lens

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Related to cylindrical lens: spherical lens
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Synonyms for lens

genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils

(metaphor) a channel through which something can be seen or understood

biconvex transparent body situated behind the iris in the eye

electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons

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.
On the tip of all micro barcode readers is a cylindrical lens which is the core of this technology.
Each parallax image displayed on the LCD is horizontally compressed into a vertical slit by a cylindrical lens. The beam of the slit and the reference beam form an interference pattern, which is then recorded on the photo-sensitive material on the glass substrate.
Turning the lens cell rotates the axis of the cylindrical lens and changes the width of the spectrum.
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