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Little e / Little e

Little e

The main function of the product design is to digitize the visual acuity chart, use the eye lensto see the long-distance random opening direction change of the letter E in the internal visualacuity chart,select the opening direction of the letter e you see through the up, down,leftand right direction keys at the end of the produet,and the middle key at the end is the skipkey when you can't see clearly,After the test is completed, the final test result is obtainedthrough data analysis.

University

河南城建学院

河南城建学院
平顶山市, China

Jiawei Ma,
Henan University of Urban Construction

Qianli Chen,
Henan University of Urban Construction

Donghai Wang,
Henan University of Urban Construction