plate, a light homogenizing plate, a UV printed film and a semi-transparent shielding plate stacked in sequence, a light trough is opened on the top of the light guide plate, and a color-changing LED lamp assembly is installed in the lamp trough, when the LED lamp assembly is lit, the light will pass through the light guide of the light guide plate, and part of it will be irradiated on the reflective film, and the reflective film will reflect the light to the light homogenizing plate, so that the light is evenly emitted to the UV printed film and the semi-transparent shielding plate after being homogenized by the light homogenizing plate, when the LED lamp emits red light, the red light can perform thermal therapy on the surface of the eye and increase the blood circulation of the subject's eye, when the LED lamp emits white light, the tester can judge whether the eye is in the preset area based on the light projected onto the subject's eye, thereby increasing the accuracy of the eye position, when the LED lamp is off, it can be used as a shielding plate alone, and combined with the shielding plate driving mechanism, separate detection of the left eye or the right eye can be achieved.

[0021] After reading the detailed description of the embodiments of the present application in conjunction with the accompanying drawings, other features and advantages of the present application will become more apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the eye detection device in this application;

[0023] Figure 2 A top view of the blocking device of the eye detection device proposed in this application;

[0024] Figure 3 A bottom view of the blocking device of the eye detection device proposed in this application;

[0025] Figure 4 A front view of the blocking device of the eye detection device proposed in this application;

[0026] Figure 5 This is a schematic diagram of the structure of the shielding plate in this application;

[0027] Figure 6 This is a schematic diagram of the structure of the UV printed film in this application;

[0028] Figure 7 This is a schematic diagram of the laser-etched texture on the light guide plate in this application;

[0029] Figure 8 This is a schematic diagram of the cam rotation angle and the travel of two travel switches in the shielding plate driving mechanism of this application;

[0030] Figure markings: 101, device body; 102, base; 10, reflective tape; 11, rear cover; 12, reflective film; 13, lamp trough; 14, light guide plate; 15, light diffuser; 16, UV printed film; 2, cam; 21, first travel switch; 22, second travel switch; 3, motor; 4, fixed shaft; 5, hidden wiring; 6, LED light board; 7, color-changing LED light; 8, semi-transparent shielding plate; 9, countersunk screw. DETAILED DESCRIPTION

[0031] The specific implementation methods of this application are further described in detail below with reference to the accompanying drawings.

[0032] The present application aims to provide a shielding device for eye detection equipment, which can automatically switch the shielding plate to realize the detection of the subject's individual eyes, and can enable the tester to accurately locate the subject's eyes based on the shielding plate, assisting the subject's eyes to meet the test positioning requirements, and further can also realize thermal therapy of the eyes through the shielding plate, optimize the subject's eye condition, and ensure the accuracy of the test.

[0033] like Figures 1 to 7 As shown, the occlusion device of the eye detection device proposed in this application includes a device body 101, which houses a detection circuit, a display interface, and an eye movement data acquisition unit. A window for observing the display interface is provided on the housing. The detection circuit includes at least a circuit for receiving and processing eye detection data, a drive circuit for controlling the opening and closing of the occlusion plate, a display circuit for displaying a test icon on the display interface, and a power supply. The eye movement data acquisition unit may be, for example, a binocular camera.

[0034] The shielding device consists of a shielding plate and a shielding plate driving mechanism.

[0035] Specifically, the shielding plate includes a left-eye shielding plate and a right-eye shielding plate, which are arranged side by side on the window and completely block the window when both are closed. The shielding plate is composed of a rear cover plate 11, a reflective film 12, a light guide plate 14, a light diffuser 15, a UV-printed film 16, and a semi-transparent shielding plate 8, which are stacked in sequence. A light trough 13 is provided at the top of the light guide plate 14, and a color-changing LED light assembly is installed within the trough 13. The LED light assembly includes a hidden wiring 5, an LED light board 6, and a color-changing LED light 7. The hidden wiring 5 is arranged in a trough provided at the edge of the shielding plate or printed on the edge of the shielding plate. The rear cover plate 11 is fixed to the semi-transparent shielding plate 8 by countersunk screws 9. A reflective tape 10 is attached to the edge of the light guide plate 14. The light guide plate 14 is laser-etched with a texture. The UV-printed film 16 retains an elliptical transparent area in the center, and the rest of the area is printed as a black opaque area. The transparent area of ​​the UV printed film 16 also includes a transparent logo (as shown by the “closed eye” font in the figure) that is left blank in the black opaque area.

[0036] The shielding plate drive mechanism is arranged on the left side of the left eye shielding plate and the right side of the right eye shielding plate, respectively, and consists of a base 102, a motor 3, a fixed shaft 4, a cam 2, a first travel switch 21, a second travel switch 22, a large gear, and a small gear. The fixed shaft 4 is connected to the output end of the motor 3; the shielding plate is fixed to the fixed shaft 4; the motor 3 is fixed to the base 102 and is used to drive the fixed shaft 4 to rotate; the cam 2 is fixed on the fixed shaft 4 and is arranged between the first travel switch 21 and the second travel switch 22; the small gear is connected to the output end of the motor 3; the large gear meshes with the small gear; the fixed shaft 4 and the cam 2 are fixed to the axis of the large gear. The base 102 of the shielding plate drive mechanism is a frame structure with two planes. The cam 2, the first travel switch 21 and the second travel switch 22 are arranged at the bottom of the second plane, and the motor 3 and the fixed shaft 4 are arranged at the top of the first plane. The large gear and the small gear are arranged between the two planes.

[0037] As mentioned above, when the color-changing LED light 7 on the LED light board 6 illuminates, the light shines into the board through the groove at the top of the light guide plate 14. Some of this light hits the laser test point on the front of the board, where it is reflected onto the reflective film 12. The reflective film 12 then reflects the light onto the light diffuser 15. When the light inside the light guide plate 14 is reflected onto the side edges, the reflective tape 10 reflects the light back into the light guide plate 14. The shielding plate itself is translucent black. When the uniform light shines onto the UV-printed film 16, the text "Close Eyes" is displayed, prompting the subject to close their eyes. The light is evenly distributed in an elliptical area. When the light is red, the light shining through the elliptical area provides thermal therapy to the eye surface, increasing blood circulation. When the light is faint white, the tester can determine whether the subject's eyes are within the area for accurate testing based on the light projected into the eyelids. If the position is inaccurate, the tester can be reminded to adjust the eye position, thereby improving eye position accuracy. When the LED light is off, it can also serve as a left or right eye shield, and the device can detect the left and right eyes separately.

[0038] The shape design rules of cam 2 are shown in the figure. According to the appearance of the camshaft, the two travel switch stroke diagrams and the cam rotation angle diagram are obtained as shown in the figure. Figure 8 As shown in the figure: T1 is the travel of cam 2 before contacting the first travel switch. T0 is the angle of cam 2's rotation when contacting the first / second travel switch (keeping the travel switch in an effectively pressed state). This ensures that the travel switch is pressed for a period of time, preventing false operation of the travel switch. Similarly, the movement trajectory of cam 2 remains consistent with that of the second travel switch. T3 represents one cycle. The left and right sides of T0 are the limit points at which the travel switch is effectively pressed.

[0039] It should be pointed out that the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A shielding device for an eye detection device, the eye detection device comprising: A device body (101) is provided with a detection circuit, a display interface, and an eye movement data acquisition unit, and a window for observing the display interface is provided on the housing; Characterized in that, the shielding device comprises: The shielding plate comprises a left-eye shielding plate and a right-eye shielding plate, which are arranged side by side on the window and completely block the window when both are closed; the shielding plate is composed of a rear cover plate (11), a reflective film (12), a light guide plate (14), a light homogenizing plate (15), a UV printed film (16) and a semi-transparent shielding plate (8) stacked in sequence; wherein a light trough (13) is provided on the top of the light guide plate (14), and a color-changing LED light assembly is installed in the light trough (13).

2. The shielding device of the eye detection device according to claim 1, characterized in that: The LED lamp assembly comprises a hidden wiring (5), an LED lamp board (6) and a color-changing LED lamp (7); wherein the hidden wiring (5) is arranged in a groove opened at the edge of the shielding plate, or is printed on the edge of the shielding plate.

3. The shielding device of the eye detection device according to claim 1, characterized in that: The rear cover plate (11) is fixed to the semi-transparent shielding plate (8) by countersunk screws (9).

4. The shielding device of the eye detection device according to claim 1, characterized in that: The light guide plate (14) is laser-etched with textures.

5. The shielding device of the eye detection device according to claim 1, characterized in that: A reflective sticker (10) is attached to the edge of the light guide plate (14).

6. The shielding device of the eye detection device according to claim 1, characterized in that: An elliptical transparent area is retained in the middle of the UV printed film (16), and other areas are printed as black opaque areas.

7. The shielding device of the eye detection device according to claim 6, characterized in that: The transparent area of ​​the prime UV printed film (16) also includes a transparent mark left empty in the black opaque area.

8. The shielding device of the eye detection device according to claim 1, characterized in that: The device further comprises: The shielding plate driving mechanism is respectively arranged on the left side of the left eye shielding plate and the right side of the right eye shielding plate, and consists of a base (102), a motor (3), a fixed shaft (4), a cam (2), a first travel switch (21) and a second travel switch (22); the fixed shaft (4) is connected to the output end of the motor (3); the shielding plate is fixed on the fixed shaft (4); the motor (3) is fixed on the base (102) and is used to drive the fixed shaft (4) to rotate; the cam (2) is fixed on the fixed shaft (4) and is arranged between the first travel switch (21) and the second travel switch (22).

9. The shielding device of the eye detection device according to claim 8, characterized in that: The shielding plate driving mechanism further includes: A small gear connected to the output end of the motor (3); A large gear meshes with the small gear; the fixed shaft (4) and the cam (2) are fixed on the axis of the large gear.

10. The shielding device of the eye detection device according to claim 9, characterized in that: The base (102) of the baffle driving mechanism is a frame structure with two planes; the cam (2), the first travel switch (21) and the second travel switch (22) are arranged at the bottom of the second plane; the motor (3) and the fixed shaft (4) are arranged at the top of the first plane; and the large gear and the small gear are arranged between the two planes.

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