Infrared Frame Detector

Abstract: An infrared flame detector of the present invention has an infrared radiation receiving element accommodated in a package. In the infrared radiation receiving element, a set of two pyroelectric elements are arranged side by side and connected in anti-series on a pyroelectric element forming substrate. An infrared optical filter includes a filter forming substrate made of an infrared radiation transmitting material, a set of two narrowband transmission filter sections formed at positions respectively corresponding to positions of the pyroelectric elements on a first surface of the filter forming substrate and configured to transmit infrared radiation of a first selective wavelength defined as a specific wavelength of infrared radiation generated by resonance radiation of CO2 gas resulting from a flame and infrared radiation of a second selective wavelength defined as a reference wavelength different from the specific wavelength, and a broadband blocking filter section formed on a second surface of the filter forming substrate and configured to absorb infrared radiation of a wavelength longer than an upper limit of an infrared reflection band defined by the narrowband transmission filter sections. Each narrowband transmission filter section has a wavelength selection layer that is interposed between a first λ/4 multilayer film and a second λ/4 multilayer film and has an optical film thickness selected according to the selective wavelength.

Patent Information

Application #

Filing Date

26 June 2012

Publication Number

44/2013

Publication Type

INA

Invention Field

NO SUBJECT

Status

Email

Parent Application

Applicants

Panasonic Corporation

1006 Oaza Kadoma Kadoma-shi Osaka 571-8501 Japan

Inventors

1. Takayuki NISHIKAWA

c/o Panasonic Corporation 1006 Oaza Kadoma Kadoma-shi Osaka 571-8501 Japan

2. Yoshifumi WATABE

c/o Panasonic Corporation 1006 Oaza Kadoma Kadoma-shi Osaka 571-8501 Japan

3. Yuichi INABA

c/o Panasonic Corporation 1006 Oaza Kadoma Kadoma-shi Osaka 571-8501 Japan

4. Takahiko HIRAI

c/o Panasonic Corporation 1006 Oaza Kadoma Kadoma-shi Osaka 571-8501 Japan

Specification

ATTACHED

Documents

Application Documents

#	Name	Date
1	5603-CHENP-2012-AbandonedLetter.pdf	2017-10-04
1	Translation-Search Report.pdf	2012-06-30
2	5603-CHENP-2012-FER.pdf	2017-03-31
2	Priority Document.pdf	2012-06-30
3	Power of Authority.pdf	2012-06-30
3	5603-CHENP-2012 FORM-3 29-11-2012.pdf	2012-11-29
4	Form-5.pdf	2012-06-30
4	5603-CHENP-2012 CORRESPONDENCE OTHERS 29-11-2012.pdf	2012-11-29
5	Form-3.pdf	2012-06-30
5	5603-CHENP-2012 CORRESPONDENCE OTHERS 30-07-2012.pdf	2012-07-30
6	Form-1.PDF	2012-06-30
6	5603-CHENP-2012 FORM-1 30-07-2012.pdf	2012-07-30
7	Drawings.pdf	2012-06-30
7	5603-CHENP-2012 FORM-13 30-07-2012.pdf	2012-07-30
8	5603-CHENP-2012 CORRESPONDENCE OTHERS 03-07-2012.pdf	2012-07-03
8	5603-CHENP-2012 POWER OF ATTORNEY 30-07-2012.pdf	2012-07-30
9	5603-CHENP-2012 FORM-18 03-07-2012.pdf	2012-07-03
10	5603-CHENP-2012 POWER OF ATTORNEY 30-07-2012.pdf	2012-07-30
10	5603-CHENP-2012 CORRESPONDENCE OTHERS 03-07-2012.pdf	2012-07-03
11	Drawings.pdf	2012-06-30
11	5603-CHENP-2012 FORM-13 30-07-2012.pdf	2012-07-30
12	Form-1.PDF	2012-06-30
12	5603-CHENP-2012 FORM-1 30-07-2012.pdf	2012-07-30
13	Form-3.pdf	2012-06-30
13	5603-CHENP-2012 CORRESPONDENCE OTHERS 30-07-2012.pdf	2012-07-30
14	Form-5.pdf	2012-06-30
14	5603-CHENP-2012 CORRESPONDENCE OTHERS 29-11-2012.pdf	2012-11-29
15	Power of Authority.pdf	2012-06-30
15	5603-CHENP-2012 FORM-3 29-11-2012.pdf	2012-11-29
16	Priority Document.pdf	2012-06-30
16	5603-CHENP-2012-FER.pdf	2017-03-31
17	Translation-Search Report.pdf	2012-06-30
17	5603-CHENP-2012-AbandonedLetter.pdf	2017-10-04

Search Strategy

1	searchstratagy5603chenp2012_24-03-2017.pdf