Mercury free high-pressure metal halide discharge lamp

Details Mercury free high-pressure metal halide discharge lamp Mercury free high-pressure metal halide discharge lamp

2004-04-02

2008-08-19

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

C313S638000, C313S640000

Reexamination Certificate

active

07414367

ABSTRACT:
A high-pressure metal halide discharge lamp which comprises, as filling, only zinc, a halogen and a noble gas. In order to improve the color rendering index, a calcium halide may be added to the lamp filling. The coupling-in of energy preferably takes place without electrodes in the radio-frequency range or in the microwave range, but may also be carried out by means of metal electrodes.

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ISR, Written Opinion of the International Searching Authoritty PCT/IB2004/050387.

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