WO2026113525 - DIFFRACTIVE OPTICAL WAVEGUIDE
National phase entry is expected:
Publication Number
WO/2026/113525
Publication Date
04.06.2026
International Application No.
PCT/CN2025/115254
International Filing Date
18.08.2025
Title **
[English]
DIFFRACTIVE OPTICAL WAVEGUIDE
[French]
GUIDE D'ONDES OPTIQUE DIFFRACTIF
[Chinese]
一种衍射光波导
Applicants **
SHANGHAI NORTH OCEAN TECHNOLOGIES CO., LTD
Inventors
ZHANG, Yaqin
HUANG, Peng
WANG, Weisen
LOU, Xinye
Priority Data
202510742585.2
05.06.2025
CN
202411703123.1
26.11.2024
CN
202411884959.6
20.12.2024
CN
202510263875.9
06.03.2025
CN
202510178752.5
18.02.2025
CN
Application details
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2213 | |
| EPO | Filing, Examination, Granting | 14486 | |
| Japan | Filing, Examination, Granting | 2374 | |
| South Korea | Filing, Examination, Granting | 2684 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
26,497
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Abstract[English]
The present application discloses a diffractive optical waveguide. The diffractive optical waveguide comprises: a waveguide substrate, a surface of the waveguide substrate being provided with a light ray coupling functional region, and the light ray coupling functional region at least comprising an in-coupling region and an out-coupling region; an auxiliary structure, provided in a region of the surface of the waveguide substrate other than the light ray coupling functional region, the auxiliary structure comprising multiple auxiliary units, and the auxiliary units being used to cancel interference of reflected light formed when ambient light is incident on the auxiliary structure. The technical solution provided in the present application can reduce undesirable surface reflection generated on the surface of a diffractive optical waveguide.[French]
La présente demande concerne un guide d'ondes optique diffractif. Le guide d'ondes optique diffractif comprend : un substrat de guide d'ondes, une surface du substrat de guide d'ondes étant pourvue d'une région fonctionnelle de couplage de rayons lumineux, et la région fonctionnelle de couplage de rayons lumineux comprenant au moins une région de couplage d'entrée et une région de couplage de sortie ; une structure auxiliaire, disposée dans une région de la surface du substrat de guide d'ondes autre que la région fonctionnelle de couplage de rayons lumineux, la structure auxiliaire comprenant plusieurs unités auxiliaires, et les unités auxiliaires étant utilisées pour annuler les interférences de la lumière réfléchie formée lorsque la lumière ambiante est incidente sur la structure auxiliaire. La solution technique fournie dans la présente demande permet de réduire les réflexions de surface indésirables générées sur la surface d'un guide d'ondes optique diffractif.[Chinese]
本申请公开了一种衍射光波导，衍射光波导包括：波导基底，所述波导基底的表面设置有光线耦合功能区域；所述光线耦合功能区域至少包括耦入区域和耦出区域；所述波导基底表面除所述光线耦合功能区域外的其他区域设置有辅助结构，所述辅助结构包括若干辅助单元，所述辅助单元用于使环境光线入射到所述辅助结构时形成的反射光线干涉相消。本申请提供的技术方案能够减少衍射光波导表面产生的不被期望的表面反射。