Optical display system

Abstract

The invention provides an optical display system, belonging to the technical fields of optical imaging and display. The optical display system comprises a display system, a first optics lens, a secondoptics lens and a third optics lens; the light emitted by the display system is incident light, the first optical lens is arranged on the optical path of the incident light, and the light transmittedfrom the first optical lens is first transmitted light; the second optical lens is arranged on the optical path of the first transmitted light, and first reflected light is generated after the firsttransmitted light is treated by the second optical lens; the third optical lens is arranged on the optical path of the first reflected light, the first reflected light is partially reflected after being treated by the third optical lens so as to form second reflected light, and the rest part is absorbed by the third optical lens; the second reflected light is incident into the second optical lens,and the second reflected light is transmitted out after being treated by the second optical lens so as to form second transmitted light. The optical display system has the advantages of being simplein structure, lighter in weight, good in imaging quality and free from light leakage phenomenon, and avoids leakage of information.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and in particular relates to an optical display system. Background technique [0002] One of the core technologies in the field of Augmented Reality (AR, Augmented Reality) is a penetrating optical display system, which can superimpose computer-generated images on the user's real vision, and seamlessly blend virtual images and real images. The combination of the digital world and the real world will bring users a new experience. At present, AR technology has been widely used in games, retail, education, industry, medical and other fields. [0003] At present, there are holographic gratings, reflective waveguides, ordinary reflective prisms and free-form surface prisms for transmissive optical displays. The holographic grating solution is light and thin, with high transmittance, but the process is very complicated, expensive, and the viewing angle is limited; the reflective waveguide req...

AI Technical Summary

Problems solved by technology

The holographic grating solution is light and thin, with high transmittance, but the process is very complicated, expensive, and the viewing angle is limited; the reflective waveguide requires a responsible coating process and assembly process, which is difficult for mass production and difficult to guarantee imaging consistency; ordinary reflective prisms, the process is simple, but The angle of view is very small; the angle of view of the free-form prism is large, but the process is complicated, mass production is difficult, and the consistency is difficult to guarantee; in addition, some penetrating optical display solutions have the problem that the displayed image is visible to the outside world, causing the information browsed by the user to be perceived by the outside world , the confidentiality is poor, and there will be information leakage

Moreover, the existing optical display system also has problems such as large volume and heavy weight.

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