JPS597421U - projection lens - Google Patents
projection lensInfo
- Publication number
- JPS597421U JPS597421U JP10060682U JP10060682U JPS597421U JP S597421 U JPS597421 U JP S597421U JP 10060682 U JP10060682 U JP 10060682U JP 10060682 U JP10060682 U JP 10060682U JP S597421 U JPS597421 U JP S597421U
- Authority
- JP
- Japan
- Prior art keywords
- projection lens
- projection
- lens
- ray tube
- cathode ray
- 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
Landscapes
- Lenses (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は螢光体（ＣａＳ：Ｃｅ）のスペクトル分布図、
第２図は投写型ブラウン管に本考案による投影レンズを
配置した時の概略部分断面図、第３図は第２図々示の投
影レンズに内蔵する平行平板ガラスの透過率曲線、第４
図は第３図々示の投影レンズに入射する光エネルギー曲
線図である。
２：投影レンズ、ＬＯ：着色平行平板ガラス、Ａ：着色
平行平板ガラスＬｏ通過後の光エネルギー曲線。Figure 1 is a spectral distribution diagram of fluorescent material (CaS:Ce).
Fig. 2 is a schematic partial cross-sectional view when the projection lens according to the present invention is arranged in a projection type cathode ray tube, Fig. 3 is a transmittance curve of the parallel flat glass built into the projection lens shown in Fig. 2, and Fig. 4 is
The figure is a curve diagram of light energy incident on the projection lens shown in the third figure. 2: Projection lens, LO: Colored parallel flat glass, A: Light energy curve after passing through colored parallel flat glass Lo.
Claims (1)
するための投影レンズにおいて、前記投影レンズ内の入
力レンズの物堅間側に着色光学素子を内蔵したことを特
徴とする投影レンズ。1. A projection lens for enlarging and projecting an image on a projection type cathode ray tube surface onto a screen, characterized in that a colored optical element is incorporated in the object space side of an input lens in the projection lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10060682U JPS597421U (en) | 1982-07-05 | 1982-07-05 | projection lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10060682U JPS597421U (en) | 1982-07-05 | 1982-07-05 | projection lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS597421U true JPS597421U (en) | 1984-01-18 |
Family
ID=30237921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10060682U Pending JPS597421U (en) | 1982-07-05 | 1982-07-05 | projection lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597421U (en) |
-
1982
- 1982-07-05 JP JP10060682U patent/JPS597421U/en active Pending
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