JPH029856U - - Google Patents
Info
- Publication number
- JPH029856U JPH029856U JP8892188U JP8892188U JPH029856U JP H029856 U JPH029856 U JP H029856U JP 8892188 U JP8892188 U JP 8892188U JP 8892188 U JP8892188 U JP 8892188U JP H029856 U JPH029856 U JP H029856U
- Authority
- JP
- Japan
- Prior art keywords
- light
- polarizing plate
- receiving
- utility
- modulated
- 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
- 230000003287 optical effect Effects 0.000 claims 1
- 230000010287 polarization Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図はこの考案の実施例を示す平面図、第２
図は発光素子と受光素子を用いた変調光による実
施例の平面図、第３図は光フアイバーを用いた実
施例の平面図である。
Ａ…投光器、Ｂ…受光器、１…投光部、２，３
…偏光板、４…受光部、Ｃ…煙、降雪、５…発光
素子、６…変調光発生装置、７…受光素子、８…
変調光受光素子、９，１１…集光レンズ、１０，
１２…光フアイバー、１３，１４…遮蔽筒。
Figure 1 is a plan view showing an embodiment of this invention, Figure 2 is a plan view showing an embodiment of this invention.
The figure is a plan view of an embodiment using modulated light using a light emitting element and a light receiving element, and FIG. 3 is a plan view of an embodiment using an optical fiber. A... Light emitter, B... Light receiver, 1... Light emitter, 2, 3
... Polarizing plate, 4... Light receiving section, C... Smoke, snowfall, 5... Light emitting element, 6... Modulated light generator, 7... Light receiving element, 8...
Modulated light receiving element, 9, 11... condensing lens, 10,
12... Optical fiber, 13, 14... Shield tube.
Claims (1)
前記投光部から発する光束中に偏光板を設けた投
光器と、前記偏光板と偏光方向が互いに方位角の
異なる別の偏光板を前記受光部の受光路中に設け
た受光器とからなることを特徴とする検知器。 (2) 投光部に発光素子を用い、かつ受光部には
受光素子を用いてなる実用新案登録請求の範囲第
１項記載の検知器。 (3) 発光素子に変調光発生装置を接続し、かつ
受光素子に変調光受光装置を接続してなる実用新
案登録請求の範囲第２項記載の検知器。[Scope of claims for utility model registration] (1) Regarding an optical system having a light emitting part and a light receiving part,
consisting of a light emitter in which a polarizing plate is provided in the light beam emitted from the light emitter, and a light receiver in which another polarizing plate is provided in the light receiving path of the light receiving part, the polarization direction of which is different from that of the polarizing plate. A detector featuring: (2) The detector according to claim 1, which uses a light-emitting element in the light-emitting part and a light-receiving element in the light-receiving part. (3) The detector according to claim 2, which is a utility model, and comprises a modulated light generator connected to a light emitting element, and a modulated light receiver connected to a light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8892188U JPH029856U (en) | 1988-07-04 | 1988-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8892188U JPH029856U (en) | 1988-07-04 | 1988-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH029856U true JPH029856U (en) | 1990-01-22 |
Family
ID=31313479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8892188U Pending JPH029856U (en) | 1988-07-04 | 1988-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH029856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5691522U (en) * | 1979-12-14 | 1981-07-21 | ||
| JP2004512148A (en) * | 2000-10-31 | 2004-04-22 | グラクソ グループ リミテッド | Drug dispenser |
-
1988
- 1988-07-04 JP JP8892188U patent/JPH029856U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5691522U (en) * | 1979-12-14 | 1981-07-21 | ||
| JPS58416Y2 (en) * | 1979-12-14 | 1983-01-06 | 東新プレス工業株式会社 | Kettle boiling alarm device |
| JP2004512148A (en) * | 2000-10-31 | 2004-04-22 | グラクソ グループ リミテッド | Drug dispenser |
| US7597099B2 (en) | 2000-10-31 | 2009-10-06 | Glaxo Group Limited | Medicament dispenser |
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