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Portable vision tester

A detector and portable technology, applied in the field of portable vision detectors, can solve the problems of limited use location, easy fatigue, and large size of vision detectors, and achieve the effects of light weight, small size, easy portability and operation.

Inactive Publication Date: 2013-08-07
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many vision testing instruments currently in use are bulky, inconvenient to carry, and require an external 220v power supply, so the place of use is limited; at the same time, the user needs to manually indicate the visual target during the testing process, and it is easy to get tired after working for a long time

Method used

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Embodiment Construction

[0035] See figure 1 , figure 2 , the present invention is a kind of portable visual acuity testing instrument, and it comprises two parts of small single-chip microcomputer control circuit and auxiliary component. The relationship between the two is: the small single-chip microcomputer control circuit is responsible for controlling and displaying the visual mark, and the detection auxiliary component is responsible for fixing and supporting the main control board, the liquid crystal display screen 6, the visual mark controller 4 and other parts in the small single-chip microcomputer control circuit , The small single-chip microcomputer control circuit is installed in the front and rear housings 2,8 in the detection auxiliary components.

[0036] Described small single-chip microcomputer control circuit is made up of main control board 14, liquid crystal display screen 6 and visual mark controller circuit. The direction of the signal is: the single-chip microcomputer on the...

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Abstract

The invention discloses a portable vision tester, which consists of a small-sized singlechip control circuit and a detection assisting component, wherein the small-sized singlechip control circuit is used for controlling and displaying a sighting target; the detection assisting component is used for fixing and supporting parts such as a main control board, a liquid crystal display screen and the like in the small-sized singlechip control circuit; the small-sized singlechip control circuit is arranged in front and back shells in the detection assisting component, and consists of a main controlboard, a liquid crystal display screen and a sighting target controller circuit; and the detection assisting component comprises an observation mirror (1), a front shell (2), a detection pen (3), a sighting target controller (4), a liquid crystal screen installation piece (5), a main control board installation piece (7), a back shell (8), an interface (9) of the sighting target controller, an interface (10) of the singlechip control circuit on the sighting target controller, and a signal wire (11) for connecting the sighting target controller with the small-sized singlechip control circuit. The portable vision tester has light weight and a small size, and can be applied to vision examination of various levels.

Description

(1) Technical field [0001] The invention relates to a portable vision detector, which belongs to the technical field of detection instruments and equipment. (2) Background technology [0002] Many vision testing instruments currently used are bulky, inconvenient to carry, and require an external 220v power supply, so the places of use are limited; at the same time, the user needs to manually indicate the visual target during the testing process, and it is easy to get tired after working for a long time. The present invention aims to improve the traditional visual acuity tester by adopting new technology under the premise of respecting the tester's habit. (3) Contents of the invention [0003] 1. Purpose: The purpose of this invention is to provide a portable vision tester, which overcomes the deficiencies in the prior art, and is a portable vision tester with novel structure, convenient operation and small size. [0004] 2. Technical solution: The present invention is a p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/036
Inventor 刘荣申华渠源赵宵洋
Owner BEIHANG UNIV
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