Beam Collimators and Expanders for Large Diameter Optical Systems

Hits:62   Date: 9/24/2025

Optical Surfaces Ltd has developed a novel kinematic mounting arrangement for its pre-aligned beam collimator and beam expander sub-assemblies. 
 
Traditionally large diameter or longer focal length optical systems require an extremely large, heavy and expensive reflective beam collimator system. Benefiting from a lightweight modular design - pre-aligned beam collimator kits from Optical Surfaces Ltd overcome these shortfalls. The introduction of kinetic mounting on these pre-aligned modules makes assembly of complete large diameter beam collimator systems – faster, more precise and highly reproducible. The high stability and performance of these beam collimator kits is achieved by a novel mounting technique, and a zero expansion better than lambda / 10 parabolic mirror, respectively.

250mm aperture modular beam collimator system (1.5m focal length) fully assembled on an optical table

 
Similarly beam expanders often come as complete, pre-aligned mounted optical systems in an enclosure. While this approach provides satisfactory beam expansion solution for optics up to 200mm diameter, above this an enclosed system solution becomes too large, too heavy, and too expensive. Optical Surfaces pre-aligned beam expander modules offer a lightweight and cost saving solution for beam expansion of optics up to 500mm diameter. Pre-aligned beam expander modules supplied by Optical Surfaces include mounted primary and secondary mirrors that come pre-set and fully aligned. These pre-aligned modules enable researchers to avoid undertaking a complex 5-degrees of freedom set-up allowing installation in a few hours rather than days or even weeks. The introduction of kinetic mounting on these pre-aligned modules makes assembly of complete large diameter beam expander systems simple, more precise and highly reproducible.

Large diameter beam expander modules

 
For further information on fast assembly, pre-aligned beam collimator and beam expander kits for larger diameter optical systems please contact Optical Surfaces Ltd. on +44-208-668-6126 / sales@optisurf.com.
 
Optical Surfaces Ltd has been producing high precision optical components and systems for m 60 years. The company’s ISO 9001-2015 approved manufacturing workshops and test facilities are deep underground in a series of tunnels excavated in solid chalk where temperature remains constant, and vibration is practically non-existent. With such stable conditions testing, particularly with long path lengths, becomes quantifiable and reliable.
 
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Worldwide HQ

Optical Surfaces Ltd.
Godstone Road
Kenley
Surrey CR8 5AA
UK
tel. +44-208-668-6126
email sales@optisurf.com
web http://www.optisurf.com