Lens alignment and positioning method and apparatus
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United States of America Patent
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-
Jan 14, 1992
Grant Date -
N/A
app pub date -
May 29, 1990
filing date -
May 29, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for aligning and positioning a lens such that the optical and/or cylinder axis of the lens is precisely aligned with a fixture for the purpose of assembly or further mechanical operations such as machining and polishing. According to another aspect of the invention, the lens apex is precisely positioned a constant distance from a reference point. In order to implement the above, a method and apparatus is disclosed for optically aligning and positioning lenses using digitzed video imaging, an X-Y-Z micron stage and a microprocessor (or computer) capable of performing image analysis.
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