| Company | Phone | City | State | Country | Email |
|
| Janos Technology Janos Technology Inc. is a world leader in advanced optical components and assemblies for both reflective and refractive systems. | (603) 757-0070 | Keene | NH | USA | contact@janostech.com |
| Jenoptik Optical Systems Inc. JENOPTIK Optical Systems, Inc. specializes in rapid design and manufacture of custom precision lenses and lens assemblies.
| (561) 881-7400 | Jupiter | FL | USA | sales@jenoptik-inc.com |
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