Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Arnold&richter Cine Technik Gmbh&co. Betriebs Kg

Regine Krämer

Martin Zachau

Erwin Melzner

Michael Jonischkeit

Kerstin Schlegel

Ulrich Müller

Renate Hirrle

Dennis Jackstien

Johann Hochreiter

Jürgen Heider

A spotlight for shooting films and videos is provided. The spotlight comprising light-emitting diodes (LEDs) arranged on a light-emitting surface, of which color LEDs emit different LED colors (R, G, A, B, Ye) and provide luminous flux portions for a color mixture. At least one LED comprises a luminescent LED. The spotlight further comprising a device for setting the luminous flux portion emitted by the LEDs, which device drives the LEDs at least in groups. At least one color LED emits the LED color 'blue' or 'cyan', and the luminescent LED comprises a yellow-green, daylight-white, neutral-white or warm-white luminescent LED, which covers at least a portion of the color LEDs with the exception of the color LED emitting the LED color &#x201c;blue&#x201d; or &#x201c;cyan&#x201d;.

Spotlight for shooting films and videos

The invention proposes a dielectric barrier discharge lamp having a phosphor mixture and improved color rendering. The phosphor mixture comprises at least the phosphor components A: cerium-activated yttrium aluminate (YAlO:Ce) and B: europium-activated barium magnesium aluminate (BaMgAlO:Eu). To further improve the color rendering and to match the emission spectrum to the spectral sensitivity of film, the phosphor mixture optionally also comprises the phosphor component C: cerium- and manganese-activated gadolinium magnesium zinc pentaborate (Gd(Zn,Mg)BO:(Ce, Mn)) and/or the phosphor component D: europium-activated strontium aluminate (SrAlO:Eu).

Dielectric barrier discharge lamp with improved color reproduction

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Munich, Germany

Regine Krämer