Letters of Invitation
Individuals requiring letters of invitation to obtain travel visas to present their papers may access the online form at Invitation Letter Request Form.
Please fill out a separate form for each person requesting a letter
- All letters of invitation will be sent by a locked PDF unless otherwise requested. If you require a paper copy please provide a courier account number or credit card number with expiration date with the original request
- Please allow up to 15 business days to process your request
- OSA is not able to contact U.S. Embassies in support of an individual attempting to gain entry to attend an OSA meeting
- We recommend that you secure your travel visa before registering for the conference as cancellations after the preregistration cutoff can result in a cancellation fee.
Questions about the Visa Invitation Letter application process,
OSA Management – Invitation Letter
The Optical Society
2010 Massachusetts Ave., NW
Washington, DC 20036