Sealed projection device

Abstract

Provided is a sealed projection device. The sealed projection device includes a housing, a light source assembly, a first reflector, a spatial light modulator, and a lens assembly, wherein the light source assembly, the first reflector, the spatial light modulator, and the lens assembly are all disposed inside the housing, and the first reflector, the spatial light modulator, and the lens assembly are sequentially disposed on a propagation path of a light beam emitted by the light source assembly; and the first reflector includes a substrate and a reflective film that are stacked, with thermal conductivity of the substrate being greater than thermal conductivity of glass.

Dependencies are inferred from the claim text.