Vision Testing Unit

Abstract

The utility model relates to a vision detection unit, comprising: a carrier, on which at least one sight mark under a vision level is arranged. The vision detection unit provided by the utility model is an independent character (one sight mark) or a character group (two or more sight marks), which has a vision level. Compared with a whole vision chart, the vision detection unit has the advantages of small size, small occupied area, and no influence on the beauty of the house. The user does not need to set up a whole vision chart at home to perform vision detection, but only needs to select the corresponding vision detection unit according to his own vision standard for setting.

Description

Technical Field

[0001] The utility model relates to the technical field of vision detection, in particular to a vision detection unit. Background Art

[0002] The eye chart is a chart used to measure visual acuity. It is developed based on the principle of visual angle and is functionally divided into a near vision chart with a test distance of 30 cm and a far vision chart with a test distance of 2.5 meters or 5 meters. The test sight marks are diverse. For example, the distance vision charts commonly used in China include the international standard E-symbol eye chart, the C-symbol Landmark circle eye chart, etc., while the animal pattern Lea Symbols eye chart and HOTV eye chart are used for young children.

[0003] Take the 5-meter distance logarithmic vision chart, which is the most commonly used in the domestic market, as an example. It consists of 14 lines of "E" letters of different sizes and opening directions, and the measured vision level ranges from 0.1 to 2.0 (or from 4.0 to 5.3). In the past, the E-shaped vision chart needs to be used according to specific scenarios and test requirements, and must be printed according to standardized specifications. For example, according to the GB 11533-2011 national vision chart standard issued by China in 2011, it is recommended to use 5-fold (777mm×217mm) of 787mm×1092mm paper, which is equivalent to the length of 3 A4 papers spliced ​​vertically. Such a size is large and not suitable for daily home use. If the vision chart is posted on the wall at home, there are problems such as large area occupied and affecting the appearance of the house. Furthermore, from the perspective of promoting eye health care, it is not easy to carry it with you, and it is difficult to realize the needs of users who just want to self-test anytime and anywhere in life scenarios. Even if existing mobile phones or tablets can install vision test applications, considering people's daily habits, most people rarely install them on electronic products. There are problems with the frequency of use and the difficulty in integrating them into daily life. It is also difficult to promote eye health care for adults or young people. In addition, there are many brands and models of mobile electronic products, and the screen size, length and width specifications, brightness and color difference settings are different. Even if the software program has the function of calibrating standard images, it is difficult to perfectly meet the most basic visual standardization requirements, especially when testing near vision or far vision with smaller limit visual standards.

[0004] Furthermore, for the scenario of self-testing vision, the traditional E-logarithmic visual acuity chart commonly used in China currently has 14 test lines with visual acuity values ​​ranging from 0.1 to 2.0. Here is an example of a scenario where a healthy person with a normal visual acuity value of 1.0 to 1.2 wants to achieve a simple self-test of vision at home, and only wants to understand the current degree of visual fatigue, whether there are fluctuations in the four lines of visual acuity marks of 0.6 (9th line), 0.8 (10th line), 1.0 (11th line), and 1.2 (12th line). In most normal cases, there is no need to use the other 8 lines of visual acuity marks from 0.1 (1st line) to 0.5 (8th line). In addition, when testing one's best vision, it is necessary to see a relatively small visual acuity mark clearly. At this time, someone is often needed to assist in the measurement to confirm which line of visual acuity value is seen, or to check the number of visible lines and visual acuity by one's own memory. From the above, it can be seen that in the use scenario of the visual acuity chart in specific scenarios, the visual acuity chart is worth needing. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a vision detection unit to solve the problem that the existing vision chart is not suitable for home use due to its large size, that when the vision chart is posted at home, it occupies a large area and affects the appearance of the house, and that the measurement requires the assistance of others.

[0006] The technical solution to achieve the above purpose is:

[0007] The utility model provides a vision detection unit, comprising:

[0008] A carrier is provided with at least one sight mark under a vision level.

[0009] The vision detection unit provided by the present invention is an independent character (one sight mark) or a character group (two or more sight marks), which has a vision level that is less than the number of standard vision mark groups. Compared with a whole vision chart, the vision detection unit has the advantages of small size, small footprint, and will not affect the aesthetics of the house. Users do not need to set up a whole vision chart at home to perform vision testing. They only need to select the corresponding vision detection unit according to their own vision change range for setting. When it is necessary to test vision, just look at the sight mark in the vision detection unit from a position that meets the test distance. If you can see clearly, it means that your vision is normal and has not decreased. If you find that you can't see clearly, it means that your vision has decreased and your eyes need to rest, or you can seek further consultation from professional ophthalmology-related institutions. The vision detection unit of the present invention can well solve the problem that the existing vision chart is not suitable for home use due to its large size and the problem of simple self-testing. On the other hand, this vision detection solution can also be used for

[0010] A further improvement of the vision detection unit of the utility model is that it also includes a connecting piece connected to the carrier and used to fix the carrier.

[0011] A further improvement of the vision detection unit of the utility model lies in that the connecting piece is an adhesive layer arranged on the back side of the carrier.

[0012] A further improvement of the vision detection unit of the utility model is that the connecting piece is a Velcro provided on the back side of the carrier.

[0013] A further improvement of the vision detection unit of the utility model lies in that the connecting piece is a magnetic sticker arranged on the back side of the carrier.

[0014] A further improvement of the vision detection unit of the utility model lies in that the connecting member is a hanging rope, a hanging chain or a hanging ring connected to the carrier.

[0015] A further improvement of the vision detection unit of the utility model is that an identifier is also provided on the carrier, and the identifier is arranged close to the sight mark.

[0016] A further improvement of the vision detection unit of the utility model is that the carrier is further provided with an upper sight mark located above the sight mark and a lower sight mark located below the sight mark;

[0017] The visual acuity level corresponding to the upper sight mark is the visual acuity level above the visual acuity level corresponding to the set sight mark;

[0018] The vision level corresponding to the lower sight mark is the next vision level of the vision level corresponding to the set sight mark.

[0019] A further improvement of the vision detection unit of the utility model is that the number of the sight marks is two or more, and the directions of the sight marks are different.

[0020] A further improvement of the vision detection unit of the utility model is that the standard sight mark for vision test is generally any one of E-shape, C-shape, other letters, numbers and graphics. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the first embodiment of the vision detection unit of the utility model.

[0022] Figure 2 It is a cross-sectional view of the vision detection unit of the utility model.

[0023] Figure 3 It is a front view of the second embodiment of the vision detection unit of the utility model.

[0024] Figure 4It is a front view of the third embodiment of the vision detection unit of the utility model.

[0025] Figure 5 It is a front view of the fourth embodiment of the vision detection unit of the utility model.

[0026] Figure 6 It is a front view of the fifth embodiment of the vision detection unit of the utility model.

[0027] Figure 7 It is a front view of the sixth embodiment of the vision detection unit of the utility model.

[0028] Figure 8 It is a front view of the seventh embodiment of the vision detection unit of the utility model. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figure 1 The present utility model provides a vision detection unit, which is used to solve the problems that the existing vision chart is large in size, not suitable for home use, occupies a large area, and affects the aesthetics of the house. The vision detection unit of the present utility model is an independent character or character group, on which is arranged one or more sight marks, and the sight marks arranged are of the same vision level or other vision levels can exist at the same time, so that the user can self-assess his vision without the need for the assistance of others in the measurement. The user can know whether his vision has changed through his own observation. The vision detection unit of the present utility model is simple and easy to use, and can allow the user to self-test his vision in any occasion. The vision detection unit of the present utility model is described below in conjunction with the accompanying drawings.

[0031] See also Figure 1 , showing a front view of the first embodiment of the vision detection unit of the utility model. Figure 2 , showing a cross-sectional view of the vision detection unit of the utility model. Figure 1 and Figure 2 , the structure of the vision detection unit of the utility model is explained.

[0032] like Figure 1 and Figure 2 As shown, the vision detection unit of the present invention comprises a carrier 21 on which at least one sight mark 211 of a vision level is arranged.

[0033] The vision detection unit of the utility model is an independent character or character group, on which one sight mark, two sight marks, three sight marks, four sight marks, etc. can be set, and the sight marks set are the same vision level, and the vision level can be any vision level from 0.1 to 2.0 in the decimal record. The user can select the corresponding vision detection unit for vision detection according to his own vision standard. Or the user can select vision detection units of multiple vision levels for combination to meet the vision level required by the user.

[0034] In a preferred embodiment of the present invention, Figure 2 As shown, the vision detection unit of the present invention further includes a connecting member 22 connected to the carrier 21 and used to fix the carrier 21 .

[0035] By providing the connecting piece 22 , the user can conveniently fix the carrier 21 to a suitable position, such as a wall, a cabinet door surface, a refrigerator surface, a mirror surface or other objects or structures.

[0036] Furthermore, the connecting member 22 is disposed on the back side of the carrier 21 , the connecting member 22 is attached to the carrier 21 , and the size of the connecting member 22 is adapted to the size of the carrier 21 .

[0037] Furthermore, the connecting member 22 is bonded to the carrier 21. The connection and fixation between the connecting member 22 and the carrier 21 is achieved through the adhesive layer.

[0038] In a preferred embodiment, the connecting member 22 is an adhesive layer, which is equivalent to setting a back adhesive on the back of the carrier 21, and the carrier 21 can be pasted to a suitable position through the adhesive layer. In this embodiment, the vision detection unit of the utility model is a sticker, and a release paper is provided on the back of the connecting member 22. When in use, the release paper is removed to expose the connecting member 22 and can be pasted.

[0039] In another preferred embodiment, the connecting piece 22 is Velcro, which is also called a snap fastener, and can achieve a detachable connection. When in use, the soft fiber surface can be fixed in a suitable position. The fixation can be achieved by hooking or sticking, and then the elastic fiber with hooks and barbs can be adhered to the soft fiber surface.

[0040] In another preferred embodiment, the connecting member 22 is a magnetic sticker, which is preferably a metal magnet or a rubber soft magnet. In this embodiment, the vision detection unit of the utility model is a refrigerator magnet, which can be adsorbed on a metal surface by the provided magnetic sticker to achieve magnetic fixation.

[0041] In a preferred embodiment of the present invention, the connecting member is connected to the carrier 21, and the connecting member can be connected to the top, bottom or both sides of the carrier 21. The connecting member is preferably a hanging rope, hanging chain or hanging ring connected to the carrier 21, which can hang the carrier 21 in a suitable position.

[0042] In a preferred embodiment of the present invention, the carrier 21 is a paper sheet or a plastic sheet. The sight mark 211 on the carrier 21 can be made by printing, spraying, etc.

[0043] In a preferred embodiment of the present invention, Figure 1 and Figure 3 As shown, the carrier 21 is also provided with an identifier 212, and the identifier 212 is arranged close to the sight mark.

[0044] The identifier 212 is provided to facilitate the user to identify the position of the sight mark 211 for visual acuity testing.

[0045] In a specific implementation of the present invention, the number of sight marks 211 is two or more, and the directions of the sight marks 211 are different.

[0046] like Figure 4 As shown, in this embodiment, there are two sight marks 211, and the sight marks are in an E-shape, and the two E-shapes face in different directions. The two sight marks 211 are of the same size.

[0047] In a specific implementation of the present invention, the sight mark is any one of the E-shape, C-shape, other letters, numbers and graphics commonly used in standard vision tests.

[0048] like Figure 1 As shown, in this embodiment, the shape of the sight mark 211 is E-shaped.

[0049] like Figure 5 As shown, in this embodiment, the shape of the sight mark 211 is C-shaped.

[0050] like Figure 7 As shown, in this embodiment, the shape of the sight mark 211 is an apple.

[0051] In a specific implementation of the present invention, the identifier is any one of numbers, letters, graphics and patterns, or a combination of two or more.

[0052] The graphic may be a regular geometric shape or an irregular shape, specifically, a square, an ellipse, a star, a circle, a regular geometric shape or a special shape. The pattern may be any one of various cartoon patterns, animal patterns, and plant patterns. When the identifier is a number, the number may be the corresponding vision level, so as to conveniently remind the user of the vision level corresponding to the sight mark.

[0053] like Figure 1 As shown, in this embodiment, the identifier 212 is a square frame, and the color of the square frame is black. Preferably, the color of the identifier 211 can be set as needed, and can be blue, green, or other colors.

[0054] like Figure 3 As shown, in this embodiment, the identifier 212 is circular and is arranged at the upper left corner of the sight mark 211. The color of the identifier 212 can be set as required.

[0055] like Figure 5 As shown, in this embodiment, the identifier 212 is in the shape of a star, and the sight mark 211 is located inside the identifier 212. The color of the identifier can be set as needed.

[0056] like Figure 6 As shown, in this embodiment, the identifier 212 is in the shape of a branch with leaves and is disposed at the lower part of the sight mark 211. The color of the identifier can be set as required.

[0057] Preferably, the identifier 212 can be a frame, or an open half frame, which is arranged on the periphery of the sight mark to highlight the sight mark. If the user has very good vision, which is 1.2, then the sight mark is actually very small. If it is a single character, it may not be found by the user and may even be forgotten where it is if it is posted on a corner, pillar or ceiling at home. Therefore, by adjusting the size, shape or color of the identifier and the carrier, it can be presented in a beautiful, cute or conspicuous way to match the environment, and can guide the user to find the test area or quickly find the vision value to be tested.

[0058] In a specific embodiment of the present invention, the shape of the carrier 21 is square, oval, star-shaped, circular, regular geometric shape or special shape.

[0059] The outer contour of the vision detection unit 21 of the utility model is adapted to the shape of the carrier 21, and can be square, elliptical, star-shaped, circular, regular geometric shape or special shape.

[0060] Preferably, the surface of the carrier is white and the sight mark 211 is black, so that the sight mark used for vision detection is white with black characters. Alternatively, in certain specific applications requiring corrective vision detection, the carrier may also use other colors as needed, such as the red-green balance test chart commonly used in optometry examinations.

[0061] The size of the sight mark is adapted to the size of the corresponding visual acuity level and can be selected according to the specifications of the standard visual acuity chart.

[0062] At present, the international standard far vision chart has 2.5 meters and 5 meters specifications, and the near vision chart has 30 centimeters specifications. The size of the sight mark in the vision detection unit of the utility model can be determined according to the size of the sight mark corresponding to the vision level in the 2.5 meters and 5 meters specifications, and the near vision chart has 30 centimeters specifications.

[0063] In a preferred embodiment, the vision level of the sight mark 211 in the vision detection unit of the present invention is 1.0, that is, a qualified vision level, so that the user can check whether his or her vision is qualified at any time.

[0064] In a specific embodiment of the present invention, Figure 8 As shown, the carrier is also provided with an upper sight mark 213 located above the sight mark 211 and a lower sight mark 214 located below the sight mark 211;

[0065] The visual acuity level corresponding to the upper sight mark 213 is the visual acuity level above the visual acuity level corresponding to the set sight mark 211;

[0066] The vision level corresponding to the lower sight mark 214 is the next vision level of the vision level corresponding to the set sight mark 211 .

[0067] Specifically, if the vision level of the set sight mark 211 is 1.0, the vision level of the upper sight mark 213 is 0.8, and the vision level of the lower sight mark 214 is 1.2. By setting three sight marks of different vision levels on one carrier, and arranging the sight marks in an up-down alignment, it is convenient for users to make comparisons and judgments. When the sight mark 211 is unclear or slightly blurry, users can look up at the upper sight mark 213 or look down at the lower sight mark 214 for comparison and judgment. It is convenient to know whether the vision is getting better or worse, whether there is suspected visual fatigue, pseudomyopia, diopter change, etc., and remind themselves that they need to pay more attention to visual health.

[0068] The vision detection unit of the utility model is used to solve the problems that the existing vision chart is large in size, not suitable for home use, occupies a large area, and affects the beauty of interior decoration. The vision detection unit of the utility model is an independent character or character group, which is small in size, easy to carry, and simple and convenient to fix. The user only needs to choose a vision detection unit that meets his or her vision standards, and can allow the user to perform self-tests in any occasion. As long as there is reasonable light and a calibrated standard distance, the vision test system can even be used in office settings, public community spaces, and even toilets, so that the user can pay attention to the changes in his or her visual fatigue anytime and anywhere. The vision detection unit can be made into a sticker or refrigerator sticker, which can be attached at will, and it is also very convenient for the user to perform self-vision testing. Similarly, it only needs to be looked at at a suitable distance.

[0069] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A vision detection unit, characterized in that: include: a carrier on which at least one sight mark under a vision level is provided; The carrier is also provided with an identifier, and the identifier is arranged close to the sight mark; The identifier is any one of letters, graphics and patterns, or a combination of two or more.

2. The vision detection unit according to claim 1, characterized in that: It also includes a connecting piece connected to the carrier and used to fix the carrier.

3. The vision detection unit according to claim 2, characterized in that: The connecting member is an adhesive layer arranged on the back side of the carrier.

4. The vision detection unit according to claim 2, characterized in that: The connecting piece is a Velcro arranged on the back side of the carrier.

5. The vision detection unit according to claim 2, characterized in that: The connecting piece is a magnetic sticker arranged on the back side of the carrier.

6. The vision detection unit according to claim 2, characterized in that: The connecting member is a hanging rope, a hanging chain or a hanging ring connected to the carrier.

7. The vision detection unit according to claim 1, characterized in that: The carrier is also provided with an upper sight mark located above the sight mark and a lower sight mark located below the sight mark; The visual acuity level corresponding to the upper sight mark is the visual acuity level above the visual acuity level corresponding to the set sight mark; The vision level corresponding to the lower sight mark is the next vision level of the vision level corresponding to the set sight mark.

8. The vision detection unit according to claim 1, characterized in that: The number of the sight marks is two or more, and the directions of the sight marks are different.

9. The vision detection unit according to claim 1, characterized in that: The sight mark is any one of the E-shape, C-shape, other letters, numbers and graphics commonly used in standard vision tests.

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