Aspheric lens for simultaneously collimating and shaping a laser

Details Aspheric lens for simultaneously collimating and shaping a laser Aspheric lens for simultaneously collimating and shaping a laser

1994-03-30

1996-11-05

Nelms, David C.

Optical: systems and elements

Lens

Including a nonspherical surface

359641, 359651, G02B 1318, G02B 300

Patent

active

055723675

ABSTRACT:
An outwardly divergent and elliptic input laser beam is converted into a collimated and circular laser beam using a single aspheric lens. An input surface of the aspheric lens has a convex hyperbolic spherical cross-sectional surface in a vertical direction normal to an optical axis and a concave spherical cross-sectional surface in a horizontal direction normal to the optical axis. An output surface of the aspheric lens has a planar cross-sectional surface in the vertical direction normal to the optical axis and a convex elliptical cross-sectional surface in the horizontal direction normal to the optical axis.

REFERENCES:
patent: 4842388 (1989-06-01), Tanaka
patent: 4863248 (1989-09-01), Saka
patent: 4979807 (1990-12-01), Matsuoka
patent: 5002374 (1991-03-01), Ishibai
patent: 5020888 (1991-06-01), Ishibai
patent: 5373395 (1994-12-01), Adachi

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