Ar glasses assembly and ar glasses

Abstract

This application discloses an AR glasses component and AR glasses. The AR glasses component includes a monochromatic light source, a first waveguide sheet, a second waveguide sheet, and a third waveguide sheet arranged in layers. The first waveguide sheet is provided with a first coupling grating, a first coupling grating, and a first color transfer film. The second waveguide sheet is provided with a second coupling grating, a second coupling grating, and a second color transfer film. The third waveguide sheet is provided with a third coupling grating and a third coupling grating. The monochromatic light source of this application achieves color transfer through the first and second color transfer films, and finally emits three colors of light through the first, second, and third coupling gratings. The superposition of the three colors of light achieves a white state display. This application uses a monochromatic light source, has a small structural volume, and emits high-brightness white light with good display effect.

Description

Technical Field

[0001] This invention relates to the field of smart wearable devices, and more particularly to an AR glasses component and AR glasses. Background Technology

[0002] Augmented reality (AR) is emerging as the next generation of interactive displays, capable of providing vivid three-dimensional (3D) visual experiences. AR glasses maintain perspective while displaying virtual images, facilitating interaction between users, digital content, and the real world. Current AR glasses primarily feature a single, complex structure with poor display quality. Summary of the Invention

[0003] The purpose of this application is to provide an AR glasses component and AR glasses that have a small footprint and good display effect.

[0004] This application discloses an AR glasses component, including a monochromatic light source; a first waveguide sheet, on which a first coupling grating, a first coupling grating, and a first color transfer film corresponding to the position of the first coupling grating are disposed, the first coupling grating receiving a light beam emitted by the monochromatic light source, and the first coupling grating emitting a light beam of a first color in a first direction; a second waveguide sheet, located on the side of the first waveguide sheet opposite to the monochromatic light source, on which a second coupling grating, a second coupling grating, and a second color transfer film corresponding to the position of the second coupling grating are disposed, the second coupling grating receiving a light beam passing through the first color transfer film, and the second coupling grating emitting a light beam of a second color in the first direction; and a third waveguide sheet, located on the side of the second waveguide sheet opposite to the first waveguide sheet, on which a third coupling grating and a third coupling grating are disposed, the third coupling grating receiving a light beam passing through the second color transfer film, and the third coupling grating emitting a light beam of a third color in the first direction; the first, second, and third color light beams are superimposed to form a white light beam.

[0005] Optionally, a first filter film is provided on one side of the second waveguide sheet.

[0006] Optionally, the projection of the first filter film in the first direction does not overlap with the projections of the second coupling grating, the second coupling grating, and the second color transfer film in the first direction.

[0007] Optionally, a second filter film is provided on one side of the third waveguide sheet.

[0008] Optionally, the projection of the second filter film in the first direction does not overlap with the projections of the third coupling grating and the third coupling grating in the first direction.

[0009] Optionally, a cover plate is provided between the monochromatic light source and the first waveguide sheet, and a third color transfer film is provided on the cover plate. The light beam from the monochromatic light source passes through the third color transfer film to reach the first coupling grating.

[0010] Optionally, the monochromatic light source is an ultraviolet light source, and the cover plate is provided with an anti-ultraviolet film.

[0011] Optionally, a third filter film is provided on one side of the first waveguide sheet.

[0012] Optionally, a collimating lens is disposed between the monochromatic light source and the first waveguide sheet.

[0013] Optionally, the projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction overlap.

[0014] Optionally, the projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction fall within the projections of the first color transfer film and the second color transfer film in the first direction.

[0015] Optionally, the projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction overlap and fall within the UV protection film.

[0016] Optionally, the projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction do not overlap with the projection of the UV protection film in the first direction.

[0017] Optionally, the first coupling-in grating and the first coupling-out grating are relief gratings; and / or

[0018] The second input grating and the second output grating are embossed gratings; and / or

[0019] The third coupling grating and the third coupling out grating are relief gratings.

[0020] This application also discloses an AR glasses, including the aforementioned AR glasses components.

[0021] Compared with related technologies, the monochromatic light source of this application achieves color conversion through a first color transfer film and a second color transfer film, and finally emits three colors of light through a first coupling grating, a second coupling grating, and a third coupling grating. The superposition of the three colors of light achieves white display. This application uses a monochromatic light source, which has a small structural volume and emits high-brightness white light, resulting in a good display effect.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of the AR glasses component of this application.

[0025] Figure 2 This is a schematic diagram of another embodiment of the AR glasses component of this application.

[0026] Figure 3 This is a schematic diagram of another embodiment of the AR glasses component of this application.

[0027] Figure 4 This is a schematic diagram of another embodiment of the AR glasses component of this application.

[0028] Figure 5 This is a schematic diagram illustrating the manufacturing process of a waveguide sheet in an embodiment of the AR glasses assembly of this application.

[0029] Figure 6 This is a schematic diagram illustrating the manufacturing process of another embodiment of the waveguide sheet in the AR glasses assembly of this application.

[0030] Figure 7 This is a schematic diagram illustrating the manufacturing process of another embodiment of the waveguide sheet in the AR glasses assembly of this application.

[0031] Explanation of reference numerals in the attached figures: Monochromatic light source, 10; First waveguide sheet, 20; First coupling grating, 21; First output grating, 22; First color transfer film, 23; Third filter film, 24; Second waveguide sheet, 30; Second coupling grating, 31; Second output grating, 32; Second color transfer film, 33; First filter film, 34; Third waveguide sheet, 40; Third coupling grating, 41; Third output grating, 42; Second filter film, 43; Collimating lens, 50; Cover plate, 60; Third color transfer film, 61; UV protection film, 62; Waveguide substrate, 100; Coupling grating, 110; Output grating, 120; Color transfer layer, 130; Encapsulation layer, 140; Protective layer, 150; Filter layer, 160. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used in this specification should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of one. "A plurality" or "several" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for ease of description only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect.

[0034] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] Among related technologies, the mainstream AR glasses are green, with a relatively thick structure, insufficient brightness, and poor display effect. This does not conform to the reading habits of the general public.

[0036] To address the aforementioned technical problems, this application provides an AR glasses component, comprising:

[0037] Monochromatic light source 10;

[0038] The first waveguide 20 is provided with a first coupling grating 21, a first coupling grating 22 and a first color transfer film 23 corresponding to the position of the first coupling grating 21. The first coupling grating 21 receives the light beam emitted by the monochromatic light source 10, and the first coupling grating 22 emits a light beam with a first color in a first direction.

[0039] The second waveguide 30 is located on the side of the first waveguide 20 away from the monochromatic light source 10. The second waveguide 30 is provided with a second coupling grating 31, a second coupling grating 32, and a second color transfer film 33 corresponding to the position of the second coupling grating 31. The second coupling grating 31 receives the light beam passing through the first color transfer film 23, and the second coupling grating 32 emits a light beam with a second color in the first direction.

[0040] The third waveguide 40 is located on the side of the second waveguide 30 away from the first waveguide 20. The third waveguide 40 is provided with a third coupling grating 41 and a third coupling grating 42. The third coupling grating 41 receives the light beam passing through the second color conversion film 33, and the third coupling grating 42 emits a light beam with a third color in the first direction.

[0041] The beams of the first, second, and third colors are superimposed to form a white beam.

[0042] To address the aforementioned technical problems, this application provides an AR glasses system that includes the AR glasses components described above.

[0043] The monochromatic light source of this application achieves color conversion through a first color transfer film 23 and a second color transfer film 33. Finally, three colors of light are emitted through a first coupling grating 22, a second coupling grating 32, and a third coupling grating 42. The superposition of the three colors of light achieves a white state display. This application uses a monochromatic light source, which has a small structural volume and emits high-brightness white light, resulting in a good display effect.

[0044] The following will provide a detailed description of various embodiments of this application that conform to the above-described inventive concept.

[0045] like Figure 1 As shown in the figure, this application discloses an AR glasses assembly. A first coupling grating 21 and a first coupling grating 22 are disposed on the side of the first waveguide 20 near the monochromatic light source 10, and a first color transfer film 23 is disposed on the side of the first waveguide 20 away from the monochromatic light source 10. A second coupling grating 31 and a second coupling grating 32 are disposed on the side of the second waveguide 30 near the first waveguide 20, and a second color transfer film 33 is disposed on the side of the second waveguide 30 away from the first waveguide 20. A third coupling grating 41 and a third coupling grating 42 are disposed on the side of the third waveguide 40 near the second waveguide 30, and a second filter film 43 is disposed on the side of the third waveguide 40 away from the second waveguide 30.

[0046] Light of the first color emitted by the monochromatic light source 10 enters the first waveguide 20 through the first coupling grating 21. Part of the light in the first waveguide 20 is emitted in a first direction through the first coupling grating 22, and part of the light is emitted in a second waveguide 30 through the first color transfer film 23, which converts part of the first-color light into second-color light. The light emitted from the first color transfer film 23 enters the second waveguide 30 through the second coupling grating 31. Part of the light in the second waveguide 30 is emitted in a first direction through the second coupling grating 32, and part of the light is emitted in a third waveguide 40 through the second color transfer film 33, which converts part of the first-color light and part of the second-color light into third-color light. The light emitted from the second color transfer film 33 enters the third waveguide 40 through the third coupling grating 41, and part of the light in the third waveguide 40 is emitted in a first direction through the third coupling grating 42. The superposition of the first-color light, the second-color light, and the third-color light achieves a black-and-white display. Optionally, a collimating lens 50 is provided between the monochromatic light source 10 and the first waveguide plate 20. The collimating lens 50 converts the light emitted by the monochromatic light source 10 into a parallel beam, which enters the first waveguide plate 20 through the first coupling grating 21.

[0047] Optionally, the first coupling grating 21 and the first coupling grating 22 are respectively disposed near the opposite ends of the first waveguide plate 20. The second coupling grating 31 and the second coupling grating 32 are respectively disposed near the opposite ends of the second waveguide plate 30. The third coupling grating 41 and the third coupling grating 42 are respectively disposed near the opposite ends of the third waveguide plate 40. The projections of the first coupling grating 21, the second coupling grating 31, and the third coupling grating 41 in the first direction overlap. Furthermore, the projection of the centers of the first coupling grating 21, the second coupling grating 31, and the third coupling grating 41 in the first direction overlaps with the centers of the monochromatic light source 10 and the collimating lens 50. The projections of the first coupling grating 21, the second coupling grating 31, and the third coupling grating 41 in the first direction fall within the projections of the first color transfer film 23 and the second color transfer film 33 in the first direction. The positions of the first coupling grating 21, the second coupling grating 31, and the third coupling grating 41, and the first coupling grating 22, the second coupling grating 32, and the third coupling grating 42, can be changed according to actual needs, as long as the light coupled into the coupling gratings can be emitted in the first direction through the coupling gratings. The arrangement of the first coupling grating 21, the second coupling grating 31, the third coupling grating 41, the first color transfer film 23, and the second color transfer film 33 can also be changed according to actual needs, as long as the light beam can propagate along the path from the first coupling grating 21 to the first color transfer film 23 to the second coupling grating 31 to the second color transfer film 33 to the third coupling grating 41.

[0048] Please also refer to Figure 2In one embodiment, the monochromatic light source 10 is a blue light source. The first color transfer film 23 is a green color transfer film, which transmits a portion of the blue light and converts a portion of the blue light into green light. The second color transfer film 33 is a red color transfer film, which transmits a portion of the blue light and green light and converts a portion of the blue light and green light into red light. The first coupling grating 22 couples out blue light in a first direction, the second coupling grating 32 couples out green light in a first direction, and the third coupling grating 42 couples out red light in a first direction. The superposition of blue light, green light, and red light achieves a black and white display.

[0049] Optionally, the first color transfer film 23 can be a red color transfer film, which transmits a portion of blue light while converting a portion of the blue light into red light. The second color transfer film 33 is a green color transfer film, which transmits a portion of both blue and red light while converting a portion of both blue and red light into green light. The first coupling grating 22 couples out blue light in a first direction, the second coupling grating 32 couples out red light in a first direction, and the third coupling grating 42 couples out green light in a first direction. The superposition of blue, red, and green light achieves a black-and-white display.

[0050] Optionally, a first filter film 34 is disposed on one side of the second waveguide 30. The first filter film 34 can be disposed on the side of the second waveguide 30 near the first waveguide 20, or on the side of the second waveguide 30 near the third waveguide 40. The projection of the first filter film 34 in the first direction does not overlap with the projections of the second coupling grating 31, the second coupling grating 32, and the second color transfer film 33 in the first direction. When the first color transfer film 23 is a green color transfer film, the first filter film 34 achieves the filtering effect by absorbing light beams other than green light beams. When the first color transfer film 23 is a red color transfer film, the first filter film 34 achieves the filtering effect by absorbing light beams other than red light beams.

[0051] Optionally, a second filter film 43 is disposed on one side of the third waveguide 40. The second filter film 43 can be disposed on the side of the third waveguide 40 close to the second waveguide 30, or on the side of the third waveguide 40 away from the second waveguide 30. The projection of the second filter film 43 in the first direction does not overlap with the projections of the third coupling grating 41 and the third coupling grating 42 in the first direction. When the second color transfer film 33 is a red color transfer film, the second filter film 43 achieves the filtering effect by absorbing light beams other than red light beams. When the second color transfer film 33 is a green color transfer film, it achieves the filtering effect by absorbing light beams other than green light beams.

[0052] Please also refer to Figure 3In one embodiment, a cover plate 60 is disposed between the monochromatic light source 10 and the first waveguide sheet 20. A third color transfer film 61 is disposed on one side of the cover plate 60, and the light beam from the monochromatic light source 10 passes through the third color transfer film 61 to reach the first coupling grating 21. Optionally, the projections of the first coupling grating 21, the second coupling grating 31, and the third coupling grating 41 in the first direction fall within the projection of the third color transfer film 61 in the first direction. The monochromatic light source 10 can be a blue light source or an ultraviolet light source.

[0053] When the monochromatic light source 10 is an ultraviolet light source, the first color transfer film 23 is one of a blue color transfer film, a green color transfer film, or a red color transfer film. The second color transfer film 33 is one of the remaining two of a blue color transfer film, a green color transfer film, or a red color transfer film. The third color transfer film 61 is the last remaining one of a blue color transfer film, a green color transfer film, or a red color transfer film.

[0054] When the monochromatic light source 10 is a blue light source, the third color transfer film 61 is either a green color transfer film or a red color transfer film. The first color transfer film 23 is either a blue color transfer film, a green color transfer film, or a red color transfer film, and is different from the third color transfer film 61. The second color transfer film 33 is either a blue color transfer film, a green color transfer film, or a red color transfer film, and is different from the first color transfer film 23 and the third color transfer film 61.

[0055] Please also refer to Figure 4 Optionally, a third filter film 24 is disposed on one side of the first waveguide 20. The third filter film 24 can be disposed on the side of the first waveguide 20 near the monochromatic light source 10, or on the side of the first waveguide 20 near the second waveguide 30. The projection of the third filter film 24 in the first direction does not overlap with the projections of the first coupling grating 21, the first coupling grating 22, and the first color transfer film 23 in the first direction. When the monochromatic light source 10 is an ultraviolet light source, when the third color transfer film 61 is a blue color transfer film, the third filter film 24 achieves the filtering effect by absorbing light beams other than blue light beams. When the third color transfer film 61 is a green color transfer film, the third filter film 24 achieves the filtering effect by absorbing light beams other than green light beams. When the third color transfer film 61 is a red color transfer film, the third filter film 24 achieves the filtering effect by absorbing light beams other than red light beams. When the monochromatic light source 10 is a blue light source, and the third color transfer film 61 is a green color transfer film, the third filter film 24 achieves its filtering function by absorbing light beams other than the green light beam. When the third color transfer film 61 is a red color transfer film, the third filter film 24 achieves its filtering function by absorbing light beams other than the red light beam.

[0056] Optionally, a first filter film 34 is disposed on one side of the second waveguide 30. The first filter film 34 can be disposed on the side of the second waveguide 30 near the first waveguide 20, or on the side of the second waveguide 30 near the third waveguide 40. The projection of the first filter film 34 in the first direction does not overlap with the projections of the second coupling grating 31, the second coupling grating 32, and the second color transfer film 33 in the first direction. When the first color transfer film 23 is a green color transfer film, the first filter film 34 achieves the filtering effect by absorbing light beams other than green light beams. When the first color transfer film 23 is a red color transfer film, the first filter film 34 achieves the filtering effect by absorbing light beams other than red light beams. When the first color transfer film 23 is a blue color transfer film, the first filter film 34 achieves the filtering effect by absorbing light beams other than blue light beams.

[0057] Optionally, a second filter film 43 is disposed on one side of the third waveguide 40. The second filter film 43 can be disposed on the side of the third waveguide 40 close to the second waveguide 30, or on the side of the third waveguide 40 away from the second waveguide 30. The projection of the second filter film 43 in the first direction does not overlap with the projections of the third coupling grating 41 and the third coupling grating 42 in the first direction. When the second color transfer film 33 is a red color transfer film, the second filter film 43 achieves the filtering effect by absorbing light beams other than red light beams. When the second color transfer film 33 is a green color transfer film, it achieves the filtering effect by absorbing light beams other than green light beams. When the second color transfer film 33 is a blue color transfer film, it achieves the filtering effect by absorbing light beams other than blue light beams.

[0058] Optionally, when the monochromatic light source 10 is an ultraviolet light source, an ultraviolet-proof film 62 is provided on one side of the cover plate 60. The ultraviolet-proof film 62 can be provided on the side of the cover plate 60 near the monochromatic light source 10, or on the side of the cover plate 60 near the first waveguide sheet 20. The projections of the first coupling grating 22, the second coupling grating 32, and the third coupling grating 42 in the first direction overlap and fall within the projection of the ultraviolet-proof film 62 in the first direction. The projections of the first coupling grating 21, the second coupling grating 31, and the third coupling grating 41 in the first direction do not overlap with the projection of the ultraviolet-proof film 62 in the first direction. The projections of the first color transfer film 23, the second color transfer film 33, and the third color transfer film 61 in the first direction do not overlap with the projection of the ultraviolet-proof film 62 in the first direction.

[0059] Optionally, the first coupling-in grating 21, the first coupling-out grating 22, the second coupling-in grating 31, the second coupling-out grating 32, the third coupling-in grating 41, and the third coupling-out grating 42 can be relief gratings or holographic gratings. Relief gratings have a simple fabrication process but a wider wavelength bandwidth; that is, a grating used to couple a green beam may also respond to a blue beam, and a grating used to couple a red beam may also respond to a green beam. Holographic gratings have a narrower wavelength bandwidth; that is, a grating used to couple a green beam will only respond to a green beam, a grating used to couple a red beam will only respond to a red beam, and a grating used to couple a blue beam will only respond to a blue beam. Optionally, when a filter film is provided on the waveguide sheet, the coupling-in grating and the coupling-out grating are relief gratings. When no filter film is provided on the waveguide sheet, the coupling-in grating and the coupling-out grating are holographic gratings.

[0060] like Figure 5 As shown. This application also discloses a method for fabricating a waveguide sheet. In one embodiment, the method for fabricating a waveguide sheet includes first setting a waveguide substrate 100, on which coupling-in regions and coupling-out regions are provided, located near opposite ends of the waveguide substrate 100. The waveguide substrate 100 is a transparent substrate. Then, a color transfer layer 130 is spin-coated on the back side of the waveguide substrate 100 and patterned at the position corresponding to the coupling-in region. Next, an encapsulation layer 140 is deposited on the back side of the waveguide substrate 100 to protect the color transfer layer 130. Then, the waveguide substrate 100 is flipped to the front side, and a grating is imprinted on the front side of the waveguide substrate 100. The grating includes a coupling-in grating 110 and a coupling-out grating 120. The coupling-in grating 110 is imprinted onto the coupling-in region, and the coupling-out grating 120 is imprinted onto the coupling-out region. The coupling-in region and the coupling-out region are located near opposite ends of the waveguide substrate 100. A blue waveguide is obtained when the color conversion layer 130, the coupling grating 110, and the coupling grating 120 correspond to the wavelength of a blue beam. A red waveguide is obtained when the color conversion layer 130, the coupling grating 110, and the coupling grating 120 correspond to the wavelength of a red beam. A green waveguide is obtained when the color conversion layer 130, the coupling grating 110, and the coupling grating 120 correspond to the wavelength of a green beam.

[0061] like Figure 6As shown, in another embodiment, the method for fabricating the waveguide sheet includes first setting a waveguide substrate 100, which is a transparent substrate. Then, a grating is imprinted on the front side of the waveguide substrate 100. The grating includes an insertion grating 110 and an exit grating 120. The insertion grating 110 is imprinted onto the insertion region, and the exit grating 120 is imprinted onto the exit region. The insertion and exit regions are located near opposite ends of the waveguide substrate 100, respectively. Next, a protective layer 150 is spin-coated on the front side of the waveguide substrate 100, completely covering the insertion grating 110 and the exit grating 120. Then, the waveguide substrate 100 is flipped to the back side, and a color transfer layer 130 is spin-coated on the back side of the waveguide substrate 100 and patterned at the corresponding position of the insertion region. Then, an encapsulation layer 140 is deposited on the back side of the waveguide substrate 100 to protect the color transfer layer 130. Finally, the waveguide substrate 100 is flipped to the front side, and the protective layer 150 is removed. A blue waveguide is obtained when the color conversion layer 130, the coupling grating 110, and the coupling grating 120 correspond to the wavelength of a blue beam. A red waveguide is obtained when the color conversion layer 130, the coupling grating 110, and the coupling grating 120 correspond to the wavelength of a red beam. A green waveguide is obtained when the color conversion layer 130, the coupling grating 110, and the coupling grating 120 correspond to the wavelength of a green beam.

[0062] like Figure 7 As shown, in another embodiment, the method for fabricating a waveguide sheet includes first setting a waveguide substrate 100, on which coupling-in regions and coupling-out regions are provided, located near opposite ends of the waveguide substrate 100. The waveguide substrate 100 is a transparent substrate. Next, a color transfer layer 130 is spin-coated onto the back side of the waveguide substrate 100 and patterned at the corresponding position of the coupling-in region. Then, a filter layer 160 is spin-coated onto the back side of the waveguide substrate 100 and patterned at the corresponding position of the coupling-in region, wherein the projection of the filter layer 160 in a first direction does not overlap with the projections of the color transfer layer 130, the coupling-in region, and the coupling-out region in the first direction. Then, an encapsulation layer 140 is deposited on the back side of the waveguide substrate 100 to protect the color transfer layer 130 and the filter layer 160. Finally, the waveguide substrate 100 is flipped to the front side, and a grating is imprinted on the front side of the waveguide substrate 100, the grating including a coupling-in grating 110 and a coupling-out grating 120. A coupling grating 110 is imprinted onto the coupling area, and a coupling grating 120 is imprinted onto the coupling area. A blue waveguide is obtained when the color transfer layer 130, coupling grating 110, and coupling grating 120 correspond to the wavelength of a blue beam. A red waveguide is obtained when the color transfer layer 130, coupling grating 110, and coupling grating 120 correspond to the wavelength of a red beam. A green waveguide is obtained when the color transfer layer 130, coupling grating 110, and coupling grating 120 correspond to the wavelength of a green beam.

[0063] This application also discloses an AR glasses, including the aforementioned AR glasses components.

[0064] Other embodiments of this specification will readily occur to those skilled in the art upon consideration of the specification and practice of the invention claimed herein. This specification is intended to cover any variations, uses, or adaptations that follow the general principles of this specification and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this specification are indicated by the following claims.

[0065] It should be understood that this specification is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this specification is limited only by the appended claims.

[0066] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. An AR glasses component, characterized in that, include: Monochromatic light source; A first waveguide sheet is provided with a first coupling grating, a first output grating, and a first color conversion film corresponding to the position of the first coupling grating. The first coupling grating receives a light beam emitted from the monochromatic light source, and the first output grating emits a light beam of a first color in a first direction. The first color conversion film is disposed on the side of the first waveguide sheet away from the monochromatic light source and is used to transmit part of the light beam from the monochromatic light source and convert part of the light beam into a light beam of the first color. A second waveguide sheet is located on the side of the first waveguide sheet opposite to the monochromatic light source. The second waveguide sheet is provided with a second coupling grating, a second coupling grating, and a second color conversion film corresponding to the position of the second coupling grating. The second coupling grating receives the light beam passing through the first color conversion film, and the second coupling grating emits a light beam of the second color in the first direction. The second color conversion film is disposed on the side of the second waveguide sheet opposite to the first waveguide sheet, and is used to transmit part of the light beam passing through the first color conversion film and convert part of the light beam into a light beam of the second color. The third waveguide is located on the side of the second waveguide away from the first waveguide. The third waveguide is provided with a third coupling grating and a third coupling grating. The third coupling grating receives the light beam passing through the second color conversion film, and the third coupling grating emits a light beam of the third color in the first direction. The beams of the first color, the second color, and the third color are superimposed to form a white beam; wherein, The projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction overlap, and the projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction fall within the projections of the first color transfer film and the second color transfer film in the first direction; A first filter film is provided on one side of the second waveguide sheet, and the projection of the first filter film in the first direction does not overlap with the projections of the second coupling grating, the second coupling grating and the second color transfer film in the first direction; A second filter film is provided on one side of the third waveguide sheet, and the projection of the second filter film in the first direction does not overlap with the projections of the third coupling grating and the third coupling grating in the first direction.

2. The AR glasses assembly according to claim 1, characterized in that, A cover plate is provided between the monochromatic light source and the first waveguide sheet, and a third color transfer film is provided on the cover plate. The light beam from the monochromatic light source passes through the third color transfer film and reaches the first coupling grating.

3. The AR glasses assembly according to claim 2, characterized in that, The monochromatic light source is an ultraviolet light source, and the cover plate is provided with an anti-ultraviolet film.

4. The AR glasses assembly according to claim 3, characterized in that, A third filter film is provided on one side of the first waveguide sheet.

5. The AR glasses assembly according to any one of claims 1-4, characterized in that, A collimating lens is disposed between the monochromatic light source and the first waveguide plate.

6. The AR glasses assembly according to claim 3, characterized in that, The projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction overlap and fall within the UV protection film.

7. The AR glasses assembly according to claim 3, characterized in that, The projections of the first coupling grating, the second coupling grating, and the third coupling grating in the first direction do not overlap with the projection of the UV protection film in the first direction.

8. The AR glasses assembly according to claim 1, characterized in that, The first input grating and the first output grating are embossed gratings; and / or The second input grating and the second output grating are embossed gratings; and / or The third coupling grating and the third coupling out grating are relief gratings.

9. An AR glasses, characterized in that, Includes the AR glasses assembly as described in any one of claims 1-8.

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