JPS6166969U - - Google Patents
Info
- Publication number
- JPS6166969U JPS6166969U JP15250684U JP15250684U JPS6166969U JP S6166969 U JPS6166969 U JP S6166969U JP 15250684 U JP15250684 U JP 15250684U JP 15250684 U JP15250684 U JP 15250684U JP S6166969 U JPS6166969 U JP S6166969U
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor laser
- ambient temperature
- driving
- controlling
- utility
- 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
- 239000004065 semiconductor Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 1
Description
第１図は、本考案に係る半導体レーザの駆動回
路を示す図、第２図は一般的な駆動回路を示す図
、第３図は周囲温度に対する半導体レーザの特性
図、第４図は使用時間に対する半導体レーザの特
性図である。
１…定電流電源回路、２…半導体レーザ、３…
モニターダイオード、Ｒｓ，ＲＴ…温度に応じて
抵抗値が減少する抵抗。
Fig. 1 is a diagram showing a driving circuit for a semiconductor laser according to the present invention, Fig. 2 is a diagram showing a general driving circuit, Fig. 3 is a characteristic diagram of a semiconductor laser with respect to ambient temperature, and Fig. 4 is a diagram showing usage time. FIG. 3 is a characteristic diagram of a semiconductor laser with respect to 1... Constant current power supply circuit, 2... Semiconductor laser, 3...
Monitor diode, Rs, RT...A resistor whose resistance value decreases depending on the temperature.
Claims (1)
を制御する手段を設けたことを特徴とする半導体
レーザの駆動回路。 1. A semiconductor laser drive circuit, comprising means for controlling a current for driving the semiconductor laser according to ambient temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984152506U JPH0534124Y2 (en) | 1984-10-09 | 1984-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984152506U JPH0534124Y2 (en) | 1984-10-09 | 1984-10-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6166969U true JPS6166969U (en) | 1986-05-08 |
| JPH0534124Y2 JPH0534124Y2 (en) | 1993-08-30 |
Family
ID=30710565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984152506U Expired - Lifetime JPH0534124Y2 (en) | 1984-10-09 | 1984-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0534124Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595685A (en) * | 1982-07-01 | 1984-01-12 | Fujitsu Ltd | Driving circuit for semiconductor laser |
| JPS5917291A (en) * | 1982-07-21 | 1984-01-28 | Canon Inc | Semiconductor laser controller |
-
1984
- 1984-10-09 JP JP1984152506U patent/JPH0534124Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595685A (en) * | 1982-07-01 | 1984-01-12 | Fujitsu Ltd | Driving circuit for semiconductor laser |
| JPS5917291A (en) * | 1982-07-21 | 1984-01-28 | Canon Inc | Semiconductor laser controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0534124Y2 (en) | 1993-08-30 |