Anamorphotic attachment for a projection objective
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United States of America Patent
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Aug 16, 1994
Grant Date -
N/A
app pub date -
Aug 17, 1992
filing date -
Aug 17, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An anamorphotic attachment for a projection objective has front and rear lens groups which have vertical diameters greater than their horizontal diameters and received respectively in an inner mounting tube and an outer mounting tube, the latter being connectable to the projection objective at its rear end. The inner mounting tube is fully received in the outer mounting tube and has thereon a shifting screw for moving the inner mounting axially within the outer mounting and a clamping screw actuatable to lock the two mounting tubes together, both accessible at the front end of the inner mounting tube within the outer mounting tube.
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