Head-mounted eyeball protrusion measuring device

Abstract

The utility model discloses a head-mounted eyeball protrusion measuring device which comprises a support, a telescopic belt connected to the support and an eyeshade fixed on the support, and is characterized in that two sets of protrusion measuring assemblies are symmetrically arranged on the support; each group of protrusion measuring assembly comprises an identification rod used for positioning the frame edge of the outer side of the human eye, a camera and a slit lamp, the slit lamp is used for positioning the vertex of the cornea, and the camera is used for measuring the distance between the vertex of the cornea and the camera. The beneficial effects of the utility model are that: 1, the eyeball protrusion is measured in a head-mounted manner, which is convenient and fast; and 2, the whole device is compact in structure, high in integration level and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of human eye ball protrusion degree detection, specifically relates to a head-mounted eye ball protrusion degree measuring device. BACKGROUND

[0002] Eye ball protrusion refers to eye ball protrusion caused by the increase of the content in the orbit. Eye ball protrusion degree refers to the vertical distance from the temporal orbital rim bone to the corneal vertex.

[0003] At present, the mainstream method for measuring eye ball protrusion degree is Hertel eye ball protrusion gauge measurement method. Hertel eye ball protrusion gauge is used to project the corneal vertex and the scale ruler to the front of the prism through the inclined surface reflection at the same time by the optical glass prism of isosceles right triangle, and the height of eye ball protrusion from the outer frame rim can be obtained by observing the human eye in the front.

[0004] The above protrusion measurement method has the technical problems of complex operation and troublesome reading. CN104799809A discloses a method for measuring human eye ball protrusion degree by using ophthalmic device and ophthalmic device. The measurement of eye ball protrusion is realized by using the existing ophthalmic equipment. However, the above still has the technical problems of high equipment cost and complex operation. SUMMARY

[0005] The utility model wants to solve the technical problem to provide a head-mounted eye ball protrusion degree measuring device, adopts the way of wearing on the head, realizes the measurement of eye ball protrusion degree through the slit lamp and camera and other components in the device, and the device structure is compact, low in cost and simple to operate.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is: a head-mounted eye ball protrusion degree measuring device, comprising a support, a telescopic belt connected to the support and an eyeshade fixed to the support, the key lies in: two groups of protrusion degree measuring components are symmetrically arranged on the support, each group of protrusion degree measuring components comprises an identification rod for positioning the lateral frame rim of the human eye, a camera and a slit lamp, the slit lamp is used for positioning the corneal vertex, and the camera is used for measuring the distance between the corneal vertex and the camera.

[0007] Further, the protrusion degree measuring component further comprises a corneal vertex positioning assembly for driving the camera and the slit lamp to move, and the corneal vertex positioning assembly comprises a linear drive assembly fixed to the support and driving the camera and the slit lamp to move along the left-right direction of the support.

[0008] Further, the camera and the slit lamp are fixed on a mounting plate, and two L-shaped guide portions for limiting and moving left and right guiding of the mounting plate are symmetrically arranged on the support.

[0009] Further, the straight line driving assembly is an electric push rod.

[0010] Further, an adjusting seat is arranged on the bracket, and the identification rod is threadedly connected with the adjusting seat.

[0011] Further, a sliding groove is arranged on the bracket and used for sliding of the adjusting seat, and a limiting part in the adjusting seat passes through the sliding groove and is threadedly connected with a locking nut.

[0012] Further, acrylic plates are arranged on two sides of the eyecup, long grooves matched with the sliding grooves are arranged on the acrylic plates, and scale marks are arranged on one side or both sides of the long grooves.

[0013] Further, a groove is arranged on the bottom of the eyecup and used for positioning of the eyecup on a nose bridge.

[0014] Further, a display screen is arranged on the eyecup.

[0015] The head-mounted eye protrusion measuring device has the advantages that: 1. The head-mounted device is used to measure the eye protrusion, which is convenient and fast; 2. The camera and the slit lamp are reciprocally moved to find the corneal vertex, the distance between the camera and the corneal vertex is calculated, and then the eye protrusion is calculated by using the identification rod, so that the calculation is simple; 3. The identification rod can be transversely and longitudinally adjusted by the adjusting seat and the matched nut, and the inner end of the identification rod can be positioned at the outer frame edge of the eye; and 4. The device has compact structure, high integration degree and low cost.

[0016] The head-mounted eye protrusion measuring device will be described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the head-mounted eye protrusion measuring device of the head-mounted eye protrusion measuring device;

[0018] Figure 2 is another structural schematic view of the head-mounted eye protrusion measuring device of the head-mounted eye protrusion measuring device;

[0019] Figure 3 is a structural schematic view of the head-mounted eye protrusion measuring device of the head-mounted eye protrusion measuring device after the telescopic belt and the eyecup are removed;

[0020] Figure 4 is a schematic view of the head-mounted eye protrusion measuring device of the head-mounted eye protrusion measuring device in use.

[0021] In the drawings, 1, support, 1-1, sliding groove, 2, telescopic belt, 3, eyecup, 3-1, groove, 4, identification rod, 5, camera, 6, slit lamp, 7, linear drive assembly, 8, mounting plate, 9, L-shaped guide, 10, adjusting seat, 11, locking nut, 12, acrylic plate, 12-1, long slot, 12-2, scale mark, 13, display screen. DETAILED DESCRIPTION

[0022] Referring to the drawings Figures 1-3 The utility model provides a kind of head-mounted eyeball protrusion measuring device, including support 1, telescopic belt 2 being connected on support 1 and eyecup 3 being fixed on the support 1 of telescopic belt 2.For the convenience of wearing eyecup 3, the bottom of eyecup 3 is equipped with groove 3-1 for positioning eyecup 3 on the bridge of nose.In eyecup 3, display screen 13 is equipped, the movement of camera 5 and slit lamp 6 can be shown in real time, and the distance detected by camera is calculated in real time to judge whether the light emitted by slit lamp 6 is on corneal vertex.In addition, battery, control circuit and other components are also provided on eyecup 3 to power linear drive assembly 7, display screen 13 and other components.

[0023] Referring to the drawings Figure 3 Two groups of protrusion measuring assemblies are symmetrically provided on support 1, and each group of protrusion measuring assemblies includes identification rod 4 for positioning lateral frame of human eye, camera 5 and slit lamp 6, slit lamp 6 is used for positioning corneal vertex, and camera 5 is used for measuring the distance between corneal vertex and camera 5.The inner end of identification rod 4 is rounded.

[0024] The above is to make the light emitted by slit lamp 6 on the vertex of cornea, and the protrusion measuring assembly further includes eye corneal vertex positioning assembly for driving camera 5 and slit lamp 6 to move.Linear drive assembly 7 is included in eye corneal vertex positioning assembly, which is fixed on support 1 and drives camera 5 and slit lamp 6 to move along the left-right direction of support 1.Camera 5 and slit lamp 6 are fixed on mounting plate 8, and two L-shaped guide parts 9 are symmetrically provided on support 1 to limit and guide the left-right movement of mounting plate 8.Among them, camera 5 is vertically fixed on mounting plate 8, and slit lamp 6 is horizontally arranged with camera 5 and inclined to camera 5, which facilitates camera 5 to focus on the light irradiated on cornea to calculate the distance between camera 5 and corneal vertex.Linear drive assembly 7 is preferably electric push rod.

[0025] The positioning and data collection of the outer frame edge of the human eye of subjects with different head sizes can be achieved by the axial movement of the identification rod 4 along the adjustment seat 10 and the longitudinal movement along the slide 1-1. The bracket 1 is provided with an adjustment seat 10, and the identification rod 4 is threadedly connected to the adjustment seat 10 to facilitate axial position adjustment, so as to adjust the distance so that the end of the identification rod 4 contacts the outer frame edge of the human eye. The bracket 1 is provided with a slide 1-1 for the adjustment seat 10 to slide. The limiting part in the adjustment seat 10 passes through the slide 1-1 and is threadedly connected to the fixing nut 11 to fix the position of the adjustment seat 10. By moving the adjustment seat 10 within a small range along the slide 1-1, the end of the identification rod 4 can be quickly positioned outside the frame edge, and the position of the adjustment seat 10 can be locked by the fixing nut 11.

[0026] Transparent acrylic panels 12 are installed on both sides of the eye mask 3. These panels are provided with a long groove 12-1 that mates with the slide 1-1. Scale markings 12-2 are located on one or both sides of the groove 12-1. One end of the marking rod 4 is located inside the bracket 1, while the other end is located outside the bracket 1 to mate with the scale markings 12-2 for easy distance checking.

[0027] See attached Figure 4 When using the device of the present invention: 1. Wear the device on the head and adjust it to a suitable position. At this time, the camera 5 and the slit lamp 6 are basically in front of the subject's eyeball; 2. Move and adjust the identification rod 4 so that its inner end is positioned at the position of the outer frame edge of the human eye. At this time, the distance X1 between the identification rod 4 and the reference surface inside the bracket 1 is obtained through the scale mark 12-2 on the acrylic plate 12; 3. The device is controlled by a remote control or mobile phone app that is matched with the device. The linear drive component 7 is controlled to move the mounting plate 8. During the movement, the image collected by the camera 5 is used to calculate in real time the distance between the camera 5 and the light irradiated by the slit lamp 6 and the corneal vertex. When the distance is the shortest, the distance between the camera 5 and the corneal vertex is X2; 4. Calculate the degree of eyeball protrusion; 5. Control each component to reset and remove the device.

[0028] The calculation formula for eyeball protrusion X is as follows:

[0029] X=X1-X2-X3,

[0030] Among them, X1 is the distance between the marking rod 4 and the reference plane of the bracket 1,

[0031] X2 is the distance between camera 5 and the corneal vertex,

[0032] X3 is the distance between the camera 5 and the reference plane of the bracket 1.

[0033] It should be noted that the above examples are used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical solutions of the present application, all of them should be covered in the technical solution range of the present application claimed.

Claims

1. A head-mounted eyeball exophthalmos measurement device, comprising a bracket (1), a retractable belt (2) connected to the bracket (1), and an eye mask (3) fixed to the bracket (1), characterized in that: Two sets of protrusion measurement components are symmetrically arranged on the bracket (1), each set of protrusion measurement components includes a marking rod (4) for locating the outer edge of the human eye, a camera (5) and a slit lamp (6), the slit lamp (6) is used to locate the apex of the cornea, and the camera (5) is used to measure the distance between the apex of the cornea and the camera (5).

2. The head-mounted eyeball exophthalmos measurement device according to claim 1, characterized in that: The protrusion measurement component further includes a corneal vertex positioning component for driving the camera (5) and the slit lamp (6) to move, and the corneal vertex positioning component includes a linear drive component (7) fixed on the bracket (1) and driving the camera (5) and the slit lamp (6) to move in the left and right directions of the bracket (1).

3. The head-mounted eyeball exophthalmos measurement device according to claim 2, characterized in that: The camera (5) and the slit lamp (6) are fixed on a mounting plate (8), and two L-shaped guide portions (9) for limiting the position of the mounting plate (8) and guiding the left and right movement are symmetrically provided on the bracket (1).

4. The head-mounted eyeball exophthalmos measurement device according to claim 2, characterized in that: The linear drive component (7) is an electric push rod.

5. The head-mounted exophthalmos measurement device according to claim 1, characterized in that: An adjustment seat (10) is provided on the bracket (1), and the identification rod (4) is threadedly connected to the adjustment seat (10).

6. The head-mounted exophthalmos measurement device according to claim 5, characterized in that: A sliding groove (1-1) for the adjustment seat (10) to slide is provided on the bracket (1), and a limiting portion in the adjustment seat (10) passes through the sliding groove (1-1) and is threadedly connected to a fixing nut (11).

7. The head-mounted exophthalmos measurement device according to claim 6, characterized in that: Acrylic plates (12) are provided on both sides of the eye mask (3), a long groove (12-1) matching the slide groove (1-1) is provided on the acrylic plate (12), and scale marks (12-2) are provided on one or both sides of the long groove (12-1).

8. The head-mounted eyeball exophthalmos measurement device according to any one of claims 1 to 7, characterized in that: A groove (3-1) for positioning the eye mask (3) on the bridge of the nose is provided at the bottom of the eye mask (3).

9. The head-mounted exophthalmos measurement device according to claim 8, characterized in that: A display screen (13) is provided on the eye mask (3).

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