Optical system and head-mounted display device provided with optical system

An optical system and light technology, applied in optics, optical components, instruments, etc., can solve the problem of reducing the structural size of the device without a substantial breakthrough, and achieve the effects of facilitating pupil matching, shortening the optical path, and large exit pupil diameter

Inactive Publication Date: 2017-02-22
浙江舜通智能科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

This invention mainly includes a free-form surface lens and a free-form surface prism. Because the device is an off-axis device, the length of

Method used

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  • Optical system and head-mounted display device provided with optical system
  • Optical system and head-mounted display device provided with optical system
  • Optical system and head-mounted display device provided with optical system

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Embodiment Construction

[0051] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure, and to fully convey the scope of the present disclosure to those skilled in the art.

[0052] figure 1 A schematic structural view of an optical system according to an embodiment of the present invention is shown.

[0053] Such as figure 1 As shown, the optical system of the present invention is located between an image generating unit 1 and an image receiver 2, eg a human eye. The optical system includes a lens 3 for forming a predetermined focal length on the image light information generated by the image generati...

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Abstract

The invention discloses an optical system and a head-mounted display device provided with the optical system. The optical system is located between an image generation unit and an image receiver, and comprises a lens, a light splitting assembly, a light modulation assembly and a polarization filter, wherein the lens is used for forming a pre-set focal distance of image optical information of an image generation unit; the light splitting assembly is used for enabling target light in the image optical information of the image generation unit to move back and forth for a plurality of times to pass through the lens and then enter the image receiver, and comprises a first light splitting device arranged between the lens and the image generation unit and a second light splitting device arranged between the lens and the image receiver; the light modulation assembly is used for modulating a polarization state of incident polarized light; and the polarization filter is used for stopping scattered light from entering the image receiver. The head-mounted display device comprises the optical system and the image generation unit. The optical device disclosed by the invention is relatively simple and effective; and a light path can be shortened through utilizing one piece of the lens, and the whole weight of the display device is reduced. The device has a small total length, a small size and a light weight and is convenient for a user to carry and use.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an optical system and a head-mounted display device equipped with the optical system. Background technique [0002] With the progress of the times, Head-Mounted Display (HMD) is gradually entering people's lives, which subverts the visual experience brought by traditional display devices to users, and has a strong sense of immersion and reality. Head-mounted displays have very important applications and commercial values, and are widely used in cultural communication, entertainment games, military training, medical diagnosis, virtual reality and augmented reality. [0003] The head-mounted display should be worn on the user's head, and its weight and volume should be as small as possible. A head-mounted display is a display device, and an optical device is one of its core components. Existing optical devices applied to a head-mounted display can be divided into two type...

Claims

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Application Information

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IPC IPC(8): G02B27/01
CPCG02B27/0172
Inventor 俞世铭
Owner 浙江舜通智能科技有限公司
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