JPS5263626A - Photoelectric reader - Google Patents
Photoelectric readerInfo
- Publication number
- JPS5263626A JPS5263626A JP50139582A JP13958275A JPS5263626A JP S5263626 A JPS5263626 A JP S5263626A JP 50139582 A JP50139582 A JP 50139582A JP 13958275 A JP13958275 A JP 13958275A JP S5263626 A JPS5263626 A JP S5263626A
- Authority
- JP
- Japan
- Prior art keywords
- photoelectric reader
- voltage
- output
- photoelectric
- reader
- 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.)
- Granted
Links
Abstract
PURPOSE: A voltage V0 proportionate to photoreception current of photodiode is compared with standard voltage V and in the case where V0> V, a portion of output is returned by positive feedback so as to obtain stable output which is independent from external conditions.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50139582A JPS5263626A (en) | 1975-11-20 | 1975-11-20 | Photoelectric reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50139582A JPS5263626A (en) | 1975-11-20 | 1975-11-20 | Photoelectric reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5263626A true JPS5263626A (en) | 1977-05-26 |
JPS5412371B2 JPS5412371B2 (en) | 1979-05-22 |
Family
ID=15248606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50139582A Granted JPS5263626A (en) | 1975-11-20 | 1975-11-20 | Photoelectric reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5263626A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4934009A (en) * | 1972-07-26 | 1974-03-29 | ||
JPS4949383A (en) * | 1972-06-15 | 1974-05-13 |
-
1975
- 1975-11-20 JP JP50139582A patent/JPS5263626A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4949383A (en) * | 1972-06-15 | 1974-05-13 | ||
JPS4934009A (en) * | 1972-07-26 | 1974-03-29 |
Also Published As
Publication number | Publication date |
---|---|
JPS5412371B2 (en) | 1979-05-22 |
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