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Training device convenient for pupil distance adjustment

A technology of interpupillary distance adjustment and training equipment, which is applied in the direction of eye exercisers and physical therapy, which can solve the problems of large number of reverse shots, inconvenient daily management and use, etc., and achieve the effect of facilitating purchase cost and management

Inactive Publication Date: 2015-09-23
SICHUAN RENXIN MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the positive and negative pairs of prisms in the above-mentioned prior art, both pairs of prisms are fixed in the frame, and there are nearly ten types of prism specifications widely used, plus prisms of special specifications, the existing vision training center is equipped with a large number of reverse cameras, Inconvenient for daily management and use, the present invention provides a training device that is convenient for interpupillary distance adjustment

Method used

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  • Training device convenient for pupil distance adjustment
  • Training device convenient for pupil distance adjustment
  • Training device convenient for pupil distance adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like Figure 1 to Figure 3 As shown, a training device for convenient interpupillary distance adjustment includes a handle 1 and a movable frame 2 and a fixed frame 4 arranged on the handle 1, and a pair of lens clips are arranged on the movable frame 2 and the fixed frame 4 Holding portion 5, the lens holding portion 5 is an unclosed ring, and the circumference of the unclosed ring is greater than 1 / 2 of the circumference of the entire ring, and the lens holding portion 5 is an elastic member , the lens holding part 5 is also provided with a slot 3 arranged along the circumferential direction of the lens holding part 5;

[0027] The movable mirror frame 2 is also provided with a connecting portion 6, and the connecting portion 6 is a block-shaped structure provided with through holes passing through both ends of the connecting portion 6. The through hole is in clearance fit with the handle 1, and the movable mirror frame The two lens clamping parts 5 of 2 are respecti...

Embodiment 2

[0032] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 3 As shown, when the lens is inserted into or pulled out of the lens holding part 5 from the opening end of each lens holding part 5, as a comprehensive optimization scheme of the amount of deformation of the lens holding part 5 and the ability to fix the lens, the non-closed The circumference of the ring is between four-sevenths and two-thirds of the circumference of the entire ring.

[0033] In order to prevent the present invention from being damaged due to excessive local stress, fatigue damage or stress concentration, the bottom surface of the slot 3 is an arc-shaped surface.

[0034] In order to make the present invention maintain a certain clamping force on both sides of the lens, so as to facilitate the compactness of the present invention when used, and to facilitate the training effect, the groove wall of the slot 3 is a smooth surface, and the width of the slot 3 is...

Embodiment 3

[0036] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 3 As shown, in order to obtain the degree of distance between the two frames, any side of the grip handle 1 is also provided with a plurality of interpupillary distance scales 10 evenly distributed along the length direction of the grip handle 1 .

[0037] Further, the fixed point between the connecting portion 6 and the corresponding lens clamping portion 5 is located in the center of the outside of the lens clamping portion 5, and the connecting portion 6 is also provided with a reading hole 8, and the reading hole 8 and the interpupillary distance The scale 10 is located on the same side as the handle 1 , and the line connecting the centers of the two lens clamping parts 5 on the movable frame 2 passes through the reading hole 8 .

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Abstract

The invention discloses a training device convenient for pupil distance adjustment. The training device comprises a holding handle, a movable lens frame and a fixed lens frame. The movable lens frame and the fixed lens frame are arranged on the holding handle. A pair of lens clamping portions is arranged on each of the movable lens frame and the fixed lens frame. Each lens clamping portion is an unclosed round ring, wherein the perimeter of the unclosed round ring is a half that of a whole round ring. The lens clamping portions are elastic pieces, and slots are formed in the lens clamping portions. The movable lens frame is provided with a connection portion. The two lens clamping portions of the movable lens frame are fixed to the upper side and the lower side of the connection portion respectively. A locking screw is connected to the connection portion in a threaded mode. A travelling wheel is connected to the connection portion through a roller. The lateral side of the travelling wheel contacts with the surface of the holding handle. Strip-shaped ridges or rugged strips are arranged on the contact faces of the traveling wheel and the holding handle. The travelling wheel can rotate around the axis of the roller. By the training device, purchase cost reduction and management of visual trainers are benefited, and pupil distance adjustment accuracy is high.

Description

technical field [0001] The invention relates to the field of vision training equipment, in particular to a training device that facilitates the adjustment of interpupillary distance. Background technique [0002] The reverse racket is also called the flip racket and the butterfly racket. It is composed of two pairs of positive and negative prisms with equal degrees and a handle. Between the cards, turn back and forth the positive and negative pairs of prisms on the reverse racket by holding the handle, and record the change from positive mirror angle to negative mirror angle for a period of time while ensuring that the trainer's eyes can read clearly every time they flip The number of changes in degrees. In the prior art, the reverse camera is used for eye function training to fully mobilize the potential of the glasses itself, which can effectively improve reading speed, improve visual clarity and eye comfort. [0003] The positive and negative pairs of prisms in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61H5/00
Inventor 曾平
Owner SICHUAN RENXIN MEDICAL TECH