Title:
PANORAMIC ANNULUS OPTICAL IMAGING APPARATUS HAVING DUAL CHANNELS AND COMMON IMAGE PLANE
Document Type and Number:
WIPO Patent Application WO/2021/159715
Kind Code:
A1
Abstract:
A panoramic annulus optical imaging apparatus having dual channels and a common image plane, comprising a panoramic annulus optical system and a side-view-field telescopic optical system. An object contour around the optical system is detected by using a cylindrical large-view-field panoramic annulus optical system, and detail features of a target object is observed by using the side-view-field telescopic optical system; the two systems share one single detector; the front half portions of two separated light paths pass through a semi-transparent semi-reflective mirror (5) and are then transmitted into the same subsequent lens group (6) to reach a detector target plane (7) for imaging; the panoramic annulus optical system forms an annulus imaging region (12) for imaging on the image plane; the telescopic optical system performs imaging in a central circular imaging region (13) at the center of the annulus on the image plane; and the two regions (12, 13) do not interfere with each other. This apparatus achieves target detection in a large view field and detail zooming of a key target, thus facilitating the detection and tracking of a target object (P). In addition, the use of a common optical path improves the imaging utilization rate for the image plane of the system and reduces the axial size of the entire optical system. The apparatus has a compact structure and is applicable to a hostile working environment.
Inventors:
BAI JIAN (CN)
WANG JIA (CN)
WANG JIA (CN)
Application Number:
PCT/CN2020/117970
Publication Date:
August 19, 2021
Filing Date:
September 27, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G02B13/06; G02B17/08
Domestic Patent References:
| WO2020129278A1 | 2020-06-25 |
Foreign References:
| CN102508354A | 2012-06-20 | |||
| CN102401988A | 2012-04-04 | |||
| CN111190274A | 2020-05-22 | |||
| CN102928962A | 2013-02-13 | |||
| JP2011257630A | 2011-12-22 | |||
| CN205691872U | 2016-11-16 | |||
| CN203981954U | 2014-12-03 | |||
| CN109462718A | 2019-03-12 | |||
| CN109709661A | 2019-05-03 | |||
| CN110824669A | 2020-02-21 |
Attorney, Agent or Firm:
FANG & ASSOCIATES (CN)
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