CN2245430Y

CN2245430Y - Eyesight testing apparatus

Info

Publication number: CN2245430Y
Application number: CN 95241612
Authority: CN
Inventors: 张承家; 应念劬
Original assignee: 张海涛
Priority date: 1995-05-17
Filing date: 1995-05-17
Publication date: 1997-01-22
Anticipated expiration: 2005-05-17

Abstract

The utility model relates to an eyesight testing apparatus. Patients are convenient to test sight and correct sight by themselves at any time in the process of curing short sight. The utility model is composed of eye lenses, a box body and a light source, which is characterized in that eye lenses, a slide pipe, a reflection lens, an electric light source and a disc visual chart are arranged on the box body, a sight distance lengthening device is arranged in the box body which is operated by a rotary wheel, vision degrees are marked on the periphery of the rotary wheel, and a sight gear film is inlaid in a rotary disk. When the utility model is used, the eye lenses are pulled out, the rotary wheel is rotated, an optimum The utility model has the advantages of simple structure, convenient use, relaxation, accuracy, etc.

Description

A kind of vision detector

This utility model relates to a kind of instrument of testing eyesight, specifically a kind of vision detector.

The eyesight detecting instrument device that a lot of models differ has appearred in existing market, certain advantage is all arranged on the structure, but also there is certain deficiency, past, school of hospital all is to use visual acuity chart to have an eyesight test, this visual acuity chart is the international standard visual acuity chart, health ministry is stipulated to rise on May 1st, 90 and is stopped to use this visual acuity chart, the logarithmic visual acuity chart of China's design is all adopted in various examination of visual acuity, solved the deficiency of original international standard visual acuity chart, but no matter be previously used international standard visual acuity chart or the logarithmic visual acuity chart that uses now, during inspection, the medical worker needs with finger indication sighting target, when running into large quantities of personnel's health check-up, can make the medical worker tired that arm acid is dizzy, work efficiency descends, thereby the quality of influence inspection, sighting target in the visual acuity chart all is a stationary arrangement on the other hand, this just wants to learn by heart to some and deceives to reach a standard to cause and have an opportunity to take advantage of, and reaches the purpose that examination of visual acuity is passed through, moreover, visual acuity chart is attached on the frame plate, by fluorescent light source, also exist owing to illumination is uneven and cause the shortcoming that is difficult for understanding fully, more can not be as the instrument of checking voluntarily.

The purpose of this utility model is to overcome above-mentioned shortcoming and provides and a kind ofly show fluorescent lamp lighting, excellent in efficiency, and the novel vision detector that can give a test of one's eyesight voluntarily without medical worker finger.

The purpose of this utility model is achieved in that this vision detector, by eyepiece, casing with provide electric light source for oneself and form, eyepiece is set on rectangular casing and slidably slip pipe is set in casing, in this inside of rectangle case reflecting mirror and rotating disk visual acuity chart are set, runner, provide electric light source-battery and bulb for oneself, and be provided with the vision number of degrees at the periphery of runner, on the rotating disk of rotating disk visual acuity chart, inlay a grade film, by the reflecting mirror light path sighting target in the rotating disk visual acuity chart is reflected to eyepiece, thereby reach the purpose of detection.

Providing electric light source-battery and bulb for oneself also can save and need not be provided with and reach the purpose that lamp detects by lamp.

The utlity model has simple in structurely, easy to use, have easily, accurately, expense medical worker's finger does not show, not only be applicable to hospital, school, but also be applicable to the usefulness that the individual gives a test of one's eyesight voluntarily relatively have tangible advantage with existing vision detector.

Bottom further describes this utility model embodiment in conjunction with the accompanying drawings:

Accompanying drawing 1 this utility model structural representation.

Accompanying drawing 2 this utility model rotaring wheel structure sketch maps.

Referring to Fig. 1, eyepiece (2) is set on rectangular casing (1), and the slidably slip pipe (3) that in casing, is provided with, reflecting mirror (4) and (10) and rotating disk visual acuity chart (9) are set in casing (1) inside, runner (5), provide electric light source-battery (6) and bulb (8) for oneself, periphery at runner (5) is provided with the vision number of degrees, in the rotating disk of rotating disk visual acuity chart (9), be inlaid with vision shelves film, referring to accompanying drawing 2, runner (5) is by rotating disk visual acuity chart glue shelves (11), sighting target (12) and vision hole (13), (14) form, rotating wheel, the sighting target in the visual acuity chart reflexes in the runner interstitial hole, reaches the purpose that detects voluntarily thereby the number of degrees of periphery show its vision number of degrees.

This novel also can installation is provided electric light source-battery (6) and bulb (8) for oneself, and its position is not provided with, and constitutes the detector of lamp.

Claims

1, a kind of vision detector, by eyepiece, casing with provide electric light source for oneself and form, it is characterized in that, the slip slip pipe (3) that eyepiece (2) and eyepiece (2) are established at box house is set on casing (1), be provided with reflecting mirror (4) and (10) and rotating disk visual acuity chart (9) in casing (1) inside, runner (5) is provided electric light source battery (6) and bulb (8) for oneself, and being provided with the vision number of degrees at runner (5) periphery, rotating disk visual acuity chart (9) is made up of the vision film of inlaying in the rotating disk.

2, detector according to claim 1 is characterized in that, provides being provided with of electric light source battery (6) and bulb (8) for oneself and can save formation natural light detector.