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FR2290818A1 - Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources - Google Patents

Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources

Info

Publication number
FR2290818A1
FR2290818A1 FR7441629A FR7441629A FR2290818A1 FR 2290818 A1 FR2290818 A1 FR 2290818A1 FR 7441629 A FR7441629 A FR 7441629A FR 7441629 A FR7441629 A FR 7441629A FR 2290818 A1 FR2290818 A1 FR 2290818A1
Authority
FR
France
Prior art keywords
transistors
incorporated
complementary type
light sources
appropriate light
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
FR7441629A
Other languages
French (fr)
Other versions
FR2290818B3 (en
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.)
LASSALLE ELIANE
Original Assignee
LASSALLE ELIANE
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 LASSALLE ELIANE filed Critical LASSALLE ELIANE
Priority to FR7441629A priority Critical patent/FR2290818A1/en
Publication of FR2290818A1 publication Critical patent/FR2290818A1/en
Application granted granted Critical
Publication of FR2290818B3 publication Critical patent/FR2290818B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C15/00—Other forms of jewellery
    • A44C15/0015—Illuminated or sound-producing jewellery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0463—Portable signs, boards or panels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Adornments (AREA)

Abstract

The electronic flasher emits periodic pulses via one or more miniature filament lamps or light-emitting diodes, energised via a thyristor control circuit from a miniature battery, the flasher unit being incorporated in a jewellery item, e.g. mounted on a bracelet. The transistor circuit uses at least two transistors (2, 5) of complementary type, a capacitor (4), a resistor (3) and a switch (1). Preferably the lamp (6) is connected between the emitter of one transistor (2) and the collector of the other one (5), with the capacitor (4) connected in parallel with a series circuit comprising the base-collector path of the two transistors and the resstor (3) is connected between the base of the first transistor (2) and the emitter of the second one (5).
FR7441629A 1974-11-07 1974-11-07 Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources Granted FR2290818A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7441629A FR2290818A1 (en) 1974-11-07 1974-11-07 Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7441629A FR2290818A1 (en) 1974-11-07 1974-11-07 Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources

Publications (2)

Publication Number Publication Date
FR2290818A1 true FR2290818A1 (en) 1976-06-04
FR2290818B3 FR2290818B3 (en) 1977-09-16

Family

ID=9146285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441629A Granted FR2290818A1 (en) 1974-11-07 1974-11-07 Miniature electronic flasher eg incorporated in jewellery item - uses two transistors of complementary type energising appropriate light sources

Country Status (1)

Country Link
FR (1) FR2290818A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616633A1 (en) * 1987-06-17 1988-12-23 Heyligers Alfred Jewels: drop ear-rings and pendant emitting non-synchronised cyclic lights of different colours based on optoelectronics
ITBI20100012A1 (en) * 2010-10-12 2011-01-11 Calogero Nicosia "FLASHING BRACELET FOR REMOTE APPROACH"

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616633A1 (en) * 1987-06-17 1988-12-23 Heyligers Alfred Jewels: drop ear-rings and pendant emitting non-synchronised cyclic lights of different colours based on optoelectronics
ITBI20100012A1 (en) * 2010-10-12 2011-01-11 Calogero Nicosia "FLASHING BRACELET FOR REMOTE APPROACH"

Also Published As

Publication number Publication date
FR2290818B3 (en) 1977-09-16

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Legal Events

Date Code Title Description
ST Notification of lapse