Laser astigmatism compensation

Details Laser astigmatism compensation Laser astigmatism compensation

1991-05-30

1993-08-24

Dzierzynski, Paul M.

Optical: systems and elements

Lens

Anamorphic

359710, 369112, 369122, G11B 714

Patent

active

052394140

ABSTRACT:
In an optical system including a laser diode with astigmatism such that the apparent source position in two orthogonal axes each normal to the beam direction differ, a beam prism expander and a collimating lens positioned between the diode and expander, the collimated lens is positioned relative to the laser such that the radius of curvature of the light beam exiting the beam expander in the two axes is identical.

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patent: 4768184 (1988-08-01), Reno
patent: 4768184 (1988-08-01), Reno
patent: 4872747 (1989-10-01), Jalkio et al.
patent: 4948233 (1990-08-01), Maruyama

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