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optical aberration |
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optical aberration [′äp·tə·kəl ‚ab·ə′rā·shən] (optics) Deviation from perfect image formation by an optical system; examples are spherical aberration, coma, astigmatism, curvature of field, distortion, and chromatic aberration. Also known as aberration. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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For the PSI, the eccentricity errors are about three times smaller than for the autocollimator, indicating that optical aberrations are somewhat smaller for the PSI than for the autocollimator. ANASA-appointed panel concluded last week that the space agency and the contractor it hired to build the Hubble Space Telescope's primary mirror deserve equal blame for not detecting -- prior to Hubble's launch -- the serious optical aberration that today flaws the telescope's vision. CDM is the exclusive licensee of a patented technology, known as Wavefront Coding(TM), that substantially increases the performance of an imaging system by increasing the depth of field and/or correcting optical aberrations within the image. |
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