Optical assembly and augmented reality display device

The utility model provides an optical assembly and augmented reality display equipment. The optical assembly comprises a primary reflector configured to allow light to be reflected; the secondary reflectors are arranged at the opposite ends of the primary reflector at intervals, face the primary reflector and are configured to receive light rays reflected by the primary reflector; the incident window is arranged at the center of the secondary reflector and is aligned with the primary reflector, and the incident window is configured to allow light to enter a space formed by the primary reflector and the secondary reflector; the emergent window and the incident window are arranged in parallel, the emergent window surrounds the primary reflector, and the emergent window is configured to allow light to be emitted from a space formed by the primary reflector and the secondary reflector; the incidence window is used for installing the micro display, light of the micro display enters the primary reflector through th