JPH02129931U - - Google Patents

Info

Publication number
JPH02129931U
JPH02129931U JP3940189U JP3940189U JPH02129931U JP H02129931 U JPH02129931 U JP H02129931U JP 3940189 U JP3940189 U JP 3940189U JP 3940189 U JP3940189 U JP 3940189U JP H02129931 U JPH02129931 U JP H02129931U
Authority
JP
Japan
Prior art keywords
light receiving
display image
receiving element
display
display device
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.)
Granted
Application number
JP3940189U
Other languages
English (en)
Other versions
JPH0740425Y2 (ja
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 filed Critical
Priority to JP1989039401U priority Critical patent/JPH0740425Y2/ja
Priority to EP89106350A priority patent/EP0340485B1/en
Priority to DE68926799T priority patent/DE68926799T2/de
Priority to US07/337,134 priority patent/US5202668A/en
Publication of JPH02129931U publication Critical patent/JPH02129931U/ja
Application granted granted Critical
Publication of JPH0740425Y2 publication Critical patent/JPH0740425Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Instrument Panels (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Description

【図面の簡単な説明】
第1図はこの考案に係る車両用ヘツドアツプ式
表示装置の一実施例を示すブロツク図、第2図は
第1図の要部を抽出して示す回路図、第3図は背
景の明るさを測定する受光素子の配置例を示す概
略構成図、第4図はこの考案の動作を説明するた
めのフローチヤート、第5図は従来の車両用ヘツ
ドアツプ式表示装置の一例を示すブロツク図、第
6図は従来の車両用ヘツドアツプ式表示装置の設
置例を示す概略構成図である。 4…表示器、7…透光性反射板、23…受光素
子。

Claims (1)

    【実用新案登録請求の範囲】
  1. 表示器4の表示像を運転席の前方視野内に配設
    された透光性反射板7に投影表示せしめてなる車
    両用ヘツドアツプ式表示装置において、前記表示
    像の背景の明るさを検出する受光素子23を設け
    、この受光素子の光軸を前記表示像の結像方向に
    一致せしめ、前記受光素子23の検出出力に基づ
    いて前記表示器4の表示像の明るさを制御してな
    ることを特徴とする車両用ヘツドアツプ式表示装
    置。
JP1989039401U 1988-04-12 1989-04-03 車両用ヘッドアップ式表示装置 Expired - Lifetime JPH0740425Y2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1989039401U JPH0740425Y2 (ja) 1989-04-03 1989-04-03 車両用ヘッドアップ式表示装置
EP89106350A EP0340485B1 (en) 1988-04-12 1989-04-11 Control system for head-up display for automotive vehicles
DE68926799T DE68926799T2 (de) 1988-04-12 1989-04-11 Steuerungssystem für Headup-Displays für Kraftfahrzeuge
US07/337,134 US5202668A (en) 1988-04-12 1989-04-12 Control system for a head-up display for automotive vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989039401U JPH0740425Y2 (ja) 1989-04-03 1989-04-03 車両用ヘッドアップ式表示装置

Publications (2)

Publication Number Publication Date
JPH02129931U true JPH02129931U (ja) 1990-10-26
JPH0740425Y2 JPH0740425Y2 (ja) 1995-09-20

Family

ID=31548278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989039401U Expired - Lifetime JPH0740425Y2 (ja) 1988-04-12 1989-04-03 車両用ヘッドアップ式表示装置

Country Status (1)

Country Link
JP (1) JPH0740425Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6250239A (ja) * 1985-08-28 1987-03-04 Nissan Motor Co Ltd 車両用表示装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6250239A (ja) * 1985-08-28 1987-03-04 Nissan Motor Co Ltd 車両用表示装置

Also Published As

Publication number Publication date
JPH0740425Y2 (ja) 1995-09-20

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