Inventor

AIURA HIROCHIKA

JP2 patents

Patents

2 patents

US4540253ASep 10, 1985

Method and device for measuring eye refraction errors

ASAHI OPTICAL CO LTD5 citations58

US4637720AJan 20, 1987

Lens meter having a focusing indication system with divided-image registration focusing

ASAHI OPTICAL CO LTD4 citations56