Carl Zeiss Jena Gmbh

Carl Zeiss Spectroscopy Gmbh

Arnaud Deparnay

Matthias Cumme

Michael Rode

Alexandre Gatto

Roman Kleindienst

Michael Helgert

A lighting device is provided, comprising a spatially extended light source with a light-emitting surface greater than 0.5 mmand also an aspherical TIR lens, which is configured to collimate light from the spatially extended light source, and a refractive diffuser configured to generate a lighting distribution on the basis of the collimated light.

Lighting device for a vehicle

For the purpose of gas quality monitoring, a spectroscopic examination of a gas sample from a space () to be monitored is carried out, e.g. by Raman spectroscopy. The spectroscopic examination yields a measurement spectrum extending over a wavelength range. A deviation of the measurement spectrum from at least one comparison sample () is then detected. Depending on the detected deviation, a gas quality warning (QW) is produced.

Sample-based gas quality control by means of raman spectroscopy

Lighting devices for vehicles, e.g., headlamps or tail lamps, are provided. A refractive diffuser () allows the provision of substantially any lighting signature for the lighting device, yielding great freedoms in terms of design.

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Erfurt, Germany

Arnaud Deparnay