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Optical lens and head-mounted device

A head-mounted device and optical lens technology, which is applied in optics, optical components, instruments, etc., can solve problems such as difficulty in meeting large field of view, affecting user wearing experience, and heavy weight of optical lens, so as to improve wearing experience and reduce The effect of weight and improving the divergence ability

Inactive Publication Date: 2022-05-24
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order for the VR glasses to have a sufficient field of view, it is necessary to use more lenses, which leads to the overall weight of the optical lens and affects the user's wearing experience. If the number of lenses of the optical lens is reduced, it will not only be difficult to meet the large field of view Angle requirements, but also easily lead to poor imaging problems

Method used

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  • Optical lens and head-mounted device
  • Optical lens and head-mounted device
  • Optical lens and head-mounted device

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Embodiment Construction

[0023] In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientation or positional relationship indicated by "vertical", "horizontal", "horizontal", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are primarily used to better describe the invention and its embodiments, and are not intended to limit the fact that the indicated device, element or component must have a particular orientation, or be constructed and operated in a particular orientation.

[0024] In addition, some of the above terms may be used to express other meanings besides orientation or positional relationship, for example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to speci...

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Abstract

The invention discloses an optical lens and a head-mounted device, the optical lens at least comprises a first lens and a second lens which are sequentially arranged at an interval along the optical axis direction, the surface of the first lens facing the light emitting side is a first surface, the surface of the second lens facing the light incident side is a second surface, and the first surface and the second surface are provided with film layers. The refractive index of the film layer is gradually reduced in the direction away from the optical axis from the optical axis, and the film layer is used for enabling light to be alternately transmitted and reflected multiple times between the first surface and the second surface. On one hand, the field angle of the optical lens can be increased, so that the optical lens can be provided with a small number of lenses, the weight of the optical lens can be greatly reduced, and the wearing experience of a user can be improved. And on the other hand, the light intensity difference between the edge view field light and paraxial light can be relieved through the film layer with the gradually-changed refractive index, so that the imaging uniformity is improved.

Description

technical field [0001] The present invention relates to the technical field of optical imaging, and in particular, to an optical lens and a head-mounted device. Background technique [0002] With the development of technology, head-mounted devices such as VR glasses (Virtual Reality, virtual reality), AR glasses (Augmented Reality, augmented reality), MR glasses (Mixed Reality, mixed reality) are more and more used in different scenes to achieve different immersive experiences for users. Taking VR glasses as an example, VR glasses mainly focus the light of the display screen in front of people's eyes through optical lenses and form an enlarged virtual image. In order to make the VR glasses have a sufficient field of view, it is necessary to use more lenses, which results in the overall weight of the optical lens being heavier and affects the user's wearing experience. If the number of lenses of the optical lens is reduced, it is not only difficult to meet the large field of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0123G02B2027/0178
Inventor 关赛新
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH