Panoramic zoom lens assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 7, 1984
Grant Date -
N/A
app pub date -
Jul 30, 1981
filing date -
Jul 30, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A panoramic zoom lens assembly of the type including a reflector lens spaced from the image plane of an optical recording device such as a film camera or video camera is disclosed. The zoom lens assembly includes a cylindrical housing having a transparent sidewall portion and an opaque sidewall portion with a reflector mounted in optical communication with the transparent sidewall zone. The reflector is provided with a symmetrical, reflective surface of revolution the axis of which is transverse to the image plane. An annular, objective lens assembly is mounted within the housing in a fixed position surrounded by the opaque housing sidewall portion. An intermediate annular lens is mounted within the housing for reciprocal movement along the reflector axis between the objective lens and the image plane. Displacement of the movable annular lens varies the focal length of the overall lens assembly. In a preferred embodiment, a third annular lens is mounted in a fixed position between the movable annular lens and the image plane whereby the assembly can be mounted directly onto a camera housing.
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Cited Art Landscape
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