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ELECTRICAL DISCHARGE LIGHT SOURCES: A CHALLENGE FOR THE FUTURE

Georges Zissis, J. J. Damelincourt

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Abstract

The first electric powered lamp operated more that 150 years ago, since then the evolution of light sources is astonishing. Today, more than 10% of the global electric power produced worldwide serve for light production from several billions lamps. Since last three decades incandescent lamps are gradually replaced by more energy efficient discharge lamps. In parallel, new generations of Light Emitting Diodes, producing bright colours (including white) with luminous efficacy challenging even discharge lamps, appeared in past years. The objective of this paper is to focus on the state of art in the domain of light sources and discuss the challenges for the near future.

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What this paper is about

The first electric powered lamp operated more that 150 years ago, since then the evolution of light sources is astonishing. Today, more than 10% of the global electric power produced worldwide serve for light production from several billions lamps. Since last three decades incandescent lamps are gradually replaced by more energy efficient discharge lamps. In parallel, new generations of Light Emitting Diodes, producing bright colours (including white) with luminous efficacy challenging even discharge lamps, appeared in past years. The objective of this paper is to focus on the state of art in the domain of light sources and discuss the challenges for the near future.

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OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The first electric powered lamp operated more that 150 years ago, since then the evolution of light sources is astonishing. Today, more than 10% of the global electric power produced worldwide serve for light production from several billions lamps. Since last three decades incandescent lamps are gradually replaced by more energy efficient discharge lamps. In parallel, new generations of Light Emitting Diodes, producing bright colours (including white) with luminous efficacy challenging even discharge lamps, appeared in past years. The objective of this paper is to focus on the state of art in the domain of light sources and discuss the challenges for the near future.

Key concepts: Incandescent light bulb, Electric light, White light, Gas-discharge lamp, LED lamp, Light-emitting diode, Light pollution, Luminous efficacy

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