JP2528142Y2 - オーバーヘッドプロジェクタ - Google Patents
オーバーヘッドプロジェクタInfo
- Publication number
- JP2528142Y2 JP2528142Y2 JP12662590U JP12662590U JP2528142Y2 JP 2528142 Y2 JP2528142 Y2 JP 2528142Y2 JP 12662590 U JP12662590 U JP 12662590U JP 12662590 U JP12662590 U JP 12662590U JP 2528142 Y2 JP2528142 Y2 JP 2528142Y2
- Authority
- JP
- Japan
- Prior art keywords
- close
- overhead projector
- light source
- present
- film
- 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.)
- Expired - Lifetime
Links
- 239000005357 flat glass Substances 0.000 claims description 13
- 238000005530 etching Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12662590U JP2528142Y2 (ja) | 1990-11-30 | 1990-11-30 | オーバーヘッドプロジェクタ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12662590U JP2528142Y2 (ja) | 1990-11-30 | 1990-11-30 | オーバーヘッドプロジェクタ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0485335U JPH0485335U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-07-24 |
| JP2528142Y2 true JP2528142Y2 (ja) | 1997-03-05 |
Family
ID=31874169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12662590U Expired - Lifetime JP2528142Y2 (ja) | 1990-11-30 | 1990-11-30 | オーバーヘッドプロジェクタ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528142Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1990
- 1990-11-30 JP JP12662590U patent/JP2528142Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0485335U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-07-24 |
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