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:
May. 09, 2000
Filed:
Oct. 24, 1997
Applicant:
Inventor:
Shingo Hayakawa, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359557 ; 359684 ; 359685 ; 359690 ;
Abstract
A zoom lens includes, in order from as object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, a fourth lens having a positive or negative refractive power, a fifth lens unit having a negative refractive power, and a sixth lens unit having a positive refractive power, and a sixth lens unit having a positive refractive power, wherein the separations between the lens units are varied to effect zooming. Further, the fifth lens unit is arranged to move in directions substantially perpendicular to the optical axis to compensate vibrations.