Inventor

YU HENG I

TW3 patents

Patents

3 patents

US7391579B2Jun 24, 2008

Minature zoom lens

POWERGATE OPTICAL INC19 citations81

US7505219B2Mar 17, 2009

Multi-stage lens driving device

POWERGATE OPTICAL INC4 citations59

US7574125B2Aug 11, 2009

Two-stage lens driving device

POWERGATE OPTICAL INC3 citations56