Patent ID: 11874488
Assignee: JIAXING UPHOTON OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 17:
18. The diffractive optical waveguide of claim 16, wherein, the coupling-out grating further comprises a fourth grating and a fifth grating, arranged side by side with the first grating and the second grating in the second direction and respectively located outside the first grating and the second grating; and
the fourth grating is a one-dimensional grating and has a fourth grating vector, the fifth grating is a one-dimensional grating and has a fifth grating vector, the fourth grating vector and the fifth grating vector are respectively the same as the second grating vector and the third grating vector, the fourth grating vector faces a direction away from the fifth grating, and the fifth grating vector faces a direction away from the fourth grating.