JPH02144162U - - Google Patents
Info
- Publication number
- JPH02144162U JPH02144162U JP5191989U JP5191989U JPH02144162U JP H02144162 U JPH02144162 U JP H02144162U JP 5191989 U JP5191989 U JP 5191989U JP 5191989 U JP5191989 U JP 5191989U JP H02144162 U JPH02144162 U JP H02144162U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting elements
- control means
- utility
- registration request
- 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 6
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
第１図は本考案の光検出装置の第１の実施例を
示す結線図、第２図は本考案の第２の実施例を示
す結線図、第３図は第２の実施例の動作の説明図
、第４図ａ，ｂ，ｃは本考案の動作を説明するフ
ローチヤート、第５図及び第６図は従来例を示す
概略図及び結線図、第７図は従来例の動作を説明
するタイミングチヤートである。
２ａ，２ｂ……発光素子（ＬＥＤ）、３ａ，３
ｂ……受光素子（ＰＨ）、４……マイクロコンピ
ユータ、５ａ，５ｂ……トランジスタ。
Fig. 1 is a wiring diagram showing the first embodiment of the photodetector of the present invention, Fig. 2 is a wiring diagram showing the second embodiment of the invention, and Fig. 3 is a diagram showing the operation of the second embodiment. Explanatory diagrams, Figures 4a, b, and c are flowcharts explaining the operation of the present invention, Figures 5 and 6 are schematic diagrams and connection diagrams showing the conventional example, and Figure 7 explains the operation of the conventional example. This is a timing chart. 2a, 2b...Light emitting element (LED), 3a, 3
b... Light receiving element (PH), 4... Microcomputer, 5a, 5b... Transistor.
Claims (1)
の受光素子を備えた光検出装置において、前記複
数個の発光素子を交互に点灯させる制御手段を有
することを特徴とする光検出装置。 A photodetecting device comprising a plurality of light emitting elements and a plurality of light receiving elements corresponding thereto, comprising a control means for alternately lighting up the plurality of light emitting elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5191989U JPH02144162U (en) | 1989-05-01 | 1989-05-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5191989U JPH02144162U (en) | 1989-05-01 | 1989-05-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02144162U true JPH02144162U (en) | 1990-12-06 |
Family
ID=31571779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5191989U Pending JPH02144162U (en) | 1989-05-01 | 1989-05-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02144162U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62114143A (en) * | 1985-11-14 | 1987-05-25 | Sony Corp | Tape end detector |
-
1989
- 1989-05-01 JP JP5191989U patent/JPH02144162U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62114143A (en) * | 1985-11-14 | 1987-05-25 | Sony Corp | Tape end detector |
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