Appeal No. 95-3797
Application 07/975,764
Appellant’s claimed subject matter is a real image
viewfinder which includes a first and second optical path.
Claim 1 is exemplary of the subject matter on appeal and
recites:
1. A real image viewfinder for use in a camera, the
viewfinder having an objective lens, an image reflecting optic
unit having first, second, third, and fourth reflecting
surfaces, and an eyepiece lens that define a first optical
path in which a first real image plane is located between the
objective lens and the eyepiece lens, further having a movable
variator lens that varies the magnification of the viewfinder
as the variator lens is moved, wherein:
the second and third reflecting surfaces of the
image reflecting optic unit are movable to compensate for
variation in the position of the first real image plane with
respect to the eyepiece lens such that the first real image
plane moves simultaneously with movement of the reflecting
surfaces and the fourth reflecting surface is adapted to
define a second optical path through the viewfinder such that
a second real image plane is fixedly located at a focal plane
of the eyepiece lens and can be viewed through the eyepiece
lens, said real image viewfinder further including a display,
located at the second real image plane, that displays data
items that can be viewed through the eyepiece lens.
THE REFERENCES
The following references were relied on by the
examiner:
Asano et al. (Asano) 4,165,932 Aug. 28, 1979
Bentensky et al. (Bentensky) 5,155,517 Oct. 13,
1992
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