Invention Grant
- Patent Title: Small refractive zoom lens optical system
- Patent Title (中): 小折射变焦镜头光学系统
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Application No.: US12071066Application Date: 2008-02-14
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Publication No.: US07830621B2Publication Date: 2010-11-09
- Inventor: Jae Cheol Jeong , Moon Hyun Kim , Jin Hee Kang
- Applicant: Jae Cheol Jeong , Moon Hyun Kim , Jin Hee Kang
- Applicant Address: KR Suwon
- Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee Address: KR Suwon
- Priority: KR10-2007-0015399 20070214
- Main IPC: G02B9/34
- IPC: G02B9/34
Abstract:
A zoom lens optical system includes: a first lens group that is provided close to an object, has a negative refractive power in total, and includes an optical part having a surface that reflects light; a second lens group that has a negative refractive power in total; an iris; a third lens group that has a positive refractive power in total; and a fourth lens group that has a positive refractive power in total.
Public/Granted literature
- US20080204893A1 Small refractive zoom lens optical system Public/Granted day:2008-08-28
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