Light guide and atmosphere lamp with diamond pattern effect

Abstract

The light guide with the diamond pattern effect comprises a long-strip-shaped light guide body, the light guide body comprises a light inlet band and a light outlet band which are arranged side by side in the width direction of the light guide body, and the surfaces of the two sides of the light outlet band in the thickness direction are each composed of a plurality of small planes. The included angle between every two adjacent small planes is larger than 0 degree and smaller than 180 degrees. According to the light guide with the diamond pattern effect and the atmosphere lamp adopting the technical scheme, through the newly-designed light guide with the diamond pattern effect, the inner side surface and the outer side surface of the light outlet band are designed to be diamond-shaped surfaces composed of a plurality of small planes 121, and after light emitted by LED lamp beads on a PCBA enters the light guide body from the light inlet band, the light emitted by the LED lamp beads on the PCBA is emitted to the light guide body through the diamond pattern effect. The outer side surface of the light emitting band can achieve the diamond light emitting effect with high enough brightness, and the optical aesthetic feeling and the science and technology feeling of the atmosphere lamp are improved; and moreover, the shape of the diamond texture can be clearly seen even in the extinguished state, so that the atmosphere lamp can be used as an interior decoration of an automobile in the extinguished state.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lighting equipment, and in particular to a diamond pattern effect light guide and an atmosphere lamp. Background Art

[0002] As an increasingly popular automotive interior component, ambient lighting can effectively enhance the sense of technology and luxury of the automotive interior, and is favored by more and more consumers. Therefore, more and more car models are beginning to add ambient lighting designs to their car interiors.

[0003] Linear ambient lights used for car interiors are mostly used as instrument panel ambient lights and door ambient lights, etc. Whether it is the existing hidden linear ambient lights or the existing direct linear ambient lights, at most one LED is set at each end of the light guide, resulting in a single light effect, which can only change color and brighten, without any three-dimensional effect, and it is impossible to achieve complex three-dimensional effects such as flowing water, resulting in a lack of sense of technology and high-end feeling.

[0004] In order to solve the above technical problems, the applicant has submitted Chinese patent applications CN217540539U and CN115158156A, which disclose a three-dimensional thick-walled light guide (equivalent to the inner lens of the present application) suitable for a three-dimensional linear atmosphere lamp. The design of a large-surface light-emitting three-dimensional effect greatly increases the width of the light-emitting band, so that it can easily achieve a width of centimeters. Combined with independent concentrators, each light guide unit can be independently lit, so that the light guide can present a three-dimensional luminous effect. In addition, by separately configuring RGB LEDs for each concentrator, the linear atmosphere lamp can achieve complex three-dimensional effects such as flowing water, rhythm, and color block changes, which greatly enhances the sense of technology and high-end of the linear atmosphere lamp.

[0005] In order to enhance the three-dimensional effect of the thick-walled light guide structure and overcome the problem of single color and insufficient contrast when used as a decorative part, the applicant also applied for Chinese patent CN219222199U, which discloses a thick-walled light guide with piano key effect (equivalent to the inner lens of this application), which not only ensures the light guiding effect, but also enhances the three-dimensional sense of the overall shape of the thick-walled light guide through the alternating design of the protruding and light-transmitting white key protrusions and the opaque black key baffles, forming the appearance effect of black and white piano keys with good aesthetics, and further enhances the overall aesthetics through the use of black and white contrasting color matching, which has a strong color contrast.

[0006] Based on the above two types of atmosphere lights, the applicant also wants to design an atmosphere light with a diamond effect to further enhance the beauty and technological sense of the atmosphere light effect.

[0007] See also Figure 1The applicant has designed a light guide, based on Chinese patent CN219222199U, in which the inner surface of the light-emitting strip 12 retains the design of the optical pattern group 111, and the outer surface of the light-emitting strip is a "diamond-shaped" surface composed of multiple small planes 121. However, after testing, after the light guide is lit, the diamond-like optical effect can not be seen, and only the striped optical pattern can be seen.

[0008] To do this, see Figure 2 The applicant improved the structure of the inner surface of the light-emitting strip 12 into a plane or inclined structure, and added a diffuse reflection structure such as leather grain on the inner surface of the light-emitting strip 12. However, after testing, the brightness of the light guide was very poor after it was lit, and most of the light was concentrated at the bottom of the light-emitting strip 12, that is, the area close to the diffuse reflection structure such as leather grain.

[0009] Solving the above problems has become a top priority. Utility Model Content

[0010] In order to solve the technical problem that it is difficult for existing light guides and atmosphere lamps to achieve satisfactory diamond optical effects, the utility model provides a diamond pattern effect light guide and an atmosphere lamp.

[0011] The technical solution is as follows:

[0012] A diamond pattern effect light guide comprises a long strip-shaped light guide body, wherein the light guide body comprises a light inlet band and a light outlet band arranged side by side along its width direction, and both side surfaces of the light outlet band in the thickness direction are composed of a plurality of small planes, and the angle between adjacent small planes is greater than 0° and less than 180°.

[0013] An atmosphere lamp comprises a lamp housing, a lamp shade, a PCBA and the above-mentioned diamond-patterned effect light guide, wherein the lamp shade is covered on the lamp housing to enclose an installation chamber, the PCBA and the diamond-patterned effect light guide are both installed in the installation chamber, and the PCBA is integrated with a plurality of LED lamp beads distributed along the length direction of a light-inlet strip, and the light emitting directions of the LED lamp beads are all toward the same side surface of the light-inlet strip.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The diamond pattern effect light guide and atmosphere light using the above technical solution, through the newly designed diamond pattern effect light guide, designs the inner and outer surfaces of the light output strip to be a "diamond-shaped" surface composed of multiple small planes 121. After the light emitted by each LED lamp bead on the PCBA enters the light guide body from the light input strip, the outer surface of the light output strip can achieve a diamond light-emitting effect with sufficiently high brightness, thereby enhancing the optical beauty and sense of technology of the atmosphere light; and, even when it is off, the shape of the diamond texture can be clearly seen, so that the atmosphere light can also be used as an interior decoration of the car when it is off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of one of the light guides in the prior art;

[0017] Figure 2 is a schematic diagram of the structure of another light guide in the prior art;

[0018] Figure 3 It is a cross-sectional view of the atmosphere lamp of the utility model;

[0019] Figure 4 This is a schematic diagram of the matching relationship between the diamond pattern effect light guide and PCBA of the utility model;

[0020] Figure 5 It is a structural schematic diagram of a diamond pattern effect light guide of the utility model from one viewing angle;

[0021] Figure 6 This is a schematic structural diagram of the diamond pattern effect light guide of the utility model from another perspective. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with embodiments and drawings.

[0023] Embodiment 1:

[0024] like Figure 5 and Figure 6 As shown, a diamond pattern effect light guide mainly comprises a light guide body 1 in a long strip shape. In this embodiment, the light guide body 1 is integrally formed of a light-transmitting plastic material, which not only has high structural strength but also has better luminous effect.

[0025] The optical waveguide body 1 includes a light input band 11 and a light output band 12 arranged side by side along its width direction. Both side surfaces of the light output band 12 in the thickness direction are composed of a plurality of small planes 121. Each small plane 121 is a planar structure. The angle between adjacent small planes 121 is greater than 0° and less than 180°, that is, both side surfaces of the light output band 12 in the thickness direction are diamond surface structures, wherein the inner side surface of the light output band 12 in the thickness direction serves as a reflective surface, that is, a diamond optical surface, and the outer side surface of the light output band 12 in the thickness direction serves as a light emitting surface.

[0026] Therefore, through the cooperation of the two side surfaces of the light-emitting strip 12 in the thickness direction, after the light enters the light guide body from the light-incoming strip, the outer surface of the light-emitting strip 12 can achieve a diamond luminous effect with a sufficiently high brightness, thereby enhancing the optical beauty and technological sense of the ambient light. Moreover, even in the off state, the diamond texture of the luminous surface can be clearly seen, so that the ambient light can also be used as an interior decoration of the car in the off state.

[0027] In this embodiment, a thick-walled light-guiding protrusion 122 is formed on one side surface of the light-emitting belt 12 in the thickness direction, wherein some facets 121 are distributed on the outer surface of the thick-walled light-guiding protrusion 122 and together constitute a diamond light-emitting surface, and the remaining facets 121 are distributed on one side surface of the light-emitting belt 12 away from the thick-walled light-guiding protrusion 122 and together constitute a diamond optical surface. The design provided can not only effectively enhance the three-dimensional sense of the light-guiding body 1, but also effectively increase the area of ​​the light-emitting surface, thereby enhancing the optical effect.

[0028] Furthermore, each facet 121 constituting the diamond optical surface is formed inwardly concavely on a side surface of the light output belt 12 away from the thick-walled light guide protrusion 122 , which can improve the stability of the installation of the light guide body 1 compared to the outward convex design.

[0029] Furthermore, the light emitting belt 12 has a reflective layer on the side surface away from the thick-walled light-guiding protrusion 122, that is, the surface of the diamond optical surface has a reflective layer. By adding a reflective layer, not only can the difference between the brightness and the dark area be reduced, the uniformity of the light emission be improved, but also the leakage of light can be reduced, thereby improving the brightness of the light emitting surface.

[0030] Furthermore, the reflective layer has a metal mirror effect, which can further enhance the optical effect of the light-emitting surface. In this embodiment, the reflective layer can be formed on the diamond optical surface by physical vapor deposition, electroplating and painting, which is stable and reliable. The reflective layer of this embodiment is preferably formed on the diamond optical surface by physical vapor deposition, which not only has better uniformity, but also is clean and environmentally friendly.

[0031] Furthermore, the surface of the light-inlet strip 11 has a light-mixing optical texture, so that the incident light can be better mixed and evenly distributed. In this embodiment, the light-mixing optical texture preferably adopts leather grain, which has a better light-mixing effect.

[0032] See also Figure 4 and Figure 5 The light-inlet belt 11 is divided into a plurality of light-inlet units along the length direction, and each light-inlet unit is protruded with a light-inlet expansion structure 111, and each light-inlet expansion structure 111 is located on the same side surface of the light-inlet belt 11, and the outer surface of the light-inlet expansion structure 111 is concave to form a light-inlet surface 111a with an arc structure. By providing the light-inlet expansion structure 111, each light-inlet expansion structure 111 corresponds to each LED lamp bead 41 one by one, thereby improving the light-evening effect and making the brightness of each position of the light-emitting surface more uniform.

[0033] Embodiment 2:

[0034] See also Figure 1 and Figure 2An atmosphere lamp comprises a lamp housing 2, a lamp shade 3, a PCBA 4 and a diamond-patterned effect light guide of Example 1. The lamp shade 3 covers the lamp housing 2 and encloses an installation chamber. The PCBA 4 and the diamond-patterned effect light guide are both installed in the installation chamber. The PCBA 4 is integrated with a plurality of LED lamp beads 41 distributed along the length direction of a light-inlet strip 11. The light-emitting directions of the LED lamp beads 41 are all toward the same side surface of the light-inlet strip 11, that is, the light-emitting surfaces of the LED lamp beads 41 correspond one-to-one to the light-inlet surfaces 111a.

[0035] Therefore, each light input unit can be lit independently, and each LED lamp bead 41 is an RGB LED, so that the atmosphere light can achieve complex three-dimensional effects such as flowing water, rhythm, and color block changes, which greatly enhances the technological sense and high-end sense of the atmosphere light.

[0036] In this embodiment, the light guide body 1, the lamp housing 2 and the lamp shade 3 are reliably fixed by a locking structure, so that when used on low-end models, the PCBA 4 and the wiring harness can be eliminated and the lamp can be directly used as a linear decorative strip, without the need to open a new interior panel or a new decorative part, which not only greatly reduces the cost, but also reduces the difficulty of managing parts.

[0037] In this embodiment, the lampshade 3 includes a light-transmitting panel and a light-shielding panel integrally formed by a two-color injection molding process, the light-transmitting panel is made of a light-transmitting plastic material, the light-emitting belt 12 is located on the inner side of the light-transmitting panel, the light-shielding panel is made of a light-shielding plastic material, and the PCBA 4 is located on the inner side of the light-shielding panel. The light-shielding panel is made of a light-shielding plastic material, which can hide the ugliness of the internal components, further enhance the overall appearance, and thus play a better decorative role.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A diamond effect light guide, comprising a light guide body (1) in the form of an elongated strip, the light guide body (1) comprising a light inlet band (11) and a light outlet band (12) arranged side by side along the width direction thereof, characterized in that: Both side surfaces of the light emitting strip (12) in the thickness direction are composed of a plurality of small planes (121), and the angle between adjacent small planes (121) is greater than 0° and less than 180°.

2. The diamond effect light guide according to claim 1, characterized in that: A thick-walled light-guiding protrusion (122) is formed on one side surface of the light-emitting belt (12) in the thickness direction, wherein some small planes (121) are distributed on the outer surface of the thick-walled light-guiding protrusion (122) and together constitute a diamond light-emitting surface, and the remaining small planes (121) are distributed on a side surface of the light-emitting belt (12) away from the thick-walled light-guiding protrusion (122) and together constitute a diamond optical surface.

3. The diamond effect light guide according to claim 2, characterized in that: Each of the small planes (121) constituting the diamond optical surface is formed inwardly concavely on a surface of a side of the light-emitting band (12) away from the thick-walled light-guiding protrusion (122).

4. The diamond effect light guide according to claim 2 or 3, characterized in that: A reflective layer is provided on the surface of the light emitting strip (12) on one side away from the thick-walled light guiding protrusion (122).

5. The diamond effect light guide according to claim 1, characterized in that: The surface of the light intake strip (11) has a light-mixing optical texture.

6. The diamond effect light guide according to claim 5, characterized in that: The light-mixing optical texture is dermatoglyphics.

7. The diamond effect light guide according to claim 1 or 5 or 6, characterized in that: The light intake band (11) is divided into a plurality of light intake units along the length direction, each light intake unit is provided with a light intake expansion structure (111) protruding therefrom, each light intake expansion structure (111) is located on the same side surface of the light intake band (11), and the outer surfaces of the light intake expansion structures (111) are all concave to form a light intake surface (111a) with an arc surface structure.

8. An atmosphere lamp, characterized in that: The invention comprises a lamp housing (2), a lamp shade (3), a PCBA (4) and a diamond-patterned effect light guide according to any one of claims 1 to 7, wherein the lamp shade (3) covers the lamp housing (2) and encloses an installation chamber, wherein the PCBA (4) and the diamond-patterned effect light guide are both installed in the installation chamber, and wherein the PCBA (4) is integrated with a plurality of LED lamp beads (41) distributed along the length direction of a light inlet strip (11), and the light emitting directions of the LED lamp beads (41) are all toward the same side surface of the light inlet strip (11).

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