Progressive multi-focal lens experience mirror

Abstract

The utility model provides a progressive multifocal lens experience mirror which is mainly applied to progressive multifocal lens experience. The structure mainly comprises a main frame, a rack frame ring, a progressive multifocal lens, a knob gear, a connecting block, a screw rod, a screw rod cover plate, a torsion spring and a torsion spring cover plate, and adopts the structural principle that a straight rack is arranged at the upper end of the rack frame ring, and a lens replacement frame ring is arranged at the lower end of the rack frame ring; a progressive multifocal lens arranged below the main frame is movably adjusted on an X axis through a screw rod structure in the rack frame ring; the progressive multifocal lens arranged below the main frame is movably adjusted on the Y axis through meshing transmission of the spur rack on the rack frame ring and the knob gear, and the bright points are as follows: the X-axis and Y-axis two-degree-of-freedom integrated free adjustment of the progressive multifocal lens is realized, and the problem that some progressive multifocal experience lenses exist in the prior art is solved; the problems of short adjustment stroke, difficulty in adjustment, poor adjustment precision and incapability of conveniently replacing lenses exist.

Description

Technical Field

[0001] The utility model relates to the field of experience glasses, in particular to a progressive multifocal lens experience glass. Background Art

[0002] The function and practicality of progressive multifocal lenses are gradually being discovered and recognized by the public. However, progressive multifocal lenses still have the disadvantages of cumbersome measurement and long processing cycle. Therefore, the popularization of progressive multifocal lenses urgently requires a progressive multifocal lens experience tool that is convenient and quick for the public to experience.

[0003] A kind of smooth view progressive multifocal spectacle lens proposed in Chinese utility model patent application No.: CN202222531688.9, which includes a distance zone, a gaze stabilization zone, a progressive channel and a near zone; the average refractive power change speed in the gaze stabilization zone is smaller than the average refractive power change speed in the progressive channel, and smaller than the average refractive power change speed from the distance measurement point to the fitting center; the optical power of the smooth view progressive multifocal spectacle lens increases slowly from the distance zone to the near zone.

[0004] There are some progressive multifocal experience glasses on the market, but the existing experience glasses have some shortcomings during use and still need to be improved. The existing progressive multifocal experience glasses have difficulty in adjusting the distance and cannot be adjusted to the required position. Therefore, we make improvements on this and propose a progressive multifocal lens experience glass. Utility Model Content

[0005] The purpose of the utility model is to address the problems raised by the existing background technology. In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions: a progressive multifocal lens experience mirror, including a main frame, a rack frame ring, a progressive multifocal lens, a knob gear, and a connecting block, the upper end of the rack frame ring is a spur rack, the lower end of the rack frame ring is a lens replacement frame ring, the progressive multifocal lens arranged below the main frame is adjusted by the movement of the screw structure in the rack frame ring on the X axis; the progressive multifocal lens arranged below the main frame is adjusted by the movement of the spur rack on the rack frame ring and the knob gear meshing transmission on the Y axis.

[0006] As a preferred technical solution of the utility model, the rack frame ring is hollowed out in the middle and is fixed with the progressive addition lens by interference fit.

[0007] As a preferred technical solution of the utility model, the upper end of the knob gear is a spur-tooth knob, and the lower end of the knob gear is a gear meshing with the rack frame ring.

[0008] As a preferred technical solution of the utility model, the upper end of the connecting block is a screw rod matched with a threaded hole connecting rod, and the lower end of the connecting block is a rotating gear hole shaft matched with a positioning block.

[0009] As a preferred technical solution of the utility model, the upper end of the rotating clamp arm is a frame ring matching groove, the middle end of the rotating clamp arm is a rotating hole, and the rear end of the rotating clamp arm is a rotating handle.

[0010] As a preferred technical solution of the utility model, a rotating clamp arm rotating shaft and a torsion spring installation position are provided on the rotating clamp arm upper cover.

[0011] As a preferred technical solution of the utility model, a torsion spring is arranged in the upper cover of the rotating clamp arm.

[0012] As a preferred technical solution of the utility model, the groove at the end of the rotating clamp arm matches with the rack frame ring.

[0013] As a preferred technical solution of the utility model, the rack frame ring moves in the X-axis direction by a screw structure, or is replaced by a gear structure, a chain belt structure, or a connecting rod structure.

[0014] As a preferred technical solution of the utility model, the rack frame ring moves in the Y-axis direction as a gear rack structure, or is replaced by a screw structure, a chain belt structure, or a connecting rod structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: in the scheme of the present invention: the upper end of the rack frame ring is a spur rack, the lower end of the rack frame ring is a lens replacement frame ring, the progressive multifocal lens arranged below the main frame is adjusted by movement on the X-axis through the screw structure in the rack frame ring; the progressive multifocal lens arranged below the main frame is adjusted by movement on the Y-axis through the meshing transmission of the spur rack on the rack frame ring and the knob gear, thereby realizing integrated free adjustment of the two degrees of freedom of the progressive multifocal lens on the X and Y axes, solving the problem that some progressive multifocal experience glasses in the prior art have difficulty in distance adjustment and cannot be adjusted to the required position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure provided by the utility model;

[0017] Figure 2 A schematic diagram of the structure of the rotating clamp arm provided by the utility model;

[0018] Figure 3 A schematic diagram of the torsion spring structure provided by the utility model;

[0019] Figure 4 A schematic diagram of the main structure provided by the utility model;

[0020] Figure 5 A schematic diagram of the top view structure provided by the utility model;

[0021] Figure 6 A left-side structural schematic diagram provided by the utility model;

[0022] Figure 7 This is a schematic diagram of the local structure provided by the utility model.

[0023] Indicated in the figure:

[0024] 1. Main frame; 2. Rack frame ring; 21. Spur rack; 22. Lens replacement frame ring; 3. Progressive multifocal lens; 4. Knob gear; 5. Connecting block; 6. Rotating clamp arm; 7. Rotating clamp arm upper cover; 8. Torsion spring. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0026] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model for which protection is sought, but merely represents some embodiments of the utility model. Based on the embodiments of 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. It should be noted that the embodiments of the utility model and the features and technical solutions in the embodiments can be combined with each other without conflict. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] Example 1: Please refer to Figure 1-Figure 7 A progressive multifocal lens experience mirror comprises a main frame 1, a rack frame ring 2, a progressive multifocal lens 3, a knob gear 4, and a connecting block 5. The upper end of the rack frame ring 2 is a straight rack 21, and the lower end of the rack frame ring 2 is a lens replacement frame ring 22.

[0028] The progressive multifocal lens 3 arranged below the main frame 1 is adjusted in movement on the X-axis by the screw structure in the rack frame ring 2; the progressive multifocal lens 3 arranged below the main frame 1 is adjusted in movement on the Y-axis by the spur rack 21 on the rack frame ring 2 meshing with the knob gear 4.

[0029] The rack frame 2 has a hollow center and is fixed to the progressive multifocal lens 3 by interference fit.

[0030] The upper end of the knob gear 4 is a spur gear knob, and the lower end of the knob gear 4 is a gear meshing with the rack frame ring 2.

[0031] The upper end of the connecting block 5 is a screw rod matched with a threaded hole connecting rod, and the lower end of the connecting block 5 is a rotating gear hole shaft matched with a positioning block.

[0032] The upper end of the rotating clamp arm 6 is a frame ring matching groove, the middle end of the rotating clamp arm 6 is a rotating hole, and the rear end of the rotating clamp arm 6 is a rotating handle.

[0033] A rotating clamp arm upper cover 7 is arranged outside the rotating clamp arm 6 , and a rotating axis of the rotating clamp arm 6 and a torsion spring installation position are arranged on the rotating clamp arm upper cover 7 .

[0034] A torsion spring is arranged inside the rotating clamp arm upper cover 7 .

[0035] The groove at the end of the rotating clamp arm 6 matches with the rack frame ring 2.

[0036] The rack frame ring 2 moves in the X-axis direction by a screw structure, or is replaced by a gear structure, a chain belt structure, or a connecting rod structure.

[0037] The rack frame ring 2 moves in the Y-axis direction as a gear rack structure, or is replaced by a screw structure, a chain belt structure, or a connecting rod structure.

[0038] Main frame 1: 1. Provides 2 screw assembly positioning positions; 2 rotating clamp arm 6 clamp positions; 2 clamp upper arms.

[0039] Rack frame ring 2: 2 in total, left and right. The upper end is a straight rack 21, and the lower end is a lens replacement frame ring 22.

[0040] Progressive multifocal lens 3: 2 on the left and right. Lenses with different parameters are available.

[0041] Knob gear 4: 2 on the left and right. The upper end is a straight-tooth knob, and the lower end is a gear that meshes with the rack frame ring 2.

[0042] Connecting block 5: 2 pieces in total. The upper end is a screw rod with a threaded hole connecting rod, and the lower end is a rotating gear hole shaft with a positioning block.

[0043] Rotating clamp arm 6: 2 in total on the left and right. The upper end is a specific frame ring matching groove, the middle end is a rotating hole, and the rear end is a rotating handle.

[0044] Rotating clamp arm upper cover 7: 2 on the left and right. Provides a mounting position for the rotating axis of the rotating clamp arm 6 and the torsion spring.

[0045] Torsion spring: provides elastic force for the rotating clamp arm 6 to achieve clamping action.

[0046] The lens has integrated free adjustment function on X-axis and Y-axis.

[0047] The lens frame can be freely disassembled and assembled to replace lenses with different parameters.

[0048] The clamp is fixed on the eyeglass frame ring by rotating the clamp arm 6.

[0049] The principle of the utility model is that the movement and adjustment of the rack frame ring 2 on the X axis depends on the screw structure, and the movement and adjustment of the rack frame ring 2 on the Y axis depends on the gear rack meshing transmission.

[0050] The connection block 5 realizes the connection in the X-axis and Y-axis directions, and realizes integrated adjustment.

[0051] The rack frame ring 2 can realize the replacement of lenses. The middle of the frame ring is hollowed out and the lens is fixed with the reference glasses frame ring through interference fit.

[0052] The clamp is positioned on the eyeglass frame ring, and the clamp arm 6 is rotated to cooperate with the upper arm of the clamp, and the torsion spring provides elastic force to firmly clamp.

[0053] The lens X-axis and Y-axis are integrated and freely adjustable, which is convenient and quick. The lens frame can be freely disassembled and replaced with lenses of different parameters.

[0054] The rack frame ring 2 moves in the X-axis direction as a screw structure, but gears, chains, and connecting rod structures can also be replaced. The rack frame ring 2 moves in the Y-axis direction as a gear rack structure, and screws, chains, and connecting rod structures can also be replaced.

[0055] During the use of the utility model,

[0056] Step 1: Open the clamp and clamp it on the eyeglass frame.

[0057] Step 2: Adjust the lens freely in the X-axis and Y-axis directions until the vision is clear.

[0058] Step 3: You can replace lenses with different parameters.

[0059] Step 4 repeats step 2.

[0060] Step 5: Determine the appropriate progressive addition lens 3 parameters.

[0061] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or replacement of the present invention; and all technical solutions and improvements that do not depart from the spirit and scope of the present invention are included in the scope of the claims of the present invention.

Claims

1. A progressive multifocal lens experience glasses, comprising a main frame (1), a rack frame ring (2), a progressive multifocal lens (3), a knob gear (4), and a connecting block (5), wherein the upper end of the rack frame ring (2) is a spur rack (21), and the lower end of the rack frame ring (2) is a lens replacement frame ring (22), characterized in that: The progressive multifocal lens (3) arranged below the main frame (1) is adjusted in movement on the X-axis through the screw structure in the rack frame ring (2); the progressive multifocal lens (3) arranged below the main frame (1) is adjusted in movement on the Y-axis through the meshing transmission of the spur rack (21) on the rack frame ring (2) and the knob gear (4).

2. The progressive multifocal lens experience glasses according to claim 1, characterized in that: The rack frame ring (2) has a hollow center and is fixed to the progressive addition lens (3) by interference fit.

3. The progressive multifocal lens experience glasses according to claim 1, characterized in that: The upper end of the knob gear (4) is a spur gear knob, and the lower end of the knob gear (4) is a gear meshing with the rack frame ring (2).

4. The progressive multifocal lens experience glasses according to claim 1, characterized in that: The upper end of the connection block (5) is a screw rod matched with a threaded hole connecting rod, and the lower end of the connection block (5) is a rotating gear hole shaft matched with a positioning block.

5. The progressive multifocal lens experience glasses according to claim 4, characterized in that: It also comprises a rotating clamp arm (6), the upper end of the rotating clamp arm (6) is a frame ring matching groove, the middle end of the rotating clamp arm (6) is a rotating hole, and the rear end of the rotating clamp arm (6) is a rotating handle.

6. The progressive multifocal lens experience glasses according to claim 5, characterized in that: A rotating clamp arm upper cover (7) is arranged outside the rotating clamp arm (6), and a rotating shaft of the rotating clamp arm (6) and a torsion spring installation position are arranged on the rotating clamp arm upper cover (7).

7. The progressive multifocal lens experience glasses according to claim 6, characterized in that: A torsion spring is arranged inside the rotating clamp arm upper cover (7).

8. The progressive multifocal lens experience glasses according to claim 5, characterized in that: The groove at the end of the rotating clamp arm (6) matches the rack frame ring (2).

9. The progressive multifocal lens experience glasses according to claim 1, characterized in that: The rack frame ring (2) moves in the X-axis direction by a screw structure, or is replaced by a gear structure, a chain belt structure, or a connecting rod structure.

10. The progressive multifocal lens experience glasses according to claim 1, characterized in that: The rack frame ring (2) moves in the Y-axis direction in a gear rack structure, or is replaced by a screw structure, a chain belt structure, or a connecting rod structure.

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