Optisches System und Bildaufnahmevorrichtung damit

Details

Veröffentlichungs-Nr.

EP2942655

Aktenzeichen

EP15001294

Anmeldetag

30. April 2015

Veröffentlichung

4. September 2019

Erteilung

4. September 2019

Rechtsraum

EP

IPC

G02B13/26G02B15/20G02B15/163G02B15/14// G03B19/12

Abstract

Provided is an optical system, which retains enhanced optical performance at any object distance, and has compact and light-weight focus lens units. Provided is an optical system including a plurality of lens units, in which an interval between adjacent lens units changes during focusing, the optical system including: a positive lens unit arranged closest to an object side; first and second focus lens units having negative refractive powers configured to move during focusing; and an intermediate lens unit having a positive refractive power and arranged between the first and second focus lens units. The first and second focus lens units are configured to move toward an image side during focusing.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete