JPS6464264A - Semiconductor photo detector using circular electrode - Google Patents
Semiconductor photo detector using circular electrodeInfo
- Publication number
- JPS6464264A JPS6464264A JP62204577A JP20457787A JPS6464264A JP S6464264 A JPS6464264 A JP S6464264A JP 62204577 A JP62204577 A JP 62204577A JP 20457787 A JP20457787 A JP 20457787A JP S6464264 A JPS6464264 A JP S6464264A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- current
- circumference
- light
- resistive layer
- 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
- Light Receiving Elements (AREA)
Abstract
PURPOSE:To enable the measurement of light incidence position displacement and incident energy, with a simple structure, by arranging a circular electrode and a center electrode, on the periphery of a resistive layer and at a center, respectively, and leading out, from each electrode, a current of electric charge generated by incidence of light, which current flows through the resistive layer. CONSTITUTION:When light enters an Si layer 2 though a substrate 5 and a transparent electrode 4, electric charge generates in the layer, in response to the energy of incident light, and a current flows to each electrode through a resistive layer 1. In the case where a resistor R is not connected, and the current is lead out directly from a center electrode, the detected current from the center electrode becomes small, as a light incidence position goes toward the periphery, and on the contrary, the current increases in a circumference electrode. In the case where the center electrode is not formed, and the current is lead out only by the circumference electrode, the circumference current does not change regardless of the change of light incidence position. If a resistor R having almost equal resistance corresponding to the radius length of the resistive layer 2 of a detector is connect to the central electrode, and the detection is performed in this state, an electrically almost equivalent state to the case where the central electrode does not exist can be obtained. As a result, the circumference current can be made constant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62204577A JPS6464264A (en) | 1987-08-18 | 1987-08-18 | Semiconductor photo detector using circular electrode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62204577A JPS6464264A (en) | 1987-08-18 | 1987-08-18 | Semiconductor photo detector using circular electrode |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6464264A true JPS6464264A (en) | 1989-03-10 |
Family
ID=16492772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62204577A Pending JPS6464264A (en) | 1987-08-18 | 1987-08-18 | Semiconductor photo detector using circular electrode |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464264A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5778182A (en) * | 1980-10-31 | 1982-05-15 | Kazuo Fushimi | Semiconductor position detector |
JPS5852514A (en) * | 1981-08-11 | 1983-03-28 | カ−ル・エリツク・モランデル | Measuring device for distance between light source and surface of observation |
JPS63153407A (en) * | 1986-12-18 | 1988-06-25 | Mitsutoyo Corp | Semiconductor position detector |
-
1987
- 1987-08-18 JP JP62204577A patent/JPS6464264A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5778182A (en) * | 1980-10-31 | 1982-05-15 | Kazuo Fushimi | Semiconductor position detector |
JPS5852514A (en) * | 1981-08-11 | 1983-03-28 | カ−ル・エリツク・モランデル | Measuring device for distance between light source and surface of observation |
JPS63153407A (en) * | 1986-12-18 | 1988-06-25 | Mitsutoyo Corp | Semiconductor position detector |
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