JPH02119235U - - Google Patents
Info
- Publication number
- JPH02119235U JPH02119235U JP2526989U JP2526989U JPH02119235U JP H02119235 U JPH02119235 U JP H02119235U JP 2526989 U JP2526989 U JP 2526989U JP 2526989 U JP2526989 U JP 2526989U JP H02119235 U JPH02119235 U JP H02119235U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- lighting time
- battery
- detection means
- overhead projector
- 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
- 238000001514 detection method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Secondary Cells (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2526989U JPH02119235U (ref) | 1989-03-06 | 1989-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2526989U JPH02119235U (ref) | 1989-03-06 | 1989-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02119235U true JPH02119235U (ref) | 1990-09-26 |
Family
ID=31245859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2526989U Pending JPH02119235U (ref) | 1989-03-06 | 1989-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02119235U (ref) |
-
1989
- 1989-03-06 JP JP2526989U patent/JPH02119235U/ja active Pending
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