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CN-121978840-A - AR glasses

CN121978840ACN 121978840 ACN121978840 ACN 121978840ACN-121978840-A

Abstract

The invention discloses AR glasses, which comprise a glasses frame, a light machine and a waveguide, wherein the light machine is used for outputting image light, the waveguide is arranged on the glasses frame and is provided with a coupling-in area and a coupling-out area, the image light is coupled into the waveguide through the coupling-in area and is transmitted to the coupling-out area through total reflection in the waveguide and is coupled out through the coupling-out area, the light machine is arranged on one side, close to a nose bridge, of the glasses frame and is configured to project the image light to the coupling-in area, and compared with the prior art, the scheme can optimize the layout of the light machine and improve the structural reliability.

Inventors

  • Request for anonymity
  • ZHANG ZHUOPENG
  • WEI YIZHEN

Assignees

  • 杭州光粒科技有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (13)

  1. 1. An AR glasses, comprising: A frame; A light machine for outputting image light, and The waveguide is arranged on the mirror frame, a coupling-in area and a coupling-out area are arranged on the waveguide, the image light is coupled into the waveguide through the coupling-in area, is transmitted to the coupling-out area through total reflection in the waveguide, and is coupled out through the coupling-out area; The light machine is arranged on one side of the mirror frame close to the nose bridge, the light emergent surface of the light machine faces the coupling-in area of the waveguide, and the light machine is configured to project the image light to the coupling-in area.
  2. 2. The AR glasses according to claim 1, wherein the frame is provided with a mounting portion near the bridge of the nose, the mounting portion having a mounting cavity for mounting the light engine and a light outlet towards the coupling-in area.
  3. 3. The AR glasses according to claim 2, wherein an annular sealing structure is provided between the mounting portion and the waveguide, the annular sealing structure being disposed around the light outlet.
  4. 4. The AR eyeglass of claim 3, wherein the annular seal is an annular sealant; The annular sealing structure avoids the light-emitting path of the optical machine and is positioned on the outer peripheral side of the coupling-in area.
  5. 5. The AR glasses according to claim 2, wherein a protective layer is provided on a side of the waveguide facing away from the human eye, the protective layer being stacked with the waveguide in the frame.
  6. 6. The AR glasses according to claim 5, wherein the surface of the protective layer is provided with a light shielding region.
  7. 7. The AR glasses according to claim 6, wherein the light shielding region is formed on the surface of the protective layer by a silk screen process.
  8. 8. The AR glasses according to claim 6, wherein the light shielding region covers at least a spot formed on the protective layer at a portion of the image light which does not enter the waveguide through the coupling-in region.
  9. 9. The AR glasses according to any one of claims 6 to 8, wherein the light shielding region and the mounting portion at least partially overlap in a thickness direction of the AR glasses.
  10. 10. The AR glasses according to claim 2, wherein the AR glasses further comprise nose pads; the nose pad is mounted on the mounting portion.
  11. 11. The AR eyeglass of claim 10, wherein at least one of the mounting portion and the nose pad has a heat dissipating structure and/or a heat insulating structure.
  12. 12. The AR glasses according to claim 1, further comprising a temple mounted to the glasses frame, a control circuit mounted in the temple, and a battery mounted in the temple, the optomachine being electrically connected to the control circuit and the battery by a conductive member; The glasses frame is provided with a wire passing channel for the conductive piece to pass through.
  13. 13. The AR glasses according to claim 12, wherein the frame comprises: Rear frame, and A front frame mounted to the rear frame; Wherein at least a portion of the outer edge of the waveguide is located between the front frame and the rear frame, and the wire passing channel is formed between the front frame and the rear frame.

Description

AR glasses Technical Field The invention relates to the field of intelligent wearing, in particular to AR glasses. Background Augmented Reality (AR) smart glasses, an important wearable display device, are generally composed of components such as an optical machine, an optical waveguide, and a glasses frame. The optical machine is used for generating a virtual image, the waveguide transmits image light to eyes of a user through total reflection, and the lens frame bears the bearing and integrating functions of the optical elements. In the prior art, in order to make full use of space and facilitate circuit connection, the smart glasses often have a micro-optical machine arranged at the pile head part of the glasses, i.e. the joint of the glasses frame and the glasses legs. The layout can simplify the arrangement of electronic circuits, but the pile head is used as a key mechanical node of the glasses, needs to bear repeated torsion load when the glasses are opened, ensures stable movement of the hinge mechanism, embeds the optical machine component in the limited space, can occupy the space originally used for reinforcing the structure and arranging the hinge, forces the design to be compromised among mechanical strength, a movable gap and electronic integration, and leads to the increase of structural design complexity and failure risk, and in addition, the repeated torsion when the glasses are opened can be directly transmitted to the optical machine at the pile head, especially when the glasses are opened beyond the optimal opening angle, the optical machine can be slightly deviated or inclined in posture, so that the optical path deviation is caused, and the imaging precision and the display effect are seriously affected. In view of this, a new solution is needed to overcome the shortcomings of the prior art. Disclosure of Invention In order to solve the above problems, the AR glasses provided by the present invention can optimize the layout of the optical machine and improve the reliability and imaging performance of the structure. The present invention provides an AR glasses comprising: A frame; A light machine for outputting image light, and The waveguide is arranged on the mirror frame, a coupling-in area and a coupling-out area are arranged on the waveguide, the image light is coupled into the waveguide through the coupling-in area, is transmitted to the coupling-out area through total reflection in the waveguide, and the light-out surface of the waveguide faces the coupling-in area of the waveguide and is coupled out through the coupling-out area; The light machine is arranged on one side of the mirror frame, which is close to the nose bridge, and is configured to project the image light to the coupling-in area. The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions. Optionally, the position of the mirror frame near the bridge of the nose is provided with a mounting part, and the mounting part is provided with a mounting cavity for mounting the optical machine and a light outlet facing the coupling-in area. Optionally, an annular sealing structure is arranged between the mounting part and the waveguide, and the annular sealing structure is arranged around the light outlet. Optionally, the annular sealing structure is annular sealant; The annular sealing structure avoids the light-emitting path of the optical machine and is positioned on the outer peripheral side of the coupling-in area. Optionally, a protective layer is disposed on a side of the waveguide facing away from the human eye, and the protective layer and the waveguide are stacked in the lens frame. Optionally, a light shielding region is disposed on the surface of the protective layer. Optionally, the light shielding area is formed on the surface of the protective layer through a silk screen process. Optionally, the light shielding region covers at least a light spot formed on the protective layer at a portion of the image light that does not enter the waveguide through the coupling-in region. Optionally, the light shielding region and the mounting portion at least partially overlap in a thickness direction of the AR glasses. Optionally, the AR glasses further comprise a nose pad; the nose pad is mounted on the mounting portion. Optionally, at least one of the mounting portion and the nose pad has a heat dissipating structure and/or a heat insulating structure. Optionally, the AR glasses further include a glasses leg installed in the glasses frame, a control circuit installed in the glasses leg, and a battery installed in the glasses leg, and the optical machine is electrically connected with the control circuit and the battery through a conductive member; The