JPS5596921A - Drive circuit for ultrasonic light modulator - Google Patents
Drive circuit for ultrasonic light modulatorInfo
- Publication number
- JPS5596921A JPS5596921A JP513879A JP513879A JPS5596921A JP S5596921 A JPS5596921 A JP S5596921A JP 513879 A JP513879 A JP 513879A JP 513879 A JP513879 A JP 513879A JP S5596921 A JPS5596921 A JP S5596921A
- Authority
- JP
- Japan
- Prior art keywords
- multiple frequency
- light modulator
- frequency driving
- ultrasonic
- intermission
- 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
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
Abstract
PURPOSE: To compensate the decrease in the diffraction efficiency at the multiple frequency driving by subjecting the ultrasonic light modulator to multiple frequency driving according to the combination of the control signals which perform intermission of individual diffracted beams.
CONSTITUTION: High frequency switches 3, 4 are controlled by the control inputs from terminals 11, 12 and ultrasonic waves of different frequencies are mixed through a high frequency mixer 5, by which an ultrasonic light modulator 100 is subjected to multiple frequency driving, then the diffracted laser light fluxes of different angles of deflections are generated. The output of an AND circuit 8 changes to high and low levels according to the states of the control inputs which change with the high and low levels of the terminals 11, 12 which perform the intermission of these respective diffracted beams, by which the amplification factor of an amplification factor variable aplifier 6 is controlled, thus the decrease in the diffraction efficiency of the modulator 100 owing to the interference at the similtaneous application of the multiple frequency driving signals is compensated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP513879A JPS5596921A (en) | 1979-01-19 | 1979-01-19 | Drive circuit for ultrasonic light modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP513879A JPS5596921A (en) | 1979-01-19 | 1979-01-19 | Drive circuit for ultrasonic light modulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5596921A true JPS5596921A (en) | 1980-07-23 |
Family
ID=11602942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP513879A Pending JPS5596921A (en) | 1979-01-19 | 1979-01-19 | Drive circuit for ultrasonic light modulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596921A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03132718A (en) * | 1989-10-19 | 1991-06-06 | Fuji Photo Film Co Ltd | Simultaneous multi-beam optical modulator |
-
1979
- 1979-01-19 JP JP513879A patent/JPS5596921A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03132718A (en) * | 1989-10-19 | 1991-06-06 | Fuji Photo Film Co Ltd | Simultaneous multi-beam optical modulator |
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