In optics, spherical aberration (SA) is a type of aberration found in optical systems that have elements with spherical surfaces. This phenomenon commonly...

Chromatic aberration does not appear when monochromatic light is used. The most common monochromatic aberrations are: Defocus Spherical aberration Coma Astigmatism...

order aberration as a spherical second order aberration. In this clinical context, however, spherical aberration refers to fourth-order spherical aberrations...

the aberration. Several types of aberration affect image quality, including spherical aberration, coma, and chromatic aberration. Spherical aberration occurs...

errors. These aberrations are of spherical and chromatic nature, that is, the spherical aberration coefficient Cs and the chromatic aberration coefficient...

distant objects, since spherical mirror systems, like spherical lenses, suffer from spherical aberration. Distorting mirrors are used for entertainment. They...

distortion of light at high velocities Spherical aberration, which occurs when light rays pass through a spherical lens near the edge Aberrant, a superhero...

it is a form of chromatic aberration. Coma is an inherent property of telescopes using parabolic mirrors. Unlike a spherical mirror, a bundle of parallel...

In optics, chromatic aberration (CA), also called chromatic distortion, color aberration, color fringing, or purple fringing, is a failure of a lens to...

that are blurred due to uncorrected spherical aberration. A soft focus lens deliberately introduces spherical aberration which blurs fine texture in the image...

wavelength of the electron wave, C s {\displaystyle C_{s}} = The spherical aberration of the objective lens The contrast transfer function can also be...

curved mirrors, enabling it to minimize all three main optical aberrations – spherical aberration, coma, and astigmatism. This is primarily used to enable wide...

is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically...

more or less round disc. Depending on how a lens is corrected for spherical aberration, the disc may be uniformly illuminated, brighter near the edge, or...

configurations, such as in spherical aberration corrected instruments, or TEMs using energy filtering to correct electron chromatic aberration. The optical reciprocity...

parabolic mirrors (primarily a reduction of spherical aberration with elimination of chromatic aberration) led to several proposed designs for reflecting...

(sometimes called a Bird–Jones) uses a spherical primary mirror in place of a parabolic one, with spherical aberrations corrected by sub-aperture corrector...

address different depths in the medium, and at different depths the spherical aberration induced in the wavefront is different, a method is required to dynamically...

Spherical aberration limits the resolution of a 7 mm pupil to about 3 arcminutes per line pair. At a pupil diameter of 3 mm, the spherical aberration...

of using parabolic mirrors, primarily reduction of spherical aberration with no chromatic aberration, led to many proposed designs for reflecting telescopes...

are referred to as spherical and chromatic aberrations because of their similarity to aberrations in optical lenses. Those aberrations are reduced by installing...

different dispersion, 'crown' and 'flint glass', to reduce chromatic and spherical aberration. Each side of each piece is ground and polished, and then the two...

surfaces of the reflector have different radii to correct the aberration of the spherical mirror. Light passes through the glass twice, making the overall...

complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens...

K 1 = − 1 {\displaystyle K_{1}=-1} . Thanks to that there is no spherical aberration introduced by the primary mirror. The secondary mirror, however,...

for spherical aberration in the concentrated light path, while an achromatic compound condenser corrects for both spherical and chromatic aberration. Dark...

In astronomy, aberration (also referred to as astronomical aberration, stellar aberration, or velocity aberration) is a phenomenon where celestial objects...

spherical aberration in image-forming optical systems such as catadioptric telescopes. It works by having the equal but opposite spherical aberration...

It had a fixed spherical shape with two additional suspended reflectors in a Gregorian configuration to correct for spherical aberration. Second, Arecibo's...

parallel to the axis of the dish. In contrast with spherical reflectors, which suffer from a spherical aberration that becomes stronger as the ratio of the beam...