JPS58126440U - Camera viewfinder display device - Google Patents

Camera viewfinder display device

Info

Publication number
JPS58126440U
JPS58126440U JP2380482U JP2380482U JPS58126440U JP S58126440 U JPS58126440 U JP S58126440U JP 2380482 U JP2380482 U JP 2380482U JP 2380482 U JP2380482 U JP 2380482U JP S58126440 U JPS58126440 U JP S58126440U
Authority
JP
Japan
Prior art keywords
brightness
display element
display device
camera
display
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
JP2380482U
Other languages
Japanese (ja)
Other versions
JPH0452737Y2 (en
Inventor
武夫 小林
Original Assignee
旭光学工業株式会社
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 旭光学工業株式会社 filed Critical 旭光学工業株式会社
Priority to JP2380482U priority Critical patent/JPS58126440U/en
Publication of JPS58126440U publication Critical patent/JPS58126440U/en
Application granted granted Critical
Publication of JPH0452737Y2 publication Critical patent/JPH0452737Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Indication In Cameras, And Counting Of Exposures (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図は本考案の一実施例を示すブロック図、第２図は
その回路図、第３．　４．　５．　６図は各部の波形図
である。 １・・・発振回路、２・・・タイミングパルス発生回路
、３・・・ＣＰＵ　（中央処理装置）、４・・・光電変
換回路、５・・・コンパレータ、６・・・ラッｆ、ｏル
ス回路、７・・・ディジタル・アナログ変換回路（Ｄ／
Ａ変換回路）、８・・侶ビットバイナリアップカウンタ
、９・・・Ｂｖレジスタ、１０・・・ディジタルヒステ
リシスコンパレータ回路、１１・・・表示情報レジスタ
、１２・・・表示情報デコーダ回路、１３・・・表示回
路。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram thereof, and FIG. 4. 5. Figure 6 is a waveform diagram of each part. DESCRIPTION OF SYMBOLS 1... Oscillation circuit, 2... Timing pulse generation circuit, 3... CPU (Central Processing Unit), 4... Photoelectric conversion circuit, 5... Comparator, 6... Laf, orus Circuit, 7...Digital-to-analog conversion circuit (D/
A conversion circuit), 8... Bit binary up counter, 9... Bv register, 10... Digital hysteresis comparator circuit, 11... Display information register, 12... Display information decoder circuit, 13...・Display circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] カメラのファインダ内にＬＥＤなどの発光素子を用いた
情報表示羊膜と、ファインダスクリーンの輝度変化にと
もなって表示素子の明るさを段階的に変化させる表示手
段を有するカメラにおいて、ファインダスクリーンの微
小な輝度変化にともなって表示素子の明るさが激しく変
化しないように、ファインダ内輝度（ファインダスクリ
ーンの輝度）に対して表示素子の明るさの変化点にヒス
テリシスを持たせたことを特徴とするカメラのファイン
タ内表示装置。In a camera that has an information display amniotic membrane using a light emitting element such as an LED in the camera finder, and a display means that changes the brightness of the display element in stages as the brightness of the finder screen changes, the minute brightness of the finder screen A camera finder is characterized in that the brightness of the display element has hysteresis at the change point of the brightness of the display element relative to the brightness inside the viewfinder (brightness of the finder screen) so that the brightness of the display element does not change drastically due to changes in brightness of the display element. Internal display device.
JP2380482U 1982-02-22 1982-02-22 Camera viewfinder display device Granted JPS58126440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2380482U JPS58126440U (en) 1982-02-22 1982-02-22 Camera viewfinder display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2380482U JPS58126440U (en) 1982-02-22 1982-02-22 Camera viewfinder display device

Publications (2)

Publication Number Publication Date
JPS58126440U true JPS58126440U (en) 1983-08-27
JPH0452737Y2 JPH0452737Y2 (en) 1992-12-11

Family

ID=30035820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2380482U Granted JPS58126440U (en) 1982-02-22 1982-02-22 Camera viewfinder display device

Country Status (1)

Country Link
JP (1) JPS58126440U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258529A (en) * 1975-11-08 1977-05-14 Canon Inc Camera system
JPS52102719A (en) * 1976-02-25 1977-08-29 Hitachi Ltd Indicator control circuit
JPS55111925A (en) * 1979-02-20 1980-08-29 Ricoh Co Ltd Focusing point signal generator
JPS56147299A (en) * 1980-04-17 1981-11-16 Mitsubishi Electric Corp Data forming system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258529A (en) * 1975-11-08 1977-05-14 Canon Inc Camera system
JPS52102719A (en) * 1976-02-25 1977-08-29 Hitachi Ltd Indicator control circuit
JPS55111925A (en) * 1979-02-20 1980-08-29 Ricoh Co Ltd Focusing point signal generator
JPS56147299A (en) * 1980-04-17 1981-11-16 Mitsubishi Electric Corp Data forming system

Also Published As

Publication number Publication date
JPH0452737Y2 (en) 1992-12-11

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