JPH025429Y2 - - Google Patents
Info
- Publication number
- JPH025429Y2 JPH025429Y2 JP9564183U JP9564183U JPH025429Y2 JP H025429 Y2 JPH025429 Y2 JP H025429Y2 JP 9564183 U JP9564183 U JP 9564183U JP 9564183 U JP9564183 U JP 9564183U JP H025429 Y2 JPH025429 Y2 JP H025429Y2
- Authority
- JP
- Japan
- Prior art keywords
- eraser
- light beam
- length
- pen
- objects
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 description 19
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9564183U JPS603408U (ja) | 1983-06-21 | 1983-06-21 | 物体検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9564183U JPS603408U (ja) | 1983-06-21 | 1983-06-21 | 物体検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS603408U JPS603408U (ja) | 1985-01-11 |
| JPH025429Y2 true JPH025429Y2 (cs) | 1990-02-08 |
Family
ID=30228310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9564183U Granted JPS603408U (ja) | 1983-06-21 | 1983-06-21 | 物体検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603408U (cs) |
-
1983
- 1983-06-21 JP JP9564183U patent/JPS603408U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS603408U (ja) | 1985-01-11 |
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