The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 1994
Filed:
Mar. 22, 1993
Peter A Newman, Rochester, NY (US);
William L Burnham, Leroy, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A zoom lens drive mechanism, for translationally driving and positionally locating a lens subgroup of a zoom lens to a zooming position along an optical axis of the zoom lens, comprises a base ring member having an aperture concentrically defined about the optical axis of the zoom lens and a drive ring member rotatably mounted on the base member for concentric rotation about the optical axis with axial constraint. A translatable lens subgroup ring member is suspended concentrically from the base and drive ring members by means of rods independently coupled at first ends thereof to the base and drive ring members and joined at second ends thereof to a common pivot point on the translatable ring member. Alternative split ball joint arrangements are described for coupling the suspension rods to the translatable ring member.