JPS6110530U - light detection device - Google Patents
light detection deviceInfo
- Publication number
- JPS6110530U JPS6110530U JP9501384U JP9501384U JPS6110530U JP S6110530 U JPS6110530 U JP S6110530U JP 9501384 U JP9501384 U JP 9501384U JP 9501384 U JP9501384 U JP 9501384U JP S6110530 U JPS6110530 U JP S6110530U
- Authority
- JP
- Japan
- Prior art keywords
- photodetector
- source
- detection device
- light detection
- light source
- 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
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の光検出装置の構成を示す図、第２図は従
来の装置で背景光の変動により感度が変動することを示
す図、第３図はこの考案の一実施例を示す構成図で、１
は定電圧源、２は光検出器、３は降圧抵抗、５は定電流
源、６は光源、７はトランジスタである。
なお、図中同一あるいは相当部分には同一の符号を付し
て示してある。Fig. 1 is a diagram showing the configuration of a conventional photodetection device, Fig. 2 is a diagram showing that the sensitivity of the conventional device fluctuates due to fluctuations in background light, and Fig. 3 is a diagram showing the configuration of an embodiment of this invention. In the figure, 1
2 is a constant voltage source, 2 is a photodetector, 3 is a step-down resistor, 5 is a constant current source, 6 is a light source, and 7 is a transistor. It should be noted that the same or corresponding parts in the drawings are denoted by the same reference numerals.
Claims (1)
検出器にバイアス電圧を加える定電圧源と、上記光検出
器に光を照射する光源と、上記光源を駆動する定電流源
を備えた光検出装置において、上記光検出器の出力を増
巾するトランジスダを設け、上記トランジスタの出力で
上記定電流源の電流を分流して、上記光源に負帰還をか
けたことを特徴とする光検出装置。A photodetector, a step-down resistor, a constant voltage source that applies a bias voltage to the photodetector via the step-down resistor, a light source that irradiates the photodetector with light, and a constant current source that drives the light source. The photodetector is characterized in that a transistor is provided to amplify the output of the photodetector, and the output of the transistor shunts the current of the constant current source to apply negative feedback to the light source. Photodetection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9501384U JPS6110530U (en) | 1984-06-25 | 1984-06-25 | light detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9501384U JPS6110530U (en) | 1984-06-25 | 1984-06-25 | light detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6110530U true JPS6110530U (en) | 1986-01-22 |
Family
ID=30653932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9501384U Pending JPS6110530U (en) | 1984-06-25 | 1984-06-25 | light detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6110530U (en) |
-
1984
- 1984-06-25 JP JP9501384U patent/JPS6110530U/en active Pending
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