JPH0467691U - - Google Patents

Info

Publication number
JPH0467691U
JPH0467691U JP11101390U JP11101390U JPH0467691U JP H0467691 U JPH0467691 U JP H0467691U JP 11101390 U JP11101390 U JP 11101390U JP 11101390 U JP11101390 U JP 11101390U JP H0467691 U JPH0467691 U JP H0467691U
Authority
JP
Japan
Prior art keywords
light source
projection light
power
discharge lamp
supply circuit
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
JP11101390U
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 JP11101390U priority Critical patent/JPH0467691U/ja
Publication of JPH0467691U publication Critical patent/JPH0467691U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal Display Device Control (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Description

【図面の簡単な説明】
第１図は本考案の投写用光源装置の一実施例の
回路ブロツク図、第２図は点灯積算時間のオンス
クリーン表示を示す図である。 ６……高圧放電灯、７……点灯判定部、８……
カウンタ、９……記憶装置、１２……文字表示回
路。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 電源オン操作により光源用電源回路を給電
    駆動し、前記電源回路の出力で投写光源用の放電
    灯を点灯駆動し、前記オフ操作により前記電源回
    路の給電を停止し、前記電源回路の出力をオフし
    て前記放電灯を消灯する投写光源装置において、 前記放電灯の点灯駆動時間を積算して計数する
    カウンタと、このカウンタにより計数された時間
    を表示する表示手段とを備える投写用光源装置。 (2) 前記表示手段は前記時間の表示をオンスク
    リーン表示により行う文字表示回路を含む請求項
    １記載の投写用光源装置。
JP11101390U 1990-10-22 1990-10-22 Pending JPH0467691U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11101390U JPH0467691U (ja) 1990-10-22 1990-10-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11101390U JPH0467691U (ja) 1990-10-22 1990-10-22

Publications (1)

Publication Number Publication Date
JPH0467691U true JPH0467691U (ja) 1992-06-16

Family

ID=31858421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11101390U Pending JPH0467691U (ja) 1990-10-22 1990-10-22

Country Status (1)

Country Link
JP (1) JPH0467691U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007034263A (ja) * 2005-06-23 2007-02-08 Sanyo Electric Co Ltd 投射型映像表示装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH045622A (ja) * 1990-04-20 1992-01-09 Matsushita Electric Ind Co Ltd 液晶光源モニタ回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH045622A (ja) * 1990-04-20 1992-01-09 Matsushita Electric Ind Co Ltd 液晶光源モニタ回路

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007034263A (ja) * 2005-06-23 2007-02-08 Sanyo Electric Co Ltd 投射型映像表示装置
JP4619310B2 (ja) * 2005-06-23 2011-01-26 三洋電機株式会社 投射型映像表示装置
US8162490B2 (en) 2005-06-23 2012-04-24 Sanyo Electric Co., Ltd. Projection type video display apparatus

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