Title:
ACOUSTIC CAMERA HAVING EXPANDABLE ACOUSTIC WAVE RECEIVING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/230583
Kind Code:
A1
Abstract:
The present invention relates to an acoustic camera having an expandable acoustic wave receiving structure. The acoustic camera is characterized by comprising a front protective part which covers the front of a plurality of acoustic sensors and is made of a rigid plastic or metal material having a flat plate shape or a curved plate shape protruding forward. The front protective part is equipped with a plurality of acoustic wave input grooves (110), and MEMS acoustic sensors are respectively positioned at rearward positions corresponding to the acoustic wave input grooves (110). The acoustic wave input grooves (110) are positioned in front of the MEMS acoustic sensors (S), form spaces for receiving acoustic waves or ultra acoustic waves, and either have a shape in which the width or diameter (D2) of an outer exposed portion is greater than the width or diameter (D1) of an inner sensor-adjacent portion, or an expandable shape or horn shape in which the cross-sectional area increases continuously from the inner sensor-adjacent portion to the outer exposed portion.
Inventors:
KIM YOUNG-KI (KR)
KIM IN-KEON (KR)
JEONG WOOK-JIN (KR)
JANG JI_HO (KR)
LEE GANG-HYEN (KR)
KIM IN-KEON (KR)
JEONG WOOK-JIN (KR)
JANG JI_HO (KR)
LEE GANG-HYEN (KR)
Application Number:
PCT/KR2021/005776
Publication Date:
November 18, 2021
Filing Date:
May 09, 2021
Export Citation:
Assignee:
SM INSTR CO LTD (KR)
KOREA RES INST STANDARDS & SCI (KR)
KOREA RES INST STANDARDS & SCI (KR)
International Classes:
H04R1/02; H04R1/30
Foreign References:
| KR101471300B1 | 2014-12-10 | |||
| KR20140121623A | 2014-10-16 | |||
| KR20180072655A | 2018-06-29 | |||
| KR20180120050A | 2018-11-05 | |||
| KR20170057584A | 2017-05-25 |
Attorney, Agent or Firm:
PATENT LAW FIRM MYEONGJANG (KR)
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