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Intelligent glasses capable of expanding eye box

A technology of smart glasses and beams, applied in optics, instruments, nonlinear optics, etc., can solve problems such as increasing the complexity of the adjustment mechanism

Pending Publication Date: 2022-04-22
ACER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mechanical or electromechanical control methods increase the complexity of its adjustment mechanism

Method used

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  • Intelligent glasses capable of expanding eye box
  • Intelligent glasses capable of expanding eye box
  • Intelligent glasses capable of expanding eye box

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] refer to figure 1 , which shows a top view of smart glasses according to an embodiment of the present invention. The smart glasses 1 include at least one beam translation module 100, a projector 200, a lens 300 and a diffractive optical element 400, wherein the diffractive optical element 400 is disposed on the lens 300, the projector 200 provides a polarized image beam, and at least one beam translation module 100 is arranged on the path of the image beam, and the image beam is reflected by the diffractive optical element 400 and enters the user's eye EY1.

[0048] refer to Figure 2A and Figure 2B , Figure 2A It shows a top view of a projector and a beam translation module of smart glasses according to an embodiment of the present invention, Figure 2B show Figure 2A Top view of the two sets of beam translation modules in . In this embodiment, two sets of beam translation modules 101 and 102 are configured, which can be regarded as figure 1 A possible implem...

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Abstract

The invention provides intelligent glasses for expanding an eye box. The intelligent glasses comprise a projector and at least one light beam translation module. The projector is used for providing a polarized image light beam. The at least one light beam translation module is arranged on the path of the image light beam and comprises an adjustable liquid crystal panel and a birefringent crystal plate. The adjustable liquid crystal panel is arranged on the path of the image light beam and is used for adjusting the phase retardation of the image light beam. The birefringent crystal plate is arranged on the path of the image light beam from the adjustable liquid crystal panel. And after the phase retardation is adjusted by the adjustable liquid crystal panel, the image light beam emitted from the birefringent crystal plate translates along the direction parallel to the light emitting surface of the birefringent crystal plate.

Description

technical field [0001] The invention relates to smart glasses, in particular to smart glasses with an extended eye box. Background technique [0002] With the advancement of display technology, augmented reality (augmented reality) display technology and virtual reality (virtual reality) display technology are gradually popularized and widely used in people's lives. This type of display technology belongs to the visual optical system. In the field of visual optics, the space in which the eyes can observe images or the space in which the eyes can observe clear images is called the eyebox. When the visual direction or position of the user's eyes exceeds the scope of the eye box, the user will not see the image, or see an unclear image. [0003] In practical applications, since different users have different eye-pupillary distances, if the eye box of the visual optical system is fixed and cannot be expanded, it will inevitably impose restrictions on users. Therefore, the dev...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02F1/13363G03B21/20
CPCG02B27/0101G02F1/13363G03B21/2073G02B2027/0178
Inventor 涂宗伟黄士挺邱奕荣李彦贤
Owner ACER INC