Vehicle with ambient projection lights

Abstract

The present invention relates to a vehicle with an atmosphere projection lamp, comprising an interior part and a projection lamp assembly; the interior part comprises a projected surface and a support portion protruding relative to the projected surface; the projection lamp assembly comprises at least two RGB light sources, at least two lighting lens groups and an MLA lens, the MLA lens comprises a lens base and at least two pattern portions of imaging patterns; the object plane aperture of the lighting lens group is larger than the light emitting area of ​​the RGB light source, and the light receiving angle of the light source side of the lighting lens group is larger than the divergence angle of the RGB light source, and the light emitting angle of the lighting lens group is smaller than the field angle of the MLA lens; the light emitted by the RGB light source passes through the corresponding lighting lens group and the back of the MLA lens and irradiates the projected surface. The beneficial effect of the present invention is that the switching and color change of the projection pattern on the interior part are realized by adopting the MLA lens and the RGB light source, and the color of the projection pattern can be changed while the projection pattern has no obvious color difference problem.

Description

Technical Field

[0001] The invention relates to the field of vehicles, and in particular to a vehicle with an atmosphere projection lamp. Background Art

[0002] With the development of vehicles, users have higher and higher demands for the atmosphere effect of vehicles. Conventional vehicle-mounted atmosphere lights include light guide strips, light guide plates and projection lamps. The light guide strip form is to form a luminous light strip on the interior decoration to achieve a one-dimensional linear atmosphere effect, and the color can be changed. For example, the light guide plate form is to set a surface-emitting light guide plate inside the vehicle door panel, and then cover the outside of the door panel with a skin with a specific light-transmissive pattern to achieve a two-dimensional pattern atmosphere effect. However, the atmosphere light in the form of a light guide plate is relatively limited. Although the color can also be changed, the pattern cannot be switched. The projection lamp form is to install a projection lamp with film in the car, which can project a pattern to achieve a two-dimensional pattern atmosphere effect. The advantage of the projection lamp is that it integrates multiple projection modules to achieve the effect of switching multiple patterns, but the disadvantage is that the more patterns there are, the more projection modules there are. Not only is the cost higher and the overall size larger, but the installation space requirements in the car are also higher. Summary of the invention

[0003] In order to avoid the shortcomings of the background technology, the present invention provides a vehicle with an atmosphere projection lamp, which can realize a projection pattern on the vehicle with changeable patterns and colors and no obvious color difference problem.

[0004] The present invention provides a vehicle with an atmosphere projection lamp, comprising an interior trim and a projection lamp assembly arranged in the vehicle; the interior trim comprises a projection surface and a support portion protruding relative to the projection surface, the projection lamp assembly is installed in the support portion and obliquely projects on the projection surface to form a projection pattern; the projection lamp assembly comprises at least two RGB light sources, at least two groups of illumination lens groups and an MLA lens, the MLA lens comprises a lens base and a pattern portion, the pattern portion comprises at least two groups of imaging patterns; the number of RGB light sources, the illumination lens group and the imaging pattern are the same and the positions are corresponding; the object plane aperture of the illumination lens group is larger than the light emitting surface of the RGB light source; The area is large, and the light receiving angle of the light source side of the lighting lens group is larger than the divergence angle of the RGB light source; the light emitted by the red light-emitting chip, the green light-emitting chip and the blue light-emitting chip in each of the RGB light sources can completely cover the corresponding imaging pattern after passing through the corresponding lighting lens group; the light output angle of the lighting lens group is smaller than the field of view angle of the MLA lens; the light emitted by the RGB light source passes through the corresponding lighting lens group and the back of the MLA lens to irradiate the projected surface, and different RGB light sources can form different projection patterns on the projected surface of the interior decoration part after being lit; the optical axis of the RGB light source is inclined and non-vertical to the projected surface.

[0005] Furthermore, the field of view of the MLA lens is less than 10 degrees.

[0006] Furthermore, each group of imaging patterns also includes a number of light-transmitting sub-patterns, and all sub-patterns are arranged in the overlapping area of ​​three light spots formed by the red light-emitting chip, the green light-emitting chip and the blue light-emitting chip on the MLA lens.

[0007] Furthermore, a light isolation portion is provided between each illumination lens group, and the light isolation portion is used to prevent light from mutually scattering between each illumination lens group.

[0008] Furthermore, the illumination lens group includes a first illumination lens and a second illumination lens.

[0009] Preferably, the interior trim is a door panel body, a dashboard, a vehicle window, a seat or a ceiling.

[0010] Furthermore, the projected surface of the interior decoration part is a free-form surface.

[0011] The vehicle of the present invention can set a projection lamp assembly on any interior part that has projection conditions in the vehicle and project an atmosphere pattern on the interior part. By adopting MLA lens and RGB light source technology, the switching of projection patterns and the color change effect can be achieved on the interior part. The color of the projection pattern can be changed and there is no obvious color difference problem in the projection pattern, and the overall visual effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 2 is a simplified schematic diagram of the in-vehicle projection lamp of the embodiment.

[0013] Figure 2 It is a three-dimensional schematic diagram of the projection lamp assembly.

[0014] Figure 3 It is a schematic diagram of the structure of the projection lamp assembly.

[0015] The reference numerals are as follows: 100 - interior part; 110 - projected surface; 200 - projection lamp assembly; 210 - RGB light source; 220 - lighting lens group; 221 - first lighting lens; 222 - second lighting lens; 230 - MLA lens; 300 - projection pattern. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] For example, see the attached Figure 1-3A vehicle with an ambient projection lamp comprises an interior trim 100 and a projection lamp assembly 200 arranged in the vehicle; the interior trim 100 comprises a projection surface 110 and a support portion protruding relative to the projection surface 110, the projection lamp assembly 200 is installed in the support portion and obliquely projects on the projection surface 110 to form a projection pattern 300; the projection lamp assembly 200 comprises four RGB light sources 210, four lighting lens groups 220 and an MLA lens 230 along the optical axis direction, the MLA lens 230 comprises a lens base and a pattern portion, the pattern portion comprises four imaging patterns; the number of the RGB light sources 210, the lighting lens group 220 and the imaging pattern are the same and the positions are corresponding; the object plane aperture of the lighting lens group 220 is larger than the light emitting area of ​​the RGB light source 210, and the light receiving angle of the light source side of the lighting lens group 220 is larger than the light emitting area of ​​the RGB light source 210 10; the light emitted by the red light-emitting chip, the green light-emitting chip and the blue light-emitting chip in each of the RGB light sources can completely cover the corresponding imaging pattern after passing through the corresponding lighting lens group; the light output angle of the lighting lens group 220 is smaller than the field of view angle of the MLA lens 230; each lighting lens group 220 includes a first lighting lens 221 and a second lighting lens 222, which together converge the light of the RGB light source 210 and illuminate the MLA lens 230; the light emitted by the RGB light source 210 passes through the corresponding lighting lens group 220 and the back of the MLA lens 230 and illuminates the projected surface 110, and different RGB light sources 210 can form different projection patterns 300 on the projected surface 110 of the interior decoration part 100 after being lit; the optical axis of the RGB light source 210 is inclined and non-vertical to the projected surface 110.

[0018] In the vehicle of this embodiment, the projection lamp assembly 200 can be installed on any interior part 100 with projection conditions in the vehicle and the atmosphere pattern can be projected on the interior part 100. In addition, by using the MLA lens 230 and the RGB light source 210 technology, the switching and color change effects of the projection pattern 300 can be achieved on the interior part 100. The color of the projection pattern 300 can be changed and there is no obvious color difference problem of the projection pattern 300, and the overall visual effect is good. In addition, compared with the traditional film projection lamp assembly, the MLA lens projection lamp assembly can be reduced in size in the optical axis direction because it saves the imaging lens group, and can also reduce the number of components, that is, the number of lenses.

[0019] As mentioned above, the interior trim 100 in the vehicle of this embodiment can form a projection pattern 300 with good effects, that is, the projection pattern 300 can be switched and the color can be changed without obvious color difference. Among them, the switchability of the projection pattern 300 is relatively easy to understand. By setting multiple RGB light sources 210, multiple lighting lens groups 220 and MLA lenses 230, different RGB light sources 210 can be lit to form different projection patterns 300 on the projected surface 110 of the interior trim 100. The color difference problem is relatively complicated. The origin and solution of the color difference problem are explained below:

[0020] Assuming that the projection lamp uses white light LED lamp beads, since the light emitted by the white light LED lamp beads is directly white light, the color of the projection pattern 300 is directly white, so the projection lamp using white light LED lamp beads will not have a color difference problem of the projection pattern 300, but the projection lamp using white light LED lamp beads will not be able to achieve the effect of color change; under the premise of the same structure, if the projection lamp directly replaces the white light LED lamp beads with RGB-LED lamp beads, color difference problems will occur.

[0021] There are many factors that cause chromatic aberration, among which the main reasons are: compared with white light LED lamp beads, since the RGB-LED lamp beads include three light-emitting chips of different colors, there is a physical spatial distance between the three light-emitting chips, even if the distance is very small; theoretically, the light emitted by the red light-emitting chip irradiates the lighting lens group 220 to form a red illuminated area, and similarly, the light emitted by the green light-emitting chip and the blue light-emitting chip irradiates the lighting lens group 220 to form a green illuminated area and a blue illuminated area respectively. Since there is a physical spatial distance between the three light-emitting chips of different colors, the first illuminated area, the second illuminated area and the third illuminated area are not completely overlapped; the color of the projection pattern 300 is a mixture of three-color light, and the preset ratio between the three-color light determines the actual color on the projection pattern 300. If the lighting lens group 220 fails to fully receive the light emitted by the RGB-LED lamp beads, that is, lacks some light of a certain color, it will cause the actual ratio of the three-color light in some areas of the projection pattern 300 to be different from the preset ratio, thereby causing chromatic aberration problems in some areas of the projection pattern 300. Therefore, in order to solve the chromatic aberration problem, the object surface aperture of the illumination lens group 220 in this embodiment is larger than the light emitting area of ​​the RGB light source 210, and the light receiving angle of the light source side of the illumination lens group 220 is larger than the divergence angle of the RGB light source 210, so that the light emitted by the RGB-LED lamp beads is completely received by the corresponding illumination lens group 220 as much as possible, and at the same time, the light emitted by the red light emitting chip, the green light emitting chip and the blue light emitting chip in each of the RGB light sources can completely cover the corresponding imaging pattern after passing through the corresponding illumination lens group, so that the difference between the actual proportion of the three-color light irradiated by the sub-pattern in the imaging pattern and the preset proportion can be minimized, thereby solving or reducing the chromatic aberration problem. In addition, in this embodiment, the light emitting angle of the illumination lens group 220 needs to be smaller than the field of view angle of the MLA lens 230, otherwise the light emitted by the illumination lens group 220 will be emitted to the non-projection area of ​​the projected surface 110 due to the angle when passing through the MLA lens 230, thereby causing the chromatic aberration problem of the projection pattern 300 and forming stray light or ghost images in the non-projection area outside the projection pattern 300.

[0022] In this embodiment, the viewing angle of the MLA lens 230 is less than 10 degrees.

[0023] It should be noted that, due to the characteristics of the MLA lens 230, each group of imaging patterns also includes a number of sub-patterns. Due to the projection angle, the sub-patterns in each group of imaging patterns are actually slightly different, but the sub-patterns in the same group of imaging patterns can form the same projection pattern 300 on the projected surface 110. In order to ensure that the light emitted by the three-color light-emitting chip can completely cover the corresponding imaging pattern after passing through the corresponding illumination lens group, all sub-patterns can be set in the overlapping area of ​​the three light spots formed by the three-color light-emitting core on the MLA lens, and light shielding is performed in other areas where the sub-patterns are not located.

[0024] In order to prevent light from each lighting lens group 220 from entering into an adjacent lighting lens group 220 , a light isolation portion is provided between each lighting lens group 220 , and the light isolation portion is used to prevent light from mutually interleaving between each lighting lens group 220 .

[0025] The interior trim 100 in the vehicle of this embodiment may be a door panel body, a dashboard, a window, a seat or a ceiling, and these interior trims 100 all have a surface of a certain area for forming the projection pattern 300. The projected surface 110 is a free-form surface.

[0026] Although the present invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that it is not limited to the above embodiments and that various changes in form and details may be made within the scope of the claims.

Claims

1. A vehicle with an ambient projection lamp, characterized in that: The invention comprises an interior decoration part and a projection lamp assembly arranged in a vehicle; the interior decoration part comprises a projection surface and a support part protruding relative to the projection surface, and the projection lamp assembly is installed in the support part and obliquely projects on the projection surface to form a projection pattern; The projection lamp assembly includes at least two RGB light sources, at least two groups of illumination lens groups and an MLA lens, wherein the MLA lens includes a lens base and a pattern portion, wherein the pattern portion includes at least two groups of light-transmissive imaging patterns, and each group of imaging patterns also includes a plurality of light-transmissive sub-patterns; the RGB light sources, illumination lens groups and imaging patterns are the same in number and in corresponding positions; The object plane aperture of the illumination lens group is larger than the light emitting area of ​​the RGB light source, and the light receiving angle of the light source side of the illumination lens group is larger than the divergence angle of the RGB light source; the light emitted by the red light emitting chip, the green light emitting chip and the blue light emitting chip in each of the RGB light sources passes through the corresponding illumination lens group and is irradiated on the MLA lens, and can completely cover the corresponding imaging pattern; the light emitting angle of the illumination lens group is smaller than the field of view angle of the MLA lens; The light emitted by the RGB light source passes through the corresponding illumination lens group and the back of the MLA lens and irradiates the projection surface. Different RGB light sources can form different projection patterns on the projection surface of the interior decoration part after being lit; the optical axis of the RGB light source is in an inclined non-vertical relationship with the projection surface; The illumination lens group includes a first illumination lens and a second illumination lens.

2. A vehicle with an ambient projection lamp according to claim 1, characterized in that: The field of view of the MLA lens is less than 10 degrees.

3. The vehicle with an ambient projection lamp according to claim 1, characterized in that: All sub-patterns are arranged in the overlapping area of ​​three light spots formed by the red light-emitting chip, the green light-emitting chip and the blue light-emitting chip on the MLA lens.

4. The vehicle with an ambient projection lamp according to claim 1, characterized in that: A light isolation portion is provided between each of the illumination lens groups, and the light isolation portion is used to prevent light from mutually scattering between the illumination lens groups.

5. The vehicle with an ambient projection lamp according to claim 1, characterized in that: The interior trim is a door panel body, a dashboard, a vehicle window, a seat or a ceiling.

6. The vehicle with an ambient projection lamp according to claim 5, characterized in that: The projected surface of the interior decoration part is a free-form surface.

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