cylindrical lens


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Related to cylindrical lens: spherical lens

cylindrical lens

[si′lin·drə·kəl ′lenz]
(optics)
A lens one or both of whose surfaces are a portion of a circular cylinder.
References in periodicals archive ?
In the same way, cylindrical lens, spherical lens, IPD, and visual acuity were detected by the outpatient department of ophthalmology based on automatic optometry method and comprehensive optometry detection.
Through using Powell lenses, customers could get a much even energy distribution along the whole laser line than rod lens or cylindrical lens does.
Here's the scoop: Doctors at the University of Miami (or Miameye) removed one tooth--an eye tooth, naturally--from a nearly blind patient, sculpted the tooth into a table-shaped platform, drilled a hole in the middle to hold a 1/8-inch cylindrical lens, and then implanted the whole package into a pouch in the patient's skin for several months to allow it to fuse into one unit.
Inside this roller is a UV lamp, with a cylindrical lens to focus the UV light into a line, shining through the cylinder and master as the latter is in contact with the hologram material.

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