CN211857057U

CN211857057U - Near-to-eye display equipment

Info

Publication number: CN211857057U
Application number: CN201922159304.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Chengdu Idealsee Technology Co Ltd
Current assignee: Chengdu Idealsee Technology Co Ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-11-03
Anticipated expiration: 2029-12-05

Abstract

The embodiment of the utility model discloses near-to-eye display device, the utility model provides a contain a style of calligraphy holding roof beam among the near-to-eye display device, as the glasses crossbeam, inside cavity is used for holding optical module, and the waveguide lens sets up in the bottom side of a style of calligraphy holding roof beam, and head support cover and nose hold in the palm, both ends are equipped with the flank structure of backward extension about a style of calligraphy holding roof beam, are provided with on the inboard of flank structure to be used for the mounting of being connected with cramping the bandeau, cramping the bandeau is used for cramping user's head, two optical fiber transmission lines, respectively along parallel in the extending direction of flank structure is fixed in the flank is structural, and be connected in optical module in a style of calligraphy holding roof beam. By adopting the structure of the linear accommodating beam, the optical element for displaying imaging can be arranged in front, and the size and the weight of the near-to-eye display equipment can be effectively reduced without an excessive accommodating structure.

Description

Near-to-eye display equipment

Technical Field

The utility model relates to a scanning display technical field, concretely relates to near-to-eye display device.

Background

Augmented Reality (AR) display is a new display technology in which real world information and virtual information are superimposed on the same screen or space in real time. After a user wears the corresponding near-eye display equipment, human eyes can receive natural environment light rays and virtual images superposed in the natural environment in real time, and the sense organ experience beyond reality is achieved. Generally, in practical application scenarios, AR display may be implemented by a near-eye display device such as AR glasses.

For some of the near-eye display devices currently marketed, such as AR glasses, such as microsoft's HoloLens, the overall size is large and not suitable for long-term wear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a near-to-eye display device to realize small volume, the lightweight of certain degree.

An embodiment of the utility model provides a near-to-eye display device, near-to-eye display device is as AR glasses, include: the linear accommodating beam is used as a glasses beam and is hollow inside for accommodating the optical module;

the waveguide lens is arranged below the linear accommodating beam and corresponds to the left eye and the right eye of a user, light beams output by the optical module are incident to the waveguide lens, and the light beams are transmitted in the waveguide lens and then output;

the head support cover and the nose support are respectively and fixedly connected to the middle position of the rear surface of the linear containing beam, the head support cover exceeds the top surface of the linear containing beam, and the nose support is positioned behind the waveguide lens;

the left end and the right end of the straight-line-shaped accommodating beam are provided with side wing structures extending backwards, the inner sides of the side wing structures are provided with fixing pieces used for being connected with a tightening head band, and the tightening head band is used for tightening the head of a user;

and the two optical fiber transmission lines are respectively fixed on the side wing structures along the extending direction parallel to the side wing structures and are connected with the optical module in the linear accommodating beam.

Optionally, the optical modules are accommodated in the linear accommodating beam in two ways, each of which includes: the optical fiber scanner, the lens group and the turning mirror are parallel to the longitudinal direction of the linear containing beam and are sequentially arranged along the direction of the end side of the linear containing beam towards the middle position.

Optionally, the optical fiber transmission line includes an optical fiber, a signal transmission line and a power line;

the optical fiber penetrates through the optical fiber scanner, and a scanning optical fiber is formed at the output end of the optical fiber scanner and used for scanning an output light beam;

the signal transmission line and the power line are connected to an actuating part in the optical fiber scanner and used for supplying power and transmitting a driving control signal.

Optionally, the surface of the optical fiber transmission line outside the linear accommodating beam is provided with a protective layer.

Optionally, the other end of the optical fiber transmission line is connected with an external image source device.

Optionally, the beam body of the linear accommodating beam is in a rectangular column shape with the left end and the right end bent backwards according to a set curvature.

Optionally, the front surface of the in-line receiving beam is detachable.

Optionally, the head support cover is fixed to the linear receiving beam by a rotatable connecting shaft.

Optionally, the rotation mode of the rotatable connecting shaft is damping rotation.

Optionally, the length of the left and right sides of the head support cover is greater than the length of the upper and lower sides.

Optionally, the tightening headband is an elastic headband, and two ends of the tightening headband are connected and fixed with the fixing pieces of the side wing structures through connecting buckles.

Optionally, the tightening headband comprises a left and a right separate headband sections, and the left and the right separate headband sections are respectively connected and fixed with the fixing member of the side wing structure through a connecting buckle.

Optionally, the two separate headband sections are provided with tightening parts at positions far away from the connecting buckle;

wherein the tightening means comprises at least: one of a tightening rope, a tightening belt buckle and a magic tape.

Optionally, a limiting ring is arranged on the tightening head band, and the limiting ring is sleeved on the tightening head band and the optical fiber transmission line and used for clamping the optical fiber transmission line on the outer side of the tightening head band.

Optionally, the number of the stop collars is at least two.

Optionally, the stop collar is movable.

Adopt the embodiment of the utility model provides an in technical scheme can realize following technological effect:

for the near-eye display equipment in the scheme, the optical fiber scanner has the characteristic of miniaturization, and the optical fiber scanner does not need complex light path design, so that an optical module comprising the optical fiber scanner can be accommodated in the linear accommodating beam. Meanwhile, the structure of the linear accommodating beam is adopted, the optical element is accommodated, and meanwhile the glasses beam of the AR glasses is used as the glasses beam, so that the optical element for displaying imaging can be arranged in front, redundant accommodating structures are not needed, and the size and the weight of the near-to-eye display equipment can be effectively reduced.

The near-eye display device does not have temples but uses a cinching headband instead of the temples, which may provide a more effective fixed support. And, still be provided with the head support cover among the nearly eye display device, the head support cover is laminated with user's forehead through its curved surface cover body, can provide stable holding power for nearly eye display device is whole with the help of user's forehead. The supporting and fixing structure is suitable for being worn by a user for a long time.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1a is a schematic structural diagram of an illustrative scanning display system according to an embodiment of the present invention;

fig. 1b is a schematic structural diagram of an illustrative optical fiber scanner according to an embodiment of the present invention;

fig. 2a is a schematic perspective view of an illustrative waveguide according to an embodiment of the present invention;

fig. 2b is a schematic structural diagram of an illustrative near-eye display system according to an embodiment of the present invention;

fig. 3a to 3d are schematic structural diagrams of a near-eye display device provided in an embodiment of the present invention at different viewing angles;

fig. 4a and 4b are schematic structural diagrams of an optical module in a near-eye display device according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.

The utility model discloses in, near-to-eye display device specifically can be AR head mounted device, near-to-eye display device can produce virtual image, this virtual image can superpose on actual environment image to provide augmented reality for the user and experience. In other words, in order to generate a corresponding virtual image, a corresponding optical element needs to be provided in the near-eye display device. Consider simultaneously realizing lightweight, the little volume of near-to-eye display device, it is higher to the requirement of optical module, the event the utility model discloses a can adopt optical fiber scanner and relevant optical element to realize the demonstration of virtual image among the near-to-eye display device, of course, understand, scanning display device is not limited to the optical fiber scanner, in the scheme of the utility model, still can adopt such as scanning display device such as Micro-Electro-Mechanical System (MEMS) scanning mirror, the embodiment of the utility model provides an in, mainly explain with the optical fiber scanner as the example. For ease of understanding, the fiber scanner and near-to-eye display system of the present invention will be described first.

Illustrative scanning display system and near-to-eye display system

As shown in fig. 1a, an illustrative scanning display system according to the present invention mainly includes:

the laser system comprises a processor 100, a laser group 110, a fiber scanner 120, a transmission fiber 130, a light source modulation circuit 140, a scanning driving circuit 150 and a beam combining unit 160.

The processor 100 may be a Graphics Processing Unit (GPU), a Central Processing Unit (CPU), or other chips or circuits having a control function and an image Processing function, and is not limited in particular.

In operation, the processor 100 may control the light source modulation circuit 140 to modulate the laser group 110 according to image data to be displayed, where the laser group 110 includes a plurality of monochromatic lasers, and the lasers emit light beams of different colors respectively. As shown in fig. 1a, three-color lasers of Red (R), Green (G) and Blue (B) can be specifically used in the laser group. The light beams emitted by the lasers in the laser group 110 are combined into a laser beam by the beam combining unit 160 and coupled into the transmission fiber 130.

The processor 100 controls the scan driving circuit 150 to drive the fiber scanner 120 to scan, so as to scan out the light beam transmitted in the transmission fiber 130.

The light beam scanned and output by the fiber scanner 120 acts on a certain pixel point position on the medium surface, and forms a light spot on the pixel point position, so that the pixel point position is scanned. Driven by the optical fiber scanner 120, the output end of the transmission optical fiber 130 scans according to a certain scanning track, so that the light beam moves to the corresponding pixel position for scanning. During actual scanning, the light beam output by the transmission fiber 130 will form a light spot with corresponding image information (e.g., color, gray scale or brightness) at each pixel location. In a frame time, the light beam traverses each pixel position at a high enough speed to complete the scanning of a frame of image, and because the human eye observes the object and has the characteristic of 'visual residual', the human eye cannot perceive the movement of the light beam at each pixel position but sees a frame of complete image.

With continued reference to FIG. 1b, a specific configuration of the fiber scanner 120 is shown, which includes: an actuator 121, a fiber optic cantilever 122, a scanner enclosure 124, and a mount 125. The actuator 121 is fixed in the scanner package 124 through a fixing element 125, the transmission fiber 130 extends at a free end of the actuator 121 to form a fiber suspension arm 122 (also called a scanning fiber), when the optical fiber scanning device works, the actuator 121 is driven by a scanning driving signal to vibrate along a first direction (Y direction) and a second direction (X direction), and driven by the actuator 121, the free end of the fiber suspension arm 122 sweeps along a preset track and emits a light beam, and the emitted light beam can scan on the surface of a medium. It should be noted that the transmission optical fiber 130 enters the actuating portion 121 from the end a, wherein the light beam can be transmitted to the optical fiber cantilever 122 at the end B, and in a possible embodiment, the transmission optical fiber 130 penetrates the actuating portion 121 and extends to form the optical fiber cantilever 122 at the free end of the actuating portion 121; alternatively, the transmission fiber 130 is accessed from the a-end to the actuator 121 and precisely docked with the fiber cantilever 122 at the B-end inside the actuator 121, so that the light beam can be output into the fiber cantilever 122, i.e., the transmission fiber 130 and the fiber cantilever 122 are not integral.

The corresponding content of the foregoing fig. 1a and fig. 1b shows the basic structure and the basic operation principle of the optical fiber scanner, and for the near-eye display device, especially for the AR glasses, in addition to the foregoing scanning display system, corresponding lenses and waveguides are also required to cooperate to form an applicable near-eye display system, so as to realize the overlay display of the virtual image and the real world environment light.

On the basis of the above illustrative scanning display system, reference may be further made to the illustrative contents shown in fig. 2a and 2 b. Referring to fig. 2a, an exemplary three-dimensional structure of a waveguide is shown, specifically, the waveguide 203 includes a coupling-in unit 2031, a relay unit 2033, and a coupling-out unit 2032, and a light beam is input into the waveguide 203 from the coupling-in unit 2031, input into the coupling-out unit 2032 after being expanded in the relay unit 2033 in the X direction, and output after being expanded in the coupling-out unit 2032 in the Y direction. The arrows on the waveguide 203 shown in fig. 2a represent the direction of transmission of the light beam.

Fig. 2b is an illustrative near-eye display system in an embodiment of the present application, which can be applied to AR glasses, and the optical system at least includes: a fiber scanner 201, a lens 202, and a waveguide 203. The light beam scanned and output by the fiber scanner 201 passes through the lens 202, enters the waveguide 203 from the coupling-in unit 2031 of the waveguide 203, is transmitted, is expanded by the relay unit (not shown in fig. 2 b), and is coupled out by the coupling-out unit 2032 to enter the human eye.

Of course, the positional relationship, structural configuration, and the like of the waveguide and the near-eye display system shown in fig. 2a and 2b are merely examples, and should not be construed as limiting the present invention.

On the basis of the above illustrative content, the technical solutions in the embodiments of the present invention will be described in detail. In addition, for the convenience of description in the following embodiments, the directional coordinate system shown in the foregoing description may be adopted in the following embodiments, and should not be taken as a limitation of the present invention.

Near-to-eye display device

A novel near-to-eye display device 30 is provided for use as AR glasses. Specifically, referring to fig. 3a to 3d, it should be noted that the positional relationships of the left and right ends, the front and back, the top and bottom, and the like described in the present application are based on the state of the near-eye display device 30 when worn, and therefore, the following may be defined: the front surface (or front) is a surface (or direction) far away from the face of a user, the rear surface (or rear) is a surface (or direction) facing the face of the user, the top surface (or upper) is a surface (or direction) consistent with the orientation of the top of the head of the user, the bottom surface (or lower) is a surface (or direction) opposite to the top surface (or upper), and the left end and the right end are consistent with the left-right direction division when the user wears the glasses.

The near-eye display device 30 includes: a display unit 31, a support unit 32, and a wearing unit 33. Wherein:

the display section 31 further includes: a linear beam 310 and a waveguide lens 312, wherein the linear beam 310 is hollow for accommodating optical elements. In the present embodiment, the waveguide lenses 312 have two waveguide lenses 312 corresponding to the left and right eyes of the user, respectively, the linear-shaped accommodating beam 310 can accommodate two optical modules (the optical modules can include optical elements such as an optical fiber scanner and a lens set), the two generated light beams respectively act on the two waveguide lenses 312, and the light beams are transmitted and output in the waveguide lenses 312, so as to realize the display of the virtual image. The in-line receiving bridge 310 serves as a bridge for AR eyewear while serving to receive optical components.

The linear receiving beam 310 is substantially rectangular column-shaped in overall shape, four surfaces along the axial direction thereof are substantially flat, and the left and right ends of the beam body are bent backward by a certain curvature, the degree of bending being substantially 90 °. Of course, different degrees of bending may be used in practice, and are not particularly limited herein. The left and right ends of the linear receiving beam 310 are provided with wing structures 314 extending backwards, and the inner sides of the wing structures 314 are provided with fixing structures 3142 for connecting with the wearing part 33. Two optical fiber transmission lines 316 respectively pass through the middle position of the wing structures 314 along the extending direction of the wing structures 314 at the two ends of the linear accommodating beam 310 and are connected to the optical elements in the linear accommodating beam 310. It should be understood that fig. 3 a-3 d are primarily intended to visually illustrate the positional relationship of various structural components in the external configuration of the near-eye display device 30, and that only a short segment of the optical fiber transmission line 316 is shown and should not be construed as limiting the present application.

In this embodiment, the front surface of the in-line receiving beam 310 is detachable, and the top, bottom, and rear surfaces of the in-line receiving beam 310 are fixed to each other (such as by riveting, welding, or 3D printing). This configuration facilitates the mounting of the optical elements during the manufacture of the near-eye display device 30 and also facilitates the viewing of the state of the optical elements (i.e., the viewing is possible with the front surface removed). In one possible embodiment, the in-line receiving beam 310 may be integrally formed. In some possible embodiments, the linear accommodating beam 310 may also be formed by splicing a left part and a right part, and a hollow cavity of each part is used for accommodating one optical element.

The waveguide lens 312 is disposed on the bottom surface of the in-line beam 310. In the present embodiment, a portion of the waveguide lens 312 is fixed in the cavity inside the linear receiving beam 310, and can be matched with the optical element inside the linear receiving beam 310 on one hand, and can be stably fixed with the linear receiving beam 310 on the other hand. Of course, from the bottom view shown in fig. 3d, the waveguide lens 312 is located on the bottom surface of the in-line beam 310 near the eyes of the user.

The fixing manner of the waveguide lens 312 may include: mounting through holes (not shown in the figures) are formed in the designated positions of the waveguide lenses 312, corresponding fixing structures are arranged inside the linear accommodating beams 310, and the fixing is realized after the mounting through holes of the waveguide lenses 312 are penetrated; alternatively, the fixing glue is adhered to the inside of the in-line receiving beam 310. Of course, in some embodiments, the waveguide lens 312 may be directly adhered to the bottom surface of the in-line beam 310 by gluing. In this manner, the bottom surface of the in-line receiving beam 310 is provided with a through hole or made of a transparent material at a position corresponding to the coupling-in unit (not shown in fig. 3a to 3 d) of the waveguide lens 312, so that the light beam can be incident into the waveguide lens 312.

The in-line receiving beam 310 may be made of tempered glass, polycarbonate, polymethyl methacrylate (acrylic), or thermoplastic polymer, which includes but is not limited to: acrylonitrile-butadiene-styrene plastics, plasticized styrene mixed into butadiene rubber, propylene and polybutadiene, and the like. In some embodiments, considering that the laser beam scanned out by the fiber scanner may generate a certain amount of heat, carbon nanoparticle materials may be used in the cavity of the in-line receiving beam 310, such as: graphene to facilitate heat dissipation. The adopted form comprises: the linear receiving beam 310 is added when manufacturing the linear receiving beam 310, or a coating layer is formed on the surface of the linear receiving beam 310 after molding. The specific manner adopted depends on the requirements of practical application.

With continued reference to fig. 3b, the support portion 32 further comprises: a head support cover 320 and a nose pad 322. The bottom of the head support cover 320 is fixed at a position above the middle of the rear surface of the linear accommodating beam 310, the length of the left and right sides of the head support cover 320 is greater than the length of the upper and lower sides thereof (i.e., the left and right sides are long and the upper and lower sides are short), and the orthographic projection shape thereof includes but is not limited to: oval, arc limit rectangle etc. two surfaces are crooked according to certain curvature around, certainly, the crooked degree about two surfaces around head support cover 320 is inconsistent with the crooked degree from top to bottom, and then forms free-form surface to in laminating user's forehead. The head support cover 320 fits the forehead of the user via the curved cover body, and can provide a stable supporting force for the near-eye display device 30 as a whole by means of the forehead of the user. If the head support cover 320 is not provided, the display unit 31 is entirely tilted by the pulling force of the wearing unit 33 when worn by the user, that is, the top of the display unit 31 is entirely tilted toward the head of the user, and the waveguide lens 312 is entirely tilted away from the eyes of the user, so that the user cannot normally view the waveguide lens.

In this embodiment, the head support hood 320 is movable. Specifically, referring to fig. 3c, the head support cover 320 is fixed to the rear surface of the in-line receiving beam 310 by a rotatable connecting shaft 3204. A corresponding limit structure may be provided in the rotatable connecting shaft 3204, so that the rotatable connecting shaft 3204 can rotate around the axial direction as a rotation center within a certain angle range, which is approximately 30 °. Since the head support cover 320 is movable, it can be adapted to users of different head types. Of course, to further enhance the wearing experience of the user, the rotatable connecting shaft 3204 may adopt a damping type rotating shaft.

Similarly, the nose pad 322 can also be movable through a range of angles to allow the user to adjust the support position of the nose pad 322 on the bridge of the nose.

The wearing portion 33 further includes: a cinching headband 330, a connecting clasp 332, and a stop collar 334. The tightening headband 330 is used for tightening the head of the user when the user wears the near-eye display device, and in this embodiment, the tightening headband 330 is a two-piece separate type (i.e., a left headband and a right headband), and the left headband and the right headband are respectively connected and fixed with the fixing structures 3142 of the left wing structure 314 and the right wing structure 314 through two connecting buckles 332. The connecting buckle 332 may be a pull ring structure, when connected with the tightening head band 330, a vertical through hole is formed at one end of the tightening head band 330 connected with the connecting buckle 332, the pulling crack of the connecting buckle 332 penetrates through the vertical through hole to connect with the tightening head band 330, and the other end of the connecting buckle 332 is connected and fixed with the fixing structure 3142 of the side wing structure 314.

The cinching headband 330 is provided with tightening features at a location remote from the connector links 332 (corresponding to a location behind the user's head), including, but not limited to: tightening cords, tightening buckles, snaps, hook and loop fasteners (velcro patches), etc., the case of using a velcro patch is shown in fig. 3a to 3d, so that the two headband sections are adhered and fixed to each other at the rear near the head when worn. In other embodiments, the tightening head band 330 can also be an elastic head band, i.e., the elastic head band is a whole head band, and the two ends of the elastic head band are respectively connected and fixed with the fixing structures 3142 of the left and right wing structures 314 by the connecting buckles 332, although the invention is not limited thereto. The adoption of the manner of tightening the headband can effectively reduce the overall weight of the near-eye display device.

In this embodiment, the tightening headband 330 is detachable from the linear receiving beam 310, and the user can replace the tightening headband 330 according to its size, damage, etc. in practical use.

The limiting ring 334 is sleeved on the tightening head band 330 and the optical fiber transmission line 316, and the limiting ring 334 can move and is mainly used for clamping the optical fiber transmission line 316 outside the tightening head band 330. Typically, the number of stop collars 334 is two, corresponding to the number of fiber optic transmission lines 316. In some embodiments, the number of the stop collar 334 is not limited to two, and may be more than two, depending on the requirements of the application.

It should be noted that, referring to fig. 4a, since the optical fiber transmission line 316 is a flexible transmission line, it is obvious that, if the limiting ring 334 is not provided, a portion of the optical fiber transmission line 316 beyond the side wing structure 314 may be bent downward due to the self-weight of the optical fiber transmission line 316, and long-time downward bending may affect the stability of the optical fiber transmission line 316 fixed on the side wing structure 314, and the optical fiber transmission line 316 may easily deviate from the original fixed position on the side wing structure 314. After the retaining ring 334 is disposed, the optical fiber transmission line 316 can be clamped outside the tightening head band 330, so that the clamped section of the optical fiber transmission line 316 can be kept straight, and this can be reduced or avoided.

Referring to fig. 4a and 4b, schematic structural diagrams of the optical module in the near-eye display device 30 are shown. The optical module (the optical module located on the right side of the near-eye display device 30) is illustrated, and the optical module includes the fiber scanner 400, the lens assembly 500, and the turning mirror 600 arranged in sequence. The optical elements in the optical module are arranged in sequence from one of the left or right ends of the linear accommodating beam 310 to the middle of the linear accommodating beam 310. For the structure of the fiber scanner 400, reference is made to the above description, and redundant description is omitted here.

The lens assembly 500 is composed of a plurality of lenses with different optical functions, such as collimation, spherical aberration correction, beam uniformity adjustment, etc.

The light beam passing through the mirror group 500 acts on the turning mirror 600, and the turning mirror 600 turns the light beam, so that the light beam is incident on the coupling-in unit 3120 of the waveguide mirror 312.

The optical fiber transmission line 316 may include an optical fiber for transmitting the image light beam, a signal transmission line and a power line connected to the actuating portion of the optical fiber scanner 400 for supplying power and transmitting the actuating signal. As can be seen from fig. 4a, the fiber transmission line 316 is provided with a protective layer on the surface outside the in-line beam 310, such as: soft protective layers such as rubber, braided metal wire, Thermoplastic Elastomer (TPE) braided material, and the like. The optical fiber transmission line 316 is connected to the optical component in the in-line receiving beam 310, and no protective layer is provided, the optical fiber can be directly a bare fiber (with a cladding and a fiber core) or a fiber core, and the signal transmission line can also be directly connected in a cladding or unclad manner.

It should be noted that the other end of the optical fiber transmission line 316 can be connected to a corresponding image source device, which can generate image beams, control signals, and provide power. Of course, much description is not provided herein with respect to image source devices.

In fig. 4a, the fiber scanner 400 can be packaged independently by a packaging case 70, and the lens group 500 and the turning mirror 600 can be packaged by a packaging case 72. The packaged optical element is convenient to mount and fix.

Of course, the above examples are only possible applications and should not be construed as limiting the invention.

The embodiments of the present invention are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment is mainly described as different from the other embodiments. Especially, as for the device, apparatus and medium type embodiments, since they are basically similar to the method embodiments, the description is simple, and the related points may refer to part of the description of the method embodiments, which is not repeated here.

Thus, particular embodiments of the present subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.

The expressions "first", "second", "said first" or "said second" used in various embodiments of the present disclosure may modify various components regardless of order and/or importance, but these expressions do not limit the respective components. The above description is only configured for the purpose of distinguishing elements from other elements. For example, the first user equipment and the second user equipment represent different user equipment, although both are user equipment. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

When an element (e.g., a first element) is referred to as being "operably or communicatively coupled" or "connected" (operably or communicatively) to "another element (e.g., a second element) or" connected "to another element (e.g., a second element), it is understood that the element is directly connected to the other element or the element is indirectly connected to the other element via yet another element (e.g., a third element). In contrast, it is understood that when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled" to another element (a second element), no element (e.g., a third element) is interposed therebetween.

The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, and other embodiments formed by any combination of the above-mentioned features or their equivalents may be covered without departing from the spirit of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims

1. A near-eye display device for use as AR glasses, comprising: the linear accommodating beam is used as a glasses beam and is hollow inside for accommodating the optical module;

2. The near-eye display device of claim 1, wherein the right and left optical modules are received in the in-line beam, each optical module comprising: the optical fiber scanner, the lens group and the turning mirror are parallel to the longitudinal direction of the linear containing beam and are sequentially arranged along the direction of the end side of the linear containing beam towards the middle position.

3. The near-eye display device of claim 2, wherein the optical fiber transmission line comprises an optical fiber, a signal transmission line, and a power line;

4. The near-eye display device of claim 3, wherein the optical fiber transmission line is provided with a protective layer on a surface of the optical fiber transmission line outside the in-line receiving beam.

5. The near-eye display device of claim 3, wherein the other end of the optical fiber transmission line is connected to an external image source device.

6. The near-eye display device according to any one of claims 1 to 5, wherein the beam body of the in-line receiving beam is in a rectangular pillar shape having left and right ends bent backward according to a set curvature.

7. The near-eye display device of claim 6, wherein a front surface of the in-line receiving beam is removable.

8. The near-eye display device of claim 6, wherein the head support housing is secured to the in-line receiving beam by a rotatable connection shaft.

9. The near-eye display device of claim 8, wherein the rotational manner of the rotatable connection shaft is damped rotation.

10. The near-eye display device of claim 8, wherein the head support housing has a greater length on the left and right sides than on the top and bottom sides.

11. The near-eye display device of claim 10 wherein the cinching headband is an elastic headband and both ends of the cinching headband are secured in connection with the securing members of the side wing structures by a connector buckle.

12. The near-eye display device of claim 10, wherein the cinching headband comprises left and right separate headband segments that are secured to the securing members of the side wing structures by a connector clasp, respectively.

13. The near-eye display device of claim 12, wherein the two separate sections of headband are provided with a tightening feature at a location distal from the connector link;

14. The near-eye display device of claim 11 or 12, wherein the tightening headband is provided with a position-limiting ring, and the position-limiting ring is sleeved on the tightening headband and the optical fiber transmission line and used for clamping the optical fiber transmission line outside the tightening headband.

15. The near-eye display device of claim 14, wherein the stop collar is at least two in number.

16. The near-eye display device of claim 15, wherein the stop collar is movable.