JPS5485744A - Multibeam light modulating deflector - Google Patents
Multibeam light modulating deflectorInfo
- Publication number
- JPS5485744A JPS5485744A JP15378077A JP15378077A JPS5485744A JP S5485744 A JPS5485744 A JP S5485744A JP 15378077 A JP15378077 A JP 15378077A JP 15378077 A JP15378077 A JP 15378077A JP S5485744 A JPS5485744 A JP S5485744A
- Authority
- JP
- Japan
- Prior art keywords
- intensity
- correcting
- diffracted light
- decreases
- output beams
- 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: To obviate changing of respective output beams depending upon other signals, etc. by generating a compensating beam other than output beams and controlling the intensity of the compensating beam so that the non-diffracted light intensity from an ultrasonic light deflecting element becomes of a specified value.
CONSTITUTION: This is the device of splitting one input beam 3 to a plurality of output beam 4 by using one ultrasonic light deflecting element 1 and modifying the intensity of the respective output beams 4, wherein a correcting output beam 4-S is outputted other than said necessary output beams 4 and when the intensity of the non-diffracted light 5 decreases and the input to the photo detector 13 of a correcting system 12 decreases, then the intensity of the correcting beam 4-S decreases. Since the intensity of the input beam 3 is constant, the decrease in the intensity of the correcting beam 4-S results in the increase in the intensity of the non-diffracted light 5. If the non-diffracted light intensity is made constant by consitituting such negateive feedback system, the intensities of the respective output beam 4 generated by diffraction are determined only by the amplidudes of the respecive component signals inrrespecive of the presence or not and magnitude of other driving signals.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15378077A JPS5485744A (en) | 1977-12-20 | 1977-12-20 | Multibeam light modulating deflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15378077A JPS5485744A (en) | 1977-12-20 | 1977-12-20 | Multibeam light modulating deflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5485744A true JPS5485744A (en) | 1979-07-07 |
| JPS6124691B2 JPS6124691B2 (en) | 1986-06-12 |
Family
ID=15569968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15378077A Granted JPS5485744A (en) | 1977-12-20 | 1977-12-20 | Multibeam light modulating deflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5485744A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797265A (en) * | 1980-12-08 | 1982-06-16 | Matsushita Graphic Commun Syst Inc | Optical input and output detector for ultrasonic wave optical modulator |
| US5890789A (en) * | 1996-11-18 | 1999-04-06 | Minolta Co., Ltd. | Multi-beam emitting device having an acoustooptic element |
| US6134255A (en) * | 1996-09-24 | 2000-10-17 | Minolta Co., Ltd. | Laminate type multi-semiconductor laser device and laser beam scanning optical apparatus employing the semiconductor laser device |
| WO2005073789A1 (en) * | 2004-01-20 | 2005-08-11 | Symbol Technologies, Inc. | Electronic alignment of acousto-optic modulator for modulating a laser |
-
1977
- 1977-12-20 JP JP15378077A patent/JPS5485744A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5797265A (en) * | 1980-12-08 | 1982-06-16 | Matsushita Graphic Commun Syst Inc | Optical input and output detector for ultrasonic wave optical modulator |
| US6134255A (en) * | 1996-09-24 | 2000-10-17 | Minolta Co., Ltd. | Laminate type multi-semiconductor laser device and laser beam scanning optical apparatus employing the semiconductor laser device |
| US5890789A (en) * | 1996-11-18 | 1999-04-06 | Minolta Co., Ltd. | Multi-beam emitting device having an acoustooptic element |
| WO2005073789A1 (en) * | 2004-01-20 | 2005-08-11 | Symbol Technologies, Inc. | Electronic alignment of acousto-optic modulator for modulating a laser |
| US7274718B2 (en) | 2004-01-20 | 2007-09-25 | Symbol Technologies, Inc. | Electronic alignment of acousto-optic modulator for modulating a laser |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6124691B2 (en) | 1986-06-12 |
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