THE OPTICAL SOCIETY (OSA)

Light In Focus

Scheduled Maintenance

OSA's websites, including Optics InfoBase and OSA.org are currently unavailable due to maintenance scheduled for Friday, 25 July 2014. We expect this unavailability to last from approximately 20:00 (EDT, UTC-04) to 02:00 (EDT, UTC-04).

We thank you for your patience as we work to improve our services.

If you need assistance, OSA's Customer Service can be reached at +1 202.416.1907 (Worldwide) +1 800.766.4672 (US/Canada) or by emailing us.

Customer Service is available from 07:30 to 18:00 ( EDT, UTC -04 ) Monday through Friday.