Patent
1980-06-27
1981-09-29
Gonzales, John
G03B 1500
Patent
active
042919622
ABSTRACT:
In combination with a camera having a housing enclosing a film unit, a viewing window and a lens assembly including a normally enclosed shutter and a lens, a lens mask is removably mounted upon the lens assembly and includes an upright opaque end face which overlies and blocks one-half of the lens upon one side of a vertical plane passing through its optical axis. The image of a first object viewed from one side of the camera viewing window passes through the unmasked part of the lens and exposes one-half of the film unit. The mask is reversible to block the other one-half of the lens so that a second object viewed from the other side of the viewing window will expose the other half of the film unit.
Method which comprises masking one side half of a camera lens and positioning the camera with a first object centered within one side half of the viewing window and exposing the image upon one side half of the film unit. Method includes successively masking the other side half of the lens and positioning the camera with a second object centered within the other side of the viewing window and thereafter exposing the image of the second object onto the other side half of the film unit.
REFERENCES:
patent: 678490 (1901-07-01), Hug
patent: 3135184 (1964-06-01), Siebenberg
patent: 4012748 (1977-03-01), Lemanski
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