JPH0239208U - - Google Patents
Info
- Publication number
- JPH0239208U JPH0239208U JP11769188U JP11769188U JPH0239208U JP H0239208 U JPH0239208 U JP H0239208U JP 11769188 U JP11769188 U JP 11769188U JP 11769188 U JP11769188 U JP 11769188U JP H0239208 U JPH0239208 U JP H0239208U
- Authority
- JP
- Japan
- Prior art keywords
- shielding plate
- light emitting
- small hole
- emitting body
- light
- 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 2
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
第1図は本考案の一実施例の概略を示す説明図
、第2図は光ビームの屈析を利用した被検出体の
検出方法を示す説明図、第3図は該検出方法の応
用例を示す説明図である。
7は発光ダイオード、8はドライブ回路、9は
第1遮蔽板、10は第2遮蔽板、11は点孔、1
2は通孔、13は光拡散板、14は集光レンズを
示す。
Fig. 1 is an explanatory diagram showing an outline of an embodiment of the present invention, Fig. 2 is an explanatory diagram showing a method for detecting an object using refraction of a light beam, and Fig. 3 is an example of application of the detection method. FIG. 7 is a light emitting diode, 8 is a drive circuit, 9 is a first shielding plate, 10 is a second shielding plate, 11 is a point hole, 1
2 is a through hole, 13 is a light diffusing plate, and 14 is a condensing lens.
Claims (1)
して順次配設され、小孔を穿設した第1の遮蔽板
、第2の遮蔽板と、第1の遮蔽板の小孔の発光体
側に設けられた光拡散板と、第2の遮蔽板の小孔
の第1の遮蔽板側に設けられた集光レンズを具備
したことを特徴とする光ビーム発生装置。 A light emitting body such as a light emitting diode, a first shielding plate provided with a small hole in the light emitting body, a second shielding plate, and a small hole of the first shielding plate on the side of the light emitting body. A light beam generating device comprising: a light diffusing plate; and a condensing lens provided on the first shielding plate side of the small hole of the second shielding plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11769188U JPH0239208U (en) | 1988-09-07 | 1988-09-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11769188U JPH0239208U (en) | 1988-09-07 | 1988-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0239208U true JPH0239208U (en) | 1990-03-15 |
Family
ID=31361373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11769188U Pending JPH0239208U (en) | 1988-09-07 | 1988-09-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0239208U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018066730A (en) * | 2016-10-19 | 2018-04-26 | オムロン株式会社 | Transmission type photoelectric sensor and target detection system |
-
1988
- 1988-09-07 JP JP11769188U patent/JPH0239208U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018066730A (en) * | 2016-10-19 | 2018-04-26 | オムロン株式会社 | Transmission type photoelectric sensor and target detection system |
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