AR laser emitter and AR device

Abstract

The AR laser emitter and the AR device are disclosed. The AR laser emitter comprises a speckle structure, two L-shaped support frames and a vertical cavity surface laser emission module. The two support frames are oppositely arranged. The speckle structure is arranged on the side of the two first arms away from the second arms. The vertical cavity surface laser emission module is arranged on the side of the two second arms close to the first arms. The opening between the two first arms is a first light outlet. The opening between the two second arms is a second light outlet. The vertical cavity surface laser emission module is used to generate a first laser and emit it towards the first light outlet. The vertical cavity surface laser emission module is also used to generate a second laser and emit it towards the second light outlet for eye tracking. The speckle structure is used to generate speckle structure light according to the first laser for 3D modeling. The AR laser emitter has the characteristics of simple structure, small size, high detection resolution and accurate detection.

Description

AR laser emitter and AR devices Technical Field

[0001] The present invention relates to the field of laser technology, and more particularly to an AR laser emitter and an AR device. Background Technology

[0002] Augmented Reality (AR) technology is a technique that calculates the position, angle, and corresponding image of a camera image in real time. It is a new technology that seamlessly integrates real-world information and virtual-world information, thereby enabling interaction by overlaying the virtual world on the screen onto the real world.

[0003] As AR products mature, internal eye tracking and external 3D modeling have become the main technical modules. Current mature eye tracking primarily uses infrared LEDs for illumination, along with corresponding sensors for imaging and display. However, this approach faces challenges in terms of both detection resolution and power consumption. External 3D modeling currently mainly utilizes independent Time-of-Flight (TOF) / structured light transmitter-receiver modules. Therefore, AR products require two independent transmitter-receiver modules to aggregate the corresponding signals onto the main computing chip for real-time calculation and processing. This results in a complex architecture and requires significant assembly space. Summary of the Invention

[0004] This invention provides an AR laser emitter and an AR device to simplify the structure of the AR laser emitter, reduce its size, and improve its detection resolution and accuracy.

[0005] In a first aspect, embodiments of the present invention provide an AR laser emitter, which includes a speckle structure, two L-shaped support frames, and a vertical cavity surface laser emission module;

[0006] The support frame includes a first arm and a second arm, with an angle of 90 degrees between the first arm and the second arm; the two support frames are arranged opposite to each other, the speckle structure is disposed on the side of the two first arms away from the second arms, the vertical cavity surface laser emission module is disposed on the side of the two second arms close to the first arms, the opening between the two first arms is a first light outlet, the opening between the two second arms is a second light outlet, and the projection of the first light outlet on the second arm covers the projection of the second light outlet on the second arm;

[0007] The vertical cavity surface laser emitting module is used to generate a first laser and emit it toward the first output port; the vertical cavity surface laser emitting module is also used to generate a second laser and emit it toward the second output port for human eye tracking; the speckle structure is used to generate speckle structured light based on the first laser for 3D modeling.

[0008] Optionally, the vertical cavity surface laser emitting module includes: a first electrode layer, a light-emitting layer, a second electrode layer, and a transparent substrate;

[0009] The first electrode layer is disposed on the transparent substrate, and the first electrode layer partially covers the transparent substrate. The projection of the second light-emitting port on the transparent substrate covers the portion of the transparent substrate not covered by the first electrode layer. The light-emitting layer is disposed on the side of the first electrode layer away from the transparent substrate. The second electrode layer is disposed on the side of the light-emitting layer away from the first electrode layer, and the second electrode layer partially covers the light-emitting layer. The projection of the first light-emitting port on the light-emitting layer covers the portion of the light-emitting layer not covered by the second electrode layer.

[0010] Optionally, the light-emitting layer includes a first reflective layer, an opto-isolation layer, an active layer, and a second reflective layer;

[0011] The first reflective layer is disposed on the side of the first electrode layer away from the transparent substrate, the active layer is disposed on the side of the first reflective layer away from the first electrode layer, the opto-isolating layer is disposed on the side of the active layer away from the first reflective layer, the opto-isolating layer partially covers the active layer, the projection of the first electrode layer onto the active layer and the projection of the second electrode layer onto the active layer both cover the portion of the active layer not covered by the opto-isolating layer, and the second reflective layer covers the opto-isolating layer and the active layer on the side away from the first reflective layer.

[0012] Optionally, the first reflective layer includes an N-type Bragg mirror, the opto-isolation layer includes an oxide layer, the second reflective layer includes a P-type Bragg mirror, and the active layer includes a multi-quantum-well structure or a multi-junction structure.

[0013] Optionally, the reflectivity of the first reflective layer is greater than that of the second reflective layer.

[0014] Optionally, a microlens is further provided on the side of the transparent substrate facing the light-emitting layer;

[0015] The microlens is disposed on the portion of the transparent substrate not covered by the first electrode layer; the microlens is used to perform speckle replication and expand the field of view of the light emitted by the light-emitting layer.

[0016] Optionally, the transparent substrate includes a transparent conductive film, and the microlens is formed by nanoimprinting of the portion of the transparent conductive film not covered by the first electrode layer.

[0017] Optionally, the width of the first light-emitting port is greater than the width of the second light-emitting port.

[0018] Optionally, the speckle structure includes a diffractive optical element, which is used to perform speckle replication and expand the field of view of the first laser emitted by the vertical cavity surface laser emission module.

[0019] Secondly, embodiments of the present invention also provide an AR device, which includes the AR laser emitter provided in any embodiment of the present invention.

[0020] The speckle structure used in this embodiment of the invention is the optical processing structure of an AR laser emitter. It can process the laser generated by the vertical cavity surface laser (VCSEL) module into speckle structured light capable of measuring distance and depth in the surrounding environment, thus improving the accuracy of the AR laser emitter's environmental detection. Two L-shaped support frames support and fix the speckle structure and the VCSEL module, ensuring a suitable positional relationship between them. This allows the laser emitted by the VCSEL module to efficiently enter the speckle structure at the first exit port and the human eye at the second exit port. Using the VCSEL module as the laser source for the AR laser emitter generates a first laser for eye tracking and a second laser for 3D modeling. Compared to existing technologies that use two independent emission modules, this simplifies the AR laser emitter structure and correspondingly reduces its size. Furthermore, the vertical-cavity surface-mount laser (VCSEL) emission module can adjust the power of the second laser used for eye tracking and the power of the first laser used for 3D modeling, thereby achieving high-power output of the first laser and low-power output of the second laser. This improves the resolution of the AR laser emitter for eye detection and enhances the accuracy of its detection of the surrounding environment. In summary, the AR laser emitter, composed of a speckle structure, two L-shaped support frames, and a VCSEL emission module, features simple structure, compact size, high detection resolution, and high detection accuracy. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a cross-sectional view of an AR laser emitter provided in an embodiment of the present invention;

[0023] Figure 2 is a cross-sectional view of a vertical cavity laser emission module provided in an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of another vertical cavity laser emission module provided in an embodiment of the present invention;

[0025] Figure 4 is a cross-sectional view of another vertical cavity laser emission module provided in an embodiment of the present invention;

[0026] Figure 5 is a structural schematic diagram of an AR device provided in an embodiment of the present invention. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] This invention provides an AR laser emitter, and Figure 1 is a cross-sectional view of an AR laser emitter provided by this invention. As shown in Figure 1, the AR laser emitter includes a speckle structure 100, two L-shaped support frames 200, and a vertical cavity surface laser emission module 300; each support frame 200 includes a first arm 210 and a second arm 220, with an included angle of 90 degrees between the first arm 210 and the second arm 220; the two support frames 200 are arranged opposite to each other, the speckle structure 100 is disposed on the side of the two first arms 210 away from the second arms 220, and the vertical cavity surface laser emission module 300 is disposed on the side of the two second arms 220 closer to the first arm 210. The opening between the first arms 210 is the first light-emitting port, and the opening between the two second arms 220 is the second light-emitting port. The projection of the first light-emitting port on the second arm 220 covers the projection of the second light-emitting port on the second arm 220. The vertical cavity surface laser emitting module 300 is used to generate a first laser and emit it toward the first light-emitting port. The vertical cavity surface laser emitting module 300 is also used to generate a second laser and emit it toward the second light-emitting port for human eye tracking. The speckle structure 100 is used to generate speckle structured light based on the first laser for 3D modeling.

[0030] The vertical-cavity surface-emitting laser (VCSEL) module 300 serves as the laser source for the AR laser emitter. It can generate laser light for eye tracking and also for 3D modeling. The speckle structure 100 is the light processing structure of the AR laser emitter, which processes the first laser emitted by the VCSEL module 300 into speckle structured light capable of measuring distance and depth in the surrounding environment. Exemplarily, the speckle structure 100 includes diffractive optical elements for speckle replication and field-of-view expansion of the first laser emitted by the VCSEL module 300. Two L-shaped support frames 200 serve as fixtures supporting the speckle structure 100 and the VCSEL module 300, ensuring a suitable positional relationship between them, thereby allowing the light emitted by the VCSEL module 300 to efficiently enter the speckle structure 100.

[0031] As shown in Figure 1, the support frame 200 includes a first arm 210 and a second arm 220, with an included angle of 90 degrees between them. For example, the first arm 210 is perpendicular to the horizontal plane, and the second arm 220 is parallel to the horizontal plane. The two support frames 200 are arranged opposite each other, that is, the second arms 220 of the two support frames 200 are arranged close to each other, and the first arms 210 of the two support frames 200 are arranged parallel to each other. The speckle structure 100 is disposed on the side of the two first arms 210 away from the second arms 220, that is, the speckle structure 100 is disposed at the first light outlet. The vertical cavity surface laser emission module 300 is disposed on the side of the two second arms 220 close to the first arms 210, that is, the vertical cavity surface laser emission module 300 is disposed at the second light outlet. The projection of the first light-emitting port on the second arm 220 covers the projection of the second light-emitting port on the second arm 220. In other words, the projection of the speckle structure 100 on the second arm 220 covers the projection of the vertical cavity surface laser emitting module 300 on the second arm 220.

[0032] Based on the positional relationships between the various structures described above, the working principle of the AR laser emitter is as follows: The first laser generated by the vertical-cavity surface-emitting laser module 300 is emitted towards the first output port, that is, towards the speckle structure 100. After receiving the first laser generated by the vertical-cavity surface-emitting laser module 300, the speckle structure 100 processes it into speckle structured light. Since speckle structured light can measure distance and depth of the surrounding environment, it can be used for 3D modeling. At the same time, the second laser generated by the vertical-cavity surface-emitting laser module 300 is emitted towards the second output port. After exiting the second output port, the second laser can enter the human eye for eye tracking. Therefore, this application uses the vertical-cavity surface-emitting laser module 300 as the laser source for eye tracking and 3D modeling. Compared with the prior art which uses two independent emission modules, this simplifies the AR laser emitter structure and correspondingly reduces the size of the AR laser emitter.

[0033] Furthermore, since the power requirements of the AR laser emitter differ between the second laser used for eye tracking and the first laser used for 3D modeling, using a vertical cavity surface laser emission module 300 as the laser source allows for adjustment of the power of the second laser used for eye tracking and the first laser used for 3D modeling. This enables a high-power output for the first laser and a low-power output for the second laser, thereby improving the resolution of the AR laser emitter's detection of the surrounding environment.

[0034] The speckle structure 100 used in this embodiment of the invention serves as the optical processing structure of the AR laser emitter. It processes the laser generated by the vertical cavity surface laser emission module 300 into speckle structured light capable of measuring distance and depth in the surrounding environment, thereby improving the accuracy of the AR laser emitter's environmental detection. Two L-shaped support frames 200 support and fix the speckle structure 100 and the vertical cavity surface laser emission module 300, ensuring a suitable positional relationship between them. This allows the laser emitted by the vertical cavity surface laser emission module 300 to efficiently enter the speckle structure 100 at the first exit port and the human eye at the second exit port. Using the vertical cavity surface laser emission module 300 as the laser source for the AR laser emitter generates a first laser for eye tracking and a second laser for 3D modeling. Compared to the prior art which uses two independent emission modules, this simplifies the AR laser emitter structure and correspondingly reduces its size. Furthermore, the vertical-cavity surface-emitting laser module 300 can adjust the power of the second laser used for eye tracking and the power of the first laser used for 3D modeling, thereby achieving high-power output of the first laser and low-power output of the second laser. This improves the resolution of the AR laser emitter for eye detection and enhances the accuracy of the AR laser emitter for detecting the surrounding environment. In summary, the AR laser emitter, composed of the speckle structure 100, two L-shaped support frames 200, and the vertical-cavity surface-emitting laser module 300, features a simple structure, compact size, and high detection resolution.

[0035] Figure 2 is a cross-sectional view of a vertical cavity surface laser emitting module provided in an embodiment of the present invention. As shown in Figure 2, the vertical cavity surface laser emitting module 300 includes: a first electrode layer 310, a light-emitting layer 320, a second electrode layer 330, and a transparent substrate 340; the first electrode layer 310 is disposed on the transparent substrate 340, and the first electrode layer 310 partially covers the transparent substrate 340, and the projection of the second light-emitting port on the transparent substrate 340 covers the portion of the transparent substrate 340 not covered by the first electrode layer 310; the light-emitting layer 320 is disposed on the side of the first electrode layer 310 away from the transparent substrate 340, the second electrode layer 330 is disposed on the side of the light-emitting layer 320 away from the first electrode layer 310, the second electrode layer 330 partially covers the light-emitting layer 320, and the projection of the first light-emitting port on the light-emitting layer 320 covers the portion of the light-emitting layer 320 not covered by the second electrode layer 330.

[0036] The transparent substrate 340 serves as a support plate for the first electrode layer 310, the light-emitting layer 320, and the second electrode layer 330. The first electrode layer 310, the light-emitting layer 320, and the second electrode layer 330 are sequentially disposed on the transparent substrate, with the light-emitting layer 320 positioned between the first electrode layer 310 and the second electrode layer 330. When the first electrode layer 310 and the second electrode layer 330 are energized, they supply power to the light-emitting layer 320, causing it to generate a first laser beam and a second laser beam. Furthermore, the first electrode layer 310 is opaque and partially covers the transparent substrate 340. The projection of the second light-emitting port onto the transparent substrate 340 covers the portion of the transparent substrate 340 not covered by the first electrode layer 310. Therefore, the second laser beam generated by the light-emitting layer 320 can be transmitted through the portion of the transparent substrate 340 not covered by the first electrode layer 310, meaning the second laser beam generated by the light-emitting layer 320 can be emitted from the second light-emitting port. Similarly, the second electrode layer 330 is also opaque. The second electrode layer 330 partially covers the light-emitting layer 320. The projection of the first light-emitting port onto the light-emitting layer 320 covers the part of the light-emitting layer 320 not covered by the second electrode layer 330. Thus, the first laser generated by the light-emitting layer 320 can be emitted from the part of the light-emitting layer 320 not covered by the second electrode layer 330. In other words, the first laser generated by the light-emitting layer 320 can be emitted from the second light-emitting port.

[0037] Figure 3 is a cross-sectional view of another vertical cavity surface laser emitting module provided in an embodiment of the present invention. As shown in Figure 3, the light-emitting layer 320 includes a first reflective layer 321, an opto-isolation layer 322, an active layer 323, and a second reflective layer 324. The first reflective layer 321 is disposed on the side of the first electrode layer 310 away from the transparent substrate 340. The active layer 323 is disposed on the side of the first reflective layer 321 away from the first electrode layer 310. The opto-isolation layer 322 is disposed on the side of the active layer 323 away from the first reflective layer 321. The opto-isolation layer 322 partially covers the active layer 323. The projection of the first electrode layer 310 onto the active layer 323 and the projection of the second electrode layer 330 onto the active layer 323 both cover the portion of the active layer 323 not covered by the opto-isolation layer 322. The second reflective layer 324 covers the opto-isolation layer 322 and the active layer 323 on the side away from the first reflective layer 321.

[0038] The first reflective layer 321 and the second reflective layer 324 are composed of two semiconductor materials with different high and low refractive indices and an odd multiple of the thickness of a quarter of the lasing wavelength, in order to select the lasing wavelength. The opto-isolation layer 322 can confine the external electric field and the internal optical field. At the location where the opto-isolation layer 322 does not cover the active layer 323, recombination of charge carriers occurs under the action of the external electric field to form a lasing.

[0039] Specifically, the first reflective layer 321 includes an N-type Bragg mirror, the opto-isolation layer 322 includes an oxide layer, the second reflective layer 324 includes a P-type Bragg mirror, and the active layer includes a multi-quantum well structure or a multi-junction structure.

[0040] Multi-junction structures, formed by connecting multiple quantum well structures through tunnel junctions, can improve laser output power. When an external current is injected into the P-type and N-type Bragg mirrors and a positive voltage is applied, mobile charge carriers (electrons and holes) are generated. The oxide layer can restrict the lateral movement of these charge carriers generated under the applied current or voltage. At locations where the oxide layer does not cover the quantum well or multi-junction structure, the electrons and holes moving under the applied current or voltage recombine, thus lasing photons.

[0041] Optionally, the reflectivity of the first reflective layer 321 is greater than that of the second reflective layer 324.

[0042] The reflectivity of the vertical cavity laser emission module can be adjusted by changing the logarithm of the first reflective layer 321 and the second reflective layer 324. When the reflectivity of the first reflective layer 321 is greater than that of the second reflective layer 324 (for example, the ratio of the output power of the first laser to the output power of the second laser is 200:1), a high-power output of the first laser and a low-power output of the second laser can be achieved. This satisfies the power requirements of the AR laser emitter for 3D modeling, improves the resolution of the AR laser emitter in detecting human eyes, and enhances the accuracy of the AR laser emitter in detecting the surrounding environment.

[0043] Figure 4 is a cross-sectional view of another vertical cavity surface laser emitting module provided in an embodiment of the present invention. As shown in Figure 4, a microlens 341 is also provided on the side of the transparent substrate 340 facing the light-emitting layer 320; the microlens 341 is disposed on the part of the transparent substrate 340 not covered by the first electrode layer 310; the microlens 341 is used to perform speckle replication and expand the field of view of the light emitted by the light-emitting layer 320.

[0044] Among them, the microlens 341 can be another optical processing structure of the AR laser emitter, which can perform speckle replication and field-of-view expansion processing on the incident second laser to generate speckle structured light for tracking the human eye. The low-power second laser is processed into low-power speckle structured light by the microlens 341, which can collect the position information of the human eyeball. After the echo reflected by the human eye is received by the optical sensor, the movement trajectory of the eyeball can be accurately determined.

[0045] Optionally, the transparent substrate 340 includes a transparent conductive film, and the microlens 341 is formed by nanoimprinting of the transparent conductive film that is not covered by the first electrode layer 310.

[0046] The transparent conductive film serves a supporting function, for example, it can act as a supporting substrate for the first electrode layer 310, the light-emitting layer 320, and the second electrode layer 330. The transparent conductive film is conductive, allowing voltage to be applied to the first electrode layer 310 by passing an electric current through it. The transparent conductive film is also transparent; the projection of the second light-emitting port onto the transparent conductive film covers the portion of the transparent conductive film not covered by the first electrode layer 310. Therefore, the second laser generated by the light-emitting layer 320 can be transmitted through the portion of the transparent conductive film not covered by the first electrode layer 310, meaning the second laser generated by the light-emitting layer 320 can be emitted from the second light-emitting port.

[0047] The microlens 341 is a microstructure formed by nanoimprinting of the transparent conductive film not covered by the first electrode layer 310. It can perform speckle replication and field-of-view expansion processing on the incident second laser, generating speckle structured light that can be tracked by the human eye.

[0048] Optionally, the width of the first light-emitting port is greater than the width of the second light-emitting port.

[0049] The vertical-cavity surface-mount laser (VCSEL) emits a high-power first laser from its first output port. This laser, after passing through the speckle structure 100, forms a large-area speckle structure light array, significantly improving the accuracy of 3D modeling of the surrounding environment. The VCSEL emits a low-power second laser from its second output port. This laser, after passing through the microlens 341, forms a small-area speckle structure light array for eye tracking, greatly improving the resolution of eye detection.

[0050] Figure 5 is a schematic diagram of the structure of an AR device provided in an embodiment of the present invention. As shown in Figure 5, the AR device 01 includes an AR laser emitter 02 provided in any embodiment of the present invention, and therefore has the beneficial effects of the AR laser emitter 02 provided in the embodiment of the present invention, which will not be described in detail here.

[0051] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0052] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An AR laser emitter, characterized in that, The system includes a speckle structure, two L-shaped support frames, and a vertical cavity surface laser (VCSEL) emitting module. Each support frame includes a first arm and a second arm, with a 90-degree angle between them. The two support frames are arranged opposite each other. The speckle structure is located on the side of the two first arms furthest from the second arms, and the VCSEL emitting module is located on the side of the two second arms closest to the first arms. The opening between the two first arms is a first light-emitting port, and the opening between the two second arms is a second light-emitting port. The projection of the first light-emitting port onto the second arm overlaps the projection of the second light-emitting port onto the second arm. The VCSEL emitting module generates a first laser beam and emits it toward the first light-emitting port. The VCSEL emitting module also generates a second laser beam and emits it toward the second light-emitting port for eye tracking. The speckle structure generates speckle structured light based on the first laser beam for 3D modeling.

2. The AR laser emitter according to claim 1, characterized in that, The vertical cavity surface laser emitting module includes: a first electrode layer, a light-emitting layer, a second electrode layer, and a transparent substrate; the first electrode layer is disposed on the transparent substrate, partially covering the transparent substrate, and the projection of the second light-emitting port on the transparent substrate covers the portion of the transparent substrate not covered by the first electrode layer; the light-emitting layer is disposed on the side of the first electrode layer away from the transparent substrate, the second electrode layer is disposed on the side of the light-emitting layer away from the first electrode layer, partially covering the light-emitting layer, and the projection of the first light-emitting port on the light-emitting layer covers the portion of the light-emitting layer not covered by the second electrode layer.

3. The AR laser emitter according to claim 2, characterized in that, The light-emitting layer includes a first reflective layer, an opto-isolating layer, an active layer, and a second reflective layer. The first reflective layer is disposed on the side of the first electrode layer away from the transparent substrate. The active layer is disposed on the side of the first reflective layer away from the first electrode layer. The opto-isolating layer is disposed on the side of the active layer away from the first reflective layer. The opto-isolating layer partially covers the active layer. The projections of the first electrode layer onto the active layer and the second electrode layer onto the active layer both cover the portion of the active layer not covered by the opto-isolating layer. The second reflective layer covers the opto-isolating layer and the active layer on the side away from the first reflective layer.

4. The AR laser emitter according to claim 3, characterized in that, The first reflective layer includes an N-type Bragg mirror, the opto-isolation layer includes an oxide layer, the second reflective layer includes a P-type Bragg mirror, and the active layer includes a multi-quantum well structure or a multi-junction structure.

5. The AR laser emitter according to claim 3, characterized in that, The reflectivity of the first reflective layer is greater than that of the second reflective layer.

6. The AR laser emitter according to claim 2, characterized in that, A microlens is also provided on the side of the transparent substrate facing the light-emitting layer; the microlens is disposed on the part of the transparent substrate not covered by the first electrode layer; the microlens is used to perform speckle replication and expand the field of view of the light emitted by the light-emitting layer.

7. The AR laser emitter according to claim 6, characterized in that, The transparent substrate includes a transparent conductive film, and the microlens is formed by nanoimprinting of the transparent conductive film that is not covered by the first electrode layer.

8. The AR laser emitter according to claim 1, characterized in that, The width of the first light-emitting port is greater than the width of the second light-emitting port.

9. The AR laser emitter according to claim 1, characterized in that, The speckle structure includes a diffractive optical element, which is used to replicate the speckle pattern of the first laser emitted by the vertical cavity laser emission module and expand the field of view.

10. An AR device, characterized in that, Includes the AR laser emitter as described in any one of claims 1-9.

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