Image forming optical system for semiconductor laser

Details Image forming optical system for semiconductor laser Image forming optical system for semiconductor laser

1979-04-25

1981-03-03

Clark, Conrad J.

Illumination

Supported by vehicle structure

Condition responsive

350 65, 350433, 362259, 331 945H, G02B 300

Patent

active

042537355

ABSTRACT:
An image forming optical system for a semiconductor laser which forms an image of a semiconductor laser as a light source through an image forming lens, wherein the image forming lens is so disposed that it maintains the original divergent point of the semiconductor laser in the vertical direction and the image forming plane in a conjugative relationship, and that the image forming magnification .beta. in the vertical direction satisfies the following relationship of .beta.=.gamma..multidot.sin .theta..sub.O .multidot.Feff (1.2.ltoreq..gamma..ltoreq.3.0) based on an angle .theta..sub.O, at which the intensity of orientation characteristic in the vertical direction assumes 1/e.sup.2 at the center and an effective F-number Feff at the image side.

REFERENCES:
patent: 3407294 (1968-10-01), Hill
patent: 3805347 (1974-04-01), Collins et al.
patent: 4185891 (1980-01-01), Kaestner

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