Optical system and wearable equipment

Abstract

The invention discloses an optical system and wearable equipment. The optical system comprises a light source, a compensating mirror group, a waveguide and a reflecting unit, wherein the compensatingmirror group is arranged on the light transmission path of the light source, the incident plane of the compensating mirror group is opposite to the emergent plane of the light source, and the compensating mirror group performs first light path adjustment on the light emitted by the light source; the waveguide is provided with a target incident plane, a first light guide part and a target emergentplane, the target incident plane is opposite to the emergent plane of the compensating mirror group, and the first light guide part is located between the target incident plane and the target emergentplane; and the reflecting surface of the reflecting unit is opposite to the target emergent surface, and the reflecting unit performs second light path adjustment on the light subjected to the firstlight path adjustment so as to reflect parallel light. The optical system can effectively ensure the integrity of light transmission, reduce the light loss, ensure the imaging quality and improve theviewing experience effect of human eyes by adjusting the light path twice.

Description

technical field [0001] The present application belongs to the optical technology field of augmented reality glasses, and in particular relates to an optical system and a wearable device having the optical system. Background technique [0002] In the related art, light will be dispersed after being transmitted through the waveguide. In the field of AR, light is introduced from one end of the waveguide through a collimating lens and exported from the other end of the waveguide. Due to the dispersion of the light transmission process, it is difficult for the human eye to see the complete light from the part of the light exported from the waveguide, resulting in the absence of virtual images. . At present, there is a solution to this problem by increasing the aperture of the collimating lens, but the increase in the aperture of the collimating lens will affect the overall size and shape design of the product. [0003] In addition, if a corner reflector is used to adjust the li...

AI Technical Summary

Problems solved by technology

[0004] This application aims to provide an optical system and a wearable device, at least to solve one of the problems that it is difficult for the human eye to see the complete virtual image derived from the waveguide and the image quality is difficult to control

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