JPH0233331U - - Google Patents
Info
- Publication number
- JPH0233331U JPH0233331U JP11233688U JP11233688U JPH0233331U JP H0233331 U JPH0233331 U JP H0233331U JP 11233688 U JP11233688 U JP 11233688U JP 11233688 U JP11233688 U JP 11233688U JP H0233331 U JPH0233331 U JP H0233331U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- ray
- hot
- fresnel lens
- 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
- 238000010586 diagram Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
同上の斜視図、第３図は同上の動作説明図、第４
図ａは本考案の他の実施例の斜視図、同図ｂは同
上の取付説明図、第５図は本考案のさらに他の実
施例の断面図、第６図は同上の動作説明図、第７
図ａ〜ｃは同上で設定される検知エリアの説明図
、第８図ａ〜ｃは従来例の検知エリアの可変方法
の説明図、第９図はフレネルレンズの平面図、第
１０図ａ，ｂは検知エリアを上下方向に変更した
場合の説明図、第１１図は同上の問題点の説明図
、第１２図ａ，ｂは同上の複合センサに用いた場
合の問題点の説明図である。
１はフレネルレンズ、２は焦電素子、９は遮蔽
板、１０は遮蔽枠、１４は遮蔽体である。
Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a perspective view of the same as the above, Fig. 3 is an explanatory view of the same as the above, and Fig. 4 is an explanatory view of the same as the above.
Figure a is a perspective view of another embodiment of the present invention, Figure b is an explanatory diagram of the installation of the same as above, Figure 5 is a sectional view of still another embodiment of the present invention, Figure 6 is an explanatory diagram of the operation of the same as above, 7th
Figures a to c are explanatory diagrams of the detection area set in the same manner as above, Figures 8 a to c are explanatory diagrams of a conventional method of varying the detection area, Figure 9 is a plan view of the Fresnel lens, and Figures 10 a, b is an explanatory diagram when the detection area is changed in the vertical direction, Fig. 11 is an explanatory diagram of the problem in the same as above, and Fig. 12 a and b is an explanatory diagram of the problem in the case of using the same as the above composite sensor. . 1 is a Fresnel lens, 2 is a pyroelectric element, 9 is a shielding plate, 10 is a shielding frame, and 14 is a shielding body.
Claims (1)
ンズ体の夫々焦点方向を焦電素子の方向に向けて
熱線を集光するフレネルレンズを備えた熱線式検
知器において、フレネルレンズのレンズ体の連設
方向から焦電素子に照射され熱線を遮蔽する遮蔽
手段を備えて成ることを特徴とする熱線式検知器
。 In a hot-ray detector equipped with a Fresnel lens that is formed by arranging a large number of multiple lens bodies and focuses a hot ray by directing the focal direction of each lens body toward the pyroelectric element, the lens body of the Fresnel lens A heat ray type detector comprising a shielding means for shielding heat rays irradiated onto the pyroelectric element from the direction in which the pyroelectric elements are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11233688U JPH0233331U (en) | 1988-08-26 | 1988-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11233688U JPH0233331U (en) | 1988-08-26 | 1988-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233331U true JPH0233331U (en) | 1990-03-02 |
Family
ID=31351184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11233688U Pending JPH0233331U (en) | 1988-08-26 | 1988-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533086U (en) * | 1991-10-11 | 1993-04-30 | 株式会社チノー | Detector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752091B2 (en) * | 1975-06-24 | 1982-11-05 | ||
| JPS5752090B2 (en) * | 1978-06-26 | 1982-11-05 | ||
| JPS6348788A (en) * | 1986-08-13 | 1988-03-01 | 安田 繁之 | Panel heater |
-
1988
- 1988-08-26 JP JP11233688U patent/JPH0233331U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5752091B2 (en) * | 1975-06-24 | 1982-11-05 | ||
| JPS5752090B2 (en) * | 1978-06-26 | 1982-11-05 | ||
| JPS6348788A (en) * | 1986-08-13 | 1988-03-01 | 安田 繁之 | Panel heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0533086U (en) * | 1991-10-11 | 1993-04-30 | 株式会社チノー | Detector |
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