JPS60125542U

JPS60125542U - infrared sensor

Info

Publication number: JPS60125542U
Application number: JP1316384U
Authority: JP
Inventors: 浜田　章; 大平　敬一; 村田　隆暎
Original assignee: 呉羽化学工業株式会社
Priority date: 1984-02-03
Filing date: 1984-02-03
Publication date: 1985-08-23
Also published as: JPH0438268Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案者らが先に提案した赤外線センサの正断
面図、第２図は焦電素子の積層構造を示す厚さ方向断面
図、第３図は従来の赤外線センサの頂部構造を示す部分
正断面図、第４図は第３図に示した赤外線センサの不都
合性を説明するための対応模式断面図、第４図および第
６図はそれぞれ本考案の実施例にかかる赤外ｉセンサの
頂部構造を示す部分正断面図そある。１・・・・・・金属ケース、１ａ・・・・・・赤外線透
過窓、１ｂ・・・・・・下端かしめ部、１ｄ・・・・・
・頂壁の中央突出部分における中央開口の周囲部分、１
ｅ・・・・・・頂壁周縁部、１ｆ・・・・・・赤外線透
過窓材収容部、１ｇ、１ｈ・・・・・・赤外線透過窓材
固定用突出部、２，２ａ。２ｂ・・・・・・赤外線透過窓材、３・・・・・・上側
導電体リング、４・・・・・・焦電素子、４ａ・・・・
・・焦電体膜、４ｂ・・・・・・表面電極、４ｃ・・・
・・・裏面電極、５・・・・・・下側導電体リング、６
・・・・・−ＦＥＴ　（６ａ・・・・・・ゲートリード
　−線）、７・・・・・・絶縁部材、８・・・・・・リ
ード線。Figure 1 is a front cross-sectional view of the infrared sensor previously proposed by the inventors, Figure 2 is a cross-sectional view in the thickness direction showing the laminated structure of the pyroelectric element, and Figure 3 is the top structure of a conventional infrared sensor. FIG. 4 is a corresponding schematic sectional view for explaining the disadvantages of the infrared sensor shown in FIG. 3, and FIGS. There is a partial front cross-sectional view showing the top structure of the sensor. 1...Metal case, 1a...Infrared transmitting window, 1b...Lower end caulking part, 1d...
・The surrounding area of the central opening in the central protruding part of the top wall, 1
e...Top wall peripheral portion, 1f...Infrared transmitting window material accommodating portion, 1g, 1h...Infrared transmitting window material fixing protrusion, 2, 2a. 2b... Infrared transmitting window material, 3... Upper conductor ring, 4... Pyroelectric element, 4a...
...Pyroelectric film, 4b...Surface electrode, 4c...
... Back electrode, 5 ... Lower conductor ring, 6
......-FET (6a... gate lead - wire), 7... insulation member, 8... lead wire.

Claims

[Claims for Utility Model Registration] 1. An infrared transmitting window material, a conductive ring, and a pyroelectric film are laminated in this order near the infrared transmitting window in a metal case with an infrared transmitting window opened at the top. The metal case has a central portion of its top wall that protrudes upward including the opening, an infrared transmitting window material accommodating portion is formed below the opening, and an inner wall surface of the peripheral edge of the top wall that is in contact with the top surface of the conductor ring. An infrared sensor that comes into contact with an infrared sensor, characterized in that a protrusion for fixing an infrared transmitting window material is formed on the inner surface surrounding an opening in the center of a protruding top wall. 2. The infrared sensor according to claim 1, wherein the infrared transmitting window material fixing protrusion is formed as a protrusion on a substantially horizontal inner surface around an opening in the center of the protruding top wall. 3. The utility model registration according to claim 1, wherein the infrared transmitting window material fixing protrusion is provided as an inner edge of the opening by a downward slope from the outside to the inside of the inner surface around the opening of the central part of the protruding top wall. Infrared sensor.