JPS52466A - Electronic timekeeping device with illumination device - Google Patents

Electronic timekeeping device with illumination device

Info

Publication number
JPS52466A
JPS52466A JP50077426A JP7742675A JPS52466A JP S52466 A JPS52466 A JP S52466A JP 50077426 A JP50077426 A JP 50077426A JP 7742675 A JP7742675 A JP 7742675A JP S52466 A JPS52466 A JP S52466A
Authority
JP
Japan
Prior art keywords
electronic timekeeping
illumination
needing
lamp
illumination 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
JP50077426A
Other languages
Japanese (ja)
Other versions
JPS5819996B2 (en
Inventor
Shingo Ichikawa
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP50077426A priority Critical patent/JPS5819996B2/en
Publication of JPS52466A publication Critical patent/JPS52466A/en
Publication of JPS5819996B2 publication Critical patent/JPS5819996B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G04G9/0041—Illumination devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To effect change of indication, correction of digit selection, and turn on or off of lamp by means of only two operation members without needing to particularly provide an operation member for controlling the lamp or without needing a safety switch for preventing erroneous operation.
JP50077426A 1975-06-23 1975-06-23 Electronic clock with lighting device Expired JPS5819996B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50077426A JPS5819996B2 (en) 1975-06-23 1975-06-23 Electronic clock with lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50077426A JPS5819996B2 (en) 1975-06-23 1975-06-23 Electronic clock with lighting device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP57069631A Division JPS57184994A (en) 1982-04-27 1982-04-27 Electronic timepiece

Publications (2)

Publication Number Publication Date
JPS52466A true JPS52466A (en) 1977-01-05
JPS5819996B2 JPS5819996B2 (en) 1983-04-21

Family

ID=13633643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50077426A Expired JPS5819996B2 (en) 1975-06-23 1975-06-23 Electronic clock with lighting device

Country Status (1)

Country Link
JP (1) JPS5819996B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988561A (en) * 1972-12-25 1974-08-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988561A (en) * 1972-12-25 1974-08-23

Also Published As

Publication number Publication date
JPS5819996B2 (en) 1983-04-21

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