Patent ID: 11966060
Assignee: JIAXING UPHOTON OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. The optical waveguide device for display of claim 1, wherein the input section further comprises a composite synergistic layer disposed between the first relief grating and the first waveguide substrate, the composite synergistic layer comprises at least two subregions, the at least two subregions comprise a first subregion disposed upstream and a second subregion disposed downstream in the direction of the first grating vector, and the first subregion and the second subregion have the same thickness and have a fifth refractive index n5 and a sixth refractive index n6, respectively, such that diffracted light of the predetermined order is subjected to constructive thin-film interference in the first subregion as it passes through the composite synergistic layer, and reflected light of zero order is subjected to constructive thin-film interference in the second subregion as the diffracted light of the predetermined order is reflected on said surface of the first waveguide substrate.