Patent ID: 11906154
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. A luminaire comprising:
a housing configured to be installed in a recess in a ceiling, the housing comprising an inner top surface to which a light source is mounted;
a frame attached to the housing, the frame comprising:
a first side rail;
a second side rail;
a third side rail;
a fourth side rail; and
a film stack comprising a plurality of films, the film stack supported by the first side rail, the second side rail, the third side rail, and the fourth side rail, wherein the plurality of films comprises a photopolymer film with optical structures that provide a holographic three-dimensional pattern, a diffuser film, and a textured acrylic film, wherein the diffuser film is stacked on top of the photopolymer film, and the photopolymer film is stacked on top of the textured acrylic film such that the diffuser film is the closest of the plurality of films to the light source.