JPS6228351U - - Google Patents
Info
- Publication number
- JPS6228351U JPS6228351U JP12037685U JP12037685U JPS6228351U JP S6228351 U JPS6228351 U JP S6228351U JP 12037685 U JP12037685 U JP 12037685U JP 12037685 U JP12037685 U JP 12037685U JP S6228351 U JPS6228351 U JP S6228351U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- projection
- lens
- projection tube
- gasket
- 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
- 239000000110 cooling liquid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Lens Barrels (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
第１図は全体の分解斜視図、第２図は同上の組
立状態の断面図、第３図はフレーム部分の断面斜
視図、第４図はフレームにレンズを取付けた状態
の正面図、第５図、第６図は第２図における一部
分の拡大断面図、第７図は従来例の断面図である
。
１……投写管、２……フレーム、３，４，１２
……パツキン、５……押え板、９……スプリング
、１１……レンズ、１３……レンズ取付板。
Fig. 1 is an exploded perspective view of the whole, Fig. 2 is a sectional view of the same as above in an assembled state, Fig. 3 is a sectional perspective view of the frame portion, Fig. 4 is a front view of the lens attached to the frame, and Fig. 5 6 is an enlarged sectional view of a portion of FIG. 2, and FIG. 7 is a sectional view of a conventional example. 1... Projection tube, 2... Frame, 3, 4, 12
...Packskin, 5...Press plate, 9...Spring, 11...Lens, 13...Lens mounting plate.
Claims (1)
該フレームの一面側に固定された投写管と、前記
フレームの前記投写管が固定された側とは反対側
の開口部にパツキンを介して鍔部が載置されたレ
ンズと、該レンズを前記フレームに前記パツキン
を押し潰して水密状態で取付たるための押え板と
より構成し、前記レンズと前記フレームに形成し
た突起と当接する部分に小突起を形成し、前記投
写管の投写面とレンズとの空間に充填された冷却
液が投写管の発熱により膨張し、その熱によりレ
ンズが膨張しても前記小突起がその膨張を吸収す
るようにしたことを特徴とするプロジエクシヨン
テレビにおける投写装置。 A frame made of a material with good heat conduction,
a projection tube fixed to one side of the frame; a lens whose flange is placed via a gasket in an opening on the opposite side of the frame to the side to which the projection tube is fixed; It is composed of a holding plate for crushing the gasket and attaching it to the frame in a watertight state, and a small protrusion is formed at a portion that contacts the protrusion formed on the lens and the frame, and the projection surface of the projection tube and the lens are formed. Projection in a projection television, characterized in that even if the cooling liquid filled in the space expands due to the heat generated by the projection tube and the lens expands due to the heat, the small protrusion absorbs the expansion. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985120376U JPH0541492Y2 (en) | 1985-08-06 | 1985-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985120376U JPH0541492Y2 (en) | 1985-08-06 | 1985-08-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6228351U true JPS6228351U (en) | 1987-02-20 |
| JPH0541492Y2 JPH0541492Y2 (en) | 1993-10-20 |
Family
ID=31008635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985120376U Expired - Lifetime JPH0541492Y2 (en) | 1985-08-06 | 1985-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0541492Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57138603A (en) * | 1981-02-19 | 1982-08-27 | Olympus Optical Co Ltd | Plastic lens which self-absorbs deformation |
| JPS5928107A (en) * | 1982-08-06 | 1984-02-14 | Olympus Optical Co Ltd | Lens holding device |
| JPS59195660U (en) * | 1983-06-14 | 1984-12-26 | 三菱電機株式会社 | cathode ray tube equipment |
-
1985
- 1985-08-06 JP JP1985120376U patent/JPH0541492Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57138603A (en) * | 1981-02-19 | 1982-08-27 | Olympus Optical Co Ltd | Plastic lens which self-absorbs deformation |
| JPS5928107A (en) * | 1982-08-06 | 1984-02-14 | Olympus Optical Co Ltd | Lens holding device |
| JPS59195660U (en) * | 1983-06-14 | 1984-12-26 | 三菱電機株式会社 | cathode ray tube equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0541492Y2 (en) | 1993-10-20 |