Optical: systems and elements – Lens – With support
Patent
1992-10-06
1994-10-04
Ben, Loha
Optical: systems and elements
Lens
With support
359808, 359811, G02B 702
Patent
active
053531663
ABSTRACT:
An optical mounting system using interconnected annuli that support optical elements is made more accurate by forming raised engagement surfaces around the periphery of the annuli to confront and engage each other in a mounting plane perpendicular to the concentric axis of the annuli. The raised engagement surfaces are preferably formed as concentric ridge rings spaced radially inside and outside a row of screw holes used for interconnecting the annuli. The raised engagement surfaces are also preferably continuous around the peripheries of the annuli so they can be ground accurately flat and provide interannuli mounting surfaces that are resistant to deformation.
REFERENCES:
patent: 2529894 (1950-11-01), Altman et al.
patent: 3578407 (1971-05-01), Arnold et al.
patent: 3814507 (1974-06-01), Osborn et al.
patent: 4436375 (1984-03-01), Meginnis
patent: 4498737 (1985-02-01), Doggett
patent: 5249197 (1993-09-01), Kittell
Opto-Mechanical Systems Design, by Paul R. Yoder, Jr., Marcel Dekker, Inc., N.Y., 1986, including pp. 204-209.
"Precision Mechanics", by David Kittell, Short Course Notes, Stamford, Conn., 1989, presented in SPIE's International Conferences on Imaging, Fabrication, and Competitiveness in Optics, Rochester, N.Y., 1991, including pp. 14 and 45.
Hanford Keith E.
Johnson Edward A.
Ben Loha
General Signal Corporation
Nguyen Thong
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