Consent of Independent Registered Public Accounting Firm

EX-23.1 2 dex231.htm CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Consent of Independent Registered Public Accounting Firm

Exhibit 23.1

Consent of Independent Auditors

We consent to the incorporation by reference in the Registration Statement (Form S-8 Nos. 33-19510, 333-12737, 333-74682, 333-129675 and 333-164827) of our report dated March 19, 2010, with respect to the consolidated financial statements of Photop Technologies, Inc. included in Form 8-K/A of II-VI Incorporated dated March 19, 2010.

/s/ Ernst & Young Hua Ming

Shanghai, the People’s Republic of China

March 19, 2010