JPS57172314A - Driving method of optical deflector - Google Patents
Driving method of optical deflectorInfo
- Publication number
- JPS57172314A JPS57172314A JP5753181A JP5753181A JPS57172314A JP S57172314 A JPS57172314 A JP S57172314A JP 5753181 A JP5753181 A JP 5753181A JP 5753181 A JP5753181 A JP 5753181A JP S57172314 A JPS57172314 A JP S57172314A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- hologram
- mark
- recorded
- optical deflector
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0808—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more diffracting elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
PURPOSE:To obtain a device which is small-sized and inexpensive, by driving a glass plate which has recorded a hologram as an optical deflector, by a DC motor, and also controlling a rotating speed of the motor by detecting a mark of the glass plate. CONSTITUTION:On a glass disk 12, holograms 131-13n are recorded at constant intervals on its outside circumference, and on the inside circumference, a mark 14 for detecting its rotation is recorded at constant intervals. A laser beam emitted from a laser 13 passes through a half-mirror 16 and a lens 17, is modulated by an information signal by an optical modulator 18, and is made incident to the hologram 13i on the glass disk 12 through a lens 28. When the glass disk 12 is rotated by a DC motor 19 and the hologram 13i is moved, the laser beam is deflected, and write is executed on a recording body 20. On the other hand, the light beam which has been made to branch by the half-mirror 16 passes through the part of the mark 14, is made incident to a photodetector 22, and by its output, the motor 19 is controlled to a constant speed. Accordingly, a device which is small-sized and inexpensive is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5753181A JPS57172314A (en) | 1981-04-16 | 1981-04-16 | Driving method of optical deflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5753181A JPS57172314A (en) | 1981-04-16 | 1981-04-16 | Driving method of optical deflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57172314A true JPS57172314A (en) | 1982-10-23 |
Family
ID=13058323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5753181A Pending JPS57172314A (en) | 1981-04-16 | 1981-04-16 | Driving method of optical deflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57172314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003046638A1 (en) * | 2001-11-28 | 2003-06-05 | Highwave Optical Technologies | Diffractive optical switch |
-
1981
- 1981-04-16 JP JP5753181A patent/JPS57172314A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003046638A1 (en) * | 2001-11-28 | 2003-06-05 | Highwave Optical Technologies | Diffractive optical switch |
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