VS - Lighting Systems - Lighting - 998542

11. Gas-discharge lamps

Mercury containing lamps must be collected for recycling

11.3. Xenon lamp types and numbering

S -Types

Since the very first applications for automotive in the 90’s, Xenon lamps have been shared between elliptical projection-type headlamps and reflection- type headlamp, both types do not use the same lamps because of the cut-off pattern. Depending on their generation, Xenon lamps may integer as well the so-called ignitor (a high voltage pulse-transformer). As the ignitor is part of this module it is changed systematically in case of lamp failure. Complementary to this diversity, an Hg-free range has been introduced to comply with new regulations. D4, D6 lamps and D3, D5, D8 modules are mercury-free devices (Hg). Mercury-free types are not interchangeable with mercury containing types. Lamps connective systems are regulated by coding types that avoid mistake as interchangeability is not possible.

D1S, D2S, D3S, and D4S have a plain UV-shield-glass and are primarily used in projector-type optics.

S-type

To generate the cu in the light distribution, is applied directly on t of the lam R-type

The cut-off is created by a shield. In S-Type-lamp applications the light cut-off is created by a mechani al shield in t e optical system.

Current-production of Xenon lamps are D1S, D1R, D2S, D2R, D3S, D3R, D4S, D4R, D5S, D6S, D8S.

Lamp generation

D 1..2 S/R

Discharge lamp

UV-shield glass

l The D stands for discharge lamp. l The number is the lamp generation. l The final letter describes the outer UV-shield glass.

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