Follow us...


Search News Archives

News Channels


Coronavirus (COVID-19)


View Channel

New Laboratory Products


View Channel

Lab News


View Channel

Research & Case Studies


View Channel

Microscopy | Image Analysis


View Channel

Separation Science


View Channel



View Channel

Events | Webinars


View Channel

Conferences | Events

New Miniature Reflective Beam Expanders

publication date: Aug 14, 2014
author/source: Optical Surfaces

optspr147-image copy

New smaller diameter (25 - 60mm) Reflective Beam Expanders have been introduced by Optical Surfaces Ltd. for space restricted applications such as for high power lasers and multi-wavelength interferometry.

OSL reflective beam expanders are aspheric mirror-based devices offering either beam expansion or reduction capabilities. Incorporating high precision off-axis mirrors, OSL reflective beam expanders provide an unobstructed output and highly efficient transmission. By comparison, due to dispersion, lens-based beam expanders are only capable of compensating for focus at one wavelength of light, making them only suitable for expanding/reducing monochromatic sources. Reflective beam expanders use mirrors which have constant focal lengths, regardless of the light being focused. Thus, reflective beam expanders can be used with collimated polychromatic light without the need of any fine focus adjustment.

Available in standard (2.5x, 5x, 10x fixed magnification) or customer specified (fixed or variable magnification) configurations – OSL smaller diameter reflective beam expanders are designed to be easy to use and to provide accurate, unobstructed expansion / contraction of any collimated input light source. Optical Surfaces reflective beam expanders are portable and can be used without the need for internal re-alignment.

Each OSL reflective beam expander is supplied housed in aluminium housing with provision for fixing to an optical table. Alignment aids are provided to ensure correct beam pointing. Manufactured to better than lambda/5 surface accuracy, the off-axis design of these reflective beam expanders produces no central obscuration and highly efficient transmission is obtained, unspoilt by spider diffraction patterns. An interferogram and OPD map is supplied with every reflective beam expander manufactured by Optical Surfaces Ltd.

Optical Surfaces Ltd has been producing optical components and systems from its ISO 9001-2000 approved manufacturing facility for more than 50 years and are today accepted as one of the world's leading manufacturers of reflective beam expanders. 

more about optical surfaces



Popular this Month...

Our Top 10 most popular articles this month


Today's Picks...




Looking for a Supplier?

Search by company or by product


Company Name:




Please note Lab Bulletin does not sell, supply any of the products featured on this website. If you have an enquiry, please use the contact form below the article or company profile and we will send your request to the supplier so that they can contact you directly.

Lab Bulletin is published by newleaf marketing communications ltd



Media Partners