JPS6447176U - - Google Patents
Info
- Publication number
- JPS6447176U JPS6447176U JP1987141714U JP14171487U JPS6447176U JP S6447176 U JPS6447176 U JP S6447176U JP 1987141714 U JP1987141714 U JP 1987141714U JP 14171487 U JP14171487 U JP 14171487U JP S6447176 U JPS6447176 U JP S6447176U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- fresnel lens
- lenticular lens
- rear projection
- sheet
- 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
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案の背面投写型プロジエクシヨン
テレビの一実施例を示す図、第２図は実施例にお
ける透過式スクリーンの構造を説明する図、第３
図は実施例における開口部と保護シートの状態を
説明する図、第４図は従来の背面投写型プロジエ
クシヨンテレビの一例を示す図である。
１……キヤビネツト、１ａ……開口部、２ａ…
…フレネルレンズ、２ｂ……レンチキユラーレン
ズ、４……保護シート。
FIG. 1 is a diagram showing an embodiment of the rear projection type projection television of the present invention, FIG. 2 is a diagram illustrating the structure of the transmissive screen in the embodiment, and FIG.
The figure is a diagram illustrating the state of the opening and the protective sheet in the embodiment, and FIG. 4 is a diagram illustrating an example of a conventional rear projection type projection television. 1...cabinet, 1a...opening, 2a...
... Fresnel lens, 2b... Lenticular lens, 4... Protective sheet.
Claims (1)
合わせた２枚構成の透過式スクリーンを備える背
面投写型プロジエクシヨンテレビにおいて、 上記フレネルレンズとレンチキユラーレンズと
の間隙に保護シートを配するとともに、上記フレ
ネルレンズおよびレンチキユラーレンズの縁の周
辺近傍に上記保護シートを引き抜くための開口部
を有することを特徴とする背面投写型プロジエク
シヨンテレビ。[Scope of Claim for Utility Model Registration] In a rear projection projection television equipped with a two-panel transmissive screen consisting of a Fresnel lens and a lenticular lens, which are protected by the gap between the Fresnel lens and the lenticular lens. A rear projection type projection television, characterized in that a sheet is disposed therein and an opening for pulling out the protective sheet is provided near the edges of the Fresnel lens and the lenticular lens.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987141714U JPH0354467Y2 (en) | 1987-09-18 | 1987-09-18 | |
| US07/640,783 US5074644A (en) | 1987-09-18 | 1991-01-14 | Rear projection television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987141714U JPH0354467Y2 (en) | 1987-09-18 | 1987-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6447176U true JPS6447176U (en) | 1989-03-23 |
| JPH0354467Y2 JPH0354467Y2 (en) | 1991-12-02 |
Family
ID=31407030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987141714U Expired JPH0354467Y2 (en) | 1987-09-18 | 1987-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0354467Y2 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5846060U (en) * | 1981-09-24 | 1983-03-28 | 磯村 昌孝 | Diamond-shaped solar heat collector |
| JPS5990836U (en) * | 1982-12-09 | 1984-06-20 | 松下電器産業株式会社 | temperature detector |
| JPS59109333U (en) * | 1983-01-14 | 1984-07-23 | 大日本印刷株式会社 | rear screen |
| JPS59221269A (en) * | 1983-06-01 | 1984-12-12 | 日本板硝子株式会社 | Hard whetstone for glass |
| JPS6061738A (en) * | 1983-09-16 | 1985-04-09 | Hitachi Ltd | Screen in back projecting device |
| JPS613823U (en) * | 1984-06-12 | 1986-01-10 | 住友金属工業株式会社 | Steel members for composite structures |
| JPS61267748A (en) * | 1985-05-23 | 1986-11-27 | Hitachi Ltd | Transmission type screen |
-
1987
- 1987-09-18 JP JP1987141714U patent/JPH0354467Y2/ja not_active Expired
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5846060U (en) * | 1981-09-24 | 1983-03-28 | 磯村 昌孝 | Diamond-shaped solar heat collector |
| JPS5990836U (en) * | 1982-12-09 | 1984-06-20 | 松下電器産業株式会社 | temperature detector |
| JPS59109333U (en) * | 1983-01-14 | 1984-07-23 | 大日本印刷株式会社 | rear screen |
| JPS59221269A (en) * | 1983-06-01 | 1984-12-12 | 日本板硝子株式会社 | Hard whetstone for glass |
| JPS6061738A (en) * | 1983-09-16 | 1985-04-09 | Hitachi Ltd | Screen in back projecting device |
| JPS613823U (en) * | 1984-06-12 | 1986-01-10 | 住友金属工業株式会社 | Steel members for composite structures |
| JPS61267748A (en) * | 1985-05-23 | 1986-11-27 | Hitachi Ltd | Transmission type screen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0354467Y2 (en) | 1991-12-02 |
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