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CN-121995628-A - Augmented reality glasses

CN121995628ACN 121995628 ACN121995628 ACN 121995628ACN-121995628-A

Abstract

The application provides augmented reality glasses, which relate to the technical field of augmented reality and comprise a glasses body, a battery, a light engine, a waveguide sheet and a photoelectric converter, wherein the battery, the light engine, the waveguide sheet and the photoelectric converter are arranged on the glasses body, the waveguide sheet is arranged in at least one glasses frame of the glasses body, the battery is respectively and electrically connected with the light engine and the photoelectric converter, the battery is used for providing power for the light engine, the light engine is used for generating an image and outputting the image in a light form, the waveguide sheet is used for transmitting diffracted first light to human eyes by adopting a diffraction optical waveguide technology, and the photoelectric converter is used for recovering second light transmitted from the waveguide sheet without diffraction and converting the second light into electric energy and transmitting the electric energy to the battery. According to the application, the photoelectric converter is arranged on the glasses body, so that light rays transmitted from the waveguide sheet without diffraction can be effectively recovered, and wasted light energy is converted into electric energy and is returned to the battery, thereby remarkably prolonging the endurance time of the augmented reality glasses.

Inventors

  • ZHOU ZIJI
  • LIN YINYUE

Assignees

  • 华勤技术股份有限公司

Dates

Publication Date
20260508
Application Date
20241105

Claims (11)

  1. 1. The augmented reality glasses are characterized by comprising a glasses body, a battery, a light engine, a waveguide piece and a photoelectric converter, wherein the battery, the light engine, the waveguide piece and the photoelectric converter are arranged on the glasses body, the waveguide piece is arranged in at least one glasses frame of the glasses body, the battery is respectively and electrically connected with the light engine and the photoelectric converter, and the battery is arranged on the glasses body: the battery is used for providing power for the light engine; The light engine is used for generating an image and outputting the image in a light form; the waveguide sheet is used for transmitting the diffracted first light to human eyes by adopting a diffraction optical waveguide technology; the photoelectric converter is configured to recover the second light transmitted from the waveguide sheet without diffraction, convert the second light into electric energy, and transmit the electric energy to the battery.
  2. 2. The augmented reality glasses according to claim 1, wherein the glasses body is further provided with a control switch for controlling the light engine to be turned on or off; the photoelectric converter is further configured to receive ambient light around the augmented reality glasses when the light engine is turned off, and charge the battery with the ambient light.
  3. 3. The augmented reality glasses according to claim 2, wherein the receiving ambient light around the augmented reality glasses comprises: And receiving the ambient light which is diffracted when the ambient light irradiates the coupling-out area of the waveguide sheet, propagates through total reflection after entering the waveguide sheet, and is diffracted again in the coupling-in area of the waveguide sheet and enters the photoelectric converter.
  4. 4. The augmented reality glasses according to claim 1 or 2, wherein at least one of the battery, the light engine, and the photoelectric converter is two or more.
  5. 5. The augmented reality glasses according to claim 1 or 2, wherein the light engine is disposed at least one of: At least one glasses leg of the glasses body; Above at least one glasses frame of the glasses body; The nose bridge of the glasses body; the edge of the shell of the glasses body.
  6. 6. The augmented reality glasses according to claim 5, wherein the photoelectric converter is disposed in a target expansion region in a light transmission direction of the light engine, and the waveguide sheet is located between the light engine and the photoelectric converter.
  7. 7. The augmented reality glasses according to claim 6, wherein the target extension area is determined by: generating an extension line in the light transmission direction of the light engine as an endpoint extension line corresponding to the endpoint by taking the light engine as the endpoint, wherein the length of the endpoint extension line is smaller than a set length threshold; rotating the end point extension line according to a first direction by a first angle to obtain a first rotation line by taking the end point as a rotation center, and rotating the end point extension line according to a second direction by a second angle to obtain a second rotation line by taking the end point as a rotation center; Determining a region corresponding to the end point extension line as an expansion region in the light transmission direction of the light engine according to the end point extension line, the first rotation line and the second rotation line; Generating a horizontal extension line of the waveguide sheet; Dividing the expansion area into two sub expansion areas based on the horizontal extension line; and determining a sub extension area excluding the end point from the two sub extension areas as the target extension area.
  8. 8. The augmented reality glasses according to claim 5, wherein the photoelectric converter is disposed in a light transmission direction of the light engine and is arranged in a straight line with the light engine, the waveguide sheet is located between the light engine and the photoelectric converter, and the straight line is perpendicular to a horizontal extension line of the waveguide sheet.
  9. 9. The augmented reality glasses according to claim 1 or 2, wherein the energy recovery efficiency of the photoelectric converter for the second light is determined by physical parameters of the grating of the waveguide sheet coupling-in region, wavelength and incidence angle range of the second light, and photoelectric conversion efficiency of the photoelectric converter.
  10. 10. The augmented reality glasses according to claim 2, wherein a charging power of the photoelectric converter to charge the battery with the ambient light is determined by physical parameters of the grating of the waveguide sheet coupling-out region, an area of the coupling-out region, a radiation intensity and an incidence angle range of the ambient light, a diffraction efficiency, and a photoelectric conversion efficiency of the photoelectric converter.
  11. 11. The augmented reality glasses according to claim 1 or 2, wherein the photoelectric converter is a photovoltaic panel device.

Description

Augmented reality glasses Technical Field The application relates to the technical field of augmented reality, in particular to augmented reality glasses. Background Augmented reality (Augmented Reality, AR for short) is a technology that ingeniously merges virtual information with the real world. Augmented reality glasses, as a device capable of combining virtual images with the real world, can project images directly into the wearer's field of view, providing a sensory experience that exceeds reality. Currently, in order to achieve weight reduction and portability, a diffractive optical waveguide technology is considered as one of ideal schemes for designing augmented reality glasses, which uses the diffraction characteristics of a grating to efficiently transmit an image generated by an optical engine to a human eye. However, diffractive optical waveguide technology currently faces challenges of low diffraction efficiency and low energy utilization, resulting in shorter duration of augmented reality glasses. Accordingly, there is a need to provide a solution for extending the endurance of augmented reality glasses. Disclosure of Invention The application provides augmented reality glasses, which are used for solving the problem that the endurance time of the augmented reality glasses is shorter when the augmented reality glasses are designed by utilizing a diffraction optical waveguide technology in the related technology. In a first aspect, the application provides augmented reality glasses, which comprise a glasses body, a battery, a light engine, a waveguide piece and a photoelectric converter, wherein the battery, the light engine, the waveguide piece and the photoelectric converter are arranged on the glasses body, the waveguide piece is arranged in at least one glasses frame of the glasses body, the battery is respectively and electrically connected with the light engine and the photoelectric converter, and the battery is electrically connected with the light engine and the photoelectric converter: a battery for providing power to the light engine; a light engine for generating an image and outputting the image in the form of light; The waveguide sheet is used for transmitting the diffracted first light to human eyes by adopting a diffraction optical waveguide technology; And a photoelectric converter for recovering the second light transmitted from the waveguide sheet without diffraction, converting the second light into electric energy, and transmitting the electric energy to the battery. In one possible implementation, the glasses body is further provided with a control switch, the control switch is used for controlling the light engine to be turned on or off, and the photoelectric converter is further used for receiving ambient light around the augmented reality glasses when the light engine is turned off, and charging the battery by using the ambient light. In one possible implementation, receiving ambient light around the augmented reality glasses includes receiving ambient light that diffracts when impinging on the out-coupling region of the waveguide, propagates by total reflection after entering the waveguide, and diffracts again at the in-coupling region of the waveguide and enters the photoelectric converter. In one possible embodiment, at least one of the battery, the light engine, and the photoelectric converter is two or more. In one possible embodiment, the light engine is disposed at least one of on at least one temple of the eyeglass body, above at least one frame of the eyeglass body, on a nose bridge of the eyeglass body, and on a shell edge of the eyeglass body. In one possible embodiment, the photoelectric converter is disposed in a target expansion region in a light transmission direction of the light engine, and the waveguide sheet is located between the light engine and the photoelectric converter. In one possible implementation, the target expansion area is determined by taking the light engine as an endpoint, generating an endpoint extension corresponding to the endpoint of an extension line in the light transmission direction of the light engine, the length of the endpoint extension line being smaller than a set length threshold, rotating the endpoint extension line according to a first angle to obtain a first rotation line by taking the endpoint as a rotation center, rotating the endpoint extension line according to a second angle to obtain a second rotation line by taking the endpoint as a rotation center, determining that an area corresponding to the endpoint extension line is an expansion area in the light transmission direction of the light engine according to the endpoint extension line, the first rotation line and the second rotation line, generating a horizontal extension line of the waveguide sheet, dividing the expansion area into two sub expansion areas based on the horizontal extension line, and determining that the sub expansion areas excluding the endpoint i