CN211146370U

CN211146370U - Headlamp projection type lighting system

Info

Publication number: CN211146370U
Application number: CN201922144902.3U
Authority: CN
Inventors: 王天寅
Original assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Current assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-31
Anticipated expiration: 2029-12-04

Abstract

The utility model provides a head-light throws formula lighting system, including passing light emitting source 1a, distance light emitting source 1b, passing light emitting source 1c, reflection system, thick lens, reflection system is including the plane of reflection 2a that has supplementary passing light function, plane of reflection 2c and supplementary distance light function's plane of reflection 2b, plane of reflection 2a, plane of reflection 2b, plane of reflection 2c from left to right connects gradually and forms wholly, light is by passing light emitting source 1a, distance light emitting source 1b, passing light emitting source 1c sends, carry out primary reflection with light by far and near light reflection system, focus plane position at thick lens assembles, later throw light through thick lens. The system can integrate the functions of far light and near light on the basis of meeting the modeling requirement of the whole vehicle. The auxiliary short-distance light function lightens the light emitting surface of the whole module, so that a better visual effect is realized; meanwhile, the function of far and near light can be realized by using fewer optical elements, so that the manufacturing cost is reduced.

Description

Headlamp projection type lighting system

Technical Field

The utility model relates to an automotive lighting field especially relates to a head-light projection formula lighting system.

Background

With the increasing development of the automotive headlight models and the automotive lamp technology, the automotive manufacturers are demanding increasingly smaller longitudinal openings for the headlights, and moreover, it is generally also required that the low-beam function can be present in all modules in order to achieve a fully lit low-beam effect.

According to the prior art, the lighting mode and the light type area distribution of the low-beam part need to be considered when designing the high beam module, and the design of the light shielding plate needs to be considered under appropriate conditions to realize the compensation of the low beam; more generally, the light source of the near-light part is lighted without considering the actual lighting regulation effect, so that the regulation cannot be met or even if the regulation can be met, other optical devices are designed for the regulation, and the device forming the module and the processing and manufacturing cost are not low. It becomes important to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a head-light projection formula lighting system, this system can be integrated as an organic whole with far and near light function on the basis that accords with whole car molding requirement. The auxiliary short-distance light function can lighten the light emitting surface of the whole module, so that a better visual effect is realized; the low beam lighting law can be supplemented correspondingly. And simultaneously, the utility model discloses simplify in optical system's design, can realize the function of distance light through using less optical element to reduce entire system's manufacturing cost.

The utility model provides a head-light throws formula lighting system, including passing light emitting source 1a, distance light emitting source 1b, passing light emitting source 1c, reflection system 2, thick lens 3, reflection system 2 is including the plane of reflection 2a that has supplementary passing light function, plane of reflection 2c and the plane of reflection 2b of supplementary distance light function, plane of reflection 2a, plane of reflection 2b, plane of reflection 2c from left to right connects gradually and forms wholly, light is by passing light emitting source 1a, distance light emitting source 1b, passing light emitting source 1c sends, carry out primary reflection with light via far and near light reflection system 2, and assemble in thick lens 3's focal plane position, later throw light through thick lens 3.

The further improvement lies in that: the thick lens is made of transparent plastic materials, has a longitudinal opening size not higher than 30mm and can collect reflected light rays from the reflection system.

The further improvement lies in that: the reflecting surface of the reflecting system is made of plastic materials, and the reflecting efficiency is guaranteed by processing the surface through a coating process.

The further improvement lies in that: the low-beam light emitting source 1a and the low-beam light emitting source 1c have the same light emitting characteristics including size, brightness and light emitting angle; the high beam light emitting source 1b has a specifically set size, brightness and light emitting angle; the low beam light emission source 1a, the low beam light emission source 1c, and the high beam light emission source 1b are positioned in the same horizontal plane.

The further improvement lies in that: the surfaces of the reflecting surface 2a and the reflecting surface 2c are added with fine lines through texture structure process treatment, and chamfer treatment is connected between the reflecting surfaces.

The utility model has the advantages that: the module can integrate the functions of far light and near light on the basis of meeting the modeling requirement of the whole vehicle. The auxiliary short-distance light function can lighten the light emitting surface of the whole module, so that a better visual effect is realized; the low beam lighting law can be supplemented correspondingly. And simultaneously, the utility model discloses simplify in optical system's design, can realize the function of far and near light through using less optical element, saved the light screen to reduce entire system's manufacturing cost. By matching the low-beam light-emitting sources 1a, the low-beam light-emitting sources 1c, the high-beam light-emitting sources 1b and the reflection system 2 with the thick lens 3, a supplementary effect on high-beam illumination and a supplementary effect on the brightness of the regulation points in the specific region of the low beam are achieved. The supplementary function of the optical system does not need to specially design the light shielding plates of other main lighting systems, and does not need to perform optical treatment on the surfaces of thick lenses of other main lighting systems, so that the processing and manufacturing cost is saved.

Drawings

Fig. 1 is a schematic view of a complete optical system of the present invention.

Fig. 2 is a schematic diagram of the reflection system of the present invention integrating far and near lights.

Fig. 3 is a schematic view of the internal light of the optical system of the present invention.

Fig. 4 is a left side schematic view of the short-distance beam of the present invention.

Fig. 5 is a right side schematic view of the near light of the present invention.

Fig. 6 is a schematic view of the high beam of the present invention.

Wherein, 1a, 1b, 1c are light emitting sources, 2 is a reflection system, 2a, 2b, 2c are reflection surfaces, 2a-1, 2a-2 are boundary light rays from the

reflection surface

2a, 2b-1 and 2b-2 are boundary light rays from the

reflection surface

2b, 2c-1 and 2c-2 are boundary light rays from the

reflection surface

2c, 2a-11, 2a-21 are left boundary light rays after passing through the

thick lens

3, 2c-11, 2c-21 are right boundary light rays after passing through the

thick lens

3, 2b-11, 2b-21 are boundary light rays after passing through the

thick lens

3, and 3 is a thick lens.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in detail with reference to the following embodiments, which are only used for explaining the present invention and do not limit the protection scope of the present invention.

As shown in fig. 1-6, the present embodiment provides a headlight projection type lighting system, which includes a low beam light source 1a, a high beam light source 1b, a low beam light source 1c, a reflection system 2, and a thick lens 3, wherein the reflection system 2 includes a reflection surface 2a with a low beam function, a reflection surface 2c, and a reflection surface 2b with a high beam function, the

reflection surfaces

2a, 2b, and 2c are sequentially connected from left to right to form a whole, and the low beam light source 1a, the low beam light source 1c, the high beam light source 1b, the reflection system 2, and the thick lens 3 are matched to realize a supplementary effect on high beam lighting and a supplementary effect on brightness of regulation points in a low beam specific region. The thick lens 3 is made of transparent plastic material, and the thick lens 3 has a longitudinal opening size not higher than 30mm and can collect the reflected light from the reflecting system 2. The reflecting surface of the reflecting system 2 is made of plastic materials, and the reflecting efficiency is guaranteed by processing the surface through a coating process. The low-beam light emitting source 1a and the low-beam light emitting source 1c have the same light emitting characteristics including size, brightness and light emitting angle; the high beam light emitting source 1b has a specifically set size, brightness and light emitting angle; the low beam light emission source 1a, the low beam light emission source 1c, and the high beam light emission source 1b are positioned in the same horizontal plane. The surfaces of the reflecting surface 2a and the reflecting surface 2c are added with fine lines through texture structure process treatment, and chamfer treatment is connected between the reflecting surfaces.

The system mainly comprises a low-beam light source 1a, a low-beam light source 1c, a high-beam light source 1b, a reflection system 2 and a thick lens 3. The low-beam light emitting source 1a and the low-beam light emitting source 1c are the same light emitting source, and are symmetrically arranged on the outermost side of the light source system to realize a uniform and balanced lighting effect. The light is emitted by the low-beam light emitting source 1a, the low-beam light emitting source 1c and the high-beam light emitting source 1b, is reflected once by the high-beam and low-beam light reflecting system 2, is converged at the focal plane position of the thick lens 3, and is then projected to the corresponding illumination position at a distance of 25m by the thick lens 3. The

reflection surfaces

2a and 2c are reflection surfaces for assisting low beams, are symmetrically provided on both left and right sides of the reflection system 2, and optically match the low beam

light emission sources

1a and 1 c. The reflecting surface 2b is designed as a reflecting surface for the auxiliary high beam, is placed centrally and is matched with the high beam light emission source 1 b.

The front projection widths of the reflecting surface 2a, the reflecting surface 2b and the reflecting surface 2c are equivalent, the horizontal distribution of the reflecting surfaces is a Bezier curve, and the Bezier curves are required to be optimized by the three reflecting surfaces according to different angles of the emergent light; meanwhile, the numerical distribution of the three reflecting surfaces also follows respective curves to control the distribution of the light in the vertical direction.

To facilitate machining to reduce manufacturing tolerances, the face-to-face connection requires the addition of a chamfer treatment. Wherein, because the reflecting surface 2a and the reflecting surface 2c are used for forming the supplementary near light, in order to improve the uniformity and avoid forming brighter stray light spots, the texture structure process treatment of fine lines is added on the surface.

Light rays 2a-1 and 2a-2 come from the low-beam light emitting source 1a and are reflected out through the reflecting surface 2a, and the reflected light rays form the left half part of auxiliary low-beam illumination through the thick lens 3 to form light rays 2a-11 and 2 a-21; light rays 2c-1 and 2c-2 come from the low-beam light-emitting source 1c and are reflected out by the reflecting surface 2c, and the reflected light rays form the right half part of the auxiliary low-beam illumination through the thick lens 3 to form light rays 2c-11 and 2 c-21; the light rays 2b-1 and 2b-2 come from the far-beam light emitting source 1b and are reflected by the reflecting surface 2b, and the reflected light rays form the main optical part of the auxiliary far beam through the thick lens 3 to form the light rays 2b-11 and 2 b-21. Through the design and layout of the optical surfaces of the reflecting surface 2a and the reflecting surface 2c, the light rays 2a-1 and 2a-2 and the light rays 2c-1 and 2c-2 respectively fill the thick lens 3 from the left side and the right side to the maximum extent, the optimal form is to completely fill the thick lens 3, when the far-light luminous source 1b is not lightened, relatively uniform optical distribution can be formed, the lighting effect is uniform when the far-light luminous source is observed from the right front of the optical system, and the phenomenon that a certain area of the lens is darkened can not occur. The light rays 2a-1, 2a-2 and the light rays 2c-1, 2c-2 only show marginal light rays from the reflecting surface 2a and the reflecting surface 2c, the actual light rays from the low-beam light-emitting source 1a and the low-beam light-emitting source 1c being uniformly enveloped in a spatial solid angle indicated by a dashed line in fig. 3. When the high beam light emitting source 1b is turned on, the space light takes the light rays 2b-1 and 2b-2 as the boundary to form a uniform light beam, and the uniform light beam is irradiated on the central area of the thick lens 3, and correspondingly forms a central bright spot of a high beam illumination part for compensation and performance improvement of the high beam illumination part.

Claims

1. A headlamp projection illumination system, characterized by: including passing light emitting source 1a, distance light emitting source 1b, passing light emitting source 1c, reflection system (2), thick lens (3), reflection system (2) are including the plane of reflection 2a that has supplementary passing light function, plane of reflection 2c and supplementary distance light function plane of reflection 2b, plane of reflection 2a, plane of reflection 2b, plane of reflection 2c from left to right connect gradually and form whole, the light is sent by passing light emitting source 1a, distance light emitting source 1b, passing light emitting source 1c, carry out primary reflection with light via far and near light reflection system (2), and converge in the focal plane position of thick lens (3), later throw light through thick lens (3).

2. A headlamp proj ection illumination system as set forth in claim 1, wherein: the thick lens (3) is made of transparent plastic materials, the thick lens (3) has a longitudinal opening size not higher than 30mm, and reflected light rays from the reflecting system (2) can be collected.

3. A headlamp proj ection illumination system as set forth in claim 1, wherein: the reflecting surface of the reflecting system (2) is made of plastic materials, and the reflecting efficiency is guaranteed by processing the surface through a coating process.

4. A headlamp proj ection illumination system as set forth in claim 1, wherein: the low-beam light emitting source 1a and the low-beam light emitting source 1c have the same light emitting characteristics, and the high-beam light emitting source 1b has a specific light emitting characteristic; the low beam light emission source 1a, the low beam light emission source 1c, and the high beam light emission source 1b are positioned in the same horizontal plane.

5. A headlamp proj ection illumination system as set forth in claim 1, wherein: the surfaces of the reflecting surface 2a and the reflecting surface 2c are added with fine lines through texture structure process treatment, and chamfer treatment is connected between the reflecting surfaces.