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 illumination module, a light sheet is created using a cylindrical lens to focus a collimated 532 nm laser beam.
When the control beam is focused by a cylindrical lens, it is easy from Figure 5(b) that its spatial intensity distribution is changed.
Spherical lens, cylindrical lens, axis, interpupillary distance (IPD), and vision in each tested eye of the same subject were measured by automatic optometry and comprehensive optometry, with repetition of all measurements in the menstrual cycle of the 2 [sup]nd or 3 [sup]rd days, 14 [sup]th days, and 28 [sup]th days, respectively.
The sensor uses a special cylindrical lens that widens the laser spot to what appears to the human eye to be an oval shape, though the actual shape is a very small line.
To compensate for such elements, an optical device has been improvised which consists of cylindrical lens, with narrow leaner focus in which the fluorescent light coming out of the intensifying screen is converged.

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