A Color Blindness Checker

A checker and colorblindness technology, applied in the field of checkers, can solve problems such as inconvenience, inability to combine multiple colors and effectively perform colorblindness inspection, and achieve the effect of good effect and convenient colorblindness inspection
CN109567737BActive Publication Date: 2021-05-21็Ž‹ๆ”ฟไนพ
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
็Ž‹ๆ”ฟไนพ
Publication Date
2021-05-21

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Abstract

The invention relates to a checker, in particular to a color blind checker. Therefore, the technical problem of the present invention is to provide a color blindness checker that can conveniently and effectively check color blindness. The technical embodiment of the present invention is: a color blindness checker, including a first circular base, a fixed plate, a splint, a first arc spring, a hollow plate, a first bracket, a chuck, a disc, a color plate, Arc-shaped slide bar, second arc-shaped spring, etc.; the top of the first circular base is connected with a fixed plate, and the left and right parts of the fixed plate are connected with splints in a rotating manner. In the first groove, a first arc spring is connected between the inner sides of the two first grooves. In the present invention, inspectors hold the first handle and swing it downwards so as to change the color and merge with the hollow letter boards. In this way, the inspection personnel can replace the hollow letter boards with different characters for inspection, and the inspectors can move the third sliding sleeve forward or backward so that people can see The hollow word board received is blurred or clear.
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Description

technical field

[0001] The invention relates to a checker, in particular to a color blind checker. Background technique

[0002] People will carry out color blindness examination when carrying out military examination or physical examination, color blindness is a kind of congenital color vision disorder disease, color blindness is not allowed in certain occupations, safety accidents are prone to occur. In the color blindness examination, at present, the inspector usually holds things of different colors to let the patient identify the color. Since color blindness is also divided into many types, it is impossible to combine multiple colors and effectively carry out the color blindness examination. Many, the inspectors hold things to let the patients identify the color, and the hands are prone to soreness, which is very inconvenient. Contents of the invention

[0003] In order to overcome the shortcomings that inspectors cannot combine multiple colors and effectively carry ...

Claims

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