JPS60186424U - Rotating mirror drive device - Google Patents
Rotating mirror drive deviceInfo
- Publication number
- JPS60186424U JPS60186424U JP7317884U JP7317884U JPS60186424U JP S60186424 U JPS60186424 U JP S60186424U JP 7317884 U JP7317884 U JP 7317884U JP 7317884 U JP7317884 U JP 7317884U JP S60186424 U JPS60186424 U JP S60186424U
- Authority
- JP
- Japan
- Prior art keywords
- rotating mirror
- drive device
- mirror drive
- rotation speed
- photoelectric conversion
- 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
- Mechanical Optical Scanning Systems (AREA)
- Control Of Velocity Or Acceleration (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
、第１図は本考案の一実施例の回路図。第２図は本考案
の一実施例における回転数検出部の概念 −図、
第３図は本考案の一実施例における回転数構ｆｆ１７７
、ｊ：、：ｊ−７責ｔ、３−Ｅ−、−夕、５・・・・・
・ホトカプラ、６・・・・・・全光ダイオード、７冑・
・・受光素子、９・・・・・・基準パルス発振器、１０
゛・・・・・・電圧変換器、１１・・・・・・位
相比較器、１２・・曲 、 ゛ローパスフィルタ、１
３・・・・・・電力増幅器。, FIG. 1 is a circuit diagram of an embodiment of the present invention. Fig. 2 is a conceptual diagram of the rotation speed detection unit in an embodiment of the present invention.
Figure 3 shows the rotational speed structure ff177 in one embodiment of the present invention.
, j:, :j-7 blame t, 3-E-, -evening, 5...
・Photocoupler, 6...all-optical diode, 7-
... Light receiving element, 9 ... Reference pulse oscillator, 10
゛...Voltage converter, 11...Phase comparator, 12...Song, ゛Low-pass filter, 1
3...Power amplifier.
Claims (1)
クロック六ルス信号又はそれを分周した基準クロック信
号とを位相比較し、この位相比較出力に応じた信号に１
って回転ミラー駆動モータの回転数を制御する回転ミラ
ー駆動装置において、回転ミラーの鏡面に対して光を投
射する発光゛ 手段と、波面において反射した発光手
段からの光を受光する光電変換手段とを備え、光電変換
手段−の出力または光電変換手段の出力に対応した信号
を回転数検出信号としたことを特徴とする回転ミラー駆
動装置。The rotation speed detection signal that detects the rotation speed of the rotating mirror and the reference clock signal or the reference clock signal obtained by dividing it are compared in phase, and a signal corresponding to the phase comparison output is set to 1.
A rotating mirror drive device that controls the rotational speed of a rotating mirror drive motor by means of a light emitting means for projecting light onto a mirror surface of a rotating mirror, and a photoelectric conversion means for receiving light from the light emitting means reflected on a wavefront. What is claimed is: 1. A rotating mirror drive device, characterized in that the output of the photoelectric conversion means or a signal corresponding to the output of the photoelectric conversion means is used as a rotation speed detection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317884U JPS60186424U (en) | 1984-05-21 | 1984-05-21 | Rotating mirror drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7317884U JPS60186424U (en) | 1984-05-21 | 1984-05-21 | Rotating mirror drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60186424U true JPS60186424U (en) | 1985-12-10 |
Family
ID=30612290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7317884U Pending JPS60186424U (en) | 1984-05-21 | 1984-05-21 | Rotating mirror drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60186424U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57150816A (en) * | 1981-03-14 | 1982-09-17 | Toshiba Corp | Irradiation beam deflecting device |
| JPS59151125A (en) * | 1983-02-17 | 1984-08-29 | Derufuai:Kk | Polygon scanner |
-
1984
- 1984-05-21 JP JP7317884U patent/JPS60186424U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57150816A (en) * | 1981-03-14 | 1982-09-17 | Toshiba Corp | Irradiation beam deflecting device |
| JPS59151125A (en) * | 1983-02-17 | 1984-08-29 | Derufuai:Kk | Polygon scanner |
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