Easy-to-Use Reflective Beam Expanders

Optical Surfaces Ltd has launched a new range of Reflective Beam Expanders featuring an output clear aperture measuring around 75 mm and a selection of magnifications. These are specially developed for scientists requiring user-friendliness and high performance.

The new A1-Series of Reflective Beam Expanders benefits from a high throughput off-axis design and a new assembly method. Therefore, it offers high performance at a market-competitive price and is available on short delivery times.

The A1-Series of Reflective Beam Expanders comes in 3.5x, 5x, 7.5xand 10x fixed magnification configurations. They are specially developed to be user-friendly and offer a precise, unimpeded expansion of any collimated input light source. Such new reflective beam expanders are portable and can also be utilized in the absence of internal re-alignment.

The A1-Series Reflective beam expanders integrate high accuracy off-axis mirrors, which possess constant focal lengths, irrespective of the wavelength of light being focused. As a result, unlike lens-based beam expanders, they can be utilized with collimated polychromatic light without requiring any fine focus adjustment.

Each A1-Series Beam Expander is housed in a strong aluminum cover and it comes with provision for secure fixing onto an optical table. Alignment aids are offered to guarantee the right beam pointing and tracking at the time of integration.

The series has been manufactured to better than lambda/5 transmitted wavefront precision; these reflective beam expanders generate no central obscuration, and highly efficient transmission is achieved, unimpaired by diffraction patterns.