Ocular lens optical system of head-mounted display device

Abstract

The present invention discloses an ocular lens optical system of a head-mounted display device. The ocular lens optical system of the head-mounted display device is suitable for a screen with the size of 4.5-5.5inches and a display screen with the resolution of 2k or 4k. The ocular lens system has high image analysis capacity to fully develop the high resolution and the DPI advantage of the 4K screen, the field angle reaches up to 64 degrees, the silent frame is clear and is almost distortionless, the ray tracing journey is smaller than 75mm, so that the volume and the weight of the whole glasses are greatly reduced. The ocular lens optical system of the head-mounted display device comprises a piece of biconvex aspheric surface positive lens, a piece of biconcave aspheric surface negative lens, a lens barrel and a display screen; the materials of the positive lens are optical grade PMMA, the materials of the negative lens are the optical-grade PC, the positive lens and the negative lens are separately arranged, and the negative lens is close to the display screen.

Description

technical field [0001] The invention relates to the technical field of optical design, in particular to an eyepiece optical system of a head-mounted display device. Background technique [0002] In recent years, as VR and AR head-mounted display devices have returned to the capital and consumer markets, the related hardware and software development technologies have also become increasingly mature. As the structure of the hardware end, the optical eyepiece system can most intuitively reflect the performance of the device, and its technological advancement directly determines the consumer experience. At present, Oculus, HTC, and Samsung have successively launched a variety of VR glasses with large field of view in the world, followed by domestic 3Glass, Baofeng, Lexiang, and Antvision. But all the VR glasses mentioned above basically use the same optical eyepiece solution, that is, a single aspherical or a single Fresnel lens. Whether it is a single-piece aspheric surface o...

AI Technical Summary

Problems solved by technology

Although VR equipment manufacturers generally rectify the above problems by optimizing the bottom layer of hardware and combining various algorithms, the correction solution not only increases the design complexity of the bottom layer of hardware, but also has limited improvement in optical effects

[0003] Oculus has optimized the optical eyepieces in the CV1 version of the glasses launched this year. The aspherical and Fresnel plane coupling eyepieces have largely solved the problems of dispersion and serious distortion, but the peripheral field of view is blurred and the image The problem of being too close to the human eye is still not perfectly solved

In addition, Baofeng launched a pair of glasses that focus on viewing experience, but its field of view is small, the resolution is low, and the ray tracing distance of the eyepiece system is too long, all of which cannot make it achieve the ultimate high-definition viewing effect.

Images