Patent ID: 11874466
Assignee: MATRIXED REALITY TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical system for an augmented reality apparatus, comprising:
an image source;
a beam splitter, the beam splitter having a beam splitting side adjacent to the image source and a transmission side facing away from the image source; and
a semi-reflector, the semi-reflector being arranged adjacent to the beam splitting side and being downstream of the beam splitting side in an optical path along which light emitted from the image source is reflected by the beam splitting side, the beam splitter being arranged such that the light emitted from the image source is able to be at least partially reflected by the beam splitting side towards the semi-reflector,
wherein the semi-reflector comprises a substrate and a semi-reflective film on a distal surface of the substrate,
wherein the image source comprises a planar light emitter for emitting light, wherein the plane where the beam splitting side of the beam splitter locates is at a first angle (β) relative to the normal of the image source, which first angle has a value of between 11° and 79°; and/or wherein the plane where the beam splitting side of the beam splitter locates is at a second angle (a) relative to an optical axis of the semi-reflector, wherein 0<the second angle (a)<90° and the second angle is between the first angle (β)−10° and the first angle (β)+10°.