Projection device, projection module and vehicle

Abstract

The utility model discloses a projection device, a projection module and a vehicle. The projection device comprises a plurality of local projection single channels arranged in an array; each local projection single channel is provided with a mask unit, the mask unit of each local projection single channel is provided with a local pattern block for light to pass through, each local pattern block is a part of a preset overall pattern, two or more local pattern blocks form the overall pattern, and the projection device is configured to respond to a light source component arranged on the light incident side. And an integral image corresponding to the integral pattern is formed on the light emitting side. Local blocks in different local projection single channels are respectively a part of a preset overall pattern, that is, the overall pattern is composed of at least two local blocks, and the intensity of light energy which can pass through different local blocks can be freely and flexibly regulated and controlled. Therefore, the overall image which is finally projected and superposed on the ground can easily present the image effects of partition brightness change and brightness gradual change, and the effects of emphasizing display information, increasing interactivity or increasing the sense of science and technology and advanced sense of projection are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optics, in particular to a projection device, a projection module and a vehicle. BACKGROUND

[0002] According to the imaging principle, the current projection lamp can be divided into three types of Filing lens, MLA (micro lens array) and DLP. Among them, MLA technology is a method based on optical micro lens, which is widely used in imaging, display and lighting system. It regulates light through the arrangement of multiple micro lens units on the surface to form multiple channels, so as to realize efficient light distribution and accurate control.

[0003] Specifically, the MLA module draws patterns on the mask layer of each micro lens, and the light passes through the pattern of the micro lens, is collimated and projected by the optical system such as the collimating lens and the projection lens, so as to project the light with pattern information on the ground to form a single image, and multiple single images are superimposed to form a projection image, so as to realize the effect that the user wants. In the traditional MLA, each micro lens has a basically complete pattern. Such design is monotonous, the prompt information is not prominent, the interactive experience is poor, and it cannot meet the current diverse needs. CONTENT OF THE INVENTION

[0004] The present application provides a projection device, a projection module and a vehicle to solve at least part of the problems and needs mentioned above.

[0005] The present application provides a projection device, a projection module and a vehicle to solve at least part of the problems and needs mentioned above.

[0006] In some embodiments, on the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, …, an nth channel group, n≥2, each channel group is used to form a local image segment on the light-out side, and the local image segment is a part of the overall image; wherein the first channel group is arranged near the middle of the array surface of the projection device, and the remaining channel groups are arranged on the outside of the first channel group in the direction gradually away from the middle of the array surface.

[0007] Preferably, in the direction gradually away from the middle of the array surface, each channel group is arranged side by side on the array surface.

[0008] In some embodiments, each local patch in a single channel group contains a pre-enhanced element.

[0009] The channel group includes a local patch I capable of passing light and projecting a basic coverage of a local image segment, and a local patch II capable of passing light and projecting a partial coverage of a local image segment, the local patch I being arranged in a cross shape near the center of the array surface.

[0010] In some embodiments, some local patches contain pre-enhanced elements, and the number of local patches containing pre-enhanced elements is greater than the number of local patches not containing pre-enhanced elements.

[0011] In some embodiments, on the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, …, an nth channel group, n≥2, each channel group being used to form a local image segment on the light-out side, the local image segment being a part of the overall image; wherein the number of local projection single channels in at least one channel group is greater than the number of local projection single channels in the remaining channel groups.

[0012] In some embodiments, the local projection single channel includes:

[0013] A condensing microlens arranged on the light-in side of the mask unit, used to converge light entering through the light-in side and guide it into the local patch; and / or,

[0014] A projection microlens arranged on the light-out side of the mask unit, used to project a light pattern to the light-out side.

[0015] In one aspect, the present application provides a projection module configured to project an overall image, comprising:

[0016] A light source component arranged on the light-in side of the local projection single channel, configured to emit light to activate each local projection single channel and present an overall image on the light-out side of the projection device;

[0017] A projection device comprising a plurality of local projection single channels arranged in an array, each local projection single channel being configured to project a local single image on the light-out side, each local single image being a part of the overall image and substantially within the range of the overall image; wherein two or more local single images constitute the overall image.

[0018] In some embodiments, the main light-out direction of the light source component is towards the middle of the array surface, and the brightness of the light emitted by the light source component when irradiating the area near the middle of the light-in side of the projection device is greater than the brightness of the light irradiating the area away from the middle of the light-in side of the projection device.

[0019] On the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, a second channel group, …, and an nth channel group arranged in sequence, n≥2, each channel group being used to form a local image segment on the light exit side, the local image segment being a part of the overall image; wherein the first channel group is arranged close to the middle of the array surface of the projection device, and in the direction gradually away from the middle of the array surface, the remaining channel groups are arranged in sequence on the outside of the first channel group.

[0020] Preferably, in the direction gradually away from the middle of the array surface, each channel group can be arranged in sequence side by side on the array surface.

[0021] In some embodiments, each local image block of each local projection single channel contained in a single channel group contains a pre-enhanced element.

[0022] The channel group includes a local image block I capable of passing light and projecting to substantially cover a local image segment, and a local image block II capable of projecting to cover part of a local image segment, the local image block I being arranged close to the center of the array surface and in a cross shape.

[0023] In some embodiments, on the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, a second channel group, …, and an nth channel group, n≥2, each channel group being used to form a local image segment on the light exit side, the local image segment being a part of the overall image; wherein the number of local projection single channels in at least one channel group is greater than the number of local projection single channels in the remaining channel groups.

[0024] A vehicle, characterized in comprising the projection device and the projection module of any one of the above.

[0025] In the present embodiment, the local image blocks in different local projection single channels are respectively a part of a preset overall pattern, i.e., the overall pattern is composed of at least two local image blocks, the shapes of different local image blocks and the positions of different local image blocks on the array surface are different, and the number of local image blocks of the same shape and the distribution form on the array surface can be customized according to individualized needs, so that the light energy intensity that can be passed by different local image blocks can be freely and flexibly regulated, so that the overall image formed by the projection of each single image on the ground is more likely to present an image effect of zoned brightness variation and brightness gradient, and the effect of emphasizing display information, increasing interactivity, or increasing the sense of projection technology and seniority is achieved.

[0026] The most preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings, so that the features and advantages of the present application can be easily understood. BRIEF DESCRIPTION OF DRAWINGS

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments of this application will be briefly described below. The drawings are merely illustrative of some embodiments of this application and are not intended to limit all embodiments of this application to them.

[0028] Figure 1 A schematic diagram of a projection pattern formed by overlaying traditional MLA modules;

[0029] Figure 2 This is a schematic diagram of the structure of a projection device provided in one embodiment of this application;

[0030] Figure 3 To and Figure 2 The corresponding preset overall pattern diagram;

[0031] Figure 4 This application provides an embodiment of a projection device that projects an overall pattern structure.

[0032] Figure 5 for Figure 2 A schematic diagram illustrating the division of the first channel group in the embodiment;

[0033] Figure 6 for Figure 5 Schematic diagram of the first channel group in the middle;

[0034] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0035] Figure 8 This is a schematic diagram of a local image segment formed by the projection of the first channel group on the light-emitting side.

[0036] Figure 9 for Figure 2 A schematic diagram illustrating the division of the second channel group in the embodiment;

[0037] Figure 10 This is a schematic diagram of a local image segment formed by the projection of the second channel group on the light-emitting side.

[0038] Figure 11 A schematic diagram of setting up a single-channel overall projection for a projection device;

[0039] Figure 12 This is a schematic diagram of the projection optical path of a projection module provided in one embodiment of this application;

[0040] Figure 13 A cross-sectional view of a projection device provided in another embodiment of this application;

[0041] Figure 14 This is a schematic diagram of the arrangement of multiple local element groups on a projection device according to another embodiment of this application;

[0042] Figure 15 For Figure 14 The projection device provided by the embodiment projects the overall pattern schematically;

[0043] In the figure,

[0044] 1, overall pattern;

[0045] 2, overall image; 21a, first partial image segment; 21b, second partial image segment; 2', overall image array;

[0046] 10, projection device; 10a, first channel group; 10b, second channel group; 100, partial projection single channel; 111, partial tile; 111a, partial tile I; 111b, partial tile II; A, pre-enhanced element;

[0047] 111', partial tile group; 111a', partial tile group I; 111b', partial tile group II; 111c', partial tile group III;

[0048] 120, condensing microlens; 130, projection microlens;

[0049] 200, overall projection single channel;

[0050] 20, light source component. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the technical solutions of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. The same reference signs in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0052] Unless otherwise defined, technical terms or scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms "first", "second", and similar terms do not imply any order, quantity, or importance, but are used to distinguish one element from another, and are used arbitrarily. Similarly, the terms "one" or "the" do not necessarily mean "one" or "the", but can mean "one" or "the". The terms "include" or "contain" or similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are used to indicate relative positional relationships, which can change accordingly when the absolute position of the described object changes.

[0053] As Figure 1 In the MLA module, by engraving a pattern on the mask layer of each microlens, the light passes through the pattern of each microlens, is collimated and projected through the optical system such as the collimating and projection lenses, and the light with pattern information is projected onto the ground to form a single image. Multiple single images are superimposed to form a projection image, thereby realizing the desired effect of the user, such as the projection lamp technology disclosed in patent CN213635296U which applies MLA. That is, each microlens of the traditional MLA has a substantially complete pattern, which is superimposed on the screen after being projected by the system, thereby forming a complete image. However, because the image projected by each channel is a complete image or covers the entire target projection area, the formed image is relatively rigid, the prompt information is not prominent, and the interactive experience is poor; and the design is monotonous, which cannot meet the current diverse needs.

[0054] Therefore, with reference to Figures 2-4 , Figure 12 The present application provides a projection device 10 comprising a plurality of local projection single channels 100 arranged in an array; the local projection single channel 100 has a mask unit, and each local projection single channel 100 has a local tile 111 for light to pass through on the mask unit, each local tile 111 is a part of a predetermined overall pattern 1, two or more local tiles 111 form the overall pattern 1, and each local projection single channel 100 of the projection device 10 can respond to the light of the light source component 20 on the light-in side and cooperate with the projection on the light-out side to form an overall image 2 corresponding to the overall pattern 1.

[0055] Specifically, taking the preset overall pattern 1 as an "arrow" as an example. Different local tiles 111 in different local projection single channels 100 are respectively a part of the preset overall pattern 1, that is, the overall pattern 1 is composed of at least two local tiles 111 (the composition form here can be butt joint without overlap or splicing with partial overlap), the shapes of different local tiles 111 and the positions of different local tiles 111 on the array surface of the projection device array are different, and the number of local tiles 111 of the same shape and the distribution form on the array surface can be customized according to personalized needs, so that the light energy intensity that can be passed by different local tiles 111 can be freely and flexibly regulated, so that the local single image formed by each local projection single channel 100 is more likely to present a zoned brightness change and a brightness gradient image effect when superimposed to form the overall image 2 on the ground, so as to emphasize the display information, increase the interactivity, or increase the projection technology and seniority.

[0056] It is worth noting that, regarding the array arrangement of the present application, the array can be a matrix structure arranged in two or more directions in sequence, or a structure arranged in a single direction in sequence, both of which are within the protection scope of the present application, and the present application does not make any limitation.

[0057] Reference Figures 5-10 In some embodiments, on the array surface of the projection device 10, the plurality of local projection single channels 100 are divided into a first channel group 10a, …, an nth channel group, n≥2, each channel group is used to form a local image segment (21a, 21b) on the light exit side, and the local image segment (21a, 21b) is a part of the overall image 2; wherein the first channel group 10a is arranged close to the middle of the array surface of the projection device 10, and the remaining channel groups are sequentially arranged outside the first channel group 10a in the direction gradually away from the middle of the array surface.

[0058] Specifically, taking n=2 as an example, that is, the local projection single channel 100 is divided into a first channel group 10a and a second channel group 10b, and on the array surface of the projection device 10, the second channel group 10b is arranged outside the first channel group 10a. In particular, when Figure 12The light source component 20 is arranged at the light-in side of the projection device 10 and at the position where the projection of the array surface is close to the middle part of the array surface. When the light emitted by the light source component 20 hits the projection device 10, the brightness of the area close to the middle part of the array surface is greater than the brightness of the area far from the middle part of the array surface. The unit area light quantity of the area close to the middle part of the array surface is relatively large. Therefore, in the case that the number of local projection single channels 100 in the adjacent two channel groups is similar, the light beam intensity passing through the first channel group 10a is greater than the light beam intensity passing through the second channel group 10b, that is, the brightness of the first local image segment 21a (the head segment of the arrow) projected by the first channel group 10a is greater than the brightness of the second local image segment 21b (the tail segment of the arrow) projected by the second channel group 10b. The unit area light quantity of the area far from the middle part of the array surface is relatively small, which is beneficial to the second local image segment 21b with weak light brightness, and finally makes the ground can present the projection effect of the overall image 2 with gradually changing brightness.

[0059] Preferably, in the direction gradually away from the middle part of the array surface, each channel group can be arranged side by side on the array surface in sequence, and the side-by-side arrangement is simple in layout design and easy to arrange and print in production, and is also convenient for flexible change and adjustment of the shape of the local block 111 of each channel group.

[0060] Reference Figures 6-8 In some embodiments, each local block 111 contained in a single channel group contains a pre-enhanced element A (the sharp corner at the front end of the arrow, the position with the maximum expected projection brightness);

[0061] The channel group includes a plurality of local blocks 111 capable of passing light and projecting to substantially cover Figure 8 The local block I 111a of the first local image segment 21a and the local block II 111b projecting to cover part of the first local image segment 21a, the local block I 111a is close to the center of the array surface and is arranged in a cross shape.

[0062] Specifically, when the local block I 111a is arranged at the position close to the center of the array surface and in a cross shape, the local block I 111a projects to substantially cover the entire first local image segment 21a, the passing light is more and the light brightness is uniform in the two intersecting directions of the "cross shape", which can ensure that the entire first local image segment 21a projected to the ground has a large and uniform brightness. In addition, each local block 111 contained in a single channel group contains a "pre-enhanced element A", so that the front end sharp corner position corresponding to the "pre-enhanced element A" on the projected first local image segment 21a appears greater and more prominent brightness, the first local image segment 21a presents more prominent gradient display effect, and the light brightness from the arrow tip to the arrow tail presents multi-level and multi-level weakening.

[0063] By implementing the scheme of the embodiment, the overall image 2 can be split into multiple gradient display levels according to design requirements, and the above method is used to achieve the effects of multiple levels of gradual strengthening or weakening, or the effect of highlighting display, so that the pattern prompt information is more clear, the design of the pattern can be more rich, and a better perceptual interactive experience is provided for the user.

[0064] In some other embodiments, in the projection device, some of the partial tiles 111 contain the pre-enhanced element A, and the number of the partial tiles 111 containing the pre-enhanced element A is greater than the number of the partial tiles 111 not containing the pre-enhanced element A. In the embodiment, in the projection device, by increasing the number of the partial tiles 111 containing the pre-enhanced element A, the light flux passing through the pre-enhanced element A is also increased, so that the position corresponding to the “pre-enhanced element A” in the overall image 2 on the ground appears to be larger and more prominent in brightness, and a gradient highlighting display effect is presented.

[0065] In some other embodiments, on the array surface of the projection device 10, the plurality of partial projection single channels 100 are divided into a first channel group 10a, …, an nth channel group, n≥2, each channel group being used to form a partial image segment (21a, 21b) on the light exit side, the partial image segment (21a, 21b) being a part of the overall image 2; wherein the number of the partial projection single channels 100 in at least one channel group is greater than the number of the partial projection single channels 100 in the remaining channel groups.

[0066] Specifically, in the embodiment, by increasing the number of the partial projection single channels 100 in the channel group, the light flux passing through the channel group is increased, so that the partial image segment presented by the channel group on the ground appears to be larger and more prominent in brightness, and a gradient display effect is presented as a whole. This setting is also suitable for the case where the light source component 20 is a large area light source directly opposite the projection device 10 or the brightness of each part projected onto the light entrance surface of the projection device 10 is substantially uniform.

[0067] Reference Figure 11 In some embodiments, the overall projection single channel 200 is further included, the mask unit of the overall projection single channel 200 has an overall tile for light to pass through, and the overall projection single channel 200 is configured to respond to the light source component and project an overall single image. In the embodiment, taking the case that the overall projection single channel and the partial projection single channel are arranged on the same array surface as an example, the overall tile in the overall projection single channel 200 is an overall pattern 1, and is used to project an overall single image; by increasing the overall projection single channel 200, the brightness of the overall image 2 projected onto the ground can be increased, and even if some of the partial projection single channels 100 are covered, some of the overall projection single channels 200 can still transmit light and form an image. The overall projection single channel and the partial projection single channel can also not be arranged on the same array surface, which is not limited herein.

[0068] ReferenceFigures 12-13 In some embodiments, the local projection single channel 100 comprises:

[0069] The condensing microlens 120 is arranged on the light-in side of the mask unit, and is configured to converge the light rays entering from the light-in side and guide the light rays into the local tile 111; and / or,

[0070] The projection microlens 130 is arranged on the light-out side of the mask unit, and is configured to project the light pattern to the light-out side.

[0071] After the light rays are shaped and modulated by the condensing microlens 120 and / or the projection microlens 130, the light rays are converged, and the projected image is clearer and brighter.

[0072] Reference Figures 2-4 、 Figure 12 In one aspect, the present application provides a projection module configured to project an overall image 2, comprising:

[0073] The light source component 20 is arranged on the light-in side of the local projection single channel 100, and is configured to emit light rays to activate each local projection single channel 100 and present the overall image 2 on the light-out side of the projection device 10.

[0074] The projection device 10 comprises a plurality of local projection single channels 100 arranged in an array, each of the local projection single channels 100 is configured to project a local single image on the light-out side, each of the local single images is a part of the overall image 2 and is substantially within the range of the overall image 2 (due to uneven projection surface or errors, part of the local single image may be outside the range of the overall image 2); wherein two or more local single images constitute the overall image 2.

[0075] Specifically, as described above, each of the different local projection single channels 100 has a local tile 111 for the light rays to pass through, and projects a local single image on the light-out side, each of the local single images is a part of the overall image 2 and is substantially within the range of the overall image 2, the overall image 2 is constituted by two or more local single images, the projection shapes of the different local projection single channels 100 and the positions of the different local projection single channels 100 on the array surface are different, and the number of the local projection single channels 100 with the same projection shape and the distribution form of the local projection single channels 100 on the array surface can be customized according to individual needs, so that the light energy intensity passed through by the local projection single channels 100 with different projection shapes can be freely adjusted, and the overall image 2 projected and superimposed on the ground can easily present an image effect of zoned brightness variation and brightness gradient, achieving the effects of highlighting display, enhancing interactivity, or increasing the sense of technology and seniority of the projection.

[0076] Reference Figures 5-10 、 Figure 12 In some embodiments,

[0077] The main light emitting direction of the light source component 20 is towards the middle of the array surface, and the light emitted by the light source component 20 is irradiated to the middle region close to the light entrance side of the projection device 10, and the brightness is greater than that irradiated to the region far from the middle region of the light entrance side of the projection device 10;

[0078] On the array surface of the projection device 10, the plurality of local projection single channels 100 are divided into first channel group 10a, …, nth channel group 10n arranged in sequence, n≥2, and each channel group is used to form a local image segment (21a, 21b) on the light exit side, which is part of the overall image 2; wherein the first channel group 10a is arranged close to the middle of the array surface of the projection device 10, and the remaining channel groups are arranged in sequence on the outer side of the first channel group 10a in the direction gradually away from the middle of the array surface.

[0079] Specifically, taking n=2 as an example, that is, the local projection single channel 100 is divided into the first channel group 10a and the second channel group 10b, and on the array surface of the projection device 10, the second channel group 10b is arranged on the periphery of the first channel group 10a. When the light source component 20 is arranged on the light entrance side of the projection device 10 and the main light emitting direction is towards the middle of the array surface, the light distribution on the surface of the projection device 10 is that the brightness of the region close to the middle of the array surface is greater than that of the region far from the middle of the array surface, and the light quantity per unit area of the region close to the middle of the array surface is relatively large. Therefore, in the case that the number of local projection single channels 100 in the adjacent two channel groups is similar, the light beam intensity passing through the first channel group 10a is greater than that passing through the second channel group 10b, that is, the brightness of the first local image segment 21a (the head segment of the arrow) projected by the first channel group 10a is greater than that of the second local image segment 21b (the tail segment of the arrow) projected by the second channel group 10b; the light quantity per unit area of the region far from the middle of the array surface is relatively small, which is beneficial to present the second local image segment 21b with weak light brightness, and finally the projection effect with gradually changing brightness on the ground can be presented.

[0080] Preferably, in the direction gradually away from the middle of the array surface, each channel group can be arranged in sequence side by side on the array surface, and the side-by-side arrangement is simple in layout design and easy to arrange and print in production, and it is also convenient to flexibly change and adjust the shape of the local block 111 of each channel group.

[0081] Reference Figures 6-8 In some embodiments, the local block 111 of each local projection single channel 100 contained in a single channel group contains a pre-enhanced element A (the sharp corner of the front end of the arrow, which is the position expected to have the maximum projection brightness);

[0082] The channel group includes a pre-enhanced element A (the sharp corner of the front end of the arrow, which is the position expected to have the maximum projection brightness) and a pre-enhanced element B (the sharp corner of the tail end of the arrow, which is the position expected to have the minimum projection brightness). Figure 8The local tile I 111a of the first local image segment 21a is arranged near the center of the array surface and in a cross shape.

[0083] Specifically, the projection of the local tile I 111a covers the entire first local image segment 21a, and the local tile I 111a is arranged near the center of the array surface and in a cross shape, so that more light passes through and the brightness is uniform in the two intersecting directions of the cross shape, which can ensure that the entire first local image segment 21a projected on the ground has a large and uniform brightness; and each local tile 111 included in a single channel group contains a “pre-enhanced element A”, so that the front end sharp corner position corresponding to the “pre-enhanced element A” on the projected first local image segment 21a appears a larger and more prominent brightness, and the first local image segment 21a presents a more prominent gradient display effect, with the light from the arrowhead to the arrow tail being multi-level and multi-level weakened.

[0084] By implementing the scheme of the embodiment, the overall image 2 can be divided into multiple gradient display levels according to design requirements, and the above method is used to achieve a multi-level gradient effect or a key emphasis display effect, so that the pattern prompt information is more clear, the design of the pattern can be more rich, and a better perception interaction experience is provided for the user.

[0085] In some other embodiments, on the array surface of the projection device 10, the plurality of local projection single channels 100 are divided into a first channel group 10a, …, an n-th channel group, n≥2, each channel group being used to form a local image segment (21a, 21b) on the light exit side, and the local image segment (21a, 21b) being a part of the overall image 2; wherein the number of local projection single channels 100 in at least one channel group is greater than the number of local projection single channels 100 in the remaining channel groups.

[0086] Specifically, in the embodiment, by increasing the number of local projection single channels 100 in the channel group, the light flux passing through the channel group can be improved, and thus the local image segment (21a, 21b) presented by the channel group on the ground can present a larger and more prominent brightness and an overall gradient display effect. This setting is also suitable for the case where the light source component 20 is a large area light source directly opposite the projection device 10 or the brightness of each part projected onto the light entrance surface of the projection device 10 is substantially uniform.

[0087] Reference Figure 11In some embodiments, a whole projection single channel 200 is further included, the mask unit of the whole projection single channel 200 has a whole tile for light to pass through, and is configured to respond to the light source component and project a whole single image. In this embodiment, taking the whole projection single channel 200 and the local projection single channel 100 arranged on the same array surface as an example, the whole tile in the whole projection single channel 200 is a whole pattern 1, which is used to project a whole single image. By increasing the arrangement of the whole projection single channel 200, the brightness of the whole image 2 projected on the ground can be enhanced, and even if part of the local projection single channel 100 is covered, part of the whole projection single channel 200 can still transmit light and form an image. The whole projection single channel and the local projection single channel can also not be arranged on the same array surface, which is not limited herein.

[0088] Reference Figures 14-15 In some embodiments, a single local tile 111 can also include a plurality of local elements (the local tile is in a dispersed form), and the plurality of local elements form a local element group 111';

[0089] The whole pattern is in the form of a whole array (the whole array is a hollow pattern composed of a plurality of small triangular patterns, and the whole array has a shape similar to ">>>"), the arrangement form of the plurality of local elements in the local element group 111' is basically consistent with the array form of the whole array, and at least two local element groups 111' jointly form a whole array; and the plurality of local projection single channels 100 are configured to respond to the light on the light entrance side of the projection device and project a whole image array 2' corresponding to the whole array on the light exit side.

[0090] Specifically, taking the preset whole pattern 1 as an example, the whole pattern 1 is a whole array composed of a plurality of small triangular patterns, and each local projection single channel 100 has a local element group 111': for example, the local element group I 111a' is a main array of a plurality of small triangular patterns, the local element group II 111b' is an array of edge parts of a plurality of small triangular patterns, and the local element group III 111c' is an array of another edge part of a plurality of small triangular patterns. The local element group I 111a' and the local element group II 111b' can form a whole array (the forming form can be butt joint without overlap or splicing with partial overlap). The shapes of different local element groups 111' and the positions of different local element groups 111' on the array surface of the projection device are different, and the number of local element groups 111' of the same shape and the distribution form on the array surface can be customized according to individual needs (for example, the number of local element group I 111a' is six, the number of local element group II 111b' is four, and the number of local element group III 111c' is two), so that the light energy intensity that can pass through different local element groups 111' can be freely and flexibly designed and controlled, so that the local single images projected by the local projection single channels 100 are superimposed to form a whole array 2' on the ground, which presents a pattern as shown inFigure 15 partitioned brightness variation, stereoscopic image effect.

[0091] In some embodiments, the shape of the partial primitive group III 111c' can be a part of the partial primitive group II 111b', and the projection of the partial primitive group III 111c' on the light-out side falls substantially in the partial area of the projection of the partial primitive group II 111b', so that the partial small location corresponding to the partial primitive group III 111c' on the edge of the triangular ground projection pattern appears a more prominent effect of brightness, i.e., the partial small part in the projection corresponding to the partial primitive group III 111c' presents a more prominent hierarchical display, and the pattern as a whole presents a stereoscopic effect with edge shading.

[0092] It is worth mentioning that, in addition to the above embodiments, the areas of the different partial primitive groups can not be equal, and the area ranges of the different partial primitive groups can be a containing-included relationship; the multiple partial primitives inside each partial primitive group can have the same or different areas, and the present application does not limit this.

[0093] In addition to the above-described embodiments of the present application, in some other embodiments, the partial tile 111 can also have other shapes or arrangements, which are not limited herein.

[0094] Another aspect of the present application provides a vehicle comprising the projection device 10 and the projection module described above. The projection device 10 and the projection module can be arranged at any position of the vehicle, not limited to the front, the rear, or the side of the vehicle, and the vehicle includes but is not limited to a car, a train, and other transportation tools.

[0095] The exemplary embodiments of the present application are described in detail above with reference to the preferred embodiments, however, those skilled in the art can understand that various modifications and changes can be made to the above-described specific embodiments without departing from the concept of the present application, and various technical features and structures proposed by the present application can be combined without exceeding the scope of the present application, and the protection scope of the present application is determined by the appended claims.

Claims

1. A projection device, characterized in that, a plurality of local projection single channels arranged in an array; the local projection single channels have mask units, each of the local projection single channels has a local tile on the mask unit for light to pass through, each of the local tiles is a part of a preset overall pattern, two or more local projection single channels form the overall pattern, and the plurality of local projection single channels are configured to respond to light on the light entry side of the projection device and project an overall image corresponding to the overall pattern on the light exit side.

2. The projection device according to claim 1, characterized in that On the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, …, an nth channel group, n≥2, each channel group is used to form a local image segment on the light exit side, and the local image segment is a part of the overall image; wherein the first channel group is arranged close to the middle of the array surface of the projection device; in the direction gradually away from the middle of the array surface, the remaining channel groups are arranged in turn on the outside of the first channel group.

3. The projection device according to claim 2, characterized in that In the direction gradually away from the middle of the array surface, each channel group is arranged side by side on the array surface in turn.

4. The projection device according to claim 2, characterized in that, Each local tile included in a single channel group contains a pre-enhanced element; The channel group includes a local tile I that can pass light and project to substantially cover a local image segment, and a local tile II that projects to cover part of a local image segment, and the local tile I is arranged close to the center of the array surface and in a cross shape.

5. The projection device according to claim 1, characterized in that, Some local tiles contain pre-enhanced elements, and the number of local tiles containing pre-enhanced elements is greater than the number of local tiles not containing pre-enhanced elements.

6. The projection device according to claim 1, characterized in that, On the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, …, an nth channel group, n≥2, each channel group is used to form a local image segment on the light exit side, and the local image segment is a part of the overall image; wherein the number of local projection single channels in at least one channel group is greater than the number of local projection single channels in the remaining channel groups.

7. The projection device according to claim 1, characterized by The projection device further comprises an overall projection single channel, and the mask unit of the overall projection single channel has an overall tile for light to pass through, and is configured to project an overall single image.

8. The projection device according to claim 1, characterized in that, The local projection single channel comprises: a condensing microlens arranged on the light entry side of the mask unit, used to converge light entering from the light entry side and guide into the local tile; and / or, a projection microlens arranged on the light exit side of the mask unit, used to project a light pattern to the light exit side.

9. A projection module, characterized by configured to project an overall image, comprising: a light source component arranged on the light entry side of the local projection single channel, configured to emit light to activate each local projection single channel of the projection device to present an overall image on the light exit side of the projection device; The projection device comprises a plurality of local projection single channels arranged in an array, each of the local projection single channels is configured to project a local single image on the light exit side, each of the local single images is a part of an overall image and substantially within the range of the overall image; wherein two or more local single images form the overall image.

10. The projection module of claim 9, characterized in that, The main light emitting direction of the light source component is towards the middle of the array surface of the projection device, and the light emitted by the light source component has a greater brightness when irradiating the middle area close to the light entrance side of the projection device than when irradiating the middle area far from the light entrance side of the projection device; On the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, …, an n-th channel group arranged in sequence, n≥2, and each channel group is used to form a local image segment on the light exit side, and the local image segment is part of the overall image; wherein the first channel group is arranged close to the middle of the array surface of the projection device, and the remaining channel groups are arranged in sequence on the outer side of the first channel group in the direction gradually away from the middle of the array surface.

11. The projection module of claim 10, wherein, In the direction gradually away from the middle of the array surface, each channel group can be arranged side by side on the array surface in sequence.

12. The projection module of claim 10, wherein, Each local image block of each local projection single channel included in a single channel group contains a pre-enhanced element. The channel group includes a local image block I capable of passing light and projecting to substantially cover a local image segment, and a local image block II capable of projecting to cover part of a local image segment, and the local image block I is arranged close to the center of the array surface and in a cross-shaped distribution.

13. The projection module of claim 9, wherein, On the array surface of the projection device, the plurality of local projection single channels are divided into a first channel group, …, an n-th channel group, n≥2, and each channel group is used to form a local image segment on the light exit side, and the local image segment is part of the overall image; wherein the number of local projection single channels in at least one channel group is greater than the number of local projection single channels in the remaining channel groups.

14. The projection module of claim 9, wherein, The projection device further comprises an overall projection single channel, and the mask unit of the overall projection single channel has an overall image block capable of passing light and is configured to respond to the light source component and project an overall single image.

15. The projection module of claim 12, wherein, The local image block comprises a plurality of local image elements, and the plurality of local image elements form a local image element group; The overall pattern is an overall image array, and the arrangement form of the plurality of local image elements in the local image element group is substantially consistent with the array form of the overall image array, and at least two local image element groups jointly form the overall image array; The plurality of local projection single channels are configured to respond to light on the light entrance side of the projection device and project an overall image array corresponding to the overall image array on the light exit side.

16. A vehicle characterized by comprising: The projection device of any one of claims 1-8 or the projection module of any one of claims 9-15.

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