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  • New Focal Lengths for TechSpec Compact Instrumentation
Nov 2013
Edmund Optics Inc.Request Info
BARRINGTON, N.J., Nov. 5, 2013 — Edmund Optics Inc. has added f/11 and f/16 lenses with 16-, 25- and 35-mm focal lengths to its Techspec compact instrumentation imaging line.

The lenses feature low lens-to-lens variation and a broadband antireflection coating for maximum light transmission. Their adjustable, lockable focus enables users to set the best position prior to integration into instrumentation.

Each focal length is available in a range of f numbers, allowing the user to modify resolution, throughput and depth of field. A variety of aperture stop versions are offered to provide maximum flexibility in lens selection. Customized f-number versions also are available.

The lenses are designed for volume integration applications such as analytical medical devices, including benchtop-based blood analyzers.


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antireflection coating
A thin layer of material applied to a lens surface to reduce the amount of reflected energy. Ideally the index of refraction of that material should be equal to the square root of the product of the indices of the material on either side of the coating, while the ideal thickness for a single-layer coating is one-quarter of the wavelength at which reflectance is to be minimized. See also multilayer coating.
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