Patent
1983-02-22
1985-06-25
Arnold, Bruce Y.
G05D 102
Patent
active
045250413
ABSTRACT:
An arrangement for use in positioning an optical image with respect to an optical axis includes a plane optical element which is tiltable through rotation of a first rotatable ring member to deflect an image on the axis in a first plane which includes the axis and a second plane optical element which is tiltable through rotation of a second rotatable ring member to deflect the image in a second plane which includes the axis and is at an angle to the first plane.
REFERENCES:
patent: 3776995 (1973-12-01), Little, Jr.
Jenkins et al., Fundamentals of Optics, McGraw-Hill, 1957, 3rd Ed. pp. 19-20.
Arnold Bruce Y.
Precision Grinding Limited
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