Optics: measuring and testing – Lens or reflective image former testing – Optical center – cylinder axis – or prism measuring or...
Patent
1994-12-21
1997-06-10
Gonzalez, Frank
Optics: measuring and testing
Lens or reflective image former testing
Optical center, cylinder axis, or prism measuring or...
356124, G01B 900
Patent
active
056381697
ABSTRACT:
An apparatus for turning the external circumference of an optical lens mount, a collimator is optically aligned with the turning axis (y-y). A fixture is mounted on the apparatus to accommodate the lens assembly. The fixture provides a translatory adjustment motion transverse to the axis (y-y) and a pivot motion about a universal joint. Electromechanical adjustment actuators operatively engage the fixture to move the optical axis of the lens assembly into alignment with the axis (y-y). An electronic deviation control system converts the light output of the collimator into an axis deviation signal which is encoded according to the rotary position of the lens assembly to generate translatory and pivot motion adjustment signals which control the action of the adjustment actuators. The electronic deviation control system consists of a continuous position sensing silicon photodetector which generates the deviation signal, a microprocessor controller receives the deviation signal and encodes it with a rotary position indicator and sends an adjustment signal to the Electromechanical adjustment actuators.
REFERENCES:
patent: 3544796 (1970-12-01), Baker
Devenyi Gabor
Hollmann Joerg W.
Denson-Low Wanda K.
Gonzalez Frank
Hughes Electronics
Kim Robert
Sales Michael W.
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