Lens alignment and positioning method and apparatus

Details Lens alignment and positioning method and apparatus Lens alignment and positioning method and apparatus

1990-05-29

1992-01-14

Evans, F. L.

Optics: measuring and testing

Lens or reflective image former testing

Optical center, cylinder axis, or prism measuring or...

51101LG, 356153, G01B 1127

Patent

active

050804820

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.

REFERENCES:
patent: 3542476 (1970-11-01), Nord

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