Single aspherical plano-convex collimator lens

Details Single aspherical plano-convex collimator lens Single aspherical plano-convex collimator lens

1993-07-28

1994-12-06

Sugarman, Scott J.

Optical: systems and elements

Lens

Including a nonspherical surface

359718, G02B 1318

Patent

active

053716329

ABSTRACT:
A collimator lens system has a single plano-convex lens and a plane parallel plate. An aspherical surface of the single plano-convex lens is convex to the magnification-larger-than-unity side. The collimator lens system fulfills the following conditions: ##EQU1## where n represents a refractive index of the single plano-convex lens, d represents an axial thickness of the single plano-convex lens, f represents a focal length of the single plano-convex lens and dg represents a thickness of the plane parallel plate.

REFERENCES:
patent: 3544198 (1970-12-01), De Metz et al.
patent: 4592627 (1986-06-01), Smid
patent: 4613212 (1986-09-01), Norikazu
patent: 4657352 (1987-04-01), Suda et al.
patent: 4863248 (1989-09-01), Saka

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