JPH03110485U - - Google Patents

Info

Publication number
JPH03110485U
JPH03110485U JP1842090U JP1842090U JPH03110485U JP H03110485 U JPH03110485 U JP H03110485U JP 1842090 U JP1842090 U JP 1842090U JP 1842090 U JP1842090 U JP 1842090U JP H03110485 U JPH03110485 U JP H03110485U
Authority
JP
Japan
Prior art keywords
brightness
light
display
control device
reduce
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
JP1842090U
Other languages
English (en)
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 JP1842090U priority Critical patent/JPH03110485U/ja
Publication of JPH03110485U publication Critical patent/JPH03110485U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す概略説明図、
第２図は同上における調光動作を示すグラフ、第
３図は従来の調光動作を示すグラフである。 １……コンバイナ、４……プロジエクタ、５…
…表示体、７……駆動回路、９……表示像、１０
……風景、１１……光センサ、１２……輝度調整
回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 外光の明るさが低下した場合には応答時間Ｔｄ
    をもつて表示光の明るさを上昇させ、前記外光の
    明るさが上昇した場合には応答時間Ｔｒをもつて
    前記表示光の明るさを低下させることにより前記
    外光の影響を受ける位置に表示される表示像の表
    示コントラスト比がほぼ一定の値となるよう調整
    する輝度調整回路を有する調光装置において、前
    記応答時間Ｔｄ，Ｔｒを、８００ｍｓ≧Ｔｄ＞Ｔ
    ｒ≧２００ｍｓとなるように設定したことを特徴
    とする調光装置。
JP1842090U 1990-02-26 1990-02-26 Pending JPH03110485U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1842090U JPH03110485U (ja) 1990-02-26 1990-02-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1842090U JPH03110485U (ja) 1990-02-26 1990-02-26

Publications (1)

Publication Number Publication Date
JPH03110485U true JPH03110485U (ja) 1991-11-13

Family

ID=31521578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1842090U Pending JPH03110485U (ja) 1990-02-26 1990-02-26

Country Status (1)

Country Link
JP (1) JPH03110485U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52125870A (en) * 1976-04-14 1977-10-22 Toshiba Corp Crushing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52125870A (en) * 1976-04-14 1977-10-22 Toshiba Corp Crushing device

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