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Wavelength: 546.1 nm
... concave cylindrical surface mirror is required. 1、Why is cylindrical lens used? A cylindrical lens is typically used to focus, condense or expand incoming light. A cylindrical lens ...
... lasers produce astigmatic beams. Since most laser applications require symmetric Gaussian beams, astigmatic beams must be corrected. The usual type of optic used in anamorphic beam expanders and elliptical ...
Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, stretching a point of light into a line, they are widely used in bar code scanning, projection optics systems, laser measurement ...
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