Title:
遮光シートを備えた受動型赤外線検知装置
Document Type and Number:
Japanese Patent JP7350227
Kind Code:
B2
Abstract:
To provide a light shielding sheet that has a simple structure and can set detection areas having all patterns, and a passive infrared detection device using the light shielding sheet, in passive infrared detection devices in which a detection area is formed by a lens which is divided into multiple sections vertically.SOLUTION: A light shielding sheet 10 has a substantially rectangular shape, and has perforations P1 to P3 or folding lines Q1 and Q2 at intervals that allow light shielding for one detection zone. Protrusions are provided at equal intervals in front of a main body of a passive infrared detection device, a protrusion is disposed for each detection zone, and the protrusion is inserted into and attached to an attachment hole 11 of the light shielding sheet.SELECTED DRAWING: Figure 1
Inventors:
Genso Takeuchi
Application Number:
JP2019193986A
Publication Date:
September 26, 2023
Filing Date:
October 25, 2019
Export Citation:
Assignee:
Takenaka Engineering Co., Ltd.
International Classes:
G01J1/02; G01J1/06
Domestic Patent References:
| JP2005201754A | ||||
| JP2004333209A | ||||
| JP2007323884A | ||||
| JP2011100020A | ||||
| JP2128534U | ||||
| JP6337228A | ||||
| JP7105802A | ||||
| JP2006198298A |
Foreign References:
| CN101672156A |
Previous Patent: Disaster prevention/disaster mouse
Next Patent: Building board and method for manufacturing building board
Next Patent: Building board and method for manufacturing building board