JPS5558590A - Location adjustment of light emitting device - Google Patents
Location adjustment of light emitting deviceInfo
- Publication number
- JPS5558590A JPS5558590A JP13123978A JP13123978A JPS5558590A JP S5558590 A JPS5558590 A JP S5558590A JP 13123978 A JP13123978 A JP 13123978A JP 13123978 A JP13123978 A JP 13123978A JP S5558590 A JPS5558590 A JP S5558590A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting device
- voltmeter
- axis
- laser
- 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
- Led Devices (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Led Device Packages (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE: To effect the algnment of a light emitting device at high accuracy by measuring the maximum value of an electromotive force with use of a voltmeter and aligning an optical axis of a light emitting device to a required axis when a semiconductor laser is oscillated to emit the beam.
CONSTITUTION: One electrode of a semiconductor laser LD3 is connected to one terminal of the voltmeter 21 thuough a mount 4 and the other electrode to the other terminal of the voltmeter 21. The beam from a He-Ne laser 5 is comverged on a ligt emitting surface of LD3 through a lense 20 with a relatively long focus, a pinhole 6 and a hole 2. The central axis of the hole 2 for fitting an optical apparatus corresponds to an optical axis 8. PN-junction structure is formed adjacent to an active area within LD3, and the photovoltaic force is produced when the beam falls on this portion. So when the laser 5 emits the beam, the maximum value of an electromotive force is measured with use of a voltmeter 21, and an optical axis of a light emitting device is aligned to a required axis, so that the positioning is adjusted high accurately.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13123978A JPS5558590A (en) | 1978-10-25 | 1978-10-25 | Location adjustment of light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13123978A JPS5558590A (en) | 1978-10-25 | 1978-10-25 | Location adjustment of light emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5558590A true JPS5558590A (en) | 1980-05-01 |
Family
ID=15053250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13123978A Pending JPS5558590A (en) | 1978-10-25 | 1978-10-25 | Location adjustment of light emitting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5558590A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717167U (en) * | 1980-07-03 | 1982-01-28 | ||
| JPS5776851A (en) * | 1980-10-31 | 1982-05-14 | Watanabe Shoko:Kk | Inspecting device for photoelectric element |
| JPS60186080A (en) * | 1984-03-05 | 1985-09-21 | Nippon Telegr & Teleph Corp <Ntt> | Manufacture of laser diode module |
| JPS60261186A (en) * | 1984-06-08 | 1985-12-24 | Nippon Telegr & Teleph Corp <Ntt> | Manufacture of optical module |
-
1978
- 1978-10-25 JP JP13123978A patent/JPS5558590A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5717167U (en) * | 1980-07-03 | 1982-01-28 | ||
| JPS5776851A (en) * | 1980-10-31 | 1982-05-14 | Watanabe Shoko:Kk | Inspecting device for photoelectric element |
| JPS60186080A (en) * | 1984-03-05 | 1985-09-21 | Nippon Telegr & Teleph Corp <Ntt> | Manufacture of laser diode module |
| JPH0262955B2 (en) * | 1984-03-05 | 1990-12-27 | Nippon Telegraph & Telephone | |
| JPS60261186A (en) * | 1984-06-08 | 1985-12-24 | Nippon Telegr & Teleph Corp <Ntt> | Manufacture of optical module |
| JPH0262958B2 (en) * | 1984-06-08 | 1990-12-27 | Nippon Telegraph & Telephone |
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