Optical instrument for vision correction

Abstract

The invention provides an optical instrument for vision correction. The optical instrument comprises a cap part, a vision correction assembly and a connecting rod for connecting the cap part and the vision correction assembly, one end of the connecting rod is hinged to the cap part, the other end of the connecting rod is hinged to the vision correction assembly, the vision correction assembly includes a first tube body and a second tube body in threaded connection with the first tube body, a part of the second tube body is disposed in the first tube body, the first tube body is internally provided with an eyepiece, the second tube body is internally provided with a middle lens, the first tube body is internally provided with annular protrusions to separate the second tube body from the eyepiece, the connecting rod is hinged to the outside of the second tube body, the vision correction assembly further comprises a third tube body and a mounting cylinder for mounting of the second tube body and the third tube body, the outer diameter of the mounting cylinder is between the inner diameter and the outer diameter of the second tube body, the third tube body is internally provided with an objective lens, the vision correction assembly further comprises a fastening part, away from the second tube body, on the first tube body, and the fastening part can be adapted to eye sockets of a human face.

Description

technical field [0001] The invention belongs to the technical field of vision correction, in particular to an optical instrument for vision correction. Background technique [0002] Vision is the ability of the retina to distinguish images. The quality of vision is determined by the ability of the retina to distinguish images. However, when the refractive media of the eye (such as cornea, lens, vitreous body, etc.) Eyes with a well-functioning retina can still lose vision. [0003] The existing vision correction method can be treated by surgery, which can restore the vision to a normal level. However, there are certain risks in surgical treatment, and there will still be sequelae after the operation. Therefore, the existing technology is relatively safe and secure. The current vision correction method is still treated by optical instruments. However, the existing optical instruments for vision correction have a complex structure, are not very convenient to wear, cannot bet...

AI Technical Summary

Problems solved by technology

The quality of vision is determined by the ability of the retina to distinguish images. However, when the refractive media of the eye (such as cornea, lens, vitreous body, etc.) Eyes with a well-functioning retina can still lose vision

[0003] The existing vision correction method can be treated by surgery, which can restore the vision to a normal level. However, there are certain risks in surgical treatment, and there will still be sequelae after the operation. Therefore, the existing technology is relatively safe and secure. The current vision correction method is still treated by optical instruments. However, the existing optical instruments for vision correction have a complex structure, are not very convenient to wear, cannot better fit the face of the human body, and have poor adjustment performance. Deviations need to be dealt with by professionals, which is not convenient for people to use for a long time

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