JPS6036620U - optical scanning device - Google Patents
optical scanning deviceInfo
- Publication number
- JPS6036620U JPS6036620U JP12780783U JP12780783U JPS6036620U JP S6036620 U JPS6036620 U JP S6036620U JP 12780783 U JP12780783 U JP 12780783U JP 12780783 U JP12780783 U JP 12780783U JP S6036620 U JPS6036620 U JP S6036620U
- Authority
- JP
- Japan
- Prior art keywords
- optical scanning
- scanning device
- clock signal
- photosensitive
- light beam
- 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)
- Fax Reproducing Arrangements (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図は従来の光走査装置の一例を示す構成図、第２図
は本考案に係る装置の一例を示す構成ブロック図、第３
図は第２図におけるクロック信号発生回路の詳細な構成
を示すブロック図、第４図はその動作説明図、第５図は
光ビームの振れ角θと周期Ｔとの関係を示す線図、第６
図はプログラマブルカウンタに印加される分周比データ
と、時間との関係を示す線図、第７図は本考案の他の実
施例を示す構成ブロック図、第８図は第７図装置におい
て、光ビームの振れ角θと光源パワーＰとの関係を示す
線図である。
１・・・・・・光源、２・・・・・・レンズ、３・・・
・・・回転多面鏡、５・・・・・・感光ドラム、６・・
・・・・光源駆動回路、７・・・・・・バッファメモリ
回路、８・・・・・・アドレスカウンタ、９・・・・・
・クロック信号発生回路、９１・・・・・・基準クロッ
ク発生部、９２・・・・・・プログラマブルカウンタ。FIG. 1 is a block diagram showing an example of a conventional optical scanning device, FIG. 2 is a block diagram showing an example of a device according to the present invention, and FIG.
2 is a block diagram showing the detailed configuration of the clock signal generation circuit in FIG. 2, FIG. 4 is an explanatory diagram of its operation, FIG. 6
The figure is a diagram showing the relationship between frequency division ratio data applied to the programmable counter and time, FIG. 7 is a block diagram showing another embodiment of the present invention, and FIG. 3 is a diagram showing the relationship between the deflection angle θ of a light beam and the light source power P. FIG. 1...Light source, 2...Lens, 3...
...Rotating polygon mirror, 5...Photosensitive drum, 6...
...Light source drive circuit, 7...Buffer memory circuit, 8...Address counter, 9...
- Clock signal generation circuit, 91...Reference clock generation section, 92...Programmable counter.
Claims (2)
る光走査装置において、前記感光手段上のひとつのドツ
トに相当するデニタの書き込み周期を制御するクロック
信号を、基準クロック信号を入力信号とするプログラマ
ブルカウンタの出力から得るようにするとともに、前記
プログラマブルカウンタに与える分周比データを前記光
ビームの振れ角に対応して所定関数で制御するようにし
たことを特徴とする光走査装置。(1) In an optical scanning device that projects and scans a light beam onto a photosensitive device, a reference clock signal is used as an input signal for a clock signal that controls the writing cycle of a denture corresponding to one dot on the photosensitive device. An optical scanning device characterized in that the frequency division ratio data is obtained from the output of a programmable counter, and the frequency division ratio data given to the programmable counter is controlled by a predetermined function corresponding to the deflection angle of the light beam.
書き込み周期Ｔは、光ビームの振れ角θに対して、Ｔ＝
Ｔｏ ｃｏｓ２θ（但し、ＴＯはθ＝０のときの周期
）の関数で制御される実用新案登録請求の範囲第１項記
載の光走査装置。(2) The writing period T of data corresponding to one dot on the photosensitive means is T=
The optical scanning device according to claim 1, which is controlled by a function of To cos 2θ (where TO is the period when θ=0).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12780783U JPS6036620U (en) | 1983-08-18 | 1983-08-18 | optical scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12780783U JPS6036620U (en) | 1983-08-18 | 1983-08-18 | optical scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6036620U true JPS6036620U (en) | 1985-03-13 |
Family
ID=30290154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12780783U Pending JPS6036620U (en) | 1983-08-18 | 1983-08-18 | optical scanning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6036620U (en) |
-
1983
- 1983-08-18 JP JP12780783U patent/JPS6036620U/en active Pending
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