Read-write telescoping instrument

Abstract

The invention provides a read-write telescoping instrument, and belongs to the technical field of optical instruments for preventing myopia and performing vision health care. The read-write telescoping instrument mainly comprises a telescoping cover and a supporting frame for supporting the telescoping cover; the telescoping cover comprises a main viewing area, wherein the main viewing area is 50mm to 180 mm in height and 65 mm to 250 mm in width; a convex lens is arranged on the periphery, except the lower side, of the main viewing area; and meanwhile, a user can see consciously or unconsciously feel that an object on the opposite side of the convex lens is far away and amplified through the convex lens around the eyes at the same time of reading and writing, and the main viewing area isone or a pair of visual holes for reading or writing or watching; and the convex lens, a black screen, a reflecting mirror, a connecting plate or a connecting frame are arranged below the periphery of the main viewing area. According to the telescoping instrument, the user can consciously or unconsciously see that the object on the opposite side of the convex lens is far away and amplified at thesame time of reading and writing, so that the user can get rid of feeling being close at any time; the read-write field is not limited, the structure is simple, the use is convenient, and the myopiaprevention and treat effects are better. The read-write telescoping instrument is suitable for reading and writing or watching a computer and television.

Description

technical field [0001] The invention belongs to the technical field of optical instruments for preventing myopia and maintaining eyesight, and is especially suitable for reading and writing. Background technique [0002] The occurrence of myopia is caused by the long-term use of the eyes in the near environment. When students sit at the desk at home and study, the front of the book usually faces the wall, and they are looking at near-sighted objects all the time in the three directions of the front, left and right. , looking closer, feeling near consciously or unconsciously, and not getting rid of the feeling of near for a moment. Although there are many instruments for preventing and treating myopia at present, their effects and applications are still very limited, and some have complex structures, which are also very troublesome to manufacture and use. Bring a lot of inconvenience to the user. Contents of the invention [0003] The purpose of the present invention is t...

AI Technical Summary

Problems solved by technology

[0002] The occurrence of myopia is caused by the long-term use of the eyes in the near environment. When students sit at the desk at home and study, the front of the book usually faces the wall, and they are looking at near-sighted objects all the time in the three directions of the front, left and right. , looking near, feeling near consciously or unconsciously, not getting rid of the feeling of near for a moment

Although there are many instruments for the prevention and treatment of myopia at present, their effects and applications are still greatly limited, and some of them have complex structures, which are troublesome to manufacture and use.

bring a lot of inconvenience to users

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