| Type | Manufacturer |
|---|---|
| Site web | https://www.heptagon.fi/ |
| Numéro de téléphone | +41 (44) 497 30 00 |
| Adresse | Moosstrasse 2 CH-8803 Rueschlikon Switzerland |
Heptagon is a Finnish-Swiss company and was established in 1993 to design and sell diffractive optical elements.