JPS5345270A - Liquid crystal timepiece capable of giving time indication observable also in the night - Google Patents

Liquid crystal timepiece capable of giving time indication observable also in the night

Info

Publication number
JPS5345270A
JPS5345270A JP11934476A JP11934476A JPS5345270A JP S5345270 A JPS5345270 A JP S5345270A JP 11934476 A JP11934476 A JP 11934476A JP 11934476 A JP11934476 A JP 11934476A JP S5345270 A JPS5345270 A JP S5345270A
Authority
JP
Japan
Prior art keywords
night
liquid crystal
time indication
giving time
timepiece capable
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
JP11934476A
Other languages
Japanese (ja)
Inventor
Katsumi Takami
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11934476A priority Critical patent/JPS5345270A/en
Publication of JPS5345270A publication Critical patent/JPS5345270A/en
Pending 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

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Liquid Crystal (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To provide a liquid crystal timepiece, in which the section for indicating hours and minutes or only the section of numeral patterns for indicating hours and minutes is made of luminous fluorescent material containing radioactive substances, whereby the section of hours and minutes can be made visible also in the night, if content of the radiation source in the fluorescent material is so small, for instance, lower than 100muCi prescribed by the law.
JP11934476A 1976-10-06 1976-10-06 Liquid crystal timepiece capable of giving time indication observable also in the night Pending JPS5345270A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11934476A JPS5345270A (en) 1976-10-06 1976-10-06 Liquid crystal timepiece capable of giving time indication observable also in the night

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11934476A JPS5345270A (en) 1976-10-06 1976-10-06 Liquid crystal timepiece capable of giving time indication observable also in the night

Publications (1)

Publication Number Publication Date
JPS5345270A true JPS5345270A (en) 1978-04-22

Family

ID=14759152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11934476A Pending JPS5345270A (en) 1976-10-06 1976-10-06 Liquid crystal timepiece capable of giving time indication observable also in the night

Country Status (1)

Country Link
JP (1) JPS5345270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54170169U (en) * 1978-05-19 1979-12-01

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099773A (en) * 1973-12-29 1975-08-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099773A (en) * 1973-12-29 1975-08-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54170169U (en) * 1978-05-19 1979-12-01

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