JPS63199221U - - Google Patents
Info
- Publication number
- JPS63199221U JPS63199221U JP7023588U JP7023588U JPS63199221U JP S63199221 U JPS63199221 U JP S63199221U JP 7023588 U JP7023588 U JP 7023588U JP 7023588 U JP7023588 U JP 7023588U JP S63199221 U JPS63199221 U JP S63199221U
- Authority
- JP
- Japan
- Prior art keywords
- receiving element
- light receiving
- light
- detection device
- annular portion
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Mechanical Optical Scanning Systems (AREA)
Description
第１図、第２図は従来例の等速制御を示す略線
図。第３図は本考案の実施例のポリゴンミラの拡
大平面図。第４図は速度検出装置による等速制御
を示すブロツク図。
Ｂ１……入射光線、Ｂ２……反射光線、ａ，ｂ
……レーザ光線、１５……環状部、１６……縞目
、１７……縞目を形成しない部分、１８……発光
素子、２０……受光素子、２２……波形整形回路
、２４……位置比較器、２６……可変分周器、２
８……基準発振器、３０……駆動回路、３２……
モータ。
FIGS. 1 and 2 are schematic diagrams showing conventional constant velocity control. FIG. 3 is an enlarged plan view of a polygon mirror according to an embodiment of the present invention. FIG. 4 is a block diagram showing constant velocity control using a velocity detection device. B 1 ... incident ray, B 2 ... reflected ray, a, b
. . . Laser beam, 15 . Comparator, 26...variable frequency divider, 2
8... Reference oscillator, 30... Drive circuit, 32...
motor.
Claims (1)
の中心と同心的に形成した環状部に等間隔の複数
の縞目を形成し、前記環状部に光線を反射せしめ
る発光素子と前記反射光線を受光する受光素子を
具えた速度検出装置により定速制御可能なポリゴ
ンミラを有するポリゴンスキヤナ。 ２ 発光素子、受光素子、波形整形回路、位相比
較器、可変分周器、基準発振器、駆動回路よりな
る速度検出装置を有する実用新案登録請求の範囲
第１項記載のポリゴンスキヤナ。[Claims for Utility Model Registration] 1. A light emitting device in which a plurality of equally spaced stripes are formed on an annular portion formed concentrically with the center of a plane on which no reflective surface of a polygon mirror is formed, and light rays are reflected on the annular portion. A polygon scanner having a polygon mirror that can be controlled at a constant speed by a speed detection device including a light receiving element and a light receiving element that receives the reflected light beam. 2. The polygon scanner according to claim 1, which has a speed detection device comprising a light emitting element, a light receiving element, a waveform shaping circuit, a phase comparator, a variable frequency divider, a reference oscillator, and a drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7023588U JPS63199221U (en) | 1988-05-27 | 1988-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7023588U JPS63199221U (en) | 1988-05-27 | 1988-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63199221U true JPS63199221U (en) | 1988-12-22 |
Family
ID=30911689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7023588U Pending JPS63199221U (en) | 1988-05-27 | 1988-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63199221U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54150141A (en) * | 1978-05-17 | 1979-11-26 | Ricoh Co Ltd | Rotary polyhedral mirror |
| JPS57150815A (en) * | 1981-03-14 | 1982-09-17 | Toshiba Corp | Irradiation beam deflecting device |
-
1988
- 1988-05-27 JP JP7023588U patent/JPS63199221U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54150141A (en) * | 1978-05-17 | 1979-11-26 | Ricoh Co Ltd | Rotary polyhedral mirror |
| JPS57150815A (en) * | 1981-03-14 | 1982-09-17 | Toshiba Corp | Irradiation beam deflecting device |