Magnetic-resonance compatible large-view-angle virtual reality optical system

A virtual reality and optical system technology, applied in optics, optical components, medical science, etc., can solve problems such as inability to achieve visual effects, and achieve the effect of large viewing angles

Inactive Publication Date: 2019-05-28
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] None of the above devices can achieve the visual effect of virtual reality under magnetic resonance conditions

Method used

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  • Magnetic-resonance compatible large-view-angle virtual reality optical system
  • Magnetic-resonance compatible large-view-angle virtual reality optical system

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 2 As shown, the magnetic resonance compatible large-view virtual reality optical system disclosed in the invention includes an image transmission fiber 1 and an optical path system. , the optical path system includes a magnifying lens 9 and a mirror 7, the magnifying lens 9 is located between the image transmission fiber 1 and the reflection mirror 7, the magnification lens 9 is located in front of the light exit end of the image transmission fiber 1 and is facing the light exit end of the image transmission fiber 1, The reflective surface of reflective mirror 7 is towards the light-emitting surface of magnifying lens 9, and the included angle of reflective mirror and magnifying lens is 45 °, and curtain 8 is towards the reflective surface o...

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Abstract

The invention discloses a magnetic-resonance compatible large-view-angle virtual reality optical system. The system comprises an image transmission optical fiber and an optical path system. The optical path system is located in front of a light outlet end of the image transmission optical fiber, and a curtain for imaging is arranged in the optical path system. According to the system, through thehigh-definition imaging curtain, a real image of large-view-angle optical imaging can be scattered in multiple directions, an examinee can see a large-angle scene under the complex electromagnetic environment in a magnetic-resonance cavity, the large view angle is achieved, and the system has the function of providing VR visual stimulation of division vision and three-dimensional vision of the left and right eyes.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a magnetic resonance compatible large viewing angle virtual reality optical system. Background technique [0002] The existing reflective magnetic resonance compatible visual stimulator has a small field of view, no isolation from the environment, and cannot provide left and right eye separation and stereo vision. [0003] Existing direct-view MRI-compatible visual stimulators such as figure 1 As shown, it includes the image transmission fiber 1, the reflective prism 2, the second image transmission fiber 3, and the VR eyepiece 4, and the end surface image 11 of the image transmission fiber 1 passes through the reflection prism 2, the second image transmission fiber 3, and the VR eyepiece 4 in sequence and arrives Human eyes 5; Visible, direct-looking magnetic resonance compatible visual stimulator has a small viewing angle, a small field of view, a closer eye point, and a small...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01A61B5/055
Inventor 龚启勇幸浩洋张朋黄晓琦吕粟吴杞柱
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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