Oldenbourg Rudolf
Olivier Philip D.
Omi Toshihiro
OMS-Optical Measuring Systems
Ono Toyoichi
Ono Yoshihisa
Oomori Takeo
Oppenheimer Carl
Opsal Jon
Optical Dimensions, LLC
Optimet, Optical Metrology Ltd.
Opton, Co., Ltd.
Oreo Products Inc.
Orgami Nobutoshi
Orlov Anatoly A.
Oshida Yoshitada
Oshige Takahiko
Ota Kazuhiro
Otani Akihito
Otokake Taro