Holographic optical element recording system and method, near-eye display system and method

Abstract

The present application provides a holographic optical element recording system and method, as well as a near-eye display system and method. The holographic optical element recording system comprises: a first lens, a glass substrate, a holographic optical element, a diffuser, and a second lens, arranged in sequence; signal light passing through the first lens is focused onto the holographic optical element bonded to the glass substrate; reference light passes through the second lens to produce parallel reference light, which passes through the diffuser and is incident on the holographic optical element. This application enables the creation of a near-eye display system using a transmissive organic light-emitting display and a holographic optical element, without the use of optical waveguide technology or coupling structures, thereby achieving near-eye display.

Description

Technical Field

[0001] The present application relates to the field of optical imaging, and specifically to a holographic optical element recording system and method thereof, and a near-eye display system and method thereof. Background Art

[0002] Augmented Reality (AR) technology is a technology that cleverly integrates virtual information with the real world. It widely uses a variety of technical means such as multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction and sensing. It simulates computer-generated virtual information such as text, images, three-dimensional models, music and video, and applies it to the real world to supplement the real information in the real world and achieve "enhancement" of the real world.

[0003] Head-mounted displays for augmented reality utilize near-eye display technology, hence the name "near-eye display device." When worn, a user can observe the surrounding environment while simultaneously viewing the virtual image displayed on the near-eye display, thereby achieving augmented reality. Augmented reality technology can overlay virtual images on the user's perceived real world, creating a more realistic experience and a stronger sense of immersion.

[0004] In the prior art, technologies for implementing near-eye display devices mainly include: Birdbath, prism, free-form surface, and optical waveguide technology. Among them, Birdbath, prism, and free-form surface technologies all face the conflict between increasing the field of view angle and reducing the size of the near-eye display device. To solve this problem, those skilled in the art have proposed optical waveguide technology, but existing optical waveguide technology generally requires the cooperation of a coupling structure. The coupling structure is used to couple the light beam emitted by the micro-projection optical engine into the waveguide plate so that the light beam meets the total reflection propagation conditions in the waveguide plate, and is an important component in optical waveguide technology. However, to achieve a larger field of view angle, the volume of the coupling structure will also increase. Therefore, the coupling structure will increase the volume and weight of the near-eye display device, causing inconvenience to the user. Therefore, it is necessary to develop a near-eye display device that can achieve near-eye display without optical waveguide technology and without a coupling structure. Summary of the Invention

[0005] In response to the problems in the prior art, the present application provides a near-eye display device that can achieve near-eye display by utilizing a transmissive organic light-emitting display (Transparent OLED Display, T-OLED) and a holographic optical element (Holographic Optical Element, HOE) without using optical waveguide technology and coupling structure.

[0006] To solve the above technical problems, this application provides the following technical solutions:

[0007] In a first aspect, the present application provides a holographic optical element recording system, comprising: a first lens, a glass substrate, a holographic optical element, a diffuser, and a second lens arranged in sequence;

[0008] The signal light passes through the first lens and is focused onto the holographic optical element attached to the glass substrate; the reference light passes through the second lens to obtain parallel reference light, and the parallel light passes through the diffuser and is incident on the holographic optical element.

[0009] Furthermore, the signal light is composed of signal lights at multiple angles, and the signal lights at multiple angles are focused onto the holographic optical element after passing through the first lens respectively.

[0010] Furthermore, the first lens is a lens array composed of a plurality of lenses, and each lens of the lens array splits the light beam of the signal light into a plurality of fine light beams, so as to allow the signal light to be incident on the holographic optical element at multiple angles.

[0011] Furthermore, the holographic optical element recording system further includes: a third lens, configured to collimate the signal light into parallel signal light, and the parallel signal light is focused onto the holographic optical element after passing through the first lens.

[0012] In a second aspect, the present application provides a near-eye display system, comprising: a T-OLED display screen and a holographic optical element with interference fringes recorded by the holographic optical element recording system, wherein the holographic optical element is bonded to the T-OLED display screen.

[0013] In a third aspect, the present application provides a holographic optical element recording method, comprising:

[0014] The first lens focuses the signal light onto the holographic optical element attached to the glass substrate;

[0015] The second lens collimates the reference light and then makes it incident on the diffuser;

[0016] The diffuser diffuses the collimated reference light and then makes it incident on the holographic optical element, so that the signal light and the reference light emitted from the holographic optical element interfere with each other to form interference fringes.

[0017] Furthermore, the signal light is composed of signal lights at multiple angles, and the first lens focuses the signal light onto the holographic optical element attached to the glass substrate, including:

[0018] The first lens focuses signal lights at multiple angles onto the holographic optical element attached to the glass substrate.

[0019] Furthermore, the first lens is a lens array composed of a plurality of lenses, and the first lens focuses the signal light onto the holographic optical element attached to the glass substrate, including:

[0020] Each lens of the lens array splits the signal light beam into a plurality of fine light beams, and makes the signal light incident on the holographic optical element at a plurality of angles.

[0021] Furthermore, the recording method of the holographic optical element further includes: a third lens disposed in front of the first lens collimates the signal light into parallel signal light and then injects the parallel signal light onto the first lens.

[0022] In a fourth aspect, the present application provides a near-eye display method, comprising:

[0023] The virtual image light emitted by the T-OLED display screen enters the holographic optical element with interference fringes;

[0024] The holographic optical element reflects the virtual image light and focuses it to the human eye through the T-OLED display screen;

[0025] The holographic optical element and the T-OLED display screen transmit ambient light in sequence, so that the ambient light enters the human eye.

[0026] In response to the problems in the prior art, the present application provides a holographic optical element recording system, a near-eye display system, a holographic optical element recording method, and a near-eye display method. These methods can utilize a transmissive organic light-emitting device (Transparent OLED Display, T-OLED) and a holographic optical element (Holographic Optical Element, HOE) to manufacture a near-eye display device without using optical waveguide technology and a coupling structure, thereby achieving near-eye display with the advantages of a large field of view and a small size. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is one of the schematic diagrams of the holographic optical element recording system in the embodiment of the present application;

[0028] Figure 2 This is the second schematic diagram of the holographic optical element recording system in an embodiment of the present application;

[0029] Figure 3 This is the third schematic diagram of the holographic optical element recording system in the embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of a near-eye display system in an embodiment of the present application;

[0031] Figure 5This is one of the schematic diagrams of the near-eye display method in an embodiment of the present application;

[0032] Figure 6 This is the second schematic diagram of the near-eye display method in an embodiment of the present application;

[0033] Figure 7 This is the third schematic diagram of the near-eye display method in the embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] In order to realize near-eye display by using transmissive organic light-emitting devices and holographic optical elements to make a near-eye display device without using optical waveguide technology and coupling structure, it is first necessary to record the holographic optical element and form interference fringes on the holographic optical element.

[0036] To this end, the present application provides a holographic optical element recording system, see Figure 1 The holographic optical element recording system includes: a lens 1, a glass substrate 2, a holographic optical element 3, a diffuser 4 and a lens 5 arranged in sequence; the signal light 6 passes through the lens 1 and is focused onto the holographic optical element 3 attached to the glass substrate 2; the reference light 7 passes through the lens 5 to obtain parallel light 14, and the parallel light 14 passes through the diffuser 4 and is incident on the holographic optical element 3.

[0037] It is understood that the recording method of the holographic optical element 3 is to cause interference between the signal light 6 and the reference light 7, and record the resulting interference fringes on the holographic optical element 3. To this end, according to the incident directions of the signal light and the reference light, the holographic optical element recording system provided in this application is provided with a lens 1, a glass substrate 2, a holographic optical element 3, a diffuser 4, and a lens 5, in order from left to right or from right to left. The lens 1 focuses the signal light 6 to form a spherical wave, which passes through the glass substrate 2 and is incident on the holographic optical element 3 bonded to the glass substrate 2. At the same time, the lens 5 collimates the reference light 7 into parallel light, which passes through the transmissive diffuser 4 and is incident on the holographic optical element 3. At this time, the signal light 6 and the reference light 7 interfere with each other on the holographic optical element 3, forming interference fringes.

[0038] It can be seen from the above description that the holographic optical element recording system provided in this application is capable of completing holographic optical element recording.

[0039] See also Figure 2Preferably, in the holographic optical element recording system provided in the present application, the signal light 6 is composed of light at multiple angles, and the signal lights 6 at multiple angles are focused onto the holographic optical element 3 after passing through the lens 1 respectively.

[0040] It is understood that, generally speaking, the signal light 6 can be incident on the lens 1 from a single horizontal angle; however, in a preferred embodiment, the signal light 6 can be incident on the lens 1 from multiple angles. While maintaining the same arrangement of the lens 1, the glass substrate 2, the holographic optical element 3, the diffuser 4, and the lens 5, the signal light 6 incident from multiple angles interferes with the reference light 7 on the holographic optical element 3 to form multiple groups of interference fringes.

[0041] Compared to signal light 6 incident from a single horizontal angle, signal light 6 incident from multiple angles can expand the range of eye movement when a person uses a near-eye display system. This is because when recording on the holographic optical element 3, if the signal light 6 is parallel light at a single angle, then the signal light 6 will only form a single focal point after being focused by the lens 1. Only when the human pupil 13 is located at this focal point can the virtual image be seen.

[0042] Therefore, preferably, when recording the holographic optical element 3, parallel light emitted from multiple angles is sequentially incident on the lens 1 as the signal light 6, thereby forming multiple focal points. Specifically, parallel light from a first angle is incident on the lens 1, focused by the lens 1, and incident on the holographic optical element 3. Simultaneously, the lens 5 collimates the reference light 7 into parallel light, which then passes through the transmissive diffuser 4 and enters the holographic optical element 3. At this point, the signal light 6 and the reference light 7 interfere with each other on the holographic optical element 3, forming interference fringes, thus completing a single recording of the interference fringes. Similarly, parallel light from other angles is sequentially incident on the lens 1, focused by the lens 1, and incident on the holographic optical element 3. Simultaneously, the lens 5 collimates the reference light 7 into parallel light, which then passes through the transmissive diffuser 4 and enters the holographic optical element 3. At this point, the signal light 6 and the reference light 7 interfere with each other on the holographic optical element 3, forming interference fringes, thus completing multiple recordings of the interference fringes.

[0043] It should be noted that this application does not limit the angle of incidence of the signal light 6 or the number of signal lights 6. Those skilled in the art will appreciate that greater angles of incidence of the signal light 6 and greater numbers of signal lights 6 will result in greater numbers of focal points and a larger eye movement range. Therefore, in practical applications, appropriate selections can be made.

[0044] It can be seen from the above description that the holographic optical element recording system provided in this application is capable of completing holographic optical element recording.

[0045] See also Figure 3Preferably, in the holographic optical element recording system provided in the present application, the lens 1 is a lens array 8 composed of a plurality of lenses, and each lens of the lens array 8 divides the light beam of the signal light 6 into a plurality of fine light beams 15, so as to make the signal light 6 incident on the holographic optical element 3 through multiple angles.

[0046] It will be appreciated that in this embodiment, the holographic optical element recording system is sequentially arranged from left to right or from right to left, including a lens array 8, a glass substrate 2, a holographic optical element 3, a diffuser 4, and a lens 5. The signal light 6 is a focused spherical wave. When this spherical wave is incident on the lens array 8, each small lens in the lens array 8 splits the entire wide beam into many small beams 15. Specifically, when the focused wide beam signal light 6, i.e., the spherical wave, is incident on small lenses at different positions, parallel light at different angles is formed and incident on the holographic optical element 3. Simultaneously, the lens 5 collimates the reference light 7 into parallel light, which then passes through the transmissive diffuser 4 and is incident on the holographic optical element 3. At this point, the signal light 6 and the reference light 7 interfere with each other on the holographic optical element 3, forming interference fringes, which are then recorded.

[0047] It should be noted that in this embodiment, if the signal light 6 is parallel light from a single angle, a lens can be provided before the lens array 8 to focus the parallel light and form a spherical wave. The lens can be located between the lens 1 and the lens array 8.

[0048] It can be seen from the above description that the holographic optical element recording system provided in this application is capable of completing the recording of the holographic optical element 3 .

[0049] See also Figure 1 、 Figure 2 and Figure 3 The holographic optical element recording system provided in the present application further includes: a lens located in front of the lens 1, for collimating the signal light 6 into parallel light, and the parallel light is focused onto the holographic optical element 3 after passing through the lens 1.

[0050] See also Figure 4 The present application provides a near-eye display system, comprising: a T-OLED display screen 10 and a Figures 1 to 3 The holographic optical element 3 with interference fringes recorded by the holographic optical element recording system is attached to the T-OLED display screen 10.

[0051] It is understood that the T-OLED display 10 is a transmissive organic light-emitting display. When a person uses the near-eye display system provided herein, the holographic optical element 3, which has already recorded interference fringes, reflects virtual image light 12 emitted by the T-OLED display 10. This virtual image light 12 is then reflected and focused through the T-OLED display to the human eye. The so-called virtual image light 12 refers to the virtual image displayed by the T-OLED display 10.

[0052] At the same time, the holographic optical element 3 transmits ambient light 11 from the real world, allowing the ambient light 11 to enter the T-OLED display 10. Due to its light-transmitting properties, the T-OLED display 10 allows the ambient light 11 to pass through it and enter the human eye, allowing the human eye to see the real image, that is, the real world, ultimately achieving an augmented reality effect.

[0053] It's important to note that the T-OLED display 10 transmits light only in one direction. That is, if the back of the T-OLED display 10 faces the human eye and the front faces the real world, then the T-OLED display 10 only emits virtual image light 12 forward, that is, toward the holographic optical element 3, and does not emit light toward the back. Therefore, the human eye cannot directly receive the virtual image light 12 emitted by the T-OLED display 10 without reflection from the holographic optical element 3.

[0054] From the above description, it can be seen that the near-eye display system provided by the present application can enhance reality, allowing users to see real images and virtual images at the same time without the use of waveguides and coupling structures.

[0055] above Figure 1 、 Figure 2 and Figure 3 The directions of the light rays shown in the figure are not limited to those depicted in the figure.

[0056] See also Figure 5 The present application provides a holographic optical element recording method, which is applied to the holographic optical element recording system provided in the present application, comprising:

[0057] The lens 1 focuses the signal light 6 onto the holographic optical element 3 attached to the glass substrate 2;

[0058] The lens 5 collimates the reference light 7 and then makes it incident on the diffuser 4;

[0059] The diffuser 4 diffuses the collimated reference light 7 and then makes it incident on the holographic optical element 3, so that the signal light 6 and the reference light 7 emitted by the holographic optical element 3 interfere with each other and form interference fringes.

[0060] It is understood that the specific process of recording the holographic optical element 3 using this method can be found in the description of the holographic optical element recording system in this specification. It should be noted that after recording the holographic optical element 3 using the holographic optical element recording method, the virtual image light 12 emitted by the light source in the T-OLED display 10 is incident on the holographic optical element 3 and is diffracted by the interference fringes on the holographic optical element 3. The direction of the diffracted light is consistent with the propagation direction of the signal light 6 in the holographic optical element recording method provided in this application. Therefore, after the virtual image light 12 emitted by the T-OLED display 10 is incident on the holographic optical element 3, it reflects focused light. When the human eye pupil 13 falls at the focal point of the focused light, the focused light passes through the pupil 13 and is incident on the retina, allowing the human eye to see the virtual image on the T-OLED display 10. Meanwhile, the ambient light 11 in the real world passes directly through the holographic optical element 3 and the T-OLED display 10 and enters the human eye. At this time, the image viewed by the human eye is a superposition of the virtual image and the real image, achieving the purpose of augmented reality.

[0061] It should be noted that the holographic optical element 3 is a reflective holographic optical element. When displaying images to the human eye, the holographic optical element 3 and the T-OLED display 10 do not modulate the ambient light 11. That is, real-world light directly passes through the holographic optical element and enters the human eye. Virtual image light 12 emitted by the T-OLED display 10, however, is reflected by the holographic optical element 3 and then passes through the T-OLED display 10 to form an image on the human retina. Alternatively, it is reflected by the holographic optical element 3 and then passes through the T-OLED display 10 to form a virtual image, which is located at a finite distance.

[0062] It can be seen from the above description that the holographic optical element recording method provided in the present application can complete the holographic optical element recording.

[0063] See also Figure 6 Preferably, the signal light 6 is composed of signal lights 6 at multiple angles, and the lens 1 focuses the signal light 6 onto the holographic optical element 3 attached to the glass substrate 2. The holographic optical element recording method provided in the present application includes:

[0064] The lens 1 focuses the signal light 6 at multiple angles onto the holographic optical element 3 attached to the glass substrate 2 .

[0065] It is understood that the specific process of using this method to realize the recording of the holographic optical element 3 can be referred to the description of the holographic optical element recording system in this specification. It should be noted that in this embodiment, after the virtual image light 12 emitted by the T-OLED display screen 10 is incident on the holographic optical element 3, it will also reflect focused light. However, unlike the previous embodiments, the focused light has multiple focal points. When the pupil 13 of the human eye moves to a certain focal position, for example Figure 6 At any of the three locations shown, the virtual image displayed by the T-OLED display 10 is imaged onto the retina. Simultaneously, ambient light 11 from the real world passes through the holographic optical element 3 and the T-OLED display 10 and directly enters the human eye. This allows the human eye to simultaneously see both the virtual image and the real world from multiple locations, effectively increasing the range of eye movement.

[0066] It can be seen from the above description that the holographic optical element recording method provided in this application can complete the recording of the holographic optical element 3 .

[0067] See also Figure 7 In the holographic optical element recording method provided in the present application, the lens 1 is a lens array 8 composed of a plurality of lenses, and the lens 1 focuses the signal light 6 onto the holographic optical element 3 attached to the glass substrate 2, including:

[0068] Each lens of the lens array 8 splits the light beam of the signal light 6 into a plurality of light beams 15 , and causes the signal light 6 to be incident on the holographic optical element 3 at a plurality of angles.

[0069] It is understandable that the specific process of using this method to record the holographic optical element 3 can be found in the description of the holographic optical element recording system in this specification. It should be noted that in this embodiment, when the virtual image light 12 emitted by the T-OLED display 10 is incident on the holographic optical element 3, it will be reflected by the holographic optical element 3 and form parallel light at multiple angles. These parallel light at multiple angles will have overlapping areas that intersect with each other, and these overlapping areas that intersect with each other are the eye movement range. When the pupil 13 of the human eye is within this range, the complete virtual image will be seen; and the ambient light 11 of the real world will pass through the holographic optical element 3 and the T-OLED display 10 directly into the human eye, completing augmented reality.

[0070] It should be noted that to create a larger eye movement range, the T-OLED display screen 10 can be divided into adjacent areas of approximately equal size. The size of the divided areas can be determined based on the size of the eye movement range and the required imaging quality. The virtual image light 12 emitted by pixels in the same area of ​​the T-OLED display screen 10 is parallel light traveling in the same direction, while the virtual image light 12 emitted by pixels in different areas of the T-OLED display screen 10 is parallel light traveling in different directions. The number of divided areas can correspond to the number of lenses in the lens array 8.

[0071] In practice, given that the virtual image light 12 emitted from each pixel of the T-OLED display 10 may have varying angles of incidence when entering the holographic optical element 3, the pixels within the same region of the T-OLED display 10, after passing through the lens array 8, are not parallel light at a single angle, but rather are parallel light within a certain range of angles. When the size of the T-OLED display 10 region is appropriately configured, the human eye can perceive a continuous and uniform virtual image within a certain range of eye movement.

[0072] It can be seen from the above description that the holographic optical element recording method provided in this application can complete the recording of the holographic optical element 3 .

[0073] See also Figure 5 、 Figure 6 and Figure 7 The present application provides a holographic optical element recording method, which also includes: a third lens arranged in front of the lens 1 collimates the signal light 6 into parallel light and then incidents it on the lens 1.

[0074] See also Figure 5 、 Figure 6 and Figure 7 The present application provides a near-eye display method, which is applied to the near-eye display system provided in the present application, including:

[0075] The virtual image light 12 emitted by the T-OLED display screen 10 enters the holographic optical element 3 with interference fringes;

[0076] The holographic optical element 3 reflects the virtual image light 12 and focuses it to the human eye through the T-OLED display screen 10;

[0077] The holographic optical element 3 and the T-OLED display screen 10 transmit the ambient light 11 in sequence, so that the ambient light 11 enters the human eye.

[0078] From the above description, it can be seen that the near-eye display method provided by the present application can enhance reality, allowing users to see real images and virtual images at the same time without the use of waveguides and coupling structures.

[0079] In summary, the holographic optical element recording system, near-eye display system, holographic optical element recording method, and near-eye display method provided in the present application can utilize a transmissive organic light-emitting display and a holographic optical element 3 to form a near-eye display system without using optical waveguide technology and a coupling structure, thereby realizing near-eye display with the advantages of a large field of view and a small size.

[0080] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the device implementation method embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0081] The foregoing description of this specification describes specific embodiments. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0082] Although the embodiments of this specification provide the method operation steps as described in the embodiments or flow charts, more or fewer operation steps may be included based on conventional or non-creative means. The order of steps listed in the embodiments is only one way of executing the order of many steps and does not represent the only execution order. The term "comprise", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, product or equipment including a series of elements includes not only those elements, but also includes other elements that are not clearly listed, or also includes elements inherent to such process, method, product or equipment. In the absence of more restrictions, it is not excluded that there are other identical or equivalent elements in the process, method, product or equipment including the elements.

[0083] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between the various embodiments can be referenced across them. Each embodiment focuses on the differences from the other embodiments. In particular, since the system embodiments are generally similar to the method embodiments, their description is relatively simple. For relevant parts, reference can be made to the description of the method embodiments. Throughout this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the embodiments in this specification. In this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate the different embodiments or examples, and features of different embodiments or examples, described in this specification, without conflict.

[0084] The above description is merely an example of the embodiments of this specification and is not intended to limit the embodiments of this specification. For those skilled in the art, various modifications and variations of the embodiments of this specification are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of this specification shall be included within the scope of the claims of the embodiments of this specification.

Claims

1. A holographic optical element recording system, characterized in that: include: A first lens, a glass substrate, a holographic optical element, a diffuser and a second lens are sequentially arranged; The signal light passes through the first lens and is focused onto the holographic optical element attached to the glass substrate; the reference light passes through the second lens to obtain parallel reference light, and the parallel reference light passes through the diffuser and is incident on the holographic optical element; The parallel reference light is incident on the holographic optical element through a transmissive diffuser, so that the signal light and the reference light interfere with each other on the holographic optical element to form interference fringes, completing a single recording of the interference fringes; the parallel light from each angle is sequentially incident on the first lens to complete multiple recordings of the interference fringes; the greater the incident angles of the signal light, the greater the amount of signal light, the greater the number of focal points formed, and the larger the eye movement range.

2. The holographic optical element recording system according to claim 1, wherein: The signal light is composed of signal lights at multiple angles, and the signal lights at multiple angles are focused onto the holographic optical element after passing through the first lens respectively.

3. The holographic optical element recording system according to claim 1, wherein: The first lens is a lens array composed of a plurality of lenses, and each lens of the lens array splits the light beam of the signal light into a plurality of fine light beams, so that the signal light is incident on the holographic optical element at a plurality of angles.

4. The holographic optical element recording system according to any one of claims 1 to 3, characterized in that: Also includes: The third lens is used to collimate the signal light into parallel signal light, and the parallel signal light is focused onto the holographic optical element after passing through the first lens.

5. A near-eye display system, characterized in that: include: A T-OLED display screen and a holographic optical element with interference fringes recorded by the holographic optical element recording system according to claim 1, wherein the holographic optical element is attached to the T-OLED display screen.

6. A holographic optical element recording method, applied to the holographic optical element recording system according to claim 1, characterized in that: include: The first lens focuses the signal light onto the holographic optical element attached to the glass substrate; The second lens collimates the reference light and then makes it incident on the diffuser; The diffuser diffuses the collimated reference light and then makes it incident on the holographic optical element, so that the signal light and the reference light emitted from the holographic optical element interfere with each other to form interference fringes.

7. The holographic optical element recording method according to claim 6, wherein: The signal light is composed of signal lights at multiple angles, and the first lens focuses the signal light onto the holographic optical element attached to the glass substrate, including: The first lens focuses signal lights at multiple angles onto the holographic optical element attached to the glass substrate.

8. The holographic optical element recording method according to claim 6, wherein: The first lens is a lens array composed of a plurality of lenses, and the first lens focuses the signal light onto the holographic optical element attached to the glass substrate, including: Each lens of the lens array splits the signal light beam into a plurality of fine light beams, and makes the signal light incident on the holographic optical element at a plurality of angles.

9. The holographic optical element recording method according to any one of claims 6 to 8, characterized in that: Also includes: The third lens disposed in front of the first lens collimates the signal light into parallel signal light and then the parallel signal light is incident on the first lens.

10. A near-eye display method, applied to the near-eye display system according to claim 5, characterized in that: include: The virtual image light emitted by the T-OLED display screen enters the holographic optical element with interference fringes; The holographic optical element reflects the virtual image light and focuses it to the human eye through the T-OLED display screen; The holographic optical element and the T-OLED display screen transmit ambient light in sequence, so that the ambient light enters the human eye.

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