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Multispectral Filter Microarray
Apr 2006
Materion Precision OpticsRequest Info
WESTFORD, Mass., April 18 -- Barr Associates Inc. has introduced an 18-element multipectral filter microarray in which each element is a high-precision thin film filter just 0.032 millimeters wide.

barrassociates.jpgThe company said its objective in developing filter arrays is to reduce mass, power and volume in multispectral sensors by eliminating a filter wheel. It said the new technology has more spectral bands, which can be accommodated in a smaller volume and are compatible with higher-resolution detector arrays. The new microarrays can be used with any focal plane array detector, from ultraviolet to long-wave infrared wavelength ranges. Potential applications include commercial colorimetry and space-based multispectral imaging.

"The newly developed microarrays will provide a very rugged, high-performance alternative to linear variable filters or diffraction gratings," said Kevin Downing, manager of the arrays product line at Barr Associates.

For more information, visit:; e-mail:

Barr Associates Inc.
2 Lyberty Way
Westford, MA 01886
Phone: (978) 692-7513
Fax: (978) 692-7443


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filter wheel
A device that holds a number of filters and allows the filter with the desired characteristics to be rotated into an optical aperture.
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