JPH01137031U - - Google Patents
Info
- Publication number
- JPH01137031U JPH01137031U JP5532888U JP5532888U JPH01137031U JP H01137031 U JPH01137031 U JP H01137031U JP 5532888 U JP5532888 U JP 5532888U JP 5532888 U JP5532888 U JP 5532888U JP H01137031 U JPH01137031 U JP H01137031U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical system
- blocks
- block
- detectable area
- 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
- 230000003287 optical effect Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000003247 decreasing effect Effects 0.000 claims 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5532888U JPH01137031U (de) | 1987-11-26 | 1988-04-25 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17989287 | 1987-11-26 | ||
| JP5532888U JPH01137031U (de) | 1987-11-26 | 1988-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01137031U true JPH01137031U (de) | 1989-09-19 |
Family
ID=31718139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5532888U Pending JPH01137031U (de) | 1987-11-26 | 1988-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01137031U (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108131A (en) * | 1979-02-13 | 1980-08-19 | Omron Tateisi Electronics Co | Reflection type photoelectric switch |
-
1988
- 1988-04-25 JP JP5532888U patent/JPH01137031U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108131A (en) * | 1979-02-13 | 1980-08-19 | Omron Tateisi Electronics Co | Reflection type photoelectric switch |