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:
Aug. 28, 2001
Filed:
Nov. 14, 1995
Konica Corporation, Tokyo, JP;
Abstract
A variable focal length lens unit, including: the first, the second, and the third lens components which are aligned on the optical axis; the first, the second, and the third guiding members for respectively guiding movements of the first, the second, and the third lens components; a moving mechanism for independently moving the first, the second, and the third lens components in the direction of the optical axis so as to focus the variable focal length lens unit onto an object and zoom the variable focal length lens unit. In the lens unit, all of the first, the second, and the third lens components move in all ranges of the focal lengths, and at least one of the first, the second, and the third lens components moves in the direction by a distance being different from moving distances of other lens components when the variable focal length lens unit is focused onto the object and the variable focal length lens unit is zoomed.