Appeal No. 97-3467
Application 08/279,748
wherein there is the following relationship:
* =cos { 2 cos" X cos T - cos " }-1 2
( =tan { sin" / ( 2cos" x sinT x cosT ) }-1
(* sin( - " ) < p/f
wherein
"f" designates the focal length of the scanning optical
system;
""" the incident angle of a drawing beam upon the reflecting
surface of the deflecting mirror in a sub-scanning direction
normal to said main scanning direction;
"T" the angle of a line normal to the reflecting
surface of the deflecting mirror with respect to
a bisector of the optical axis of the scanning
optical system and the axis of an incident beam;
"p" the pitch of the aligned drawing beams;
"*" the angle of the drawing beams reflected by
the reflecting surface of the deflecting mirror
with respect to the optical axis of the scanning
optical system; and,
"(" the angle of a line connecting an image
forming point of the drawing beams reflected by
the reflecting surface on the drawing surface and
an intersecting point on the optical axis of the
scanning optical system to the drawing surface,
with respect to the sub-scanning direction.
Opinion
We do not sustain the examiner’s rejection of claims 1-4 and
4
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