An eye vision measuring device

Abstract

The invention relates to an eye vision measuring device, which comprises a foot base and a storage slot. Inside the left and right ends of the bottom end of the foot base are provided with internal penetration grooves, and a transmission rotor is arranged in the middle of the bottom end of the foot base. The transmission rotor The outer side is provided with an inner groove, and the top of the inner groove is connected with the limit plate, the top of the middle part of the foot seat is connected with a central column, and the inside of the central column is provided with a groove, and the inner end of the groove is arranged with a groove There is a column, and a central storage is arranged in the middle of the slot column, and the outer side of the top of the central storage is connected with a material opening. The beneficial effects of the present invention are: the eyesight measuring device is provided with a storage slot, a connecting piece and a spring column, and the connecting piece can be connected and placed through the large-diameter storage slot, and at the same time, it passes through the arc structure at the left and right ends of the connecting piece, that is It can be conveniently used in conjunction with the side connection pin, and the connecting piece can be pushed down by the elastic force of the spring column, so that the limiting plate can be moved down for braking operation.

Description

technical field [0001] The invention relates to the technical field of vision measurement, in particular to an eye vision measurement device. Background technique [0002] Vision refers to the ability of the retina to distinguish images. The quality of vision is judged by the ability of the retina to distinguish images. However, when the refractive media of the eye (such as cornea, lens, vitreous body, etc.) , farsightedness, astigmatism, etc.), even if the retinal function is good, the visual acuity will still decline, and the refractive medium of the eye is cloudy, which can be treated with surgery, while the refractive error needs to be corrected with lenses. [0003] A vision detection device disclosed in the Chinese Invention Patent Application Publication Specification CN 106821298 A, although the vision detection device can realize the adjustment of the same group of visual targets through a driving source, which can improve the adjustment efficiency and reduce the ma...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of eyesight measuring device, to solve a kind of vision detecting device disclosed in Chinese invention patent application publication specification CN 106821298 A proposed in the above-mentioned background technology, this vision detecting device, although, can pass a The driving source can realize the adjustment of the same group of visual targets, which can improve the adjustment efficiency and reduce the manufacturing cost, but the design of the device is not environmentally friendly and energy-saving. Inherent there is the problem that it is difficult to conveniently regulate the movement and stability of the device body. At the same time, due to the different lengths of different eye charts, it is difficult for the general device to properly and dexterously clamp the eye chart, and the general device It is also difficult to use eye charts and other vision measurement tools in combination

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