JPS592006B2 - 輝度自動調整型フアインダ−内表示装置 - Google Patents

輝度自動調整型フアインダ−内表示装置

Info

Publication number
JPS592006B2
JPS592006B2 JP47104924A JP10492472A JPS592006B2 JP S592006 B2 JPS592006 B2 JP S592006B2 JP 47104924 A JP47104924 A JP 47104924A JP 10492472 A JP10492472 A JP 10492472A JP S592006 B2 JPS592006 B2 JP S592006B2
Authority
JP
Japan
Prior art keywords
brightness
power supply
led
circuit
transistor
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.)
Expired
Application number
JP47104924A
Other languages
English (en)
Japanese (ja)
Other versions
JPS4964426A (enrdf_load_stackoverflow
Inventor
昭夫 山西
真潮 北浦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP47104924A priority Critical patent/JPS592006B2/ja
Publication of JPS4964426A publication Critical patent/JPS4964426A/ja
Priority to US05/581,305 priority patent/US4006485A/en
Publication of JPS592006B2 publication Critical patent/JPS592006B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Indication In Cameras, And Counting Of Exposures (AREA)
JP47104924A 1972-10-19 1972-10-19 輝度自動調整型フアインダ−内表示装置 Expired JPS592006B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP47104924A JPS592006B2 (ja) 1972-10-19 1972-10-19 輝度自動調整型フアインダ−内表示装置
US05/581,305 US4006485A (en) 1972-10-19 1975-05-27 Luminance controlled indicator in camera view finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47104924A JPS592006B2 (ja) 1972-10-19 1972-10-19 輝度自動調整型フアインダ−内表示装置

Publications (2)

Publication Number Publication Date
JPS4964426A JPS4964426A (enrdf_load_stackoverflow) 1974-06-21
JPS592006B2 true JPS592006B2 (ja) 1984-01-17

Family

ID=14393636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47104924A Expired JPS592006B2 (ja) 1972-10-19 1972-10-19 輝度自動調整型フアインダ−内表示装置

Country Status (1)

Country Link
JP (1) JPS592006B2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62145208U (enrdf_load_stackoverflow) * 1986-03-07 1987-09-12

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990123A (enrdf_load_stackoverflow) * 1972-12-26 1974-08-28
JPS5137228A (en) * 1974-09-25 1976-03-29 Canon Kk Johohyojibuzainoshomeihoshiki
JPS5494030A (en) * 1978-03-25 1979-07-25 Ricoh Co Ltd Photometric information display device for single lens reflex camra
JPS59141316U (ja) * 1983-03-11 1984-09-21 アジアオプチカル株式会社 標的スコ−プ
JPS6083995A (ja) * 1983-10-14 1985-05-13 キヤノン株式会社 輝度変調回路
JPS6044398U (ja) * 1984-07-12 1985-03-28 キヤノン株式会社 閃光撮影用充電完了表示装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4214356Y1 (enrdf_load_stackoverflow) * 1966-12-13 1967-08-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62145208U (enrdf_load_stackoverflow) * 1986-03-07 1987-09-12

Also Published As

Publication number Publication date
JPS4964426A (enrdf_load_stackoverflow) 1974-06-21

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