A kind of augmented reality optical module and augmented reality equipment

Abstract

The embodiment of the invention discloses an augmented reality optical module and augmented reality equipment. The augmented reality optical module is used to superimpose the light emitted by the image source and the ambient light to form an augmented reality image, including a first lens, a second lens and a third lens group, the first lens and the second lens have semi-transparent and semi-transparent properties for visible light The opposite effect; the third lens group side is provided with a first polarization modulation unit, which is used to modulate the light emitted by the image source into the first circularly polarized light; the first surface of the first lens side is provided with an angle selection film, and the angle The selective film reflects light rays whose incident angle is greater than or equal to the first included angle, and transmits light rays whose incident angle is less than or equal to the second included angle; a second polarization modulation unit is provided on the other side of the first lens, and the second polarization modulation unit is used for It is used to modulate the incident circularly polarized light into linearly polarized light. The technical solutions of the embodiments of the present invention can effectively eliminate interference caused by ambient light and improve user experience.

Description

technical field [0001] The embodiments of the present invention relate to augmented reality technology, and in particular to an augmented reality optical module and augmented reality equipment. Background technique [0002] Augmented reality (Augmented Reality, "AR") technology is a technology that uses a projection system to generate virtual images and superimpose real-world information to increase users' perception of the real world. The goal of this technology is to put the virtual world on the screen. the real world and interact with it. AR technology can be widely used in military, medical, construction, education, engineering, film and television, entertainment and many other fields. [0003] Existing augmented reality optical modules generally include two half-transparent and half-reflective lenses and a third lens group. In application, due to the oblique setting of the transflective lens, the incident ambient light below it will also irradiate the transflective le...

AI Technical Summary

Problems solved by technology

[0003] Existing augmented reality optical modules generally include two half-transparent and half-reflective lenses and a third lens group. In application, due to the oblique setting of the semi-transparent and semi-reflective lens, the incident ambient light below it will also irradiate the semi-transparent and semi-reflective lens, and after being reflected, enter the human eye for imaging, causing interference and degrading user experience

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