Title:
ズームレンズ系
Document Type and Number:
Japanese Patent JP5061032
Kind Code:
B2
Abstract:
A zoom lens system includes a positive first lens group, a negative second lens group, and a rear lens group which is provided on the image side of the negative second lens group, and has a combined positive refractive power, in this order from the object; and the zoom lens system satisfies the following conditions: 5.0
Inventors:
Masakazu Koori
Application Number:
JP2008143018A
Publication Date:
October 31, 2012
Filing Date:
May 30, 2008
Export Citation:
Assignee:
Pentax Ricoh Imaging Co., Ltd.
International Classes:
G02B15/20; G02B13/18
Domestic Patent References:
| JP2007093975A | ||||
| JP2001330777A | ||||
| JP11352402A | ||||
| JP2004233750A |
Attorney, Agent or Firm:
Kunio Miura