EX-21.1 6 v97043a1exv21w1.txt EXHIBIT 21.1 EXHIBIT 21.1 SUBSIDIARIES OF REGISTRANT AOTI Operating Company, Inc. Accent Optical Technologies (Switzerland) GmbH Accent Optical Technologies Co., Ltd (Japan) Accent Optical Technologies (U.K.) Ltd. Accent Optical Technologies (Germany) GmbH Accent Optical Technologies France Accent Korea Co. Ltd. Accent Optical Technologies Singapore Pte. Ltd.