JPH0184033U - - Google Patents
Info
- Publication number
- JPH0184033U JPH0184033U JP1987180303U JP18030387U JPH0184033U JP H0184033 U JPH0184033 U JP H0184033U JP 1987180303 U JP1987180303 U JP 1987180303U JP 18030387 U JP18030387 U JP 18030387U JP H0184033 U JPH0184033 U JP H0184033U
- Authority
- JP
- Japan
- Prior art keywords
- heat
- ray detector
- shield
- cylindrical body
- pyroelectric element
- 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
Links
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
Description
第１図乃至第３図は本考案の実施例を示し、第
１図は検知器の断面図、第２図は効果を示す原理
図、第３図は側面図である。第４図及び第５図は
従来例を示し、第４図、第５図とも側面図である
。
１……検知器、２……素子ブロツク、３……遮
蔽体、４……シールド構造体、５……焦電素子、
６……筒状体。
1 to 3 show an embodiment of the present invention, in which FIG. 1 is a sectional view of the detector, FIG. 2 is a principle diagram showing the effect, and FIG. 3 is a side view. 4 and 5 show a conventional example, and both FIGS. 4 and 5 are side views. 1... Detector, 2... Element block, 3... Shielding body, 4... Shield structure, 5... Pyroelectric element,
6...Cylindrical body.
Claims (1)
線検知器であつて、焦電素子と、この焦電素子を
覆う筒状体と、前面窓にフイルターで素子ブロツ
クを形成し、かつ、筒状体の前面を、一定の間隔
を持たせて覆うことにより外乱光の侵入を阻止す
る金属性の遮蔽体を有するものであつて、この遮
蔽体あるいは筒状体のうち外乱光の被照射部位を
鏡面としたことを特徴とする熱線式検知器。 (2) 遮蔽体は増幅回路等の内部回路のシールド
構造体と一体に形成し、このシールド構造体によ
り放熱を助長するよう構成した実用新案登録請求
の範囲第１項記載の熱線式検知器。 (3) 遮蔽体、又はシールド構造体の適宜箇所に
放熱用凹凸を形成した実用新案登録請求の範囲第
２項の熱線式検知器。[Scope of Claim for Utility Model Registration] (1) A heat ray detector that uses a pyroelectric element to mainly detect the human body, which comprises a pyroelectric element, a cylindrical body covering the pyroelectric element, and a front window. The element block is formed by a filter, and has a metallic shielding body that prevents disturbance light from entering by covering the front surface of the cylindrical body at a certain interval, and this shielding body or A heat ray detector characterized in that the part of the cylindrical body that is irradiated with ambient light has a mirror surface. (2) The heat-ray detector according to claim 1, wherein the shield is formed integrally with a shield structure of an internal circuit such as an amplifier circuit, and is configured to promote heat radiation by the shield structure. (3) The heat-ray detector according to claim 2 of the utility model registration claim, in which heat dissipation unevenness is formed at appropriate locations on the shield or the shield structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987180303U JPH0184033U (en) | 1987-11-26 | 1987-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987180303U JPH0184033U (en) | 1987-11-26 | 1987-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0184033U true JPH0184033U (en) | 1989-06-05 |
Family
ID=31471821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987180303U Pending JPH0184033U (en) | 1987-11-26 | 1987-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0184033U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60253928A (en) * | 1984-05-31 | 1985-12-14 | Fujitsu Ltd | cold shield |
-
1987
- 1987-11-26 JP JP1987180303U patent/JPH0184033U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60253928A (en) * | 1984-05-31 | 1985-12-14 | Fujitsu Ltd | cold shield |
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