JPS6435305A - Three-dimensional plane measuring instrument - Google Patents
Three-dimensional plane measuring instrumentInfo
- Publication number
- JPS6435305A JPS6435305A JP19223687A JP19223687A JPS6435305A JP S6435305 A JPS6435305 A JP S6435305A JP 19223687 A JP19223687 A JP 19223687A JP 19223687 A JP19223687 A JP 19223687A JP S6435305 A JPS6435305 A JP S6435305A
- Authority
- JP
- Japan
- Prior art keywords
- parallel
- object plane
- spots
- plane
- detecting elements
- 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 obtain accurate three-dimensional plane data by calculating the distance from a reference plane to an object plane and the extent of inclination of the object plane from pieces of position detection information on the four intersections of parallel crosses obtained by a couple of optical position detecting elements. CONSTITUTION:Light beams emitted by light emission sources LD1 and LD2 are converted optically by cylindrical lenses CL1 and CL2 into belt-like parallel light beams to form parallel spots SP1 and SP2 on the surface DP to be measured. The couple of linear optical position detecting elements PSD1 and PSD2 are arranged for those parallel spots SP1 and SP2 so that their visual fields cross said spots on the object plane DP in parallel crosses, for example, at right angles. Then an arithmetic means calculates the distance from the reference plane to the object plane DP and the extent of inclination of the object plane from the pieces of position detection information on the four intersections (1, 1), (1, 2), (2, 1), and (2, 2) of the parallel crosses by those position detecting elements PSD1 and PSD2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19223687A JPS6435305A (en) | 1987-07-31 | 1987-07-31 | Three-dimensional plane measuring instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19223687A JPS6435305A (en) | 1987-07-31 | 1987-07-31 | Three-dimensional plane measuring instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6435305A true JPS6435305A (en) | 1989-02-06 |
Family
ID=16287916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19223687A Pending JPS6435305A (en) | 1987-07-31 | 1987-07-31 | Three-dimensional plane measuring instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6435305A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4107177A1 (en) * | 1990-03-20 | 1991-09-26 | Mitsubishi Electric Corp | VEHICLE / VEHICLE DISTANCE MEASURING DEVICE |
US5161632A (en) * | 1990-06-01 | 1992-11-10 | Mitsubishi Denki K.K. | Tracking control device for a vehicle |
US5168355A (en) * | 1990-09-04 | 1992-12-01 | Mitsubishi Denki K.K. | Apparatus for detecting distance between cars |
US5216408A (en) * | 1990-06-06 | 1993-06-01 | Mitsubishi Denki K.K. | Inter-vehicle distance detecting device for automatic tracking of a preceding car |
US5237406A (en) * | 1991-02-08 | 1993-08-17 | Mitsubishi Denki K.K. | Inter-car distance detecting device |
US5253050A (en) * | 1991-03-20 | 1993-10-12 | Mitsubishi Denki K.K. | Distance measuring device for measuring the distance between vehicles |
JPH0666518A (en) * | 1992-08-24 | 1994-03-08 | Hamamatsu Photonics Kk | Position detector |
US5303019A (en) * | 1991-12-09 | 1994-04-12 | Mitsubishi Denki Kabushiki Kaisha | Inter-vehicle distance measuring device |
US5369590A (en) * | 1992-04-20 | 1994-11-29 | Mitsubishi Denki Kabushiki Kaisha | Inter-vehicle distance detecting device |
US6856388B2 (en) * | 2000-05-30 | 2005-02-15 | Carl Zeiss Jena Gmbh | Optical sensor for measuring the distance and/or inclination of a surface |
-
1987
- 1987-07-31 JP JP19223687A patent/JPS6435305A/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4107177A1 (en) * | 1990-03-20 | 1991-09-26 | Mitsubishi Electric Corp | VEHICLE / VEHICLE DISTANCE MEASURING DEVICE |
DE4107177C2 (en) * | 1990-03-20 | 1993-10-28 | Mitsubishi Electric Corp | Vehicle / vehicle distance measuring device |
US5161632A (en) * | 1990-06-01 | 1992-11-10 | Mitsubishi Denki K.K. | Tracking control device for a vehicle |
US5216408A (en) * | 1990-06-06 | 1993-06-01 | Mitsubishi Denki K.K. | Inter-vehicle distance detecting device for automatic tracking of a preceding car |
US5168355A (en) * | 1990-09-04 | 1992-12-01 | Mitsubishi Denki K.K. | Apparatus for detecting distance between cars |
US5237406A (en) * | 1991-02-08 | 1993-08-17 | Mitsubishi Denki K.K. | Inter-car distance detecting device |
US5253050A (en) * | 1991-03-20 | 1993-10-12 | Mitsubishi Denki K.K. | Distance measuring device for measuring the distance between vehicles |
US5303019A (en) * | 1991-12-09 | 1994-04-12 | Mitsubishi Denki Kabushiki Kaisha | Inter-vehicle distance measuring device |
US5369590A (en) * | 1992-04-20 | 1994-11-29 | Mitsubishi Denki Kabushiki Kaisha | Inter-vehicle distance detecting device |
JPH0666518A (en) * | 1992-08-24 | 1994-03-08 | Hamamatsu Photonics Kk | Position detector |
US6856388B2 (en) * | 2000-05-30 | 2005-02-15 | Carl Zeiss Jena Gmbh | Optical sensor for measuring the distance and/or inclination of a surface |
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