JPS58163916U - Projection TV lenses - Google Patents

Projection TV lenses

Info

Publication number
JPS58163916U
JPS58163916U JP6126982U JP6126982U JPS58163916U JP S58163916 U JPS58163916 U JP S58163916U JP 6126982 U JP6126982 U JP 6126982U JP 6126982 U JP6126982 U JP 6126982U JP S58163916 U JPS58163916 U JP S58163916U
Authority
JP
Japan
Prior art keywords
lens
projection
meniscus lens
convex
screen
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
Application number
JP6126982U
Other languages
Japanese (ja)
Inventor
京平 福田
Original Assignee
株式会社日立製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP6126982U priority Critical patent/JPS58163916U/en
Publication of JPS58163916U publication Critical patent/JPS58163916U/en
Pending legal-status Critical Current

Links

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案によるレンズを用いたプロジェクション
テレビの構成図、第２図は本考案レンズを用いたときの
収差図である。 １・・・ブラウン管、２・・・スクリーン、３・・・凹
メニスカスレンズ、４・・・凸メニスカスレンズ。FIG. 1 is a block diagram of a projection television using the lens according to the present invention, and FIG. 2 is an aberration diagram when using the lens according to the present invention. 1... Braun tube, 2... Screen, 3... Concave meniscus lens, 4... Convex meniscus lens.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ブラウン管上の像を光学レンズによって拡大投写し、ス
クリーン上に像を得る。投写型テレビにおける拡大レン
ズとして２枚構成レンズを用い、うち一枚のブラウン管
側に位置するレンズはブラウン管側に凸面を有する凹メ
ニスカスレンズを用い、他の一枚のスクリーン側レンズ
はスクリーン側に凸面を有する凸メニスカスレンズを用
いたことを特徴とするプロジェクションテレビ用レンズ
。The image on the cathode ray tube is enlarged and projected using an optical lens to obtain an image on a screen. A two-element lens is used as a magnifying lens in projection televisions, one of which is a concave meniscus lens with a convex surface on the cathode ray tube side, and the other screen side lens is a concave meniscus lens with a convex surface on the screen side. A projection television lens characterized by using a convex meniscus lens having a convex meniscus lens.
JP6126982U 1982-04-28 1982-04-28 Projection TV lenses Pending JPS58163916U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6126982U JPS58163916U (en) 1982-04-28 1982-04-28 Projection TV lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6126982U JPS58163916U (en) 1982-04-28 1982-04-28 Projection TV lenses

Publications (1)

Publication Number Publication Date
JPS58163916U true JPS58163916U (en) 1983-11-01

Family

ID=30071475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6126982U Pending JPS58163916U (en) 1982-04-28 1982-04-28 Projection TV lenses

Country Status (1)

Country Link
JP (1) JPS58163916U (en)

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