Image forming optical system for semiconductor laser
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United States of America Patent
Stats
-
Mar 3, 1981
Grant Date -
N/A
app pub date -
Apr 25, 1979
filing date -
Apr 28, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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