Request a Visa Invitation Letter

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,

Email: invitations@osa.org

Mail:
OSA Management – Invitation Letter
The Optical Society
2010 Massachusetts Ave., NW
Washington, DC 20036 

Request Letter of Invitation
For individuals requiring letters to obtain a travel visa.