2010

Continuously Variable Apodizing Filters

altEdmund Optics (Barrington, NJ) has introduced continuously variable apodizing filters designed to eliminate undesirable intensity variations and create an even illumination profile in optical systems. The Bull’s Eye type filter features a high optical density in the center that decreases continuously to an uncoated edge in order to flatten the intensity profile of Gaussian beams. The Reverse Bull’s Eye type filter features a high optical density coating on the edge of the filter, which increases continuously to an uncoated center. EO’s standard Bull’s Eye type filters are available in 25- and 50-mm diameters with end densities of 1.0 and 2.0. They are manufactured using a B270 substrate to a dimensional tolerance of +0.00/ -0.20, a surface quality of 60-40, and a thickness of 1.50 +0.10. The filters are suitable for a design wavelength range of 400-700 nm.

Photonics West Booth #1312
For Free Info Visit http://info.hotims.com/28049-215

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