Wearable display device and projection device

Abstract

A wearable display device includes an optical waveguide element and a projection device. The projection device includes an optical engine main body, at least one light emitting unit, an optical combiner, and a projection lens. The optical engine main body has at least one positioning structure. The light emitting unit is connected to the optical engine main body and configured to emit an illumination beam. The optical combiner is disposed in the optical engine main body and positioned at the positioning structure, the optical combiner is located on a transmission path of the illumination beam, and the optical combiner is configured to guide the illumination beam to form an image beam. The projection lens is connected to the optical engine main body, and the projection lens is located on a transmission path of the image beam and configured to project the image beam to the optical waveguide element.

Dependencies are inferred from the claim text.