Title:
LIGHT-RECEIVING DEVICE AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/149333
Kind Code:
A1
Abstract:
In order to efficiently receive a spatial optical signal arriving from a discretionary direction, the present invention comprises: a condensing lens for receiving the spatial optical signal; a beam control element for emitting an optical signal derived from the spatial optical signal condensed by the condensing lens toward a prescribed region; and a light-receiving element for receiving the optical signal, a light-receiving part being disposed facing the prescribed region.
Inventors:
TAKATA KOYA (JP)
MIZUMOTO HISASHI (JP)
OKUMURA FUJIO (JP)
MIZUMOTO HISASHI (JP)
OKUMURA FUJIO (JP)
Application Number:
PCT/JP2021/039348
Publication Date:
July 14, 2022
Filing Date:
October 25, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B10/112; H01L31/0232; H01L31/10; H04B10/67
Foreign References:
| JPH0851400A | 1996-02-20 | |||
| JPS61128639A | 1986-06-16 | |||
| JP2004096155A | 2004-03-25 | |||
| JPH1051378A | 1998-02-20 | |||
| JP2015184581A | 2015-10-22 | |||
| JP2006003636A | 2006-01-05 | |||
| JP2005274305A | 2005-10-06 |
Attorney, Agent or Firm:
KITAJIMA Hiroshi et al. (JP)
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