Light emitting device, three-dimensional imaging method of a light emitting device, and vehicle

Abstract

The embodiment of the application provides a light emitting device, a three-dimensional imaging method of the light emitting device and a vehicle, and relates to the technical field of vehicle manufacturing, and comprises: a micro-nano optical imaging layer film piece is arranged on the light emitting side of a micro-nano optical imaging layer light source, the micro-nano optical imaging layer film piece is provided with a micro-nano optical imaging layer, and the micro-nano optical imaging layer is used for diffracting and modulating light rays emitted by the micro-nano optical imaging layer light source, so that the light emitting device of the micro-nano optical imaging layer outputs a differentiated three-dimensional pattern with parallax information at different observation angles. The light emitting device of the embodiment of the application can diffract and modulate the light rays emitted by the light source in the micro-nano optical imaging layer, and then can make the light emitting device output a differentiated three-dimensional pattern with parallax information at different observation angles, so as to improve the use experience of the user, the film piece is relatively thin, the thickness of the whole light emitting device can be ensured, the lightness of the vehicle can be ensured, the use effect is better, and the application range is wider.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a light-emitting device, a three-dimensional imaging method for the light-emitting device, and a vehicle. Background Technology

[0002] With the development of the national economy and the continuous improvement of living standards, vehicles are becoming increasingly important in daily life and travel. Aesthetics and lightweight design are key considerations during vehicle manufacturing. Existing vehicles feature illuminated icons to enhance their appearance at night, and these icons can incorporate two mirrors to reflect light multiple times, creating a three-dimensional effect. However, this method requires a gap between the two mirrors; too small a gap results in poor image quality, while too large a gap increases the icon's thickness, impacting vehicle lightweighting. Therefore, there is room for improvement. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a light-emitting device that can display differentiated three-dimensional patterns with parallax information to improve the user experience, while ensuring the overall thickness of the light-emitting device, thereby ensuring the lightweight of the vehicle.

[0004] According to an embodiment of the present invention, a light-emitting device includes a light source and a diaphragm. The diaphragm is disposed on the light-emitting side of the light source. The diaphragm is provided with a micro-nano optical imaging layer. The micro-nano optical imaging layer is used to diffract and modulate the light emitted by the light source so that the light-emitting device outputs differentiated three-dimensional patterns with parallax information at different viewing angles.

[0005] According to an embodiment of the present invention, the light-emitting device is provided with a light source and a diaphragm. The diaphragm is disposed on the light-emitting side of the light source and has a micro-nano optical imaging layer. This allows the light emitted by the light source to be diffracted and modulated in the micro-nano optical imaging layer, thereby enabling the light-emitting device to output differentiated three-dimensional patterns with parallax information at different viewing angles, thus improving the user experience. Furthermore, the thinness of the diaphragm ensures the overall thickness of the light-emitting device, thereby ensuring vehicle lightweighting, better performance, and wider applicability.

[0006] According to some embodiments of the light-emitting device of the present invention, the film further includes a metal layer located on the side of the micro-nano optical imaging layer away from the light source. The metal layer is configured to transmit imaging when the light source is lit, and when the light source is turned off, external light is adapted to be reflected in the metal layer to form a metallic mirror appearance.

[0007] According to some embodiments of the present invention, the light-emitting device further includes a substrate layer and a filter layer, the filter layer being located between the micro-nano optical imaging layer and the substrate layer, and the metal layer, the micro-nano optical imaging layer and the filter layer being sequentially composited on the substrate layer.

[0008] According to some embodiments of the light-emitting device of the present invention, the thickness of the film is set to be less than or equal to 1 mm, and the thickness of the metal layer is set to be 10 nm-50 nm; The thickness of the substrate layer is greater than the thickness of the metal layer, the micro-nano optical imaging layer, and the filter layer, respectively.

[0009] According to some embodiments of the present invention, the light-emitting device further includes: a housing and a bottom housing assembly, the bottom housing assembly being located inside the body sheet metal, the housing being located outside the body sheet metal, the light source being installed inside the housing, the diaphragm being disposed on the side of the housing away from the body sheet metal, and the housing and the bottom housing assembly being detachably connected to both sides of the body sheet metal via connectors.

[0010] According to some embodiments of the present invention, the housing has at least one mounting portion on the side away from the diaphragm, the bottom shell assembly has at least one mounting mating portion, the at least one mounting portion and the at least one mounting mating portion are provided in a one-to-one correspondence, the body sheet metal has a through hole, and at least a portion of the mounting portion is adapted to pass through the through hole to be connected to the mounting mating portion via the connector.

[0011] According to some embodiments of the present invention, the housing is further provided with a circuit board, the circuit board is installed inside the housing and located on the side of the light source away from the diaphragm, the light source is electrically connected to the circuit board, and the circuit board is provided with a wire harness, the wire harness being adapted to pass through the body sheet metal to extend into the bottom shell assembly; The bottom shell assembly is provided with a drain pipe, which connects the lower part of the bottom shell assembly to the outside.

[0012] According to some embodiments of the present invention, the light-emitting device wherein the micro-nano optical imaging layer is constructed as a micro-nano diffraction optical structure, and the micro-nano diffraction optical structure is configured as one of the following: surface relief waveguide, volume holographic waveguide, columnar grating, DOE, and metasurface.

[0013] The present invention also proposes a three-dimensional stereoscopic imaging method for a light-emitting device.

[0014] A three-dimensional stereoscopic imaging method for a light-emitting device according to an embodiment of the present invention, applied to any of the above-mentioned light-emitting devices, the three-dimensional stereoscopic imaging method comprising: The light emitted from the light source is diffracted and modulated using the micro-nano optical imaging layer of the diaphragm; The light, after being diffracted and modulated, is emitted outward to output differentiated three-dimensional patterns with parallax information from different viewing angles.

[0015] The present invention also proposes a vehicle.

[0016] The vehicle according to an embodiment of the present invention includes the light-emitting device described in any of the preceding claims.

[0017] The three-dimensional imaging method of the vehicle and the light-emitting device described above have the same advantages over the prior art, which will not be repeated here.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a partial cross-sectional view of a light-emitting device according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a partial cross-sectional view of a diaphragm according to an embodiment of the present invention; Figure 3 An explosion of a light-emitting device according to an embodiment of the present invention. Figure 1 ; Figure 4 This is a partial cross-sectional view of a light-emitting device according to an embodiment of the present invention. Figure 2 ; Figure 5 An explosion of a light-emitting device according to an embodiment of the present invention. Figure 2 ; Figure 6 This is a flow chart of a method for manufacturing a membrane according to an embodiment of the present invention. Figure 1 ; Figure 7 This is a flow chart of a method for manufacturing a membrane according to an embodiment of the present invention. Figure 2 ; Figure 8 This is a flowchart of a three-dimensional stereoscopic imaging method using a light-emitting device according to an embodiment of the present invention.

[0020] Figure label: Light-emitting device 100, body sheet metal 101, through hole 102, Housing 11, mounting part 111, light source 12, diaphragm 13, micro / nano optical imaging layer 131, metal layer 132, substrate layer 133, filter layer 134, circuit board 14, wire harness 141. Bottom shell assembly 2, mounting mating part 21, drain pipe 22, connector 3. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0025] Existing vehicle logo lighting fixtures mostly employ reflective imaging structures using mirrors and semi-transparent mirrors with multiple light path reflections. These structures can only achieve a pseudo-3D effect created by stacking planar patterns, lacking true three-dimensional depth information and failing to present differentiated 3D images depending on the viewing angle. Furthermore, traditional optical imaging structures are generally over 10mm thick, making them bulky and unable to meet the lightweight assembly requirements of automobiles. They also cannot allow for customized control of the light propagation angle and path, resulting in highly homogenized lighting effects. This application completely abandons the traditional reflective imaging principle, achieving true dynamic 3D stereoscopic imaging based on micro-nano diffraction optics, overcoming the shortcomings of existing technologies from the underlying structure and imaging mechanism.

[0026] The following is for reference. Figures 1-5 The light-emitting device 100 according to an embodiment of the present invention can display differentiated three-dimensional patterns with parallax information to improve the user experience and ensure the overall thickness of the light-emitting device 100, thereby ensuring the lightweight of the vehicle. Moreover, the three-dimensional pattern generated by the present invention completely replicates the real depth of the original three-dimensional model, rather than the false three-dimensional appearance of the infinitely extended planar pattern of the prior art, and has a higher visual fidelity.

[0027] like Figures 1-5 As shown, a light-emitting device 100 according to an embodiment of the present invention includes: a light source 12 and a diaphragm 13.

[0028] The diaphragm 13 is disposed on the light-emitting side of the light source 12. The diaphragm 13 is provided with a micro-nano optical imaging layer 131. The micro-nano optical imaging layer 131 is used to diffract and modulate the light emitted by the light source 12 so that the light-emitting device 100 outputs differentiated three-dimensional patterns with parallax information at different viewing angles.

[0029] The light-emitting device 100 can be installed on the outer surface of the vehicle body. The light-emitting device 100 can be constructed as a car logo or the like, so that the car logo can be lit up when the vehicle is driving at night, thereby improving the vehicle's aesthetics and serving as a warning when the vehicle is driving at night, thus improving nighttime driving safety.

[0030] Specifically, the light-emitting device 100 is provided with a light source 12 and a diaphragm 13. The light source 12 can be an LED lamp or the like. The diaphragm 13 is installed on the light-emitting side of the light source 12, so that the light source 12 can emit light toward the diaphragm 13, and the light can pass through the diaphragm 13 in sequence. The diaphragm 13 is provided with a micro-nano optical imaging layer 131, so that the light emitted by the light source 12 can illuminate the micro-nano optical imaging layer 131.

[0031] Furthermore, the microstructure morphology, period, and thickness of the micro-nano optical imaging layer 131 are fixed structural parameters that can be preset and customized. By differentiating the parameters of the micro-nano optical imaging layer 131, the diffraction propagation path, outgoing divergence angle, and outgoing direction of the incident light can be precisely controlled, so as to achieve directional and controllable output of the optical path and adapt to different light source parameters, different vehicle lamp structures, and different vehicle models' assembly and light emission requirements.

[0032] In this way, the micro-nano optical imaging layer 131 can control the propagation path, divergence angle, and propagation direction of light, thereby causing the light emitted by the light source 12 to be diffracted and modulated in the micro-nano optical imaging layer 131, and thus outputting a multi-view differentiated stereoscopic light field. Relying on the binocular parallax depth information inherent in the light field, a real dynamic three-dimensional stereoscopic imaging is achieved. This stereoscopic image carries binocular parallax depth information and can present differentiated stereoscopic patterns at different viewing angles, forming a dynamically changing real three-dimensional stereoscopic imaging effect, so that users can observe images from different angles. This allows for the addition of dynamic effects to the image to improve aesthetics and enhance the user experience. Furthermore, the diaphragm 13 itself can form an image, and the diaphragm 13 is relatively thin, which can ensure the overall thickness of the light-emitting device 100 and improve the lightweight design of the vehicle.

[0033] According to an embodiment of the present invention, a light-emitting device 100 is provided with a light source 12 and a diaphragm 13. The diaphragm 13 is disposed on the light-emitting side of the light source 12, and the diaphragm 13 is provided with a micro-nano optical imaging layer 131, so that the light emitted by the light source 12 can be diffracted and modulated in the micro-nano optical imaging layer 131, thereby outputting a multi-view differentiated stereoscopic light field. Relying on the binocular parallax depth information inherent in the light field, a real dynamic three-dimensional stereoscopic imaging is realized, which is completely different from the static pseudo stereoscopic imaging scheme of the existing planar stacking. This can improve the lighting effect of the light-emitting device 100, thereby improving the user experience. In addition, the diaphragm 13 is relatively thin, which can ensure the overall thickness of the light-emitting device 100, thereby ensuring the vehicle's lightweight design, better performance, and wider applicability.

[0034] In some embodiments, the diaphragm 13 further includes a metal layer 132 located on the side of the micro-nano optical imaging layer 131 away from the light source 12. The metal layer 132 is configured to transmit imaging when the light source 12 is lit, and when the light source 12 is turned off, external light is adapted to be reflected in the metal layer 132 to form a metallic mirror appearance.

[0035] Specifically, the diaphragm 13 is disposed on the outside of the housing 11, and as... Figure 2As shown, the diaphragm 13 is also provided with a metal layer 132. The metal layer 132 is disposed on the side of the micro-nano optical imaging layer 131 away from the light source 12. That is, when the light source 12 is lit, the light emitted can first illuminate the micro-nano optical imaging layer 131 and then the metal layer 132. One side of the metal layer 132 is configured to be light-transmitting, and the other side is configured to be light-reflecting. The light-transmitting side of the metal layer 132 is disposed close to the light source 12, and the light-reflecting side of the metal layer 132 is disposed away from the light source 12. This allows the light emitted by the light source 12 to be diffracted and modulated in the micro-nano optical imaging layer 131 and then emitted outward through the metal layer 132, so that the user can observe a stereoscopic image outside the vehicle.

[0036] Furthermore, when the light source 12 is turned off, external light can be reflected by the metal layer 132. The metal layer 132 is set to a metallic color so that the light-emitting device 100 can present a metallic mirror appearance, thereby improving the aesthetics of the light-emitting device 100 and enhancing the user experience.

[0037] In some embodiments, the diaphragm 13 further includes a substrate layer 133 and a filter layer 134, the filter layer 134 being located between the micro-nano optical imaging layer 131 and the substrate layer 133, and the metal layer 132, the micro-nano optical imaging layer 131 and the filter layer 134 being sequentially composited on the substrate layer 133.

[0038] Specifically, such as Figure 2 As shown, the diaphragm 13 is also provided with a substrate layer 133 and a filter layer 134. The filter layer 134 is located between the micro-nano optical imaging layer 131 and the substrate layer 133. The substrate layer 133 can be connected to the other structures of the light-emitting device 100 by means of bonding or other methods. The substrate layer 133 is made of a light-transmitting material, and the light emitted by the light source 12 can pass through the substrate layer 133 to illuminate the filter layer 134. The light can be filtered in the filter layer 134. The light source 12 can be set as a narrowband LED lamp. The filter layer 134 can further filter the light emitted by the narrowband LED lamp so that the red light half-width of the light illuminating the micro-nano optical imaging layer 131 is between 10nm and 20nm, thereby ensuring the clarity of the stereoscopic image formed by the light-emitting device 100, improving the imaging effect, and thus improving the user experience.

[0039] Furthermore, the metal layer 132, the micro-nano optical imaging layer 131, and the filter layer 134 are sequentially composited on the substrate layer 133, that is, the substrate layer 133, the filter layer 134, the micro-nano optical imaging layer 131, and the metal layer 132 are sequentially distributed along the direction away from the light source 12, so that the light emitted by the light source 12 can pass through the substrate layer 133, the filter layer 134, the micro-nano optical imaging layer 131, and the metal layer 132 in sequence before being emitted outward. Moreover, the composite of the filter layer 134, the micro-nano optical imaging layer 131, and the metal layer 132 by the substrate layer 133 can ensure the effect of the filter layer 134, the micro-nano optical imaging layer 131, and the metal layer 132 on the light, so as to ensure the reliability of the membrane 13.

[0040] In actual setup, both the filter layer 134 and the micro-nano optical imaging layer 131 can be set to multiple layers, which can filter light multiple times while improving the depth of the image, making the setup flexible.

[0041] In some embodiments, the thickness of the diaphragm 13 is set to be less than or equal to 1 mm, that is, the total thickness of the diaphragm 13 can be set to 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, or 1 mm. In this embodiment, preferably, the thickness of the diaphragm 13 is set to 0.3 mm-0.8 mm. Setting the thickness of the diaphragm 13 to meet the 0.3 mm-0.8 mm requirement can avoid the diaphragm 13 being too thin, which would weaken the light processing effect of the micro-nano optical imaging layer 131 and the filter layer 134, resulting in poor imaging effect. It can also avoid the diaphragm 13 being too thick, which would affect the lightweight design. Thus, the lightweight design can be guaranteed while ensuring imaging effect. Compared with the optical structure thickness of more than 10 mm in traditional light-emitting lamps, the overall thickness of the diaphragm 13 in this application is significantly reduced, greatly reducing the overall thickness of the light-emitting device 100 and effectively meeting the lightweight design requirements of the whole vehicle.

[0042] Furthermore, the thickness of the metal layer 132 is set to 10nm-50nm, that is, the thickness of the metal layer 132 can be set to 10nm, 15nm, 20nm, 25nm, 30nm, 35nm, 40nm, 45nm, 50nm, or any value within 10nm-50nm. Setting the thickness of the metal layer 132 to 10nm-50nm can avoid the light transmittance being reduced due to a large thickness of the metal layer 132, which would result in dim light from the light-emitting device 100. It can also avoid the light reflection being insufficient due to a small thickness of the metal layer 132, which would result in a weakened metallic luster. Thus, while ensuring transmittance, the metallic luster can be maintained, thereby improving the user experience.

[0043] The thickness of the substrate layer 133 is greater than the thickness of the metal layer 132, the micro-nano optical imaging layer 131, and the filter layer 134. The filter layer 134, the micro-nano optical imaging layer 131, and the metal layer 132 are sequentially composited onto the substrate layer 133 along the direction away from the light source 12. The thickness of the substrate layer 133 is set to be greater than the thickness of the metal layer 132, the micro-nano optical imaging layer 131, and the filter layer 134, respectively. That is, the thickness of the substrate layer 133 is set to be relatively thick, while the thickness of the metal layer 132, the micro-nano optical imaging layer 131, and the filter layer 134 is set to be relatively thin. Setting the thickness of the substrate layer 133 to be relatively thick can ensure the structural strength of the substrate layer 133, thereby ensuring the reliability of the filter layer 134, the micro-nano optical imaging layer 131 and the metal layer 132 being installed on the other structures of the light-emitting device 100 through the substrate layer 133, so as to ensure the reliability of the use of the diaphragm 13. In addition, the substrate layer 133 can be configured to adhere to the other structures of the light-emitting device 100. The substrate layer 133 can be made of transparent plastic or the like, with a certain degree of elasticity, to ensure the reliability of the adhesion between the substrate layer 133 and the other structures of the light-emitting device 100.

[0044] In some embodiments, the light-emitting device 100 further includes: a housing 11 and a bottom housing assembly 2, the bottom housing assembly 2 being located inside the body sheet metal 101, the housing 11 being located outside the body sheet metal 101, the light source 12 being installed inside the housing 11, and the diaphragm 13 being disposed on the side of the housing 11 away from the body sheet metal 101. The housing 11 and the bottom housing assembly 2 are detachably connected to both sides of the body sheet metal 101 via a connector 3.

[0045] Specifically, the light-emitting device 100 is provided with a housing 11. The components of the light-emitting device 100 can be installed inside the housing 11. The housing 11 can be provided with a main housing and a base. The base can be connected to the outside of the body sheet metal 101. The main housing can be integrally formed with the base. The main housing can also be connected to the base by means of adhesive or snap-fit, so that the base and the main housing can jointly define the installation space. The light source 12 can be installed inside the housing 11, that is, the light source 12 can be installed in the installation space. The housing 11 can be made of a light-transmitting material. The light source 12 can emit light towards the side away from the body sheet metal 101, so that the light-emitting device 100 can be lit. The diaphragm 13 is installed on the side of the housing 11 away from the body sheet metal 101. The diaphragm 13 is installed outside the housing 11 and located on the side of the housing 11 away from the body sheet metal 101, so that the light source 12 can emit light towards the diaphragm 13, so that the light can pass through the housing 11 and the diaphragm 13 in sequence.

[0046] And such as Figure 3As shown, the light-emitting device 100 is also provided with a bottom shell assembly 2, which is located on the inner side of the vehicle body sheet 101. That is, the bottom shell assembly 2 and the housing 11 are located on the two sides of the vehicle body sheet 101, so that the user can only observe the diaphragm 13 and the housing 11 from the outside of the vehicle. The housing 11 is detachably connected to the bottom shell assembly 2, that is, the housing 11 can be connected to the bottom shell assembly 2 by means of snap-fit ​​or connector. In this embodiment, the housing 11 and the bottom shell assembly 2 can be detachably connected by a connector 3. The connector 3 can be set as a bolt, etc., which is simple in structure, convenient to install, and low in setting cost. This makes the housing 11 detachable from the vehicle body sheet 101, so as to facilitate the maintenance and replacement of the housing 11, diaphragm 13 and light source 12, etc., improve the convenience of maintenance and save maintenance costs.

[0047] In actual settings, such as Figure 5 As shown, the housing 11 can also be directly mounted to the body sheet metal 101 via the connector 3 to improve weight reduction.

[0048] In some embodiments, at least one mounting portion 111 is formed on the side of the housing 11 away from the diaphragm 13, and at least one mounting mating portion 21 is formed on the bottom housing assembly 2. The at least one mounting portion 111 and the at least one mounting mating portion 21 are provided in a one-to-one correspondence. The body sheet metal 101 is formed with a through hole 102. At least a portion of the mounting portion 111 is adapted to pass through the through hole 102 to be connected to the mounting mating portion 21 via a connector 3.

[0049] Specifically, the housing 11 can be detachably mounted to the body sheet metal 101 via the connecting piece 3, and as follows: Figure 3 As shown, the housing 11 is provided with a mounting portion 111, which is located on the side of the housing 11 away from the diaphragm 13, i.e., the mounting portion 111 is located close to the body sheet metal 101. The bottom shell assembly 2 is provided with a mounting mating portion 21, and the body sheet metal 101 is provided with a through hole 102. At least a portion of the mounting portion 111 can extend to the inside of the body sheet metal 101 through the through hole 102, so that the connecting member 3 can be threaded through the mounting mating portion 21 and the mounting portion 111 on one side for threaded connection with the mounting portion 111. Thus, the housing 11 can be installed on the body sheet metal 101, making installation convenient. Furthermore, at least one mounting part 111 is provided, that is, the mounting part 111 can be one, two or three, etc., and at least one mounting mating part 21 is also provided, that is, the mounting mating part 21 can be one, two or three, etc. At least one mounting part 111 and at least one mounting mating part 21 are provided in a one-to-one correspondence, and the through holes 102 are also provided in a corresponding number, so that each mounting part 111 can extend to the other side of the body sheet metal 101 through the corresponding through hole 102 to connect with the corresponding mounting mating part 21, thereby enabling multiple parts of the housing 11 to be connected to the bottom shell assembly 2, ensuring the installation reliability of the housing 11.

[0050] In some embodiments, the housing 11 is further provided with a circuit board 14, which is installed in the housing 11 and located on the side of the light source 12 away from the diaphragm 13. The light source 12 is electrically connected to the circuit board 14, and the circuit board 14 is provided with a wire harness 141, which is adapted to pass through the body sheet metal 101 to extend into the bottom shell assembly 2.

[0051] Specifically, such as Figure 1 As shown, the housing 11 is also provided with a circuit board 14. The circuit board 14 can also be installed in the installation space of the housing 11. The circuit board 14 is located on the side of the light source 12 away from the diaphragm 13. That is, the circuit board 14 is located on the side of the light source 12 close to the body sheet metal 101, and the diaphragm 13 is located on the side of the light source 12 away from the body sheet metal 101. This can prevent the circuit board 14 from blocking the light source 12 and ensure the reliability of the light source 12. The light source 12 and the circuit board 14 are electrically connected. The circuit board 14 is also provided with a wire harness 141. The body sheet metal 101 is provided with mounting holes. The wire harness 141 can pass through the mounting holes into the bottom housing assembly 2 and can be electrically connected to the vehicle wiring so that the light source 12 can be powered on to emit light.

[0052] The bottom shell assembly 2 is provided with a drain pipe 22, which connects the lower part of the bottom shell assembly 2 to the outside.

[0053] Furthermore, such as Figure 1 As shown, the bottom shell assembly 2 has a cavity inside that is open to the front. The mounting part 21 can be installed inside the cavity and extends toward the body sheet metal 101. The bottom shell assembly 2 is also provided with a drain pipe 22, which is installed at the bottom of the bottom shell assembly 2. The drain pipe 22 can connect the cavity to the outside, so that in the event of rain or other conditions, the liquid flowing into the bottom shell assembly 2 can be discharged through the drain pipe 22 to avoid affecting the connection of the wiring harness 141 of the circuit board 14, thereby ensuring the reliability of the light source 12 lighting.

[0054] In some embodiments, the micro-nano optical imaging layer 131 is constructed as a micro-nano diffractive optical structure, and the micro-nano diffractive optical structure is configured as one of the following: surface relief waveguide, volume holographic waveguide, columnar grating, DOE, and metasurface.

[0055] Specifically, the micro-nano optical imaging layer 131 can be configured as a micro-nano diffractive optical structure, which can be at least one of surface relief waveguide, volume holographic waveguide, columnar grating, DOE or metasurface. The configuration is flexible. This application uses a micro-nano diffractive optical structure to diffract and modulate light to form an image, which is different from the pseudo-stereoscopic imaging mechanism of existing technologies that rely on multiple reflections and folds of mirrors. This can improve the lighting effect of the light-emitting device 100 and improve the user experience.

[0056] Among them, surface relief waveguides are fabricated with nanoscale relief grating structures (similar to tiny concave and convex textures) on the surface of waveguide sheets, using the diffraction effect of light to guide the propagation of light within the lens. Volume holographic waveguides are formed inside photosensitive materials by interfering with dual laser beams to create alternating bright and dark holographic fringes, and the refractive index of the fringe region is modulated, thereby enabling diffraction and guidance of light. Columnar gratings are arrays composed of periodically arranged micro-columnar lenses, which can control the direction of light by refraction through each columnar lens. DOE, also known as diffractive optical element, refers to all optical elements that use surface micro- and nano-structures to modulate the phase of light waves, thereby changing the propagation and distribution of light. Metasurfaces are artificial two-dimensional materials composed of subwavelength-scale "atoms" (i.e., nanopillars and other unit structures) arranged in a specific manner, which can flexibly and efficiently control the amplitude, phase, and polarization of light.

[0057] In summary, the core differences between this invention and existing technologies can be summarized in four points: 1. Different imaging principles: Existing technologies rely on multiple reflections from mirrors for imaging, while this invention uses a micro-nano diffraction optical structure to diffract and modulate light for imaging; 2. Different imaging effects: Existing technologies can only form pseudo-3D structures with stacked planar patterns, while this invention outputs a true 3D light field carrying binocular parallax depth information; 3. Different optical path control capabilities: Existing technologies cannot customize the light emission angle and propagation path, while this invention achieves controllable optical paths by customizing the morphology, period, and thickness parameters of the micro-nano optical imaging layer 131; 4. Different visual dynamic effects: Existing technologies do not provide differentiated images that change with viewing angle, while this invention relies on the parallax light field to present different stereoscopic facets at different viewing angles, forming dynamic and realistic 3D imaging.

[0058] Meanwhile, the diaphragm 13 is designed with high flexibility and compatibility, enabling it to work with a variety of lighting fixtures, including but not limited to ambient lighting, projection lights, and other types of taillights. Furthermore, the use of this diaphragm 13 is not limited by the color and power of the vehicle's lights, meaning it can be widely applied to various vehicle models and lighting configurations, matching both traditional halogen lamps, modern LED lamps, and future lighting technologies, making it highly versatile.

[0059] In this embodiment, the diaphragm 13 is bonded to the outside of the housing 11 to achieve seamless integration with the vehicle lighting system. Furthermore, to further enhance the performance and durability of the diaphragm 13, it can be directly processed on the surface of the housing 11 using techniques such as physical vapor deposition (PVD) and embossing. This improves the bonding strength between the diaphragm 13 and the housing 11, and also allows for flexible application of the diaphragm 13 in various vehicle lighting designs, increasing installation flexibility.

[0060] The present invention also proposes a three-dimensional stereoscopic imaging method for a light-emitting device 100.

[0061] The three-dimensional stereoscopic imaging method of the light-emitting device 100 according to the embodiments of the present invention is applied to the light-emitting device 100 of any of the above claims, such as... Figure 8 As shown, the three-dimensional imaging method includes: S100, The light emitted from the light source 12 is diffracted and modulated using the micro-nano optical imaging layer 131 of the diaphragm 13; S200, the light after diffraction modulation is emitted outward so that differentiated three-dimensional patterns with parallax information are output from different viewing angles.

[0062] Specifically, the light-emitting device 100 is provided with a diaphragm 13, and a micro-nano optical imaging layer 131 is provided inside the diaphragm 13. The microstructure morphology, period, and thickness of the micro-nano optical imaging layer 131 are fixed structural parameters that can be preset and customized. By differentiating the parameters of the micro-nano optical imaging layer 131, the diffraction propagation path, outgoing divergence angle, and outgoing direction of the incident light can be precisely controlled, so as to achieve directional and controllable output of the light path and adapt to the assembly light-emitting requirements of different light source parameters, different vehicle lamp structures, and different vehicle models.

[0063] Thus, when the light emitted by the light source 12 passes through the micro-nano optical imaging layer 131, the micro-nano optical imaging layer 131 can control the propagation path, divergence angle, and propagation direction of the light, thereby causing the light emitted by the light source 12 to be diffracted and modulated in the micro-nano optical imaging layer 131, and thus outputting a multi-view differentiated stereoscopic light field. Relying on the binocular parallax depth information inherent in the light field, a real dynamic three-dimensional stereoscopic imaging is achieved. This stereoscopic image carries binocular parallax depth information and can present differentiated stereoscopic patterns at different viewing angles, forming a dynamically changing real three-dimensional stereoscopic imaging effect, so that users can observe images from different angles, thereby adding dynamic effects to the image to improve aesthetics and enhance the user experience.

[0064] According to the three-dimensional stereoscopic imaging method of the light-emitting device 100 of the present invention, the light emitted by the light source 12 can be diffracted and modulated in the micro-nano optical imaging layer 131, thereby outputting a multi-view differentiated stereoscopic light field. Based on the binocular parallax depth information of the light field itself, a real dynamic three-dimensional stereoscopic imaging is achieved, which is completely different from the static pseudo stereoscopic imaging scheme of the existing planar stacking. This can improve the lighting effect of the light-emitting device 100, thereby improving the user experience. In addition, the film 13 is relatively thin, which can ensure the overall thickness of the light-emitting device 100, thereby ensuring the lightweight of the vehicle, better performance, and wider applicability.

[0065] The present invention also proposes a method for manufacturing the diaphragm 13.

[0066] According to an embodiment of the present invention, a method for manufacturing a diaphragm 13 is used to prepare a diaphragm 13 for a light-emitting device 100 as described above, such as... Figure 6 As shown, the manufacturing method includes: S1. Obtain the three-dimensional model data of the target three-dimensional image and obtain the processing information of the micro-nano optical imaging layer 131 through optical calculation.

[0067] S2. Based on the processing information, a filter layer 134 and a micro-nano optical imaging layer 131 are sequentially formed on the substrate layer 133.

[0068] S3. A metal layer 132 is formed on the side of the filter layer 134 away from the substrate layer 133 by physical vapor deposition.

[0069] Specifically, a diaphragm 13 is provided on the side of the housing 11 away from the body sheet metal 101. A micro-nano optical imaging layer 131 can be disposed within the diaphragm 13. When light from the light source 12 shines on the micro-nano optical imaging layer 131, the micro-nano optical imaging layer 131 can adjust the propagation path, divergence angle, and propagation direction of the light to form a stereoscopic image. Combined with the binocular parallax characteristics of the human eye, users can observe stereoscopic images with different effects from different angles. When manufacturing the diaphragm 13, three-dimensional model data of the desired image can be obtained through drawing software, and then the processing information of the micro-nano optical imaging layer 131 can be obtained through optical calculations. Users can use this processing information to sequentially form a filter layer 134 and a micro-nano optical imaging layer 131 on the base layer 133 of the diaphragm 13. The micro-nano optical imaging layer 131 can be formed using nanoimprint lithography (NIL), electron beam lithography (EBL), or laser direct writing. LDW and other structures are formed directly above the basal layer 133.

[0070] Furthermore, a metal layer 132 is provided on the side of the diaphragm 13 away from the substrate layer 133. The metal layer 132 can be deposited on the side of the micro-nano optical imaging layer 131 away from the substrate layer 133 by physical vapor deposition (PVD). The material of the metal layer 132 can be aluminum (Al), silver (Ag), chromium (Cr), or their alloys, so that when the light source 12 is turned off, the light-emitting device 100 can emit a metallic luster to improve aesthetics.

[0071] According to the manufacturing method of the diaphragm 13 of the present invention, the light emitted by the light source 12 can be diffracted and modulated in the micro-nano optical imaging layer 131, thereby outputting a multi-view differentiated stereoscopic light field. Based on the binocular parallax depth information inherent in the light field, a real dynamic three-dimensional stereoscopic imaging is achieved, which is completely different from the static pseudo stereoscopic imaging scheme of the prior art that uses planar stacking. This can improve the lighting effect of the light-emitting device 100, thereby improving the user experience. Moreover, the diaphragm 13 is relatively thin, which can ensure the overall thickness of the light-emitting device 100, thereby ensuring the vehicle's lightweight design, better performance, and wider applicability.

[0072] In some embodiments, such as Figure 7 As shown, the process of acquiring the 3D model data of the target 3D image and obtaining the processing information of the micro / nano optical imaging layer 131 through optical calculations includes: S11. Select multiple sampling points based on the 3D model data.

[0073] S12, Set optical parameters and reference plane parameters.

[0074] S13. Calculate the complex amplitude distribution of multiple sampling points on the reference plane.

[0075] S14. Superimpose the complex amplitudes of all sampling points to obtain the total object light field.

[0076] S15. Introduce reference light, generate an interference pattern, and normalize it.

[0077] Specifically, multiple sampling points are selected based on the 3D model data. The 3D model can take the form of, but is not limited to, point cloud models, triangular mesh models, or voxel models. The setup method is flexible, and the 3D model contains multiple sampling points (Pix). i ,y i ,z i , where x i y i For horizontal and vertical coordinates, z i Using depth coordinates, non-point cloud models, such as mesh models, are spatially discretized, and sampling points are extracted to preserve the geometric features of the original model. The sampling interval is between 0.01 and 0.5 mm. Optical parameters and reference plane parameters are set, the center wavelength λ of light source 12 is set to a range of 610 nm to 650 nm, the holographic plane resolution is set to M×N, and the reference light is set as a plane wave whose propagation direction is determined by the direction cosines cosα and cosβ. The reference plane is defined as being located in the z=0 plane and is used to record the stereo pattern.

[0078] Furthermore, the complex amplitude distribution of multiple sampling points on the reference plane is calculated, that is, for each object point ix... i ,y i ,z i The propagation distance from it to any point on the reference plane can be calculated as follows: The complex amplitude produced by the object point on the reference plane is calculated as follows: The total object light field is obtained by superimposing the complex amplitudes of all sampling points, that is, by passing the complex amplitudes of all sampling points through... By performing linear superposition, introducing a reference beam, generating an interference pattern and normalizing it (i.e., assuming the reference beam is a plane wave), the total intensity distribution after the interference of the object beam and the reference beam is calculated using the interference formula: After expansion, it contains self-interference terms, reference light terms, and cross terms, with the cross terms carrying the original 3D information. The interference pattern IX,Y is normalized so that its pixel values ​​fall between 0 and 255. .

[0079] Furthermore, the normalized digital hologram H(X,Y) undergoes phase mapping processing, mapping its grayscale values ​​to phase delay. When using a phase-type hologram, the continuous phase distribution is further quantized into K-order discrete phase levels to adapt to the fabrication capabilities of micro-nano processes. The phase levels correspond to the height steps of the microstructure, and the height h of each step satisfies the phase matching condition. Next, the quantized phase distribution is converted into mask pattern data, and the pixel size is set to match the resolution of the processing equipment. Then, a micro-nano optical imaging layer 131 is formed on the substrate layer 133 using any of the following high-precision micro-nano processing techniques: Nanoimprint Lithography (NIL), Electron Beam Lithography (EBL), or Laser Direct Writing (LDW). Finally, the metal layer 132, the micro-nano optical imaging layer 131, the filter layer 134, and the substrate layer 133 are sequentially composited to form a film 13.

[0080] The present invention also proposes a vehicle.

[0081] The vehicle according to an embodiment of the present invention includes the light-emitting device 100 of any of the above.

[0082] According to an embodiment of the present invention, a vehicle is provided with a light source 12 and a diaphragm 13. The diaphragm 13 is disposed on the light-emitting side of the light source 12, and the diaphragm 13 is provided with a micro-nano optical imaging layer 131, so that the light emitted by the light source 12 can be diffracted and modulated in the micro-nano optical imaging layer 131, thereby outputting a multi-view differentiated stereoscopic light field. Based on the binocular parallax depth information inherent in the light field, a real dynamic three-dimensional stereoscopic imaging is achieved, which is completely different from the static pseudo stereoscopic imaging scheme of the prior art that uses planar stacking. This can improve the lighting effect of the light-emitting device 100, thereby improving the user experience. In addition, the diaphragm 13 is relatively thin, which can ensure the overall thickness of the light-emitting device 100, thereby ensuring the vehicle's lightweight design, better performance, and wider applicability.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0084] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A light-emitting device, characterized in that, include: A light source (12) and a diaphragm (13) are provided. The diaphragm (13) is disposed on the light-emitting side of the light source (12). The diaphragm (13) is provided with a micro-nano optical imaging layer (131). The micro-nano optical imaging layer (131) is used to diffract and modulate the light emitted by the light source (12) so that the light-emitting device (100) outputs differentiated three-dimensional patterns with parallax information at different viewing angles.

2. The light-emitting device according to claim 1, characterized in that, The diaphragm (13) also includes a metal layer (132) located on the side of the micro-nano optical imaging layer (131) away from the light source (12). The metal layer (132) is configured to transmit imaging when the light source (12) is lit, and when the light source (12) is turned off, external light is adapted to be reflected in the metal layer (132) to form a metallic mirror appearance.

3. The light-emitting device according to claim 2, characterized in that, The membrane (13) further includes a substrate layer (133) and a filter layer (134). The filter layer (134) is located between the micro-nano optical imaging layer (131) and the substrate layer (133), and the metal layer (132), the micro-nano optical imaging layer (131) and the filter layer (134) are sequentially composited on the substrate layer (133).

4. The light-emitting device according to claim 3, characterized in that, The thickness of the diaphragm (13) is set to be less than or equal to 1 mm, and the thickness of the metal layer is set to be 10 nm-50 nm; The thickness of the substrate layer (133) is greater than the thickness of the metal layer (132), the micro-nano optical imaging layer (131), and the filter layer (134), respectively.

5. The light-emitting device according to claim 1, characterized in that, Also includes: The housing (11) and the bottom shell assembly (2) are located inside the body sheet metal (101), the housing (11) is located outside the body sheet metal (101), the light source (12) is installed inside the housing (11), and the diaphragm (13) is located on the side of the housing (11) away from the body sheet metal (101). The housing (11) and the bottom shell assembly (2) are detachably connected to both sides of the body sheet metal (101) by a connector (3).

6. The light-emitting device according to claim 5, characterized in that, The housing (11) has at least one mounting portion (111) on the side away from the diaphragm (13), the bottom shell assembly (2) has at least one mounting mating portion (21), at least one mounting portion (111) and at least one mounting mating portion (21) are provided in a one-to-one correspondence, the body sheet metal (101) has a through hole (102), at least a portion of the mounting portion (111) is adapted to pass through the through hole (102) to be connected to the mounting mating portion (21) via the connector (3).

7. The light-emitting device according to claim 5, characterized in that, The housing (11) is also provided with a circuit board (14), which is located on the side of the light source (12) away from the diaphragm (13). The light source (12) is electrically connected to the circuit board (14), and the circuit board (14) is provided with a wire harness (141). The wire harness (141) is adapted to pass through the body sheet metal (101) to extend into the bottom shell assembly (2). The bottom shell assembly (2) is provided with a drain pipe (22), which connects the lower part of the bottom shell assembly (2) to the outside.

8. The light-emitting device according to any one of claims 1-7, characterized in that, The micro-nano optical imaging layer (131) is constructed as a micro-nano diffractive optical structure, and the micro-nano diffractive optical structure is configured as one of the following: surface relief waveguide, volume holographic waveguide, columnar grating, DOE, and metasurface.

9. A three-dimensional stereoscopic imaging method for a light-emitting device, applied to the light-emitting device (100) according to any one of claims 1-8, characterized in that, The three-dimensional stereo imaging method includes: The light emitted from the light source (12) is diffracted and modulated using the micro-nano optical imaging layer (131) of the diaphragm (13); The light, after being diffracted and modulated, is emitted outward to output differentiated three-dimensional patterns with parallax information from different viewing angles.

10. A vehicle, characterized in that, The light-emitting device (100) includes any one of claims 1-8.

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