具有直线配置光学结构的紧凑型增强现实用光学装置及光学机构的制造方法

By employing a linearly configured optical structure in the augmented reality optical device and utilizing an internal reflection mechanism to transmit augmented reality image light, the problems of large size, heavy weight, and ghosting phenomenon in the device have been solved, achieving lightweight and clear virtual image display and simplified manufacturing.

CN115997153BActive Publication Date: 2026-07-17LETINAR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LETINAR CO LTD
Filing Date
2021-07-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing augmented reality optical devices have complex structures, resulting in large size and heavy weight, making them inconvenient for users to wear. They are also complex to manufacture, and the virtual image focal length adjustment requires additional operation, resulting in severe ghosting and affecting the field of view and light efficiency.

Method used

The optical structure employs a linear configuration, including a first reflection mechanism and a second reflection mechanism embedded within the optical mechanism. It transmits augmented reality image light to the pupil through multiple reflective elements, reducing ghosting and simplifying the manufacturing process.

Benefits of technology

Significantly reduces device size, thickness, and weight; expands the field of view; improves light efficiency; simplifies manufacturing processes; and provides clear virtual images and wide perspective.

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Abstract

本发明提供一种紧凑型增强现实用光学装置及用于其的光学机构的制造方法,所述紧凑型增强现实用光学装置包括:光学机构,其使实际事物图像光的至少一部分朝向用户的眼睛的瞳孔透过;第一反射机构,其将从图像出射部射出的增强现实图像光传递至第二反射机构;以及第二反射机构,其包括朝向瞳孔传递从所述第一反射机构传递的增强现实图像光的多个反射部,所述第二反射机构包括埋设配置于所述光学机构的内部的多个反射部,当将所述光学机构置于用户的瞳孔的正面,并设瞳孔的正面方向为x轴时,当设从图像出射部朝向x轴的垂直线中沿x轴平行并且经过光学机构的第一面与第二面之间的线段中的某一个为y轴,并设与所述x轴和y轴正交的线段为z轴时,所述多个反射部中的至少2个反射部以当从外部朝向垂直于所述z轴的面观察所述光学机构时中心位于第一直线上的方式形成配置于所述光学机构的内部的第一反射部组,并且所述多个反射部中除了形成所述第一反射部组的反射部外的其余反射部中的至少2个反射部以当从外部朝向垂直于所述z轴的面观察所述光学机构时中心位于不与所述第一直线平行的第二直线上的方式形成配置于所述光学机构的内部的第二反射部组。
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