Yu-hung Chou

3 Patents

• US123994222025

  Projection Optical System with a Concave Reflector in the Projection Lens

  SUN YANG OPTICS DEVELOPMENT CO., Ltd.

  0 cites
• USRE0502712025

  Zoom Lens

  Young Optics Inc.

  0 cites
• US118991882024

  Optical Lens System

  YOUNG OPTICS Inc.

  0 cites