JPS6450907A - Optical displacement meter - Google Patents
Optical displacement meterInfo
- Publication number
- JPS6450907A JPS6450907A JP20849587A JP20849587A JPS6450907A JP S6450907 A JPS6450907 A JP S6450907A JP 20849587 A JP20849587 A JP 20849587A JP 20849587 A JP20849587 A JP 20849587A JP S6450907 A JPS6450907 A JP S6450907A
- Authority
- JP
- Japan
- Prior art keywords
- projecting
- lights
- photosensing
- circuits
- distance
- 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
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
PURPOSE:To enable the accurate detection of a distance to an object of detection in either case when the surface of the object is rough or when it is lustrous, by detecting and selecting levels of reflected lights from two projecting means. CONSTITUTION:A diffused light and parallel spot lights are applied alternately to a distance measuring area from projecting circuits 4 and 5. When there is an object in this area, reflected lights are obtained in photosensing parts 12a and 12b, and 13a and 13b, being adjacent to windows of a shading plate located at equal positions to two projecting means. Outputs of first and second photoelectric conversion means composed of photosensing elements 14 and 15, photosensing circuits 16 and 17 and A/D converters 18 and 19 respectively are given to a microcomputer 20 for signal processing. The projecting circuits 4 and 5 are driven alternately and the total amount of the reflected lights obtained therefrom are detected, while a distance to the object is detected from the ratio between the quantities of received lights thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20849587A JPS6450907A (en) | 1987-08-21 | 1987-08-21 | Optical displacement meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20849587A JPS6450907A (en) | 1987-08-21 | 1987-08-21 | Optical displacement meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6450907A true JPS6450907A (en) | 1989-02-27 |
Family
ID=16557105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20849587A Pending JPS6450907A (en) | 1987-08-21 | 1987-08-21 | Optical displacement meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450907A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3005983U (en) * | 1994-06-10 | 1995-01-17 | ダイトロンテクノロジー株式会社 | Light reflection type substrate detector for substrate transfer robot |
US5453838A (en) * | 1994-06-17 | 1995-09-26 | Ceram Optec Industries, Inc. | Sensing system with a multi-channel fiber optic bundle sensitive probe |
JP2008039602A (en) * | 2006-08-07 | 2008-02-21 | Mitsutoyo Corp | Bundle fiber and photoelectric encoder |
JP2008304229A (en) * | 2007-06-05 | 2008-12-18 | Univ Nihon | Displacement measuring system |
-
1987
- 1987-08-21 JP JP20849587A patent/JPS6450907A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3005983U (en) * | 1994-06-10 | 1995-01-17 | ダイトロンテクノロジー株式会社 | Light reflection type substrate detector for substrate transfer robot |
US5453838A (en) * | 1994-06-17 | 1995-09-26 | Ceram Optec Industries, Inc. | Sensing system with a multi-channel fiber optic bundle sensitive probe |
JP2008039602A (en) * | 2006-08-07 | 2008-02-21 | Mitsutoyo Corp | Bundle fiber and photoelectric encoder |
JP2008304229A (en) * | 2007-06-05 | 2008-12-18 | Univ Nihon | Displacement measuring system |
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