Adjustable interpupillary distance spectacles suitable for clinical refraction

Abstract

This utility model discloses an adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry, comprising a frame and a replaceable lens body. The frame has a clamping part; the frame includes a frame beam, which is hollow inside and contains a first magnet, the length of which is less than the length of the frame beam. The bottom of the frame beam is flat, and the first magnet has an adjustment slider for adjusting the position of the first magnet inside the frame beam; the replaceable lens body includes a frame beam, which contains a second magnet, which is cylindrical and can rotate around an axis inside the frame beam; a lens is fixedly mounted on the bottom surface of the frame beam, and the top of the frame beam is a flat surface that matches the bottom of the frame beam. This solution allows people with moderate to high myopia, hyperopia, and astigmatism who need different prescriptions for near and far vision to conveniently clip an additional near lens onto their existing lenses while wearing their original eyeglasses, and the pupillary distance can be adjusted to suit different people.

Description

Technical Field

[0001] This solution relates to the field of eyeglasses, specifically to an adjustable interpupillary distance clip-on eyeglasses suitable for clinical optometry. Background Technology

[0002] With the development and progress of the times, people's demand for high-quality near vision is increasing. Many middle-aged and elderly people over 40 years old are experiencing difficulty seeing near objects, i.e., presbyopia. For people who already wear glasses with moderate to high myopia, hyperopia, and astigmatism, they may need additional prescription for near vision. Traditional glasses for alternating between near and far vision are not convenient enough, and multifocal glasses are expensive and take a long time to adapt to, making them unsuitable for most people. Therefore, a clip-on lens with adjustable pupillary distance is designed. The clip-on lens can be designed with different additional prescriptions. After the additional prescription for presbyopia is determined according to the patient's actual needs, it can be clipped directly onto the existing glasses for near vision. At the same time, the pupillary distance of the replaceable lens can be adjusted as needed. Summary of the Invention

[0003] The technical problem this invention aims to solve is the need for people who require different lens prescriptions for nearsightedness and distance vision to frequently change their glasses.

[0004] The specific technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] An adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry includes a frame and a replaceable lens body. The frame has a clamping part for clamping onto the temples, lenses, or nose pads of existing eyeglasses. The frame includes a left frame and a right frame fixedly connected together. Both the left and right frames include a frame beam, which is hollow inside. A first magnet is provided inside the frame beam, and the length of the first magnet is less than the length of the frame beam. The bottom of the frame beam is flat. An adjustment slider is provided on the first magnet for adjusting the position of the first magnet inside the frame beam.

[0006] The replaceable mirror body includes a mirror beam, and a second magnet is provided inside the mirror beam. The second magnet is a cylinder that can rotate around an axis inside the mirror beam.

[0007] A lens is fixedly mounted on the bottom surface of the mirror beam, and the top of the mirror beam is a plane that fits the bottom of the frame beam.

[0008] Compared to existing technologies, this solution offers the following advantages: The clip-on lens is attached to existing vision glasses; when needed, a replacement near-vision lens of the desired prescription can be attached to the existing glasses, allowing for prescription adjustment. A second magnet inside the bridge of the replacement lens attracts a first magnet inside the frame, holding the replacement lens under the frame. Because the bottom and top of the frame are fitted planes, the replacement lens remains firmly attached and will not rotate. The second magnet is a rotatable cylinder that automatically adjusts to the appropriate attachment position based on the magnetic layout of the first magnet. The assembly process is simple and does not require consideration of magnet polarity.

[0009] This solution is particularly suitable for the eyeglass trial stage in clinical optometry. The alternative lenses used for trial are set in increments of +0.25DS, with a total of nine lens options ranging from +1.00DS to +3.00DS, which can meet clinical needs. During the optometry test, after the user has determined their presbyopia correction, they try on an alternative lens of the appropriate power. This trial effect directly mirrors the effect during everyday use, providing a more accurate and direct result.

[0010] The first magnet is equipped with an adjustment slider. By adjusting the position of the first magnet inside the frame beam, the position of the replaceable lens body that is attracted to the frame beam can be adjusted. Since the left and right frames are independent, the positions of the first magnets in the left and right frames can be adjusted so that the replaceable lens body can fit the user's interpupillary distance and achieve the best usage effect.

[0011] Preferably, the inner cavity of the frame beam is non-circular, and the cross-section of the first magnet is adapted to the inner cavity of the frame beam. This ensures the fixed posture of the first magnet and prevents movement and noise when no replaceable mirror body is provided.

[0012] Preferably, the first magnet is a cylinder, disposed within the inner sleeve, and is rotatable about an axis within the inner sleeve. The adjusting slider is fixedly mounted on the inner sleeve. The first magnet is also configured as a rotatable cylinder, facilitating adjustment to a mutually attractive posture with the second magnet. Its placement within the inner sleeve allows for convenient adjustment of its position within the frame beam without hindering its rotation, thereby adjusting the interpupillary distance.

[0013] Preferably, the damping of the adjusting slider is located within the frame beam. This ensures that once the first magnet is adjusted to its position, its position remains fixed and will not change arbitrarily.

[0014] Preferably, a slot is provided above or on the front side of the frame beam, and the adjusting slider is a spring plate. Pressing the pressing part drives the friction block to disengage from the inner wall of the frame beam. This reduces friction during adjustment and facilitates adjustment. Furthermore, this adjustment method is simple and easy for elderly people to operate, as they often have difficulty performing fine motor skills.

[0015] Preferably, the outer edge of the frame beam is provided with a guide plate. This guides the replaceable mirror body and facilitates assembly.

[0016] Preferably, the lens has a side guard plate on its upper side. When handling the lens, the side guard plate can be grasped to ensure the lens itself remains clean.

[0017] Preferably, the first magnet is fixedly connected to a screw, and the side end of the frame beam is provided with a screw hole, the screw being adapted to the screw hole. Fine adjustment can be achieved through the screw, and since the adjustment side of the screw is located at the side end of the frame beam, it does not obstruct the view. Especially for elderly people who have difficulty performing fine motor tasks, screw adjustment can filter out hand tremors, transforming coarse movements into fine movements, making interpupillary distance adjustment more convenient and accurate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram showing the usage state of Embodiment 1 of this utility model;

[0019] Figure 2 This is a schematic diagram of the frame beam structure in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the mirror beam structure in Embodiment 1 of this utility model;

[0021] Figure 4 This is a schematic diagram of the adjusting slider in Embodiment 3 of this utility model;

[0022] Figure 5 This is a schematic diagram of the side guard plate in Embodiment 4 of this utility model;

[0023] Figure 6 This is a schematic diagram of the frame beam in Embodiment 6 of this utility model.

[0024] The following is a list of component names represented by the reference numerals in the attached diagram:

[0025] 1. Picture frame;

[0026] 101. Left frame; 102. Right frame; 103. Frame beam; 104. Slot; 105. First magnet; 106. Adjusting slider; 107. Friction block; 108. Pressing part; 109. Inner sleeve; 110. Screw; 111. Screw hole;

[0027] 2. Replaceable lens body;

[0028] 201. Bridge; 202. Second magnet; 203. Lens; 204. Side panel;

[0029] 3. Existing glasses. Detailed Implementation

[0030] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0031] Example 1:

[0032] like Figures 1 to 3 As shown, an adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry includes a frame 1 and a replaceable lens 2. The frame 1 is clipped onto the original eyeglasses 3. The frame 1 includes a left frame 101 and a right frame 102 fixedly connected together. Both the left frame 101 and the right frame 102 include a frame beam 103. The frame beam 103 is hollow inside and a first magnet 105 is provided inside the frame beam 103. The length of the first magnet 105 is less than the length of the frame beam 103. An adjustment slider 106 is provided on the first magnet 105. The adjustment slider 106 is used to adjust the position of the first magnet 105 inside the frame beam 103.

[0033] The replaceable mirror body 2 includes a mirror beam 201, and a second magnet 202 is provided inside the mirror beam 201. The second magnet 202 is a cylinder and can rotate around an axis inside the mirror beam 201.

[0034] A lens 203 is fixedly mounted on the bottom surface of the mirror beam 201.

[0035] In this embodiment, specifically, the inner cavity of the frame beam 103 is square, and the cross-section of the first magnet 105 is adapted to the inner cavity of the frame beam 103.

[0036] In this embodiment, specifically, the damping adjustment slider 106 is located inside the frame beam 103.

[0037] Example 2:

[0038] like Figure 4 As shown, in this embodiment, specifically, the first magnet 105 is a cylinder, the first magnet 105 is disposed inside the inner sleeve 109, the first magnet 105 can rotate around the axis inside the inner sleeve 109, and the adjusting slider 106 is fixedly disposed on the inner sleeve 109.

[0039] Example 3:

[0040] like Figure 4 As shown, in this embodiment, specifically, a slot 104 is provided above or on the front side of the frame beam 103 (see reference). Figure 2The adjusting slider 106 is a spring sheet, such as one made of spring steel or plastic with a certain elasticity. It includes a pressing part 108 and a friction block 107. The pressing part 108 is embedded in the slot 104, and the friction block 107 is located in the inner cavity of the frame beam 103. When no external force is applied, the friction block 107 abuts against the inner wall of the frame beam 103 to generate friction, thereby fixing the position of the first magnet 105 in the frame beam 103. Pressing the pressing part 108 drives the friction block 107 to disengage from the inner wall of the frame beam 103.

[0041] Example 4:

[0042] like Figure 5 As shown in this embodiment, specifically, a side guard plate 204 is provided on the upper side of the lens 203.

[0043] Example 5:

[0044] In this embodiment, specifically, a guide plate is provided on the outer edge of the frame beam 103.

[0045] Example 6:

[0046] like Figure 6 As shown in this embodiment, specifically, the first magnet 105 is fixedly connected to a screw 110, and the side end of the frame beam 103 is provided with a screw hole 111, with the screw 110 and the screw hole 111 being adapted to each other.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable interpupillary distance clip-on eyeglass lens suitable for clinical optometry, comprising a frame (1) and replaceable lens bodies (2), said frame (1) comprising a left frame (101) and a right frame (102) fixedly connected together, characterized in that, Both the left frame (101) and the right frame (102) include a frame beam (103). The frame beam (103) is hollow inside. A first magnet (105) is provided inside the frame beam (103), and the length of the first magnet (105) is less than the length of the frame beam (103). An adjusting slider (106) is provided on the first magnet (105), and the adjusting slider (106) is used to adjust the position of the first magnet (105) inside the frame beam (103). The replaceable mirror body (2) includes a mirror beam (201), and a second magnet (202) is provided inside the mirror beam (201). The second magnet (202) is a cylinder and can rotate around an axis inside the mirror beam (201). The bottom surface of the mirror beam (201) is fixedly provided with a lens (203).

2. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 1, characterized in that, The inner cavity of the frame beam (103) is non-circular, and the cross-section of the first magnet (105) is adapted to the inner cavity of the frame beam (103).

3. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 1, characterized in that, The first magnet (105) is a cylinder and is located inside the inner sleeve (109). The first magnet (105) can rotate around the axis inside the inner sleeve (109). The adjusting slider (106) is fixedly installed on the inner sleeve (109).

4. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 1, characterized in that, The damping of the adjusting slider (106) is provided inside the frame beam (103).

5. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 1, characterized in that, A slot (104) is provided above or on the front side of the frame beam (103). The adjusting slider (106) is a spring. Pressing the pressing part (108) will drive the friction block (107) to disengage from the inner wall of the frame beam (103).

6. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 5, characterized in that, The outer edge of the frame beam (103) is provided with a guide plate.

7. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 1, characterized in that, The lens (203) is provided with a side guard plate (204) on its upper side.

8. The adjustable pupillary distance clip-on eyeglasses lens suitable for clinical optometry according to claim 1, characterized in that, The first magnet (105) is fixedly connected to a screw (110), and the side end of the frame beam (103) is provided with a screw hole (111), and the screw (110) is adapted to the screw hole (111).

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