Display ray machine and method thereof and near-to-eye display equipment

Abstract

The invention discloses a display ray machine and a method thereof and near-to-eye display equipment. The display optical machine comprises a display unit, a relay assembly and a perspective reflection assembly. The display unit is used for emitting image light with a predetermined spectrum. The relay assembly is disposed on the emission path of the display unit. The perspective reflection assembly is arranged on the reflection path of the relay assembly, the reflection spectrum of the perspective reflection assembly is basically consistent with the preset spectrum, and the perspective reflection assembly is used for reflecting the image light reflected by the relay assembly back to the relay assembly so as to reduce the phenomenon that the image light escapes through the perspective reflection assembly.

Description

technical field [0001] The invention relates to the field of augmented reality technology, in particular to a display optical machine, a manufacturing method thereof, and a near-eye display device. Background technique [0002] Augmented Reality (AR for short), also known as augmented reality or mixed reality, is a technology that superimposes virtual objects on the real environment and interacts with them. By projecting images of virtual objects and images of the real environment into the eyes of users, Enable users to obtain the experience of integrating virtual and reality. Currently, there are near-eye display devices capable of implementing augmented reality, such as AR glasses, on the market. [0003] like figure 1 As shown, the existing display optical machine 10P generally includes a display unit 11P, a half mirror 12P, and a curved mirror 13P. The image light emitted by the display unit 11P passes through the half mirror 12P and the curved mirror 13P. reflected i...

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Problems solved by technology

[0005] In addition, in order to ensure that the user can clearly see the real environment, the reflectivity of the curved reflector 13P should not be too high, so as not to have enough light from the real environment to pass through the curved reflector 13P, which results in nearly half of the image light It will be wasted through the curved mirror 13P, which greatly reduces the light utilization efficiency of the image light, resulting in poor image quality.

Especially, when the near-eye display device 1P is used in a dim or dark environment, the escaping image light will cause the near-eye display device 1P to look conspicuous due to the light, which will embarrass the user himself, and even cause disgusted by others

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