JPH0337434U - - Google Patents
Info
- Publication number
- JPH0337434U JPH0337434U JP9668089U JP9668089U JPH0337434U JP H0337434 U JPH0337434 U JP H0337434U JP 9668089 U JP9668089 U JP 9668089U JP 9668089 U JP9668089 U JP 9668089U JP H0337434 U JPH0337434 U JP H0337434U
- Authority
- JP
- Japan
- Prior art keywords
- projection
- lens
- optical unit
- focal length
- circuit
- 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 7
- 238000005259 measurement Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Focusing (AREA)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9668089U JPH0337434U (fr) | 1989-08-21 | 1989-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9668089U JPH0337434U (fr) | 1989-08-21 | 1989-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0337434U true JPH0337434U (fr) | 1991-04-11 |
Family
ID=31645868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9668089U Pending JPH0337434U (fr) | 1989-08-21 | 1989-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0337434U (fr) |
-
1989
- 1989-08-21 JP JP9668089U patent/JPH0337434U/ja active Pending
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