Vietometer

Abstract

The utility model relates to a perimeter which comprises a body, an eye movement tracking camera and a light reflection assembly, the eye movement tracking camera is installed on the body, the light reflection assembly is installed on the body, and the light reflection assembly is suitable for reflecting light reflected by eyeballs to the eye movement tracking camera. Therefore, the eye movement tracking camera can acquire an image of the eyeball through the light reflection assembly. According to the perimeter, the influence of the correction lens on eyeball image acquisition by the eye movement tracking camera can be reduced, and it is ensured that the eyeball image can be accurately acquired by the eye movement tracking camera.

Description

Technical Field

[0001] The present application relates to the technical field of perimeter equipment, and in particular to a perimeter. Background Art

[0002] To ensure accurate measurements, the perimeter needs to be aligned with the eye during use. Currently, this is primarily done through eye tracking technology, which captures an image of the eye, determines the eye's position, and then adjusts the perimeter based on this information to keep it aligned with the eye.

[0003] When a related art perimeter uses eye tracking technology to obtain an eye image, if the user wears corrective lenses, the perimeter is easily affected by the corrective lenses. Utility Model Content

[0004] An embodiment of the present application provides a perimeter that can reduce the influence of corrective lenses when acquiring eye images, thereby at least partially solving the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object, according to a first aspect of the present application, a perimeter is provided, comprising:

[0006] ontology;

[0007] an eye tracking camera, mounted on the body;

[0008] A light reflecting component is installed on the main body, and the light reflecting component is suitable for reflecting the light reflected by the eyeball to the eye tracking camera, so that the eye tracking camera can obtain the image of the eyeball through the light reflecting component.

[0009] Optionally, the body is used to be detachably mounted on a corrective lens disposed opposite to the eyeball;

[0010] The eye tracking camera is configured to be disposed on a side of the corrective lens away from the eyeball along the thickness direction of the corrective lens;

[0011] Along the direction of gravity, the light reflecting component is used to be arranged below the corrective lens.

[0012] Optionally, the light reflecting component includes a reflecting lens, which is mounted on the main body. The reflecting lens includes a reflecting surface, and the eye tracking camera faces the reflecting surface to obtain the image of the eyeball through the reflecting surface.

[0013] Optionally, the reflective lens is rotatable relative to the body.

[0014] Optionally, along the direction of gravity, the reflective lens is at least partially opposite to the corrective lens.

[0015] Optionally, the eye tracking camera and the body are located on the same side of the light reflecting component.

[0016] Optionally, along the thickness direction of the corrective lens, the orthographic projection of the eye tracking camera on the corrective lens at least partially coincides with the corrective lens.

[0017] Optionally, the perimeter includes a fill light, which is installed on the body and is used to emit light to the eyeball.

[0018] Optionally, the perimeter further includes a base, and the body is movably mounted on the base.

[0019] Optionally, the perimeter includes two bodies, one of which is used to face the left eyeball, and the other of which is used to face the right eyeball.

[0020] In the perimeter of the embodiment of the present application, when in use, the body is moved to a position facing the eyeball, and the light reflecting component is located on the path of the reflected light of the eyeball. After the light hits the eyeball, it is reflected to the light reflecting component, and the light reflecting component reflects the light to the eye tracking camera, so that the eye tracking camera can obtain the image of the eyeball through the light reflecting component. That is, the light reflected by the eyeball is directly transmitted to the eye tracking camera after reflection by the light reflecting component, without passing through corrective lenses, which can reduce the impact of corrective lenses on the eye tracking camera's acquisition of the eyeball image, ensuring that the eye tracking camera can accurately obtain the image of the eyeball.

[0021] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0023] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0024] Figure 1 is a schematic structural diagram of a perimeter provided in an exemplary embodiment of the present disclosure;

[0025] Figure 2 is one of the schematic diagrams of the use state of the perimeter provided in the exemplary embodiment of the present disclosure;

[0026] Figure 3 This is the second schematic diagram of the use state of the perimeter provided in the exemplary embodiment of the present disclosure;

[0027] Figure 4 This is the third schematic diagram of the use state of the perimeter provided in the exemplary embodiment of the present disclosure;

[0028] Figure 5 Schematic diagram of the use status of the perimeter in the related art.

[0029] Description of reference numerals:

[0030] 1. Main body; 2. Eye tracking camera; 3. Light reflection component; 4. Eyeball; 5. Corrective lens; 6. Fill light; 31. Reflective lens; 311. Reflective surface. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0032] According to the first aspect of this application, see Figure 1 and Figure 2 The present disclosure provides a perimeter. The perimeter includes a body 1, an eye-tracking camera 2, and a light reflection assembly 3. The eye-tracking camera 2 is mounted on the body 1. The light reflection assembly 3 is mounted on the body 1. The light reflection assembly 3 is adapted to reflect light reflected by an eyeball 4 toward the eye-tracking camera 2, so that the eye-tracking camera 2 can obtain an image of the eyeball 4 through the light reflection assembly 3.

[0033] According to the perimeter of the embodiment of the present application, when in use, the body 1 is moved to a position facing the eyeball 4, and the light reflecting component 3 is located on the path of the reflected light of the eyeball 4. After the light is irradiated on the eyeball 4, it will be reflected to the light reflecting component 3, and the light reflecting component 3 will reflect the light to the eye tracking camera 2, so that the eye tracking camera 2 can obtain the image of the eyeball 4 through the light reflecting component 3, that is, the light reflected by the eyeball 4 is directly transmitted to the eye tracking camera 2 after reflection by the light reflecting component 3, without passing through the corrective lens 5, which can reduce the influence of the corrective lens 5 on the eye tracking camera 2 obtaining the image of the eyeball 4, and ensure that the eye tracking camera 2 can accurately obtain the image of the eyeball 4.

[0034] It is understood that the body 1 includes a processor, and the eye-tracking camera 2 is electrically or communicatively connected to the processor. That is, the eye-tracking camera 2 transmits detection data to the processor, allowing the body 1 to adjust its position based on the detection data to ensure that the body 1 is always aligned with the eye 4. Specifically, after the eye-tracking camera 2 obtains an image of the eye 4, it can process the image to obtain the position of the eye 4, and then transmit the eye 4 position information to the processor, allowing the body 1 to adjust its position in real time. Alternatively, the eye-tracking camera 2 can directly transmit the image data to the processor, which then processes the image data to obtain the eye 4 position information and adjusts the position accordingly.

[0035] Figure 5 Schematic diagram of the use of the perimeter in the related art. Figure 5 In order to reduce the influence of corrective lenses 5, the perimeter in the related art needs to place eye-tracking camera 2 at a position far away from the body 1, resulting in a larger perimeter volume. However, by providing a light reflection component 3, the present application allows the eye-tracking camera 2 to be placed closer to the body 1. That is, compared with the related art, the distance between the eye-tracking camera 2 and the body 1 is shorter, which improves the compactness of the perimeter structure and facilitates the miniaturization of the perimeter.

[0036] In some examples, the corrective lens 5 is, for example, a myopia lens or a hyperopia lens.

[0037] In some embodiments, see Figure 2 and Figure 3 , the body 1 is used for being detachably arranged on a corrective lens 5 arranged opposite to the eyeball 4;

[0038] Along the thickness direction of the corrective lens 5, the eye tracking camera 2 is arranged on a side of the corrective lens 5 away from the eyeball 4;

[0039] Along the direction of gravity, the light reflecting assembly 3 is arranged below the corrective lens 5 .

[0040] It can be understood that the light reflecting component 3 is arranged below the corrective lens 5, so that the light reflected by the eyeball 4 can be directly transmitted to the light reflecting component 3 without passing through the corrective lens 5, and the light reflecting component 3 can reflect the light to the eye tracking camera 2, that is, the light reflected by the eyeball 4 is directly transmitted to the eye tracking camera 2 after reflection by the light reflecting component 3, without passing through the corrective lens 5, so that the eye tracking camera 2 can obtain the light of the eyeball 4 that has not passed through the corrective lens 5, which can effectively reduce the influence of the corrective lens 5 on the eye tracking camera 2 obtaining the image of the eyeball 4, and ensure that the eye tracking camera 2 can accurately obtain the image of the eyeball 4.

[0041] It can be understood that, compared with arranging the eye tracking camera 2 above or below the corrective lens 5 , arranging the eye tracking camera 2 on the side of the corrective lens 5 away from the eyeball 4 can effectively reduce the volume of the perimeter.

[0042] In some embodiments, see Figure 1 、 Figure 2 and Figure 3 The light reflecting component 3 includes a reflecting lens 31, which is installed on the body 1. The reflecting lens 31 includes a reflecting surface 311. The eye tracking camera 2 faces the reflecting surface 311 to obtain an image of the eyeball 4 through the reflecting surface 311.

[0043] It can be understood that the reflective surface 311 of the reflective lens 31 can reflect the light reflected by the eyeball 4 to the eye tracking camera 2, that is, a light transmission path can be formed through the reflective lens 31 along the eyeball 4, the reflective surface 311 and the eye tracking camera 2. The light reflected by the eyeball 4 is directly transmitted to the eye tracking camera 2 after being reflected by the light reflecting component 3, without passing through the corrective lens 5, so that the eye tracking camera 2 can avoid the influence of the corrective lens 5 while obtaining the image of the eyeball 4, thereby ensuring that the eye tracking camera 2 can accurately obtain the image of the eyeball 4.

[0044] In some examples, the reflective lens 31 is a single-sided reflective lens.

[0045] In some examples, the light reflecting component 3 includes a reflecting lens 31, and the light reflected by the eyeball 4 is transmitted to the eye tracking camera 2 after being reflected once by the reflecting lens 31; the light reflecting component 3 may also include at least two reflecting lenses 31, and the light reflected by the eyeball 4 is transmitted to the eye tracking camera 2 after being reflected twice or more by at least two reflecting lenses 31.

[0046] In some embodiments, the reflective lens 31 is rotatable relative to the body 1 .

[0047] It is understandable that the reflective lens 31 is rotatably mounted on the body 1 , and the rotation angle of the reflective lens 31 can be adjusted as needed to adapt to different users, ensuring that the reflective lens 31 can reflect the light reflected by the eyeball 4 to the eye tracking camera 2 .

[0048] In some embodiments, see Figure 2 and Figure 3 , along the direction of gravity, the reflective lens 31 is at least partially opposite to the corrective lens 5 .

[0049] It can be understood that at least part of the reflective lens 31 is located directly below the corrective lens 5, ensuring that the light reflected by the eyeball 4 can be transmitted to the reflective lens 31 without passing through the corrective lens 5. The reflective lens 31 then reflects the light to the eye tracking camera 2, so that the light reflected by the eyeball 4 is directly transmitted to the eye tracking camera 2 after reflection by the light reflecting component 3, without passing through the corrective lens 5. That is, the eye tracking camera 2 can obtain light that has not passed through the corrective lens 5, which can reduce the impact of the corrective lens 5 on the eye tracking camera 2 obtaining the image of the eyeball 4, and ensure that the eye tracking camera 2 can accurately obtain the image of the eyeball 4.

[0050] In some examples, the body 1 includes a first end surface that is adapted to face the eyeball 4, and the reflective lens 31 at least partially protrudes from the first end surface. During use, at least a portion of the reflective lens 31 can protrude forward to the side of the corrective lens 5 that is closest to the eyeball 4. This ensures that light reflected from the eyeball 4 is transmitted to the reflective lens 31 without passing through the corrective lens 5. The light reflected from the eyeball 4 is then reflected by the light reflective assembly 3 and directly transmitted to the eye tracking camera 2. This can reduce the impact of the corrective lens 5 on the image of the eyeball 4 captured by the eye tracking camera 2, ensuring that the eye tracking camera 2 can accurately capture the image of the eyeball 4.

[0051] In some embodiments, see Figure 2 and Figure 3 , the eye tracking camera 2 and the body 1 are located on the same side of the light reflecting component 3.

[0052] It will be appreciated that placing eye-tracking camera 2 and body 1 on the same side of light reflector assembly 3 makes the perimeter structure more compact. Furthermore, because light reflector assembly 3 can reflect light reflected from eyeball 4 back to eye-tracking camera 2, eye-tracking camera 2 can still capture an image of eyeball 4. In other words, this embodiment not only reduces the effect of corrective lens 5 on the image of eyeball 4 captured by eye-tracking camera 2, but also makes the perimeter structure more compact, achieving miniaturization.

[0053] In some embodiments, see Figure 2 and Figure 3 , along the thickness direction of the corrective lens 5 , the orthographic projection of the eye tracking camera 2 on the corrective lens 5 at least partially overlaps with the corrective lens 5 .

[0054] It can be understood that arranging the eye tracking camera 2 close to the body 1 reduces the distance between the eye tracking camera 2 and the body 1 , thereby ensuring a compact structure of the perimeter.

[0055] In some examples, eye-tracking camera 2 is adjacent to body 1, reducing the space between them and ensuring a compact perimeter structure. Specifically, eye-tracking camera 2 can abut body 1, such that the distance between them is zero, ensuring a compact perimeter structure.

[0056] In some embodiments, see Figure 4 The perimeter includes a fill light 6 , which is installed on the body 1 and is used to emit light to the eyeball 4 .

[0057] It can be understood that when the light intensity at the eyeball 4 is insufficient, the fill light 6 can emit light to the eyeball 4 to ensure the light intensity at the eyeball 4, so that the eye tracking camera 2 can obtain a clear image of the eyeball 4, and the perimeter can adapt to the needs of different lighting environments.

[0058] It is understandable that the light emitted by the fill light 6 can directly illuminate the eyeball 4, or can illuminate the eyeball 4 after passing through the light reflecting component 3.

[0059] In some examples, the fill light 6 is, for example, an infrared fill light. It should be noted that this is merely an example of the fill light 6 and is not intended to be particularly limited. The fill light 6 may also be other types of light sources.

[0060] In some examples, the perimeter further includes a light intensity detector for detecting light intensity at the eyeball 4, and the light intensity detector is electrically connected to the fill light 6. When the light intensity detector detects that the light intensity at the eyeball 4 is lower than a preset value, the fill light 6 starts to operate to emit light toward the eyeball 4.

[0061] In some embodiments, the perimeter further includes a base, and the body 1 is movably mounted on the base.

[0062] It can be understood that the body 1 is configured to be movable so that the body 1 can move accordingly following the detection of the eye tracking camera 2 , so that the body 1 can always be aligned with the eyeball 4 .

[0063] For example, when the eye tracking camera 2 detects that the position of the eyeball 4 has shifted to the left, the body 1 will move to the left so that the body 1 is always aligned with the eyeball 4.

[0064] In some embodiments, the perimeter includes two bodies 1 , wherein one body 1 is used to face the left eyeball 4 , and the other body 1 is used to face the right eyeball 4 .

[0065] It can be understood that the two bodies 1 can respectively detect the left eyeball 4 and the right eyeball 4 to achieve separate detection of the left eyeball 4 and the right eyeball 4.

[0066] Exemplarily, along the direction of gravity, a reflective lens 31 is provided below each of the two bodies 1 .

[0067] For example, two main bodies 1 may share one eye-tracking camera 2. Alternatively, each main body 1 may have one corresponding eye-tracking camera 2.

[0068] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0069] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0070] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0071] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A perimeter, characterized in that: include: ontology; an eye tracking camera, mounted on the body; a light reflecting component mounted on the body, the light reflecting component being adapted to reflect light reflected by the eyeball to the eye tracking camera, so that the eye tracking camera can obtain an image of the eyeball through the light reflecting component; The body is used to be detachably mounted on a corrective lens arranged opposite to the eyeball; Along the direction of gravity, the light reflecting component is used to be arranged below the corrective lens.

2. The perimeter according to claim 1, wherein: Along the thickness direction of the corrective lens, the eye tracking camera is configured to be disposed on a side of the corrective lens away from the eyeball.

3. The perimeter according to claim 1, wherein: The light reflecting component includes a reflecting lens, which is mounted on the body. The reflecting lens includes a reflecting surface, and the eye tracking camera faces the reflecting surface to obtain an image of the eyeball through the reflecting surface.

4. The perimeter according to claim 3, wherein: The reflective lens is rotatable relative to the main body.

5. The perimeter according to claim 3, wherein: Along the direction of gravity, the reflective lens is at least partially opposite to the corrective lens.

6. The perimeter according to any one of claims 1 to 5, characterized in that The eye tracking camera and the body are located on the same side of the light reflecting component.

7. The perimeter according to claim 6, wherein: Along the thickness direction of the corrective lens, the orthographic projection of the eye tracking camera on the corrective lens at least partially coincides with the corrective lens.

8. The perimeter according to any one of claims 1 to 5, characterized in that The perimeter includes a fill light, which is installed on the body and is used to emit light to the eyeball.

9. The perimeter according to any one of claims 1 to 5, characterized in that The perimeter further includes a base, and the body is movably mounted on the base.

10. The perimeter according to any one of claims 1 to 5, characterized in that The perimeter includes two bodies, one of which is used to face the left eyeball, and the other is used to face the right eyeball.

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