D-shape laser beam projector

Details D-shape laser beam projector D-shape laser beam projector

1995-12-15

1997-05-13

Sugarman, Scott J.

Optical: systems and elements

Lens

Including a nonspherical surface

359709, G02B 1318, G02B 302

Patent

active

056298080

ABSTRACT:
An optical lens is useful as a D-shape laser beam projector. The lens consists of a known linear diverging element enabling the expansion of a laser beam into an uniform line, and a matching section of an axicon, either a symmetrical half-axicon or a non-symmetrical one, cut in a plane passing through, or nearly through, its apex. The two components, joined together in a plane of cutting of the axicon section, are positioned in a laser beam such that the beam is incident on both apices of the linear diverging element and the axicon section.

REFERENCES:
patent: 4826299 (1989-05-01), Powell
patent: 5283694 (1994-02-01), Frady

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