Request CLEO Notifications
Get information about the 2022 CLEO Conference.
Thank you for attending the all-virtual CLEO Conference and Exhibition. We look forward to seeing you next year!
Policies and Terms of Registration
Reasonable policies and terms of registration have been established for CLEO. We encourage you to read these carefully as all registrants to CLEO will be required to agree to these policies and terms as a condition of registration.
Credit cards are accepted (VISA, MasterCard and American Express). Payments made by check or wire transfer must be made payable to The Optical Society in US dollars and drawn on a US bank. Payment must accompany your registration form in order to process your registration order.
Refund and Cancellation Policy
All requests for refunds must be received in writing by Thursday, 22 April 2021. A USD 75.00 service charge will be assessed for processing refunds. All registrations received after Thursday, 22 April 2021 are NON-REFUNDABLE. Please allow four to six weeks for processing.
c/o CompuSystems, Inc.
2651 Warrenville Rd. Suite 400
Downers Grove, IL 60515
Fax +1 708.344.4444
Registration Customer Service
For questions regarding registration, please contact the CLEO Registration Customer Service via phone or email. Customer Service hours are from 09:00 - 17:00 Central Daylight Time (CDT, UTC-5:00).
Phone: + 1 224.563.3173
Code of Conduct
It is important to the success of this meeting that every participant be treated with consideration and respect. Please review the Code of Conduct and Anti-harassment policy.