JPS5639517A - Position detecting method in optical scanning - Google Patents
Position detecting method in optical scanningInfo
- Publication number
- JPS5639517A JPS5639517A JP11493579A JP11493579A JPS5639517A JP S5639517 A JPS5639517 A JP S5639517A JP 11493579 A JP11493579 A JP 11493579A JP 11493579 A JP11493579 A JP 11493579A JP S5639517 A JPS5639517 A JP S5639517A
- Authority
- JP
- Japan
- Prior art keywords
- rotary mirror
- interference fringes
- optical scanning
- specimen
- photodetectors
- 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
- 230000003287 optical effect Effects 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 abstract 3
- 238000007689 inspection Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11493579A JPS5639517A (en) | 1979-09-07 | 1979-09-07 | Position detecting method in optical scanning |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11493579A JPS5639517A (en) | 1979-09-07 | 1979-09-07 | Position detecting method in optical scanning |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5639517A true JPS5639517A (en) | 1981-04-15 |
JPS6217725B2 JPS6217725B2 (enrdf_load_stackoverflow) | 1987-04-20 |
Family
ID=14650295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11493579A Granted JPS5639517A (en) | 1979-09-07 | 1979-09-07 | Position detecting method in optical scanning |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639517A (enrdf_load_stackoverflow) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6333834A (ja) * | 1986-07-28 | 1988-02-13 | Canon Inc | 表面状態検査装置 |
JPS63124941A (ja) * | 1986-11-14 | 1988-05-28 | Hitachi Electronics Eng Co Ltd | 走査位置検出方式 |
US4834477A (en) * | 1984-07-05 | 1989-05-30 | Ricoh Company, Ltd. | Method of controlling the temperature of semiconductor laser in an optical device |
-
1979
- 1979-09-07 JP JP11493579A patent/JPS5639517A/ja active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4834477A (en) * | 1984-07-05 | 1989-05-30 | Ricoh Company, Ltd. | Method of controlling the temperature of semiconductor laser in an optical device |
JPS6333834A (ja) * | 1986-07-28 | 1988-02-13 | Canon Inc | 表面状態検査装置 |
JPS63124941A (ja) * | 1986-11-14 | 1988-05-28 | Hitachi Electronics Eng Co Ltd | 走査位置検出方式 |
Also Published As
Publication number | Publication date |
---|---|
JPS6217725B2 (enrdf_load_stackoverflow) | 1987-04-20 |
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