Diffractive optical structure and smart glasses

By adopting spectroscopic waveguides and independent design waveguide lens structures in smart glasses, the limitations of traditional smart glasses are solved, achieving a more face-fitting appearance design and higher wearing comfort and aesthetics.

CN119738910APending Publication Date: 2025-04-01GOERTEK OPTICAL TECHNOLOGY (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202411998554.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

The diffraction optical waveguide architecture of traditional smart glasses limits the design of left and right glasses, making it difficult to fit different head shapes, affecting the aesthetics and wear comfort, and at the same time it is difficult to meet the needs of people with different pupil distances.

Method used

Using a diffraction optical structure including a spectroscopic waveguide, a first waveguide lens and a second waveguide lens, the light emitted by a single optical machine is distributed to the waveguide lens of the left and right eyes through the spectroscopic waveguide, allowing independent design and adjustment of the waveguide lens to adapt to different pupil distances and appearance needs.

Benefits of technology

It realizes a design that fits the face contours more in line with the face, improves the comfort and aesthetics of wearing. At the same time, through flexible optical path design and component layout, it meets the diverse needs of different users.

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Abstract

The embodiment of the present application provides a diffractive optical structure and smart glasses; the diffractive optical structure includes a splitter waveguide, a first waveguide lens and a second waveguide lens; the splitter waveguide includes a first coupling-in area, a first coupling-out area and a second coupling-out area, the first coupling-in area receives light from an optical machine, and the two coupling-out areas are used to guide the light from the first coupling-in area to the first waveguide lens and the second waveguide lens respectively; the first waveguide lens includes a second coupling-in area and a third coupling-out area, the light transmission path of the first light emitted from the first coupling-in area passes through an area where the orthographic projection of the first coupling-out area in a direction perpendicular to the first waveguide lens coincides with the second coupling-in area, and the third coupling-out area couples out the first light; the second waveguide lens includes a third coupling-in area and a fourth coupling-out area, the light transmission path of the second light emitted from the second coupling-in area passes through an area where the orthographic projection of the second coupling-out area in a direction perpendicular to the second waveguide lens coincides with the third coupling-in area, and the fourth coupling-out area couples out the second light.
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