spherical lens


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spherical lens

[′sfir·ə·kəl ′lenz]
(optics)
A lens whose surfaces form portions of spheres.
References in periodicals archive ?
75DC) were fitted binocularly with a spherical lens and its toric counterpart.
The earliest microscopes used spherical lenses to magnify their subjects, which is why most of these rudimentary tools relied on two optical components; a single spherical lens focuses light poorly, but that fuzziness can be corrected by supplementing the first lens with another piece of optical glass.
Acute angle closure may result from pupillary block caused by the forward movement of the spherical lens or anterior chamber luxation of the lens due to weak and long zonules.
Main outcomes of the eye examination included spherical lens, cylindrical power, axis, interpupillary distance (IPD), and vision.
In the previous section, we used the approximate analytical formulas (1) and (13) to design the spherical lens and to obtain the cells' dimensions.
Nikolic, "Radar cross-section studies of spherical lens reflectors," Progress In Electromagnetics Research, Vol.
Aiming to make a circuit that could fit closely to a spherical lens, the investigators used ordinary micro-circuit-fabrication methods to pattern arrays of silicon-based transistors onto a flat sheet of polyimide plastic that they then deformed to give it a bowl-like shape.
Rather than butt two fiber ends together, expanded beam technology protects and seals each fiber face and ferrule behind a spherical lens.
In the eye, Vesalius placed a spherical lens in the center of the orbit and believed it was the organ of vision.
In the second half of fiscal 1999, it expects to complete the European toric launch and begin the rollout of two new products: Frequency 55 AB(TM), a spherical lens with a new optical design that can enhance visual clarity in selected patients, and Frequency 55 UV(TM), which contains an ultra violet light blocking agent.
1 monofocal, Acrylic, Monocoque, Monocoque lens 2 monofocal, Hydrophilic-hydrophobic acrylate, Single-point, Spherical lens 3 monofocal, Hydrophilic-hydrophobic acrylate, Single point lens 4 monofocal, Acnetic, Acrylic, Hydrophobic, Aspheric, Single-lens lens 5 flexible hind muzzle lens, Hydrophobic 6 flexible single-piece, Monofocal, Hind-glass lens, Hydrophilic / 26% h2o /
The MarqMetrix TouchRaman BallProbe with patented spherical lens allows users to "touch the sample, take the measurement" without any sample prep or handling.

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