Patent ID: 11899203
Assignee: JIAXING UPHOTON OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 6:
7. The design method of claim 5, wherein the obtaining grating duty ratios further comprises:
dividing an eyebox of the coupling-out grating into a plurality of sub-eyeboxes according to a pupil size, and calculating coupling-out optical powers of respective sub-eyeboxes;
calculating a non-uniformity parameter of the coupling-out optical powers within the eyebox of the coupling-out grating according to the coupling-out optical powers of the respective sub-eyeboxes;
obtaining optimized grating duty ratios of the respective partitions by taking the total coupling-out optical power and the non-uniformity parameter of the coupling-out grating as optimization objectives.