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Patent Searching and Data


Title:
INFRARED DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/194031
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an infrared detection device capable of suppressing a decrease in sensitivity while widening a sensing area. In the present invention, a meniscus lens (4) is dome-shaped. The meniscus lens (4) has: a first surface (41) on a lens array (3) side; and a second surface (42) on an infrared detection element (2) side. The meniscus lens (4) has a central section (5) and a peripheral section (6). The central section (5) includes a vertex (C4), which is an intersecting point of an optical axis (A4) and the first surface (41) of the meniscus lens (4). The peripheral section (6) includes an end (E4) of the first surface (41) of the meniscus lens (4). Regarding the central section (5) of the meniscus lens (4), the aplanatic point of the first surface (41) is located at the focal point (F3) of the lens array (3). Regarding the peripheral section (6) of the meniscus lens (4), the aplanatic point of the second surface (42) is located at the focal point (F3) of the lens array (3).

Inventors:
SONO TAKAHIRO
TANIGUCHI RYO
TAWARATSUMIDA SUKOYA
Application Number:
JP2019/012978
Publication Date:
October 10, 2019
Filing Date:
March 26, 2019
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (Postcode5406207, JP)
International Classes:
G01J1/02; G01J1/04; G02B3/00; G02B3/08
Foreign References:
JP2016170041A2016-09-23
JP2001272274A2001-10-05
JP2013044595A2013-03-04
JPS4716183A
JP2008216765A2008-09-18
EP1847822A12007-10-24
JP2000180717A2000-06-30
JPS59116608A1984-07-05
Other References:
"Pencil of light, Aplanatic point", vol. 35, no. 8, August 2013 (2013-08-01), pages 906 - 913
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (Postcode5300001, JP)
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