optical aberration


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Related to optical aberration: spherical aberration
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  • noun

Synonyms for optical aberration

an optical phenomenon resulting from the failure of a lens or mirror to produce a good image

References in periodicals archive ?
Optical aberrations are inherently included in the ray-tracing process but diffraction limit is ignored.
Ocular optical aberrations after photorefractive keratectomy for myopia and myopic astigmatism.
Optical aberrations of the eye are the errors of the optical system that limit the resolution, contrast and amount of detail in the image formed on the retina.
The researchers then reconstructed them into a single image after subtracting the blurring effects and ever-changing speckled artifacts caused by turbulence in the atmosphere and other optical aberrations.
27 -- Harvard's School of Engineering and Applied Sciences (SEAS) has come up with a flat silicon-based lens that can focus light without any distortion or optical aberrations, such as those found with even the best made curved glass lenses.
5-60 wide-angle cine zoom and the FK30-300 telephoto cine zoom are both precision-matched lenses that incorporate "breakthrough" Canon optical designs which optimise and enhance multipleimaging attributes, while minimising optical aberrations and distortions.
It is typically recommended to people with optical aberrations on the cornea.
With Loop lenses, the optical aberrations usually associated with conventional wrap lenses are minimised and the wrap angle is incorporated as a parameter for each individual wrap lens, "providing optimum correction right from the start".
Research has shown that at typical interior light levels, lighting is sufficiently high so that the decrease in optical aberrations of the eye caused by a smaller pupil usually more than compensates for the small loss in retinal light quantity.
The system uses an adaptive optics system to automatically measure the optical aberrations in the eye with a wavefront sensor and rapidly compensates for these aberrations with a wavefront corrector, increasing lateral resolution by an order of magnitude.
The specimen can be tilted to provide different surfaces for examination, and the software includes compensation for optical aberrations.
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.
SS also provides tight tracking, decreasing susceptibility to tilt, optical aberrations, and mechanical drift.
95) features a proprietary field-flattener lens system to correct for field curvature and other optical aberrations across its entire 76.
Popularization of laser corneal refractive surgery and its potential to induce or remove optical aberrations (both low order and higher order aberrations) is the main reason behind better understanding of the nature of aberrations as well as their influence on visual quality.