Multifunctional vision detector

Abstract

The utility model provides a multifunctional vision detector which comprises a sighting mark screen used for displaying sighting marks for vision detection; the sighting mark observation window comprises a first optical lens group and a second optical lens group, the first optical lens group is a plane lens and is fixed on the multifunctional vision detector, and the second optical lens group is a convex lens and is connected with the first optical lens group in an overturning manner by surrounding a rotating shaft on the first optical lens group; and the motor is used for driving the second optical lens group to overturn around the first optical lens group. According to the multifunctional vision detector, the near vision detection function and the far vision detection function are integrated in the same equipment, the two detection functions are convenient to switch, manual operation is not needed, and vision detection results can be automatically obtained.

Description

Technical Field

[0001] The utility model relates to the field of medical testing equipment, in particular to the technical field of vision testing, and more particularly to a multifunctional vision tester. Background Art

[0002] Vision testers are common medical devices used to assess people's vision and determine their eye health. The sight mark screen in the vision tester is used to present vision images. Specifically, through the cooperation of electronic hardware with the sight mark screen and the sight mark observation window, the different vision levels of the person to be tested can be observed, and the vision tester can automatically record and store the test results, so that doctors and ophthalmologists can more conveniently analyze and track the patient's vision status.

[0003] However, with the increasing maturity of commercialization, many vision testing institutions are under increasing pressure to occupy a large area. That is, due to rent or the necessary purchase of a variety of new vision testing equipment, users have increasingly smaller requirements for the size of vision testers. Users hope that the vision tester can achieve the expected testing function while having a small enough volume. Utility Model Content

[0004] The multifunctional vision tester provided by the utility model integrates two detection functions of near vision detection and far vision detection in the same device, and the two detection functions are easy to switch, and the vision detection results can be automatically obtained without the help of others.

[0005] In order to achieve the above objectives, the utility model discloses a multifunctional vision tester, comprising:

[0006] An optotype screen, used to display optotypes for testing vision;

[0007] The sight mark observation window comprises a first optical lens group and a second optical lens group, wherein the first optical lens group is a flat lens and is fixed to the multifunctional vision tester, and the second optical lens group is a convex lens and is connected to the first optical lens group by flipping around a rotation axis on the first optical lens group;

[0008] The motor is used to drive the second optical lens group to flip around the first optical lens group.

[0009] In some embodiments of the present application, the number of lenses in the first optical lens group and the number of lenses in the second optical lens group are both 2.

[0010] In some embodiments of the present application, the multifunctional vision tester further includes:

[0011] The shading window fixing plate is arranged on the visual light path between the sight mark screen and the observation sight mark window, and is used to control the independent display of the left and right eye windows of the person to be detected.

[0012] In some embodiments of the present application, the multifunctional vision tester further includes:

[0013] The front baffle of the fixed box is arranged on the visual light path between the shading window fixing plate and the observation sight mark window, and is used for shielding the stray light outside the sight mark screen.

[0014] In some embodiments of the present application, the multifunctional vision tester further includes:

[0015] The partition in the fixed box is arranged on the visual light path between the front baffle of the fixed box and the observation sight mark window, and is used to isolate the left and right eye windows of the person whose vision is to be tested.

[0016] In some embodiments of the present application, the multifunctional vision tester further includes:

[0017] The rear baffle of the fixed box is arranged on the visual light path between the partition in the fixed box and the observation sight mark window, and is used for further shielding the stray light outside the sight mark screen.

[0018] In some embodiments of the present application, the multifunctional vision tester is used to detect the near vision of a person to be tested when the plane formed by the first optical lens group is perpendicular to the plane formed by the second optical lens group.

[0019] In some embodiments of the present application, when the plane formed by the first optical lens group is parallel to the plane formed by the second optical lens group, the multifunctional vision tester is used to detect the distance vision of the person to be tested.

[0020] In some embodiments of the present application, the rotating shaft includes:

[0021] An axis groove, arranged at one end of the first optical lens group;

[0022] The shaft body is arranged at one end of the second optical lens group and is embedded and connected with the shaft groove.

[0023] In some embodiments of the present application, the motor is a digital servo, and the multifunctional vision tester further includes:

[0024] The cross joystick is used to subjectively identify the opening direction of the sight mark, and the vision test results are automatically obtained through the software algorithm.

[0025] The multifunctional vision tester provided by the utility model comprises: a sight mark screen for displaying sight marks for testing vision; an observation sight mark window, comprising a first optical lens group and a second optical lens group, wherein the first optical lens group is a flat lens and is fixed to the multifunctional vision tester, and the second optical lens group is a convex lens and is connected to the first optical lens group by being flipped around a rotating axis on the first optical lens group; and a motor for driving the second optical lens group to flip around the first optical lens group.

[0026] The multifunctional vision tester provided by the utility model integrates two detection functions of near vision detection and far vision detection in the same device, and the two detection functions are easy to switch, and the vision detection results can be automatically obtained without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram showing the structure of a multifunctional vision tester provided by an embodiment of the utility model is shown;

[0029] Figure 2 A schematic diagram showing the structure of the sight mark observation window provided by an embodiment of the utility model (the plane formed by the first optical lens group 3 is perpendicular to the plane formed by the second optical lens group 4);

[0030] Figure 3 A schematic diagram showing a sight mark provided by an embodiment of the utility model;

[0031] Figure 4 A schematic diagram showing another sight mark provided by an embodiment of the utility model;

[0032] Figure 5 A schematic diagram showing the structure of the sight mark observation window provided by an embodiment of the utility model (the plane formed by the first optical lens group 3 is parallel to the plane formed by the second optical lens group 4);

[0033] Figure 6 A schematic structural diagram of a rotating shaft provided in an embodiment of the utility model is shown.

[0034] Figure Number:

[0035] 1: sight mark screen;

[0036] 2: Observe the sight mark window;

[0037] 3: first optical lens group;

[0038] 4: Second optical lens group;

[0039] 5: Rotation axis;

[0040] 5-1: shaft groove;

[0041] 5-2: Rotating shaft body;

[0042] 5-3: notch;

[0043] 6: Motor;

[0044] 7: Shield;

[0045] 8: Shading window fixing plate;

[0046] 9: Fix the front baffle of the box;

[0047] 10: Fix the partition in the box;

[0048] 11: Fix the rear baffle of the box;

[0049] 12: Cross joystick;

[0050] 13: Industrial computer. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] The present utility model embodiment provides a multifunctional vision tester. Figure 1 as well as Figure 2 As shown, in this embodiment, the multifunctional vision tester includes:

[0053] Optometry screen 1, used for displaying the optometry for testing vision;

[0054] The sight mark observation window 2 includes a first optical lens group 3 and a second optical lens group 4, wherein the first optical lens group 3 is a flat lens and is fixed to the multifunctional vision tester, and the second optical lens group 4 is a convex lens and is connected to the first optical lens group 3 by flipping around a rotation axis 5 on the first optical lens group 3;

[0055] The motor 6 is used for driving the second optical lens group 4 to flip around the first optical lens group.

[0056] The multifunctional vision tester provided by the utility model comprises: a sight mark screen for displaying sight marks for testing vision; an observation sight mark window, comprising a first optical lens group and a second optical lens group, wherein the first optical lens group is a flat lens and is fixed to the multifunctional vision tester, and the second optical lens group is a convex lens and is connected to the first optical lens group by being flipped around a rotating axis on the first optical lens group; and a motor for driving the second optical lens group to flip around the first optical lens group.

[0057] The multifunctional vision tester provided by the utility model integrates two detection functions of near vision detection and far vision detection in the same device, and the two detection functions are easy to switch, and the vision detection results can be automatically obtained without manual operation.

[0058] Continue to see Figure 3 as well as Figure 4 , the sight mark on the sight mark screen 1 can be Figure 3 The icon "E" commonly used in the market can also be used as a child icon, but the present application is not limited thereto. Preferably, the sight mark screen 1 uses a high-resolution liquid crystal display or LED display to display the vision test chart and test results. The vision tester screen usually has a brightness adjustment function to ensure that it can be clearly seen under different ambient lighting conditions. The size and distance of the icon can also be adjusted as needed to adapt to different test requirements and vision conditions.

[0059] See also Figure 5 The observation sight mark window 2 includes a protective cover 7 for protecting the first optical lens group 3 and the second optical lens group 4.

[0060] In some embodiments of the present application, see Figure 2 as well as Figure 4 The number of lenses in the first optical lens group and the number of lenses in the second optical lens group are both 2.

[0061] In some embodiments of the present application, see Figure 1 , a multifunctional vision tester, further comprising:

[0062] The shading window fixing plate 8 is arranged on the visual light path between the sight mark screen 1 and the observation sight mark window 2, and is used to control the independent display of the left and right eye windows of the person to be detected.

[0063] In some embodiments of the present application, see Figure 1 , a multifunctional vision tester, further comprising:

[0064] The fixed box front baffle 9 is arranged on the visual light path between the shading window fixing plate 8 and the observation sight mark window 2, and is used to block the stray light outside the sight mark screen 1.

[0065] In some embodiments of the present application, see Figure 1 , a multifunctional vision tester, further comprising:

[0066] The partition plate 10 in the fixed box is arranged on the visual light path between the front baffle plate 9 of the fixed box and the observation sight mark window 2, and is used to isolate the left and right eye windows of the person whose vision is to be tested.

[0067] In some embodiments of the present application, see Figure 1 , a multifunctional vision tester, further comprising:

[0068] The rear baffle 11 of the fixed box is arranged on the visual light path between the partition 10 in the fixed box and the observation sight mark window 2, and is used to further block the stray light outside the sight mark screen 1.

[0069] It is understandable that the shading window fixing plate 8, the fixing box front baffle 9, the fixing box middle partition 10 and the fixing box rear baffle 11 are all provided with holes for passing light, and the shape of the holes on each plate can be set as needed.

[0070] In some embodiments of the present application, the shading window fixing plate 8, the fixing box front baffle 9, the fixing box middle partition 10 and the fixing box rear baffle 11 are all made of environmentally friendly materials, such as biodegradable plastics, plant-based plastics, recycled materials and bio-based composite materials, specifically:

[0071] Biodegradable plastics: Biodegradable plastics are plastics made from renewable materials that can be decomposed into harmless substances through the process of biodegradation. Common biodegradable plastic materials include starch, polylactic acid (PLA), polyhydroxyalkanoates (PHB), etc.

[0072] Plant-based plastics: Plant-based plastics are plastics made from plant materials, which can reduce dependence on fossil fuels. Common plant-based plastic materials include corn starch, sucrose, wood fiber, etc.

[0073] Recycled materials: Environmentally friendly plastic sheets can also be made from recycled materials, such as recycled plastic bottles, waste plastic products, etc. These materials can be recycled and processed through recycling processes, reducing the demand for new raw materials.

[0074] Bio-based composites: Bio-based composites are plastic boards made by combining bio-based materials with other reinforcing materials or filling materials. Common bio-based composites include wood plastic composites (WPC) and bamboo plastic composites (BPC).

[0075] In some embodiments of the present application, see Figure 2 When the plane formed by the first optical lens group 3 is perpendicular to the plane formed by the second optical lens group 4, the multifunctional vision tester is used to test the near vision of the person to be tested.

[0076] In some embodiments of the present application, see Figure 5 When the plane formed by the first optical lens group 3 is parallel to the plane formed by the second optical lens group 4, the multifunctional vision tester is used to test the far vision of the person to be tested.

[0077] Specifically, the visual clarity of the sight mark seen in the sight mark window 2 is observed by the cooperation of two layers of optical lens groups to achieve the inspection and judgment effect. The first layer of optical lens group 3 (plano lens) is a fixed structure fixed at the front end of the sight window. The second layer of optical lens group 4 (convex lens) is a flip adjustment structure (which can be adjusted by adjusting the gear knob). The use scenario is: when the second layer of optical lens group 4 is adjusted to a vertical state with the first layer of optical lens group 3 and does not block the sight window of the first layer of optical lens group 3, the observation state at this time is a single observation of the sight mark of the sight mark window with the first layer of optical lens group 3; when the second layer of optical lens group 4 is adjusted to a parallel and concentric position with the first layer of optical lens group 3, the observation state at this time is the observation of the sight mark of the sight mark window in the overlapping state of the first layer of optical lens group 3 and the second layer of optical lens group 4. In this design, the second layer of optical lens group 4 is fixed on a lens bracket through a rotating shaft 5, one end of which is fixed with the rotating shaft 4, and the other end is equipped with a digital servo to control the initial zero position and the rotation 90° position in two positioning states, and the conversion is realized by the motor rotation operation. During the actual test, the user only needs to approach the machine normally, and the electronic control program will automatically complete the test and prompt the completion. This multifunctional vision tester can complete all tests automatically without human assistance, adjustment and conversion.

[0078] In some embodiments of the present application, see Figure 6 , the rotating shaft 5 comprises:

[0079] Axial groove 5-1, arranged at one end of the first optical lens group 3;

[0080] The shaft body 5 - 2 is arranged at one end of the second optical lens group 4 and is embedded and connected with the shaft groove 5 - 1 through the notch 5 - 3 and enters into the shaft groove 5 - 1 .

[0081] Preferably, the shaft groove 5-1 and the shaft body 5-2 are made of elastic materials, for example:

[0082] TPU (thermoplastic polyurethane), a plastic material with excellent elasticity and wear resistance, its elasticity can remain stable over a wide temperature range. It is often used to make soles, sports equipment, mobile phone cases, etc.

[0083] TPE (thermoplastic elastomer), a type of plastic material with elasticity and plasticity, can be formed by injection molding or extrusion at a relatively low temperature. TPE is widely used in automotive parts, furniture, toys and other fields.

[0084] PVC (polyvinyl chloride), a common plastic material, has good flexibility and elasticity. It is widely used in making pipes, wire and cable insulation, inflatable products, etc.

[0085] EVA (ethylene vinyl acetate copolymer), EVA is a plastic material with good elasticity and softness, and is often used to make insoles, sports equipment, swimming floats, etc.

[0086] LSR (Liquid Silicone Rubber), LSR is a plastic material made of liquid silicone rubber, which has excellent elasticity, high temperature resistance and chemical resistance. It is widely used in medical devices, baby products, seals, etc.

[0087] More preferably, the shaft groove 5-1 is formed integrally with the first optical lens group 3, and the shaft body 5-2 is formed integrally with the second optical lens group 4, so as to increase the convenience of manufacturing the multifunctional vision tester.

[0088] In some embodiments of the present application, see Figure 1 , the multifunctional vision tester also includes:

[0089] The cross joystick 12 is used to subjectively identify the opening direction of the sight mark, and the visual acuity test result is automatically obtained through the software algorithm.

[0090] The multifunctional vision tester provided by the utility model comprises: a sight mark screen for displaying sight marks for testing vision; an observation sight mark window, comprising a first optical lens group and a second optical lens group, wherein the first optical lens group is a flat lens and is fixed to the multifunctional vision tester, and the second optical lens group is a convex lens and is connected to the first optical lens group by being flipped around a rotating axis on the first optical lens group; and a motor for driving the second optical lens group to flip around the first optical lens group.

[0091] The multifunctional vision tester provided by the utility model integrates two detection functions of near vision detection and far vision detection in the same device, and the two detection functions are easy to switch, and the vision detection results can be automatically obtained without manual operation.

[0092] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiment of the device implementation method, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0093] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0094] Although the present specification embodiment provides the method operation steps such as the embodiment or flow chart, more or less operation steps may be included based on conventional or non-creative means. The order of steps listed in the embodiment is only one way in the numerous step execution orders and does not represent a unique execution order. The term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, product or equipment including a series of elements not only includes those elements, but also includes other elements not clearly listed, or also includes elements inherent to such process, method, product or equipment. In the absence of more restrictions, it is not excluded that there are other identical or equivalent elements in the process, method, product or equipment including the elements.

[0095] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. In the description of this specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of this specification. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of contradiction, a person skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0096] The above are only examples of the embodiments of the present specification and are not intended to limit the embodiments of the present specification. For those skilled in the art, the embodiments of the present specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification shall be included in the scope of the claims of the embodiments of the present specification.

Claims

1. A multifunctional vision tester, characterized in that: include: An optotype screen, used to display optotypes for testing vision; The sight mark observation window comprises a first optical lens group and a second optical lens group, wherein the first optical lens group is a flat lens and is fixed to the multifunctional vision tester, and the second optical lens group is a convex lens and is connected to the first optical lens group by flipping around a rotation axis on the first optical lens group; The motor is used to drive the second optical lens group to flip around the first optical lens group.

2. The multifunctional vision tester according to claim 1, characterized in that: The number of lenses in the first optical lens group and the number of lenses in the second optical lens group are both 2.

3. The multifunctional vision tester according to claim 1, characterized in that: Also includes: The shading window fixing plate is arranged on the visual light path between the sight mark screen and the observation sight mark window, and is used to control the independent display of the left and right eye windows of the person to be detected.

4. The multifunctional vision tester according to claim 3, characterized in that: Also includes: The front baffle of the fixed box is arranged on the visual light path between the shading window fixing plate and the observation sight mark window, and is used for shielding the stray light outside the sight mark screen.

5. The multifunctional vision tester according to claim 4, characterized in that: Also includes: The partition in the fixed box is arranged on the visual light path between the front baffle of the fixed box and the observation sight mark window, and is used to isolate the left and right eye windows of the person whose vision is to be tested.

6. The multifunctional vision tester according to claim 5, characterized in that: Also includes: The rear baffle of the fixed box is arranged on the visual light path between the partition in the fixed box and the observation sight mark window, and is used for further shielding the stray light outside the sight mark screen.

7. The multifunctional vision tester according to claim 1, characterized in that: When the plane formed by the first optical lens group is perpendicular to the plane formed by the second optical lens group, the multifunctional vision tester is used to test the near vision of the person to be tested.

8. The multifunctional vision tester according to claim 1, characterized in that: When the plane formed by the first optical lens group is parallel to the plane formed by the second optical lens group, the multifunctional vision tester is used to test the distance vision of the person whose vision is to be tested.

9. The multifunctional vision tester according to any one of claims 1 to 8, characterized in that: The rotating shaft comprises: An axis groove, arranged at one end of the first optical lens group; The shaft body is arranged at one end of the second optical lens group and is embedded and connected with the shaft groove.

10. The multifunctional vision tester according to claim 1, characterized in that: The motor is a digital steering gear, and the multifunctional vision tester also includes: The cross joystick is used to subjectively identify the opening direction of the sight mark, and the vision test results are automatically obtained through the software algorithm.

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