A lens element in which at least one face is shaped to a surface of revolution about the lens axis, including conic sections but excluding a sphere.

A glass substrate carrying a layer of deposited aluminum that has been pressure-ruled with a large number of fine equidistant grooves, using a diamond edge as a tool. Light....

A transparent optical component consisting of one or more pieces of optical glass with surfaces so curved( usually spherical) that they serve to converge or diverge the transmitted....

A piece of glass with plane parallel surfaces used to admit light into an optical system and to exclude dirt and moisture.Windows are used to isolate different physical....

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With respect to radiation, a device used to attenuate particular wavelengths or frequencies while passing others with relatively no change.

A lens having at least one surface that is formed like a portion of a cylinder.Cylindrical lenses are used to correct astigmatism in the eye, and, in rangefinders, to produce....

A transparent optical element having at least two polished plane faces inclined relative to each other, from which light is reflected or through which light is refracted.

wide-angle lens--A lens whose effective focal length ( EFL) is considerably shorter than the diagonal dimension of the image it forms.

532 nm DPSS Green Laser
473/ 457 nm DPSS Blue Laser
671 nm DPSS Red Laser
635/ 660 nm Red Diode Laser
593.5 nm Yellow DPSS Laser
556 nm visible Laser
RG/ RGB Multi-Color Laser....