JPH0328885U - - Google Patents
Info
- Publication number
- JPH0328885U JPH0328885U JP8908489U JP8908489U JPH0328885U JP H0328885 U JPH0328885 U JP H0328885U JP 8908489 U JP8908489 U JP 8908489U JP 8908489 U JP8908489 U JP 8908489U JP H0328885 U JPH0328885 U JP H0328885U
- Authority
- JP
- Japan
- Prior art keywords
- projection
- coupler
- filled
- lens system
- cooling liquid
- 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
- 230000031700 light absorption Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 claims 4
- 239000011521 glass Substances 0.000 claims 2
- 239000011358 absorbing material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案実施例のプロジエクシヨンテレ
ビ用投写装置を示す組立側面図、第２図は同装置
の分解斜視図、第３図は本考案の他の実施例を示
す図、第４図は同実施例における光吸収部材を拡
大して示す図、第５図は従来のプロジエクシヨン
テレビ用投写装置の一例を示す図である。
１……ＣＲＴ投写管、２……カプラー、３……
メニスカスレンズ、８……光吸収層、８′……光
吸収部材、８ａ′……透過孔。
FIG. 1 is an assembled side view showing a projection device for projection television according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same device, FIG. 3 is a diagram showing another embodiment of the present invention, and FIG. This figure is an enlarged view of the light absorbing member in the same embodiment, and FIG. 5 is a view showing an example of a conventional projection apparatus for projection television. 1...CRT projection tube, 2...Coupler, 3...
Meniscus lens, 8... Light absorption layer, 8'... Light absorption member, 8a'... Transmission hole.
Claims (1)
の間にカプラーを配設し、該カプラー内に冷却液
を充填して投写管とレンズ系とを光学的に結合す
るようにしたプロジエクシヨンテレビ用投写装置
において、 前記カプラーの冷却液が充填されている部分の
内面に光吸収物質の層を形成してなることを特徴
とするプロジエクシヨンテレビ用投写装置。 (2) 投写管の前面ガラスと投影用のレンズ系と
の間にカプラーを配設し、該カプラー内に冷却液
を充填して投写管とレンズ系とを光学的に結合す
るようにしたプロジエクシヨンテレビ用投写装置
において、 前記カプラーの冷却液が充填されている部分の
内面に光吸収部材を配設してなることを特徴とす
るプロジエクシヨンテレビ用投写装置。 (3) 前記光吸収部材は透過孔を有することを特
徴とする請求項２記載のプロジエクシヨンテレビ
用投写装置。[Scope of Claim for Utility Model Registration] (1) A coupler is disposed between the front glass of the projection tube and the projection lens system, and a cooling liquid is filled in the coupler to connect the projection tube and the lens system optically. A projection device for a projection television, characterized in that a layer of a light absorbing material is formed on the inner surface of a portion of the coupler filled with a cooling liquid. Projection device. (2) A project in which a coupler is disposed between the front glass of the projection tube and the projection lens system, and the coupler is filled with a cooling liquid to optically couple the projection tube and the lens system. A projection device for projection television, characterized in that a light absorbing member is disposed on the inner surface of a portion of the coupler filled with cooling liquid. (3) The projection device for projection television according to claim 2, wherein the light absorption member has a transmission hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8908489U JPH0328885U (en) | 1989-07-31 | 1989-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8908489U JPH0328885U (en) | 1989-07-31 | 1989-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0328885U true JPH0328885U (en) | 1991-03-22 |
Family
ID=31638679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8908489U Pending JPH0328885U (en) | 1989-07-31 | 1989-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328885U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01143119A (en) * | 1987-11-27 | 1989-06-05 | Matsushita Electric Ind Co Ltd | Television picture projector |
-
1989
- 1989-07-31 JP JP8908489U patent/JPH0328885U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01143119A (en) * | 1987-11-27 | 1989-06-05 | Matsushita Electric Ind Co Ltd | Television picture projector |