JPS6122015U - image projection device - Google Patents

image projection device

Info

Publication number
JPS6122015U
JPS6122015U JP10520684U JP10520684U JPS6122015U JP S6122015 U JPS6122015 U JP S6122015U JP 10520684 U JP10520684 U JP 10520684U JP 10520684 U JP10520684 U JP 10520684U JP S6122015 U JPS6122015 U JP S6122015U
Authority
JP
Japan
Prior art keywords
lens
inclined surface
projection device
image projection
lens barrel
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
JP10520684U
Other languages
Japanese (ja)
Inventor
繁 森
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 JP10520684U priority Critical patent/JPS6122015U/en
Publication of JPS6122015U publication Critical patent/JPS6122015U/en
Pending legal-status Critical Current

Links

Landscapes

  • Mounting And Adjusting Of Optical Elements (AREA)
  • Lens Barrels (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (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

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

第１図は従来技術の画像投写装置の要部断面図、第２図
〜第４図は本考案の実施例図であり、第２図はレンズ素
子の要部断面図、第３図、第４図は鏡胴によりレンズ素
子をブラウン管に押圧している説明図である。 １：ブラウン管、２：光学的透明弾性体、３，３′：レ
ンズ素子、７：鏡胴。FIG. 1 is a sectional view of a main part of a conventional image projection device, FIGS. 2 to 4 are embodiments of the present invention, FIG. 2 is a sectional view of a main part of a lens element, and FIGS. FIG. 4 is an explanatory view of the lens element being pressed against the cathode ray tube by the lens barrel. 1: Braun tube, 2: Optically transparent elastic body, 3, 3': Lens element, 7: Lens barrel.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数のレンズ素子を鏡胴内に配置した投写レンズの内の
１枚のレンズ素子を光学的透明弾性体でブラウン管と結
合した画像投写装置において、前記１枚のレンズ素子の
１つのレンズ面の１部を、光軸を通る断面で見て階段状
に形成し、かつ前記階段状に成形した１つの面を傾斜面
とし、一方前記鏡胴の端而も傾斜面に形成し、前記レン
ズ素子の傾斜面と鏡胴の傾斜面を互いにつきあわせて、
鏡胴を取付けた時この鏡胴で前記レンズ素子がブラウン
管に対して押圧される様にしたことを特徴とする画像投
写装置。In an image projection device in which one lens element of a projection lens in which a plurality of lens elements are arranged in a lens barrel is coupled to a cathode ray tube using an optically transparent elastic body, one of the lens surfaces of the one lens element The part is formed into a step shape when viewed in a cross section passing through the optical axis, and one surface formed in the step shape is an inclined surface, while the end of the lens barrel is also formed into an inclined surface, and the lens element Align the inclined surface and the inclined surface of the lens barrel with each other,
An image projection device characterized in that the lens element is pressed against a cathode ray tube by the lens barrel when the lens barrel is attached.
JP10520684U 1984-07-13 1984-07-13 image projection device Pending JPS6122015U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10520684U JPS6122015U (en) 1984-07-13 1984-07-13 image projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10520684U JPS6122015U (en) 1984-07-13 1984-07-13 image projection device

Publications (1)

Publication Number Publication Date
JPS6122015U true JPS6122015U (en) 1986-02-08

Family

ID=30664541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10520684U Pending JPS6122015U (en) 1984-07-13 1984-07-13 image projection device

Country Status (1)

Country Link
JP (1) JPS6122015U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369479A (en) * 1976-11-30 1978-06-20 Matsushita Electric Works Ltd Color controllable lighting apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5369479A (en) * 1976-11-30 1978-06-20 Matsushita Electric Works Ltd Color controllable lighting apparatus

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