CN-121977178-A - Car lamp and car using same

CN121977178ACN 121977178 ACN121977178 ACN 121977178ACN-121977178-A

Abstract

The invention belongs to the technical field of car lamps, and particularly relates to a car lamp and a car using the car lamp, which at least comprise a light source assembly and an inner lens assembly arranged on the light emitting side of the light source assembly; the inner lens assembly at least comprises a first inner lens and a second inner lens which are sequentially arranged along the light emitting direction, wherein the light emitting surface of the first inner lens is provided with a pattern which is cut by multiple faces and is used for carrying out primary refraction and scattering on light rays emitted by the light source assembly, one outer surface of the second inner lens is provided with a crystal face and a micro optical array, the micro optical array comprises a plurality of micro optical structures which are formed on the crystal face and are continuously arranged, the light rays emitted by the light source assembly are scattered through refraction of the first inner lens and then are transmitted in the second inner lens, and an ordered patterned light effect is formed inside the second inner lens and on the light emitting surface of the second inner lens after the transmission, refraction, total reflection and/or diffraction of the micro optical array.

Inventors

LIU QIAOZHI
LIU LEI
YE LINYANG
LIU QING
ZHAO TONGYANG
ZHOU YUEZHANG

Assignees

常州星宇车灯股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260317

Claims (10)

1. A car lamp is characterized by at least comprising a light source assembly and an inner lens assembly arranged on the light emitting side of the light source assembly; The light source assembly comprises a light source assembly, an inner lens assembly, a lens assembly and a lens assembly, wherein the light source assembly at least comprises a first inner lens and a second inner lens which are sequentially arranged along a light-emitting direction, a pattern of multi-face cutting is arranged on a light-emitting surface of the first inner lens and is used for carrying out primary refraction and scattering on light rays emitted by the light source assembly, and a crystal face and a micro optical array are arranged on one outer surface of the second inner lens; Light rays emitted by the light source component are scattered through refraction of the first inner matching mirror and then are transmitted in the second inner matching mirror, and after transmission, refraction, total reflection and/or diffraction of the micro optical array, ordered patterning light ray effects are formed in the second inner matching mirror and the light emitting surface of the second inner matching mirror.
2. The vehicle lamp according to claim 1, wherein a part of the micro-optical structure is formed with a convex V-shaped groove centered on a regular ridge, and a part of the micro-optical structure is formed with a concave V-shaped groove centered on a regular ridge.
3. The vehicle lamp according to claim 2, wherein the angle between both sides of the V-shaped groove is designed to be 80 ° to 150 ° to satisfy the condition that light is totally reflected inside.
4. A vehicle lamp according to claim 3, wherein the ridge line of the micro-optical structure is constructed as a sharp fine structure for generating a straight-edge diffraction phenomenon under irradiation of light to form diffraction fringes with alternate brightness and darkness, thereby presenting a regular and ordered radial light inside the second inner lens.
5. The vehicle lamp according to any one of claims 1 to 4, wherein the second inner lens is further provided with a first partial reflection layer; The first partial reflecting layer and the micro optical array are distributed on the same or different side end surfaces of the second internal matched mirror.
6. The vehicle lamp of claim 5, further comprising a third endoscope disposed in an optical path between the first endoscope and the second endoscope; At least one surface of the third inner lens is provided with a micro-light-transmitting coating, and the other surface of the third inner lens is provided with a second partial reflecting layer.
7. The vehicle lamp of claim 6, wherein the second partially reflective layer is spatially offset from the first partially reflective layer to form a stereoscopic impression.
8. The vehicle lamp according to claim 6, wherein the third inner lens is provided with a micro-light-transmitting coating, and a plurality of laser etching holes are formed in the surface of the micro-light-transmitting coating, and the laser etching holes penetrate through the micro-light-transmitting coating and are used for transmitting light and generating incision diffraction at hole boundaries to form a halation effect.
9. The vehicle lamp according to any one of claims 1-4, wherein the light source assembly comprises at least a PCB and a plurality of LED light emitters arranged in an array on the PCB.
10. A vehicle comprising at least a lamp according to claim 1 to 9.

Description

Car lamp and car using same Technical Field The invention belongs to the technical field of car lamps, and particularly relates to a car lamp and a car using the car lamp. Background With the intelligent and personalized development of the automobile industry, the automobile lamp does not only meet the basic illumination and signal indication functions, but also becomes a core carrier for highlighting the design aesthetics of the automobile and improving the differentiation and added value of products. The LED light source is widely popularized in the field of car lamps, provides a technical basis for innovation of optical effects of the car lamps, is continuously upgraded in pursuit of fashion, uniqueness and technological sense of the car lamp lighting effects in industry, and is developed into a plurality of optical effects based on surface refraction and reflection principles from initial internal surface pattern design, uniform light internal matching optimization, and diamond star river effect presentation, and the car lamp exterior signal function and the interior atmosphere function become important components of car modeling design on the premise of meeting the requirement of regulations. In order to pursue a better and brighter visual effect, the industry is beginning to adopt a multi-face cut diamond pattern or a star river effect structure. The light is guided through the light-in surface of a transparent thick-wall piece (such as PMMA or PC material), and after being transmitted inside, the light is refracted and reflected through a carefully designed microscopic geometry (such as a diamond section) on the light-out surface, so that the light has a flickering and bright visual experience under different visual angles. For example, a lampshade structure with a star-river lighting effect disclosed in CN222377920U is a typical representative of such a technical route, which realizes a surface-enhanced bright effect by a specific pattern. Although the prior art is continuously pushing the advancement of car light visual effects, a series of technical bottlenecks and engineering challenges are still faced when seeking a deeper, richer technology-sensitive and dynamically changing "immersive" optical experience, which is specifically expressed as follows: First, visual effects stay on the "surfacing" and "imaging of the interior space" is difficult to achieve. In the prior art, no matter the uniform light is internally matched or the diamond star river effect is achieved, the light is finally emitted through the macroscopic or microscopic structures (such as a reflecting surface and a refraction pattern) on the surface of the thick-wall part. The visual effect is that the visual effect is attached to the surface of an object, and the visual effect belongs to a lighting mode with a molded surface. Although diamond effect can bring bright sense through multi-angle refraction, observer can't intuitively feel three-dimensional ' light picture ' formed by orderly spreading and interweaving light in the inner space of transparent thick wall. This crossing of the "surface effect" to the "interior space imaging" is a blank area that the prior art cannot reach. Secondly, the internal ordered light path has poor regulation and control capability and poor mass production feasibility. Theoretically, defects can be made inside the transparent material by laser engraving and other techniques, thereby realizing internal light scattering. However, the repeated verification of practical research and development shows that the 'inner carving scheme' has the fatal defects that scattering points generated by inner carving are difficult to accurately control the propagation direction of light rays, a large amount of unpredictable stray light is extremely easy to form, the final lighting effect is fuzzy and turbid, the radial or linear light effect which is expected by design cannot be formed, the laser inner carving process is low in efficiency and high in cost, uncontrollable physical defects such as blackening, yellowing and the like are easy to generate in a transparent material, the product yield and the optical performance are seriously influenced, and the engineering feasibility of mass production is not realized. Third, the expressive force of the specific visual effect under different environments is insufficient. According to the technical scheme of the star river effect represented by CN222377920U, the outside light is reflected by the aluminized layer to present a bright star point in the daytime, but at night, after the outside ambient light disappears, the opaque aluminized points cannot be effectively lightened, so that the star river effect is dull and dull at night, and the effect is greatly discounted. Fourth, the uniformity and statics of the optical effect. The visual effect that can be exhibited by prior art solutions is relatively cured. The diamond effect mainly depends on the change of the observat