JPS641920A - Pyroelectric type infrared detector - Google Patents

Pyroelectric type infrared detector

Info

Publication number
JPS641920A
JPS641920A JP62155339A JP15533987A JPS641920A JP S641920 A JPS641920 A JP S641920A JP 62155339 A JP62155339 A JP 62155339A JP 15533987 A JP15533987 A JP 15533987A JP S641920 A JPS641920 A JP S641920A
Authority
JP
Japan
Prior art keywords
mirror
area
differential output
fet
type infrared
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62155339A
Other languages
Japanese (ja)
Other versions
JPH011920A (en
Inventor
Noboru Masuda
Tetsuo Osawa
Kenji Tomaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP62-155339A priority Critical patent/JPH011920A/en
Priority claimed from JP62-155339A external-priority patent/JPH011920A/en
Publication of JPS641920A publication Critical patent/JPS641920A/en
Publication of JPH011920A publication Critical patent/JPH011920A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To set a detection zone for obtaining a differential output at the front of a condenser mirror, by forming a non-mirror surface partly on a reflection mirror surface of the condenser mirror to reduce the quantity of light reflected.
CONSTITUTION: A parabolic mirror 1 as the condenser mirror has a reflection mirror surface 1a and a non-mirror surface part 1b to reduce the quantity of reflected lights of incident infrared rays. A pyroelectric type infrared sensor 2 is located near the focus f1 of the parabolic mirror 1 and pyroelectric type infrared elements 3a and 3b are located on both sides of an optical axis facing the parabolic mirror 1. As an object to be detected shifts to a detection zone of an area 2 from an area 1, a differential output appears at an FET for amplifying differential outputs of the elements 3a and 3b and infrared rays from the object being detected are detected. With further shifting of the object, no differential output appears at the FEt in an area 3. With the entry of the object into an area 6, a differential output appears at the FEt.
COPYRIGHT: (C)1989,JPO&Japio
JP62-155339A 1987-06-24 Pyroelectric infrared detector Pending JPH011920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-155339A JPH011920A (en) 1987-06-24 Pyroelectric infrared detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-155339A JPH011920A (en) 1987-06-24 Pyroelectric infrared detector

Publications (2)

Publication Number Publication Date
JPS641920A true JPS641920A (en) 1989-01-06
JPH011920A JPH011920A (en) 1989-01-06

Family

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016509237A (en) * 2013-03-05 2016-03-24 メジャメント スペシャリティーズ， インコーポレイテッド Systems and methods for multiplexed and buffered miniaturized sensor arrays

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016509237A (en) * 2013-03-05 2016-03-24 メジャメント スペシャリティーズ， インコーポレイテッド Systems and methods for multiplexed and buffered miniaturized sensor arrays
US10001428B2 (en) 2013-03-05 2018-06-19 Measurement Specialties, Inc. System and method for multiplexed and buffered sensor arrays

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