JPS50136075A - - Google Patents

Info

Publication number
JPS50136075A
JPS50136075A JP50025101A JP2510175A JPS50136075A JP S50136075 A JPS50136075 A JP S50136075A JP 50025101 A JP50025101 A JP 50025101A JP 2510175 A JP2510175 A JP 2510175A JP S50136075 A JPS50136075 A JP S50136075A
Authority
JP
Japan
Prior art keywords
clock
emitting diode
light
alarm
kick
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
JP50025101A
Other languages
Japanese (ja)
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
Priority claimed from DE19742410117 external-priority patent/DE2410117B2/en
Priority claimed from DE2414119A external-priority patent/DE2414119A1/en
Priority claimed from DE19742428343 external-priority patent/DE2428343A1/en
Application filed filed Critical
Publication of JPS50136075A publication Critical patent/JPS50136075A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G11/00—Producing optical signals at preselected times
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/30—Illumination of dials or hands
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Audible And Visible Signals (AREA)

Abstract

A description is given of an alarm clock which is battery-powered (normally being fed by a 1.5 V cell), in which for the purpose of illuminating parts of the clock, in particular the clock face, at least one semiconductor light-emitting diode (LD) is used. The inductive rebound/kick-back voltage of the coil (L) of the alarm signal transmitter of the clock is used to feed the light-emitting diode. <IMAGE>
JP50025101A 1974-03-02 1975-03-03 Pending JPS50136075A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19742410117 DE2410117B2 (en) 1974-03-02 1974-03-02 BATTERY OPERATED ALARM CLOCK
DE2414119A DE2414119A1 (en) 1974-03-23 1974-03-23 Battery-operated alarm clock - with alarm source employing coil shunted by light-emitting diode
DE19742428343 DE2428343A1 (en) 1974-06-12 1974-06-12 Battery operated alarm clock - has alarm signal source employing magnetic coil

Publications (1)

Publication Number Publication Date
JPS50136075A true JPS50136075A (en) 1975-10-28

Family

ID=27185802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50025101A Pending JPS50136075A (en) 1974-03-02 1975-03-03

Country Status (4)

Country Link
JP (1) JPS50136075A (en)
CH (1) CH615322GA3 (en)
FR (1) FR2262825B1 (en)
IT (1) IT1033226B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134870U (en) * 1977-03-31 1978-10-25
JPS5421576U (en) * 1977-07-15 1979-02-13
JPS59194093U (en) * 1983-06-09 1984-12-24 株式会社精工舎 timer
JPS61176686U (en) * 1985-04-23 1986-11-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53134870U (en) * 1977-03-31 1978-10-25
JPS5421576U (en) * 1977-07-15 1979-02-13
JPS59194093U (en) * 1983-06-09 1984-12-24 株式会社精工舎 timer
JPS61176686U (en) * 1985-04-23 1986-11-04

Also Published As

Publication number Publication date
FR2262825A1 (en) 1975-09-26
CH615322B (en)
IT1033226B (en) 1979-07-10
CH615322GA3 (en) 1980-01-31
FR2262825B1 (en) 1978-04-21

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