Automated lensometer

Details Automated lensometer Automated lensometer

1992-04-10

1994-07-19

Evans, F. L.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356127, G01B 900

Patent

active

053313941

ABSTRACT:
An automated lensometer including a mounting device to support and center a lens to be tested along an axis. First and second arrays of light source patterns are positioned at different optical distances from the mounted lens and are projected along the axis through the lens. The images of the projected patterns are captured and stored in a camera imaging device located along the axis. A comparison of the patterns by a processor allows derivation of refractive power of the lens.

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