Alluxa
>> Optical filters
Haas Technologies, Inc.
>> Beam Delivery Systems
Holo-OR Ltd.
>> Diffractive optics
Laser Beam Products
>> Infrared Optics
Northumbria Optical Coatings Ltd.
>> IR Filters
Omegal Optical
>> Optical interference filters
PLX Inc.
>> Retroreflectors for High Power Applications