Conjugated narrow-band tri-phosphor staggered volume holographic grating waveguide near-to-eye optical display device

A volume holographic grating and three-primary color technology, applied in optical components, optics, instruments, etc., can solve problems such as increasing difficulty, difficulty, color crosstalk, etc., and achieve a simple and easy optical structure, simple and easy to implement processing technology, and manufacturing technology. Simple and easy effects
CN104656259AActive Publication Date: 2015-05-27SHANGHAI RAYPAI PHOTONIC CRYSTAL LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI RAYPAI PHOTONIC CRYSTAL LTD
Publication Date
2015-05-27

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Abstract

The invention provides a conjugated narrow-band tri-phosphor staggered volume holographic grating waveguide near-to-eye optical display device. The device comprises an image display light source which is used for providing image information to be viewed, a P&S photo-conversion component which is used for converting P light and S light, a collimating lens group which is used for collimating light wave, a PBS component which is used for the polarizing beam-splitting of light wave, a beam-splitting selecting component which is used for uniformly spreading the light wave on a coupling input surface; a conjugated tri-phosphor staggered coupling input volume holographic grating which is used for dispersing incident ray and totally reflecting and transmitting the ray inside the substrate, a light-guide transmitting substrate which is used for totally reflecting and transmitting the light wave, and a conjugated tri-phosphor staggered coupling output volume holographic grating which is used for coupling the dispersed incident ray in sequence and outputting the ray to the outside of the substrate. The device has the advantages of full color, ultra-thinness, large field angle and simplicity in process and implementation, and can be applied to the damage-free display of a mobile screen, the display of a terminal, the scene teaching instruction for a doctor, the real-time information positioning for fire fighting, 3D game and other fields.
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Description

technical field

[0001] The invention relates to a near-eye optical display device, in particular to a volume holographic grating waveguide near-eye optical display device with conjugate narrow-band three primary colors interlaced. Background technique

[0002] At present, there is an increasing amount of information that needs to be browsed in daily life, and there are various ways to display the information in a centralized manner. However, the amount of information displayed by these devices is limited, and will cause damage to human health, especially irreparable damage to the eyesight of the viewer. Therefore, in order to centrally and conveniently grasp and analyze rich and complex image information and ensure the protection of the viewer's eyesight, the near-eye optical display system emerged as a wearable display device that can perfectly embody the above purpose. In order to reflect the concept of augmented reality and free hands, the head-mounted optical display ...

Claims

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