JPS6326134U - - Google Patents
Info
- Publication number
- JPS6326134U JPS6326134U JP11751486U JP11751486U JPS6326134U JP S6326134 U JPS6326134 U JP S6326134U JP 11751486 U JP11751486 U JP 11751486U JP 11751486 U JP11751486 U JP 11751486U JP S6326134 U JPS6326134 U JP S6326134U
- Authority
- JP
- Japan
- Prior art keywords
- light receiving
- receiving element
- output
- differential amplifier
- shielding object
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図はこの考案の実施例を示すブロツク図、
第２図は近接センサの使用例を示した説明図、第
３図は従来の近接センサの構成を示したブロツク
図である。
４…人体、５，５′…第１、第２受光素子、１
１…差動増幅器。
Figure 1 is a block diagram showing an embodiment of this invention.
FIG. 2 is an explanatory diagram showing an example of the use of a proximity sensor, and FIG. 3 is a block diagram showing the configuration of a conventional proximity sensor. 4... Human body, 5, 5'... First and second light receiving elements, 1
1...Differential amplifier.
Claims (1)
来光の受光を遮る遮蔽物体４を検出する第２の受
光素子５′を有する受光部５，５′と、前記第１
の受光素子５の出力を基準として前記第２の受光
素子５′との差をとる差動増幅器１１とを備え、
該差動増幅器の出力を遮蔽物検出信号となすこと
を特徴とする近接センサ。 a light receiving section 5, 5' having a first light receiving element 5 for detecting external light and a second light receiving element 5' for detecting a shielding object 4 that blocks reception of the external light;
a differential amplifier 11 that takes the difference between the output of the second light receiving element 5' and the output of the second light receiving element 5' as a reference;
A proximity sensor characterized in that the output of the differential amplifier is used as a shielding object detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11751486U JPS6326134U (en) | 1986-08-01 | 1986-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11751486U JPS6326134U (en) | 1986-08-01 | 1986-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6326134U true JPS6326134U (en) | 1988-02-20 |
Family
ID=31003102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11751486U Pending JPS6326134U (en) | 1986-08-01 | 1986-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326134U (en) |
-
1986
- 1986-08-01 JP JP11751486U patent/JPS6326134U/ja active Pending