Posted in | News | Light / Image Sensor

Affordable High Performance Beam Expander

Optical Surfaces Ltd. announce a new series of Reflective Beam Expanders with an output clear aperture of 75mm and a selection of magnifications, which are designed for researchers requiring high performance and ease-of-use.

An A1-Series Reflective Beam Expander. Image Credit: Optical Surfaces Ltd.

​​​​​​​Benefiting from a high throughput off-axis design and new assembly technique – the new A1-Series of Reflective Beam Expanders deliver high performance at a market competitive price and are available on short delivery times.

Available in 3.5x, 5x, 7.5x and 10x fixed magnification configurations – the A1-Series of Reflective Beam Expanders are designed to be easy to use and to provide accurate, unobstructed expansion of any collimated input light source. These new reflective beam expanders are portable and can be used without the need for internal re-alignment.

A1-Series Reflective beam expanders incorporate high precision off-axis mirrors which have constant focal lengths, regardless of the wavelength of light being focused. As a consequence, unlike lens-based beam expanders, they can be used with collimated polychromatic light without the need of any fine focus adjustment.

Supplied housed in a robust aluminium cover - each A1-Series Beam Expander comes with provision for secure fixing to an optical table. Alignment aids are provided to ensure correct beam pointing and tracking during integration. Manufactured to better than lambda/5 transmitted wavefront accuracy, these reflective beam expanders produce no central obscuration and highly efficient transmission is obtained, unspoilt by diffraction patterns.

Source: https://www.optisurf.com/

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