CA2012814A1 - Acoustic resonance operation for xenon-metal halide lamps - Google Patents

Acoustic resonance operation for xenon-metal halide lamps

Info

Publication number
CA2012814A1
CA2012814A1 CA 2012814 CA2012814A CA2012814A1 CA 2012814 A1 CA2012814 A1 CA 2012814A1 CA 2012814 CA2012814 CA 2012814 CA 2012814 A CA2012814 A CA 2012814A CA 2012814 A1 CA2012814 A1 CA 2012814A1
Authority
CA
Canada
Prior art keywords
xenon
lamp
lamps
metal halide
circuit
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
CA 2012814
Other languages
French (fr)
Other versions
CA2012814C (en
Inventor
Gary Robert Allen
Joseph Michael Allison
John Martin Davenport
Richard Lowell Hansler
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to CA 2012814 priority Critical patent/CA2012814C/en
Publication of CA2012814A1 publication Critical patent/CA2012814A1/en
Application granted granted Critical
Publication of CA2012814C publication Critical patent/CA2012814C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • Y02B20/208—

Abstract

A circuit arrangement and a method of operating a highly desirable discharge lamp for automotive applications are disclosed. The discharge lamp contains a high xenon pressure along with a fill of mercury and a halide typically used for metal halide lamps. The high xenon pressure allows the xenon-metal halide lamp to obtain instantaneous light at a high intensity level which is particularly suited for automotive applications. The circuit related to the present invention provides for acoustic operation of the lamp which substantially eliminates known disadvantages of the high pressure xenon lamp of (1) severe arc bowing of such lamps having electrode spacing greater than two (2) millimeters; (2) increased hot-spot temperatures of such lamps; (3) decreased cold-spot temperatures of said lamps and (4) reduced lamp efficiency and life respectively due to decreased cold spots and increased hot-spot temperatures. The circuit in a preferred embodiment incorporates frequency modulation to broaden the desired operational frequency band of the circuit along with straightening the arc between electrodes of the high-pressure xenon-metal halide lamp.
CA 2012814 1990-03-22 1990-03-22 Acoustic resonance operation for xenon-metal halide lamps Expired - Lifetime CA2012814C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2012814 CA2012814C (en) 1990-03-22 1990-03-22 Acoustic resonance operation for xenon-metal halide lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2012814 CA2012814C (en) 1990-03-22 1990-03-22 Acoustic resonance operation for xenon-metal halide lamps

Publications (2)

Publication Number Publication Date
CA2012814A1 true CA2012814A1 (en) 1991-09-22
CA2012814C CA2012814C (en) 2000-05-23

Family

ID=4144572

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2012814 Expired - Lifetime CA2012814C (en) 1990-03-22 1990-03-22 Acoustic resonance operation for xenon-metal halide lamps

Country Status (1)

Country Link
CA (1) CA2012814C (en)

Also Published As

Publication number Publication date
CA2012814C (en) 2000-05-23

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