JPS6271608U - - Google Patents
Info
- Publication number
- JPS6271608U JPS6271608U JP16382685U JP16382685U JPS6271608U JP S6271608 U JPS6271608 U JP S6271608U JP 16382685 U JP16382685 U JP 16382685U JP 16382685 U JP16382685 U JP 16382685U JP S6271608 U JPS6271608 U JP S6271608U
- Authority
- JP
- Japan
- Prior art keywords
- crt
- holder
- lens
- liquid
- projector
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Lens Barrels (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
第１図はこの考案に係るプロジエクタ用光学装
置をＣＲＴに取付けた状態を示す概略側面図、第
２図はこの考案に係る保持体を示す概略斜視図、
第３図ａ及びｂは夫々この考案に係るプロジエク
タ用光学装置の封印手段を構成する円筒シール体
及び角形シール体を示す概略斜視図、第４図ａ及
びｂは夫々プロジエクタを示す構成図及びＡ―Ａ
矢視図、第５図は従来型のプロジエクタ用光学装
置をＣＲＴに取付けた状態を示す概略側面図、第
６図は従来型のプロジエクタ用光学装置に取付け
られている封印手段を示す概略斜視図である。
６……ＣＲＴ、３……ＣＲＴホルダ、８……レ
ンズ群、２……レンズホルダ、５……ＣＲＴレン
ズ、１……保持体、７……液体、４……封印手段
、４ａ……円筒シール体、４ｂ……角形シール体
。
FIG. 1 is a schematic side view showing a projector optical device according to this invention attached to a CRT, FIG. 2 is a schematic perspective view showing a holder according to this invention,
3A and 3B are schematic perspective views showing a cylindrical seal body and a square seal body, respectively, constituting the sealing means of the optical device for a projector according to the invention, and FIGS. 4A and 4B are a configuration diagram showing the projector, respectively, and A -A
5 is a schematic side view showing a state in which a conventional optical device for a projector is attached to a CRT, and FIG. 6 is a schematic perspective view showing a sealing means attached to a conventional optical device for a projector. It is. 6...CRT, 3...CRT holder, 8...Lens group, 2...Lens holder, 5...CRT lens, 1...Holder, 7...Liquid, 4...Sealing means, 4a...Cylinder Seal body, 4b...square seal body.
Claims (1)
複数のレンズからなるレンズ群と、このレンズ群
を固定・保持し、ＣＲＴホルダに螺着されたレン
ズホルダと、前記ＣＲＴ前面側とレンズ群との間
に位置するＣＲＴレンズと、このＣＲＴレンズを
固定・保持するため、前記ＣＲＴホルダとレンズ
ホルダとの間に設けた保持体と、ＣＲＴレンズ、
ＣＲＴホルダ及びＣＲＴ前面によつて形成される
空間に充填されそのＣＲＴレンズと同一屈折率を
有する液体と、この液体がＣＲＴレンズとＣＲＴ
ホルダとの間並びにＣＲＴ前面とＣＲＴホルダと
の間から漏洩しないように配設した封印手段とを
備え、ＣＲＴ画面上の画像をスクリーン上に拡大
・投写させるプロジエクタ用光学装置において、 前記封印手段が、ＣＲＴレンズとＣＲＴホルダ
との間から前記液体が漏洩するのを防止する円筒
シール体と、前記ＣＲＴ前面側とＣＲＴホルダと
の間から前記液体が漏洩するのを防止する角形シ
ール体とで構成されたことを特徴とするプロジエ
クタ用光学装置。[Claims for Utility Model Registration] A CRT holder fixed to a fixed part of a CRT;
A lens group consisting of a plurality of lenses, a lens holder that fixes and holds this lens group and is screwed onto a CRT holder, a CRT lens located between the front side of the CRT and the lens group, and this CRT lens. A holder provided between the CRT holder and the lens holder to fix and hold the CRT lens,
A liquid that fills the space formed by the CRT holder and the front surface of the CRT and has the same refractive index as the CRT lens;
An optical device for a projector that enlarges and projects an image on a CRT screen onto the screen, comprising a sealing means disposed to prevent leakage from between the CRT holder and between the front surface of the CRT and the CRT holder, wherein the sealing means is , a cylindrical seal body that prevents the liquid from leaking between the CRT lens and the CRT holder, and a rectangular seal body that prevents the liquid from leaking between the CRT front side and the CRT holder. An optical device for a projector, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16382685U JPS6271608U (en) | 1985-10-25 | 1985-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16382685U JPS6271608U (en) | 1985-10-25 | 1985-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6271608U true JPS6271608U (en) | 1987-05-07 |
Family
ID=31092383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16382685U Pending JPS6271608U (en) | 1985-10-25 | 1985-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6271608U (en) |
-
1985
- 1985-10-25 JP JP16382685U patent/JPS6271608U/ja active Pending