JPH01264276A - Led lamp - Google Patents

Led lamp

Info

Publication number
JPH01264276A
JPH01264276A JP2921389A JP2921389A JPH01264276A JP H01264276 A JPH01264276 A JP H01264276A JP 2921389 A JP2921389 A JP 2921389A JP 2921389 A JP2921389 A JP 2921389A JP H01264276 A JPH01264276 A JP H01264276A
Authority
JP
Japan
Prior art keywords
diode
diodes
connected
end
led
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
JP2921389A
Inventor
Yoshimi Otsuka
Original Assignee
Fuji Electric 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP2921389A priority Critical patent/JPH01264276A/en
Publication of JPH01264276A publication Critical patent/JPH01264276A/en
Application status is Pending legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B33/00Electroluminescent light sources
    • H05B33/02Details
    • H05B33/08Circuit arrangements not adapted to a particular application
    • H05B33/0803Circuit arrangements not adapted to a particular application for light emitting diodes [LEDs] comprising only inorganic semiconductor materials
    • H05B33/0806Structural details of the circuit
    • H05B33/0809Structural details of the circuit in the conversion stage
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B33/00Electroluminescent light sources
    • H05B33/02Details
    • H05B33/08Circuit arrangements not adapted to a particular application
    • H05B33/0803Circuit arrangements not adapted to a particular application for light emitting diodes [LEDs] comprising only inorganic semiconductor materials

Abstract

PURPOSE: To obtain an LED lamp which is miniaturized and holds a high rating voltage and then, has brightness in such a way that there is less change in brightness, by equipping the lamp with a voltage regulation diode which bears the part of a voltage impressed to LED diodes and with a current regulation element which maintains the current of the LED diode constant.
CONSTITUTION: Having opposite polar properties to each other, two diodes; a voltage regulation diode 15 which bears the parts of a voltage impressed to LED diodes 1a∼1n and a current regulation diode 16 which maintains the current of the LED diodes 1a∼1n constant are connected in series and it is so contrived as to have bidirectional properties. One end of a lead wire 7b is connected to one end of the diode 16 and the other end of the lead wire is connected to one end of the diode 15 and further, the other end of the diode 15 is connected to a tube rivet 13 with solder 14. Gaps among the diodes 15 and 16, a stem 8, and a holder 9 are stiffened after filling them with silicon resin 17, and they are insulated as well. As this LED lamp is connected so that either of the diodes 15 and 16 can be operated bidirectionarily, it is used by thrusting it into a bulb socket of an a.c. circuit.
COPYRIGHT: (C)1989,JPO&Japio
JP2921389A 1989-02-08 1989-02-08 Led lamp Pending JPH01264276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2921389A JPH01264276A (en) 1989-02-08 1989-02-08 Led lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2921389A JPH01264276A (en) 1989-02-08 1989-02-08 Led lamp

Publications (1)

Publication Number Publication Date
JPH01264276A true JPH01264276A (en) 1989-10-20

Family

ID=12269916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2921389A Pending JPH01264276A (en) 1989-02-08 1989-02-08 Led lamp

Country Status (1)

Country Link
JP (1) JPH01264276A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021917A1 (en) * 1996-11-12 1998-05-22 L.F.D. Limited Lamp
GB2334376A (en) * 1996-11-12 1999-08-18 L F D Limited LED lamp assembly
WO2000051403A1 (en) * 1999-02-09 2000-08-31 Heller Karl Heinz Led low energy lamp system mounted on a common screw cap and plug-in cap
WO2007058215A1 (en) * 2005-11-16 2007-05-24 Rohm Co., Ltd. Light emitting device
WO2011138257A1 (en) * 2010-05-03 2011-11-10 Osram Gesellschaft mit beschränkter Haftung Electronics housing for a lamp, semiconductor lamp and method for casting an electronics housing for a lamp

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021917A1 (en) * 1996-11-12 1998-05-22 L.F.D. Limited Lamp
GB2334376A (en) * 1996-11-12 1999-08-18 L F D Limited LED lamp assembly
GB2335308A (en) * 1996-11-12 1999-09-15 L F D Limited Lamp
GB2334376B (en) * 1996-11-12 1999-10-27 L F D Limited Lamp
GB2335308B (en) * 1996-11-12 1999-10-27 L F D Limited Lamp
US6268702B1 (en) 1996-11-12 2001-07-31 L.F.D. Limited Lamp for an external warning light
WO2000051403A1 (en) * 1999-02-09 2000-08-31 Heller Karl Heinz Led low energy lamp system mounted on a common screw cap and plug-in cap
WO2007058215A1 (en) * 2005-11-16 2007-05-24 Rohm Co., Ltd. Light emitting device
JP2007142055A (en) * 2005-11-16 2007-06-07 Rohm Co Ltd Light-emitting device
US7902770B2 (en) 2005-11-16 2011-03-08 Rohm Co., Ltd. Light emitting device
WO2011138257A1 (en) * 2010-05-03 2011-11-10 Osram Gesellschaft mit beschränkter Haftung Electronics housing for a lamp, semiconductor lamp and method for casting an electronics housing for a lamp

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