JPS63135319U - - Google Patents
Info
- Publication number
- JPS63135319U JPS63135319U JP2696187U JP2696187U JPS63135319U JP S63135319 U JPS63135319 U JP S63135319U JP 2696187 U JP2696187 U JP 2696187U JP 2696187 U JP2696187 U JP 2696187U JP S63135319 U JPS63135319 U JP S63135319U
- Authority
- JP
- Japan
- Prior art keywords
- output
- beam scanning
- comparator
- scanning position
- delay circuit
- 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.)
- Granted
Links
- 230000001934 delay Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Facsimile Transmission Control (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第1図は本考案に係るレーザビーム走査位置検
出装置の実施例を示す回路図、第2図は第1図示
実施例での比較器入力波形と出力変化の対応図、
第3及4図はいずれも比較器の入力波形と出力変
化の理論対応関係を示す説明図、第5図は従来装
置を示す回路図、第6図は第5図示実施例での比
較器入力波形と出力変化の対応図である。
1……フオトセンサ、10……フオトダイオー
ド、12,13……分割出力線、15……遅延回
路、16……遅延回路出力線、20……比較器、
T……比較器出力変化位置。
FIG. 1 is a circuit diagram showing an embodiment of the laser beam scanning position detection device according to the present invention, and FIG. 2 is a correspondence diagram of the comparator input waveform and output change in the first illustrated embodiment.
Figures 3 and 4 are explanatory diagrams showing the theoretical correspondence between the input waveform and output change of the comparator, Figure 5 is a circuit diagram showing a conventional device, and Figure 6 is the comparator input in the embodiment shown in Figure 5. FIG. 3 is a correspondence diagram between waveforms and output changes. 1... Photo sensor, 10... Photo diode, 12, 13... Division output line, 15... Delay circuit, 16... Delay circuit output line, 20... Comparator,
T... Comparator output change position.
Claims (1)
置又はこれに対応する位置に設置されたフオトセ
ンサの出力を遅延回路で遅延すると共に、該遅延
回路の出力と前記フオトセンサ出力の出力レベル
をレベル調整回路で等しくして、該両出力を比較
器で比較し、該比較器の比較結果によつてビーム
走査位置の検出を行なうよう構成したこと、を特
徴とするレーザビームの走査位置検出装置。 A delay circuit delays the output of a photo sensor installed at a predetermined scanning position on the laser beam scanning path or a position corresponding thereto, and a level adjustment circuit adjusts the output levels of the output of the delay circuit and the photo sensor output. 1. A laser beam scanning position detecting device, characterized in that the two outputs are compared by a comparator, and the beam scanning position is detected based on the comparison result of the comparator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987026961U JPH0434503Y2 (en) | 1987-02-25 | 1987-02-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987026961U JPH0434503Y2 (en) | 1987-02-25 | 1987-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63135319U true JPS63135319U (en) | 1988-09-06 |
JPH0434503Y2 JPH0434503Y2 (en) | 1992-08-17 |
Family
ID=30828549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987026961U Expired JPH0434503Y2 (en) | 1987-02-25 | 1987-02-25 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0434503Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63244970A (en) * | 1987-03-30 | 1988-10-12 | Ricoh Co Ltd | Synchronizing signal generator |
JPH0879469A (en) * | 1994-08-31 | 1996-03-22 | Nec Niigata Ltd | Laser scanning beam detection signal generating circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6130878U (en) * | 1984-07-27 | 1986-02-24 | サンクス株式会社 | Reflective photoelectric switch |
JPS6230212A (en) * | 1985-07-31 | 1987-02-09 | Copal Electron Co Ltd | Origin detector for optical scan |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5959388A (en) * | 1982-09-24 | 1984-04-05 | 富士通株式会社 | Robot |
-
1987
- 1987-02-25 JP JP1987026961U patent/JPH0434503Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6130878U (en) * | 1984-07-27 | 1986-02-24 | サンクス株式会社 | Reflective photoelectric switch |
JPS6230212A (en) * | 1985-07-31 | 1987-02-09 | Copal Electron Co Ltd | Origin detector for optical scan |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63244970A (en) * | 1987-03-30 | 1988-10-12 | Ricoh Co Ltd | Synchronizing signal generator |
JPH0879469A (en) * | 1994-08-31 | 1996-03-22 | Nec Niigata Ltd | Laser scanning beam detection signal generating circuit |
Also Published As
Publication number | Publication date |
---|---|
JPH0434503Y2 (en) | 1992-08-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS63135319U (en) | ||
JPH0317173U (en) | ||
JPS63157683U (en) | ||
JPS63101880U (en) | ||
JPS62155580U (en) | ||
JPS60174818U (en) | Laser beam sensor | |
JP2655841B2 (en) | Synchronous signal generator | |
JPH0368093U (en) | ||
JPS6191178U (en) | ||
JPH01146183U (en) | ||
JPS63173647U (en) | ||
JPH03110385U (en) | ||
JPH0159216U (en) | ||
JPS5942955U (en) | Object surface defect detection device | |
JPH0260917U (en) | ||
JPH022611U (en) | ||
JPS6295379U (en) | ||
JPH03112758U (en) | ||
JPH0323345U (en) | ||
JPS6199003U (en) | ||
JPH0312518U (en) | ||
JPS62179358U (en) | ||
JPH0226122U (en) | ||
JPS6335135U (en) | ||
JPS648842U (en) |