Invention Grant
US08576501B2 Wide-angle optical system, image pickup lens device, monitor camera, and digital apparatus
有权
广角光学系统，摄像镜头装置，监视摄像机和数字设备
- Patent Title: Wide-angle optical system, image pickup lens device, monitor camera, and digital apparatus
- Patent Title (中): 广角光学系统，摄像镜头装置，监视摄像机和数字设备
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Application No.: US12679703Application Date: 2008-09-22
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Publication No.: US08576501B2Publication Date: 2013-11-05
- Inventor: Keiji Matsusaka , Toru Nakatani
- Applicant: Keiji Matsusaka , Toru Nakatani
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Cozen O'Connor
- Priority: JP2007-254791 20070928
- International Application: PCT/JP2008/067075 WO 20080922
- International Announcement: WO2009/041382 WO 20090402
- Main IPC: G02B3/02
- IPC: G02B3/02 ; G02B13/18 ; G02B9/06
Abstract:
A wide-angle optical system comprises a front lens group (11), and a rear lens group (12), with an aperture stop (13) interposed between. The front lens group (11) includes at least two negative lenses (111, 112) and at least one positive lens (113). At least one of the positive lenses included in the front lens group (11) has at least one aspherical surface. The front lens group (11) satisfies the conditional expression vdp
Public/Granted literature
- US20100194853A1 WIDE-ANGLE OPTICAL SYSTEM, IMAGE PICKUP LENS DEVICE, MONITOR CAMERA, AND DIGITAL APPARATUS Public/Granted day:2010-08-05
Information query
IPC分类:
| G | 物理 |
| G02 | 光学 |
| G02B | 光学元件、系统或仪器 |
| G02B3/00 | 简单或复合透镜 |
| G02B3/02 | .具有非球面的（G02B3/10优先） |
