Abstract: An optical waveguide includes a grating structure having an end face and core structures having a first refractive index and sequentially arranged at intervals in a vector direction and each having a connection end coupled to a waveguide substrate, a free end disposed opposite to the connection end in a height direction, and a side surface disposed between the connection end and the free end. A first film structure has a second refractive index unequal to the first refractive index, a film body configured to wrap the side surface, first and second film body ends, a first end part disposed at the first film body end and coupled to the waveguide substrate, and a second end part disposed at the second film body end and that is coplanar with the free end. The free ends of the core structures and second end part jointly define the grating structure end face.

Abstract: An optical apparatus includes an image source, a relay optical system, and an optical processing system. The image source is configured to display an image. The relay optical system is configured to project the image displayed by the image source to the optical processing system, and to image at infinity. The optical processing system is configured to project incident light from the relay optical system in a same direction to at least two preset directions sequentially.

Abstract: An optical apparatus includes an image source, a relay optical system, and an optical processing system. The image source is configured to display an image. The relay optical system is configured to project the image displayed by the image source to the optical processing system, and to image at infinity. The optical processing system is configured to project incident light from the relay optical system in a same direction to at least two preset directions sequentially.

Abstract: An optical apparatus includes an image source, a relay optical system, and an optical processing system. The image source is configured to display an image. The relay optical system is configured to project the image displayed by the image source to the optical processing system, and to image at infinity. The optical processing system is configured to project incident light from the relay optical system in a same direction to at least two preset directions sequentially.

Abstract: An optical apparatus includes an image source, a relay optical system, and an optical processing system. The image source is configured to display an image. The relay optical system is configured to project the image displayed by the image source to the optical processing system, and to image at infinity. The optical processing system is configured to project incident light from the relay optical system in a same direction to at least two preset directions sequentially.