Title:
OPTICAL SYSTEM, IMAGING DEVICE, AND IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/044398
Kind Code:
A1
Abstract:
An optical system (2) that forms an image at a first image formation position (P1) by first light (L11) in a visible range, and forms an image at a second image formation position (P2) by second light (L12) in a far-infrared range is provided with a lens group (3) and an optical division element (21). The lens group has an optical axis extending from the front on which the first and the second light are incident to the rear from which the first and the second light are emitted, the focal length of the first light, and the focal length of the second light. The optical division element is disposed at the rear of the lens group, divides the first and the second light from the lens group from each other, guides the first light to the first image formation position, and guides the second light to the second image formation position. The lens group comprises lens elements that transmit the first and the second light such that the first image formation position corresponds to the focal length of the first light, and separately from the first image formation position, the second image formation position corresponds to the focal length of the second light.
Inventors:
KUROSAKI RYO
NANBA TORU
MURATA JUN
SUZUKI TETSUYA
NANBA TORU
MURATA JUN
SUZUKI TETSUYA
Application Number:
PCT/JP2021/010288
Publication Date:
March 03, 2022
Filing Date:
March 15, 2021
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
G02B13/14
Domestic Patent References:
| WO2020071071A1 | 2020-04-09 |
Foreign References:
| JP2014185917A | 2014-10-02 | |||
| CN109407273A | 2019-03-01 | |||
| CN108761733A | 2018-11-06 | |||
| JPS5969711A | 1984-04-20 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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