Inventor

WANG QINMEI

CN2 patents

Patents

2 patents

US10694937B2Jun 30, 2020

Hand-held autonomous visual acuity measurement apparatus and visual acuity measuring method

SUZHOU SEEHITECH EQUIPMENTS CO LTD0 citations25

US10478062B2Nov 19, 2019

Optometry apparatus capable of measuring para-central defocus

SUZHOU SEEHITECH EQUIPMENTS CO LTD0 citations25