CN2037601U

CN2037601U - Movable eyesight-test instrument

Info

Publication number: CN2037601U
Application number: CN 88218488
Authority: CN
Inventors: 杨帆
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-10-15
Filing date: 1988-10-15
Publication date: 1989-05-17

Abstract

The utility model discloses a movable eyesight-testing instrument which is composed of a base plate, a face plate, character discs, etc. The movable eyesight-testing instrument is characterized in that each character disc can rotate. The utility model has the advantages of simple structure and convenient operation, and provides an ideal eyesight-testing instrument for widely medical workers and resident families.

Description

Activity eyesight test instrument

This utility model relates to a kind of eyesight test instrument commonly used.

Over the years, the medical worker is in order to test people's vision, generally all be to adopt a kind of mark-hold formula eyesight test table, promptly according to quilt test personnel in certain distance in the Identification Lists ability of the aperture position of symbol " E " judge, determine the myopic degree of eyes, but this table has a fatal weakness.Be exactly the quizzee for the inspection (particularly in recruiting student, advertising for workers, recruit cadres, recruit soldiers work) of escaping the medical worker often will show in advance in symbol " E " aperture position one by one speed recite, and then test, make the medical worker grasp like this less than truth, bring unnecessary loss to work, because the printing of test watch paper is not easy to keeping and carries, can not in each family, promote the use of simultaneously.

The purpose of this utility model is exactly the problem that exists at the said goods, provide a kind of each distinguished symbol " E " to rotate arbitrarily, and it is simple in structure, be easy to carry, both be applicable to hospital, also be applicable to the activity eyesight test instrument of each family.

This utility model is finished like this.Activity eyesight test instrument mainly is made up of parts such as base plate, panel, letter disks, during use, stir letter disk, make that the opening of the symbol " E " on the letter disk can be to any direction, stir panel then, in hole, panel garden, demonstrate size and Orientation distinct symbols " E " again and again for being differentiated by the test personnel.

Below in conjunction with accompanying drawing most preferred embodiment is described.

Fig. 1 is circular activity eyesight test instrument structure sketch map.

Fig. 2 is the base arrangement sketch map of circular activity eyesight test instrument.

Fig. 3 is a rectangle activity eyesight test instrument structure sketch map:

Embodiment one:

With reference to Fig. 1, Fig. 2.Base plate of the present utility model (1) is a disc, 12 round dials (4) are evenly being followed closely with rivet in the disk bottom surface, each is all rotatable, on the card of letter disk (4), rule according to visual acuity chart, write the symbol " E " and the vision number of degrees that vary in size respectively, above the chassis, be provided with a hook (5), panel (2) is a circular slab, to have a small garden hole (3) bigger than letter disk (4) in the moderate position of half one thereon, use a rivet (6) with panel (2) and base plate (1) riveted then, but panel (2) can rotate in the disk of base plate (1).Base plate (1), panel (2), all available plastics of each parts of letter disk (4) or lucite manufacturing.

Embodiment two:

With reference to 3, base plate (1) is a rectangle, upward 27 garden shape letter disks (4) are arranged at base plate (1) with the rivet nail, on the card of each composing stick (4), write the symbol " E " that varies in size respectively and put on the vision number of degrees according to the rule of visual acuity chart, be provided with hook on the top of base plate (1) in the left side.Each parts plastics of present embodiment, organic glass is auspicious or the millboard manufacturing.

Claims

1, a kind of activity eyesight test instrument is made up of base plate (1), panel (2), letter disk parts such as (4).It is characterized in that: base plate (1) is a garden dish type, the garden face of trying to get to the heart of a matter is being followed closely 12 garden shape letter disks (4) with rivet, each letter disk (4) is rotatable, on the card of letter disk (4), rule according to visual acuity chart, writing the symbol " E " and the vision number of degrees that vary in size respectively, panel (2) is a garden shape plate, the moderate position of half one thereon, it is bigger than letter disk (4) to have a small garden hole (3), uses rivet (6) with panel (2) and base plate (1) riveted, panel (2) can rotate in the dish of the garden of base plate (1).

2, activity eyesight test instrument according to claim 1 is characterized in that panel (2), base plate (1), all available plastics of letter disk (4) or lucite manufacturing.