Title: Zoom lens
Application Number: 95116205 Application Date: 1995.09.04
Publication Number: 1147097 Publication Date: 1997.04.09
Approval Pub. Date: 2001.07.11 Granted Pub. Date: 2001.07.11
International Classifi-cation: G02B15/16
Applicant(s) Name: Canon K.K. Address:
Inventor(s) Name: Yoshinori Itoh
Attorney & Agent: MA HAO
Abstract:
    A zoom lens comprising, from front to rear, a first lens unit of positive refractive power and a second lens unit of negative refractive power, zooming being performed by varying a separation between the first lens unit and the second lens unit, wherein the first lens unit has at least two positive lenses and at least two negative lenses, and wherein the distance for the telephoto end from the first lens surface to the last lens surface, the diagonal length of the effective area of an image frame, the shortest and longest focal lengths of the entire system are appropriately determined.
Time: 11