Patent ID: 11863914
Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G  B | IPC H

Claim 0:
1. A projection apparatus comprising:
a light source for emitting light with an initial spectral distribution,
an optical element, and
a projection surface,
wherein
the optical element is arranged in a beam path of the light emitted from the light source between the light source and the projection surface,
the optical element comprises a number of pixels,
the pixels of the optical element are each configured to convert light with the initial spectral distribution into light with a predetermined final spectral distribution different from the initial spectral distribution,
each pixel comprises a transmission element or a reflective element that forms a resonator with a resonance condition that can be changed by applying an electric voltage, and
the optical element comprises no mechanically movable parts.