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Aberration-Compensation Plates

Photonics.com
Jul 2010
Edmund Optics Inc.Request Info
 
BARRINGTON, N.J., July 15, 2010 — Optimized for use in collimated light with small fields of view, Edmund Optics’ TechSpec spherical aberration-compensation plates feature a precision BK7 substrate.

As light travels through an optical system, the system may experience some level of spherical aberrations, resulting in decreased image quality and leading to a compromise in overall system performance. The plates are designed to compensate and correct known amounts of spherical aberration. They should be used in collimated spaces and placed near a pupil. The transmitted wavefront is accurate to 1/10λ.

The plates can be combined to induce the desired amount of compensatory spherical aberration in a given system. Negative sign plates create overcorrected spherical aberration, while positive plates result in undercorrected spherical aberration.

The devices are available in 12.5, 25 and 50 mm diameters in both positive and negative sign plates with aberrations of 0.25λ, 0.50λ and 1.00λ. Spherical aberration plates applied to imaging systems will improve overall system performance while decreasing the complexity of the design. They are in-stock and available for immediate delivery for fast turnaround.

They are fully supported by engineering prints and are easily integrated into complex assemblies through the available Zemax files.


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GLOSSARY
pupil
1. In the eye, the opening in the iris that permits light to pass and be focused on the retina. 2. In a lens, the image of the aperture stop as seen from object and image space.
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