JPH0157732U - - Google Patents
Info
- Publication number
- JPH0157732U JPH0157732U JP1988085142U JP8514288U JPH0157732U JP H0157732 U JPH0157732 U JP H0157732U JP 1988085142 U JP1988085142 U JP 1988085142U JP 8514288 U JP8514288 U JP 8514288U JP H0157732 U JPH0157732 U JP H0157732U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- screen member
- light source
- source side
- arched shape
- 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 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988085142U JPH0157732U (cs) | 1988-06-29 | 1988-06-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988085142U JPH0157732U (cs) | 1988-06-29 | 1988-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0157732U true JPH0157732U (cs) | 1989-04-11 |
Family
ID=31309818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988085142U Pending JPH0157732U (cs) | 1988-06-29 | 1988-06-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0157732U (cs) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2500511A (en) * | 1944-07-10 | 1950-03-14 | Reliephographie Soc Pour L Exp | Relief photograph having reflecting back |
-
1988
- 1988-06-29 JP JP1988085142U patent/JPH0157732U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2500511A (en) * | 1944-07-10 | 1950-03-14 | Reliephographie Soc Pour L Exp | Relief photograph having reflecting back |
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