Optical apparatus

Details Optical apparatus Optical apparatus

G - Physics

02

F

345/60, 352/32.2

G02F 1/00 (2006.01) G02B 27/00 (2006.01) G11B 7/08 (2006.01) G11B 7/12 (2006.01)

Patent

CA 1204199

ABSTRACT OF THE DISCLOSURE An optical apparatus is provided which uses a semiconductor laser which has different focal points of oscillated light rays therefrom in the junction plane and in a plane perpendicular thereto, so as to generate an astigmatism. At least one plane-parallel body of a predetermined thickness and capable of transmitting light is arranged in the optical path of the light rays from the semiconductor laser such that a normal vector thereof is inclined by a predetermined angle with respect to the optical axis. The plane-parallel body thus corrects the astigmatism.

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