JPH0424741U - - Google Patents
Info
- Publication number
- JPH0424741U JPH0424741U JP6484290U JP6484290U JPH0424741U JP H0424741 U JPH0424741 U JP H0424741U JP 6484290 U JP6484290 U JP 6484290U JP 6484290 U JP6484290 U JP 6484290U JP H0424741 U JPH0424741 U JP H0424741U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- projection screen
- fresnel lens
- surrounding frame
- projection
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990064842U JP2519836Y2 (ja) | 1990-06-19 | 1990-06-19 | 投写スクリーン |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990064842U JP2519836Y2 (ja) | 1990-06-19 | 1990-06-19 | 投写スクリーン |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0424741U true JPH0424741U (sv) | 1992-02-27 |
JP2519836Y2 JP2519836Y2 (ja) | 1996-12-11 |
Family
ID=31596142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990064842U Expired - Lifetime JP2519836Y2 (ja) | 1990-06-19 | 1990-06-19 | 投写スクリーン |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2519836Y2 (sv) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02120729A (ja) * | 1988-10-29 | 1990-05-08 | Arisawa Mfg Co Ltd | 透過型スクリーン用フレネルレンズスクリーン |
-
1990
- 1990-06-19 JP JP1990064842U patent/JP2519836Y2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02120729A (ja) * | 1988-10-29 | 1990-05-08 | Arisawa Mfg Co Ltd | 透過型スクリーン用フレネルレンズスクリーン |
Also Published As
Publication number | Publication date |
---|---|
JP2519836Y2 (ja) | 1996-12-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |