CN216521413U

CN216521413U - Optical microstructure aspheric lens for headlamp

Info

Publication number: CN216521413U
Application number: CN202123453655.9U
Authority: CN
Inventors: 姚祖义; 金小伟; 李耀春
Original assignee: Zhejiang Huaju Optical Co ltd
Current assignee: Zhejiang Huaju Optoelectronics Co.,Ltd.
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-13
Anticipated expiration: 2031-12-31

Abstract

The utility model provides an optical microstructure aspheric lens for a headlamp, aiming at the defects that the headlamp in the prior art can not meet the illumination requirement and is easy to cause dazzling feeling of drivers in opposite lanes, belonging to the technical field of lenses for automobile headlamps and comprising an installation part and a light transmission part which are fixedly connected with each other; the surface of the light-transmitting part comprises a main lens area, the left side and the right side of the main lens area are respectively provided with a side lens area, the two side lens areas are symmetrically distributed, the main lens area comprises an upper lens area and a lower lens area, the lower lens area is positioned below the upper lens area, the upper lens area is convex relative to the lower lens area, and the lower lens area is convex relative to the side lens areas; micro-structure lenses are uniformly distributed on the surface of the side lens area. According to the utility model, the light-transmitting parts are arranged in different-thickness partitions, so that the illumination quality of the lane where the vehicle is located can be improved, the influence on the opposite lane is reduced, and the driver of the opposite lane is not easy to dazzle.

Description

Optical microstructure aspheric lens for headlamp

Technical Field

The utility model belongs to the technical field of lenses for automobile headlamps, and particularly relates to an optical microstructure aspheric lens for a headlamp.

Background

The headlamp is a lamp for illuminating a road ahead when an automobile runs at night, and the light distribution design of the headlamp is a key factor influencing the illumination quality and effect. The solenoid valve structure has been increased on the light screen to the integrative head-light of present distance light for realize the switching of distance light, owing to use the light screen as the effect of sheltering from, when using the passing light, the level is cut to line and 15 degrees and is cut the light above the line and all sheltered from, and its light energy is nearly zero, consequently can not satisfy ECE or GB standard to the regulation of distance light shape. Meanwhile, in order to ensure the illumination effect of the existing headlamp, the brightness of the headlamp is large, and the illumination range is wide, so that the light beam is dazzling, dazzling of drivers in opposite lanes is easily caused, and the driving safety performance is affected. If the illumination brightness of the headlamp is reduced, the illumination quality is affected, and the driving at night is not facilitated.

Disclosure of Invention

Aiming at the defects that the headlamp in the prior art cannot meet the requirement of illumination and is easy to cause dazzling of drivers in opposite lanes, the utility model provides the optical microstructure aspheric lens for the headlamp, which can ensure the illumination quality and also can prevent the drivers in the opposite lanes from dazzling.

The utility model aims to be realized by the following technical scheme: an optical microstructure aspheric lens for a headlamp comprises a mounting part and a light transmission part which are fixedly connected with each other, wherein the peripheral edge of the mounting part is protruded relative to the peripheral edge of the light transmission part; the surface of the light-transmitting part comprises a main lens area, the left side and the right side of the main lens area are respectively provided with a side lens area, the two side lens areas are symmetrically distributed, the main lens area comprises an upper lens area and a lower lens area, the lower lens area is positioned below the upper lens area, the upper lens area protrudes relative to the lower lens area, the lower lens area protrudes relative to the side lens area, and the area of the upper lens area is larger than that of the lower lens area; micro-structural lenses are uniformly distributed on the surface of the side lens area. Among the above-mentioned scheme, the differentiation in main lens district and side lens district can make to pass main lens district light comparatively concentrated, has guaranteed self vehicle to the lighting quality in place lane, and the light that passes side lens district can produce folding and reflection under micro-structure lens's effect, makes the illumination that passes side lens district more even, shines light on other lanes or subtend lane will be more even, makes subtend lane driver be difficult for producing dazzling sense. The upper lens area and the lower lens area are combined, so that the requirements of ECE or GB standards on the shape of high and low beams and the illuminance of each light distribution test point can be met while the high and low beams are switched.

Preferably, the width of the main lens region is greater than one-half of the total width of the light-transmitting portion. The arrangement can ensure that the width of the area with concentrated light is large, so that the illumination quality of the lane where the vehicle is located is good, if the proportion of the width of the main lens area to the total width of the light transmission part is small, the width of the area with concentrated light is small, and the illumination quality of the lane where the vehicle is located is poor.

Preferably, the upper lens region has a longitudinal length twice that of the lower lens region. The applicant finds that under the condition, the headlamp has excellent lighting effect when the headlamp switches the distance light and the near light.

Preferably, the mounting portion is further fixedly provided with a front protrusion, the front protrusion and the light transmission portion are respectively located at two sides of the mounting portion, and the peripheral edge of the mounting portion protrudes relative to the peripheral edge of the front protrusion. The arrangement of the front convex part can enable light rays to be more concentrated in the main lens area, and the illumination brightness of the main lens area is improved.

Preferably, the side of the front convex part opposite to the mounting part is aspheric.

Preferably, the surfaces of the upper lens region and the lower lens region are provided with a dot pattern. The dot patterns can make the far-beam illumination value more uniform, and greatly improve the driving safety.

Preferably, the mounting portion is provided with a positioning opening. The positioning port can be arranged to position the automobile door lock when the automobile door lock is installed on an automobile, and installation is convenient.

Preferably, the micro-structural lens is a spherical lens, and the diameter range of the micro-structural lens is 0.03-0.6 mm. Within the range, after the light rays pass through the micro-structure lens to be folded and reflected, the light is softer and more uniform, so that drivers of opposite lanes are not easy to dazzle, and the anti-dazzle function is excellent.

Preferably, the lower lens region protrudes to a thickness in a range of 0.5 to 0.8mm with respect to the side lens region, and the upper lens region protrudes to a thickness in a range of 0.3 to 0.5mm with respect to the lower lens region. Within this range, the headlamp has an excellent illumination effect when switching between the high and low beams.

Compared with the prior art, the utility model has the following beneficial effects: the utility model has simple integral structure, can improve the illumination quality of the vehicle to the lane by arranging the light transmission parts in different thickness zones, reduces the influence on the opposite lane, ensures that drivers of the opposite lane are not easy to generate dazzling feeling, and can meet the requirements of ECE or GB standards on the far and near light shapes and the illumination of each light distribution test point while realizing the switching of far and near light.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

the labels in the figure are: 1. mounting part, 2, light-transmitting part, 3, main lens region, 4, side lens region, 5, micro-structure lens, 6, upper lens region, 7, lower lens region, 8, dot pattern, 9, front convex part, 10 and positioning opening.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings to which:

example 1

As shown in fig. 1, an optical microstructure aspheric lens for a headlamp includes a mounting portion 1 and a light-transmitting portion 2 fixedly connected to each other, wherein a peripheral edge of the mounting portion 1 is protruded relative to a peripheral edge of the light-transmitting portion 2; the surface of the light-transmitting part 2 comprises a main lens area 3, the left side and the right side of the main lens area 3 are respectively provided with a side lens area 4, the two side lens areas 4 are symmetrically distributed, and the width of the main lens area 3 is larger than one half of the total width of the light-transmitting part 2. Micro-structure lenses 5 are uniformly distributed on the surface of the side lens area 4, the micro-structure lenses 5 are spherical lenses, and the diameter range of the micro-structure lenses 5 is 0.03-0.6 mm.

The main lens area 3 comprises an upper lens area 6 and a lower lens area 7, the lower lens area 7 is positioned below the upper lens area 6, the upper lens area 6 is convex relative to the lower lens area 7, and the thickness of the convex part ranges from 0.3 mm to 0.5 mm. The lower lens region 7 is convex relative to the side lens regions 4 and the thickness of the convex portion ranges from 0.5mm to 0.8mm, the area of the upper lens region 6 is larger than that of the lower lens, and the longitudinal length of the upper lens region 6 is twice that of the lower lens region 7. The surfaces of the upper lens area 6 and the lower lens area 7 are provided with dotted patterns 8.

The installation department 1 is last still to be fixed and is equipped with preceding convex part 9, and the side that preceding convex part 9 back to installation department 1 is the aspheric surface, and preceding convex part 9 and printing opacity portion 2 are located installation department 1 both sides respectively and installation department 1 border all around is for preceding convex part 9 border protrusion all around. The edge of the installation part 1 is provided with a positioning opening 10 which penetrates through the front end and the rear end of the installation part 1.

The front end of the light source is arranged on the headlamp of the vehicle, the positioning opening 10 is used for positioning and mounting, during lighting, light rays emitted by the light source firstly pass through the front convex part 9, the front convex part 9 refracts the light rays, and the light rays can be concentrated, so that the light rays irradiated from the main lens area 3 are brighter, the light condensation effect can be improved, and the lighting effect on a lane where the vehicle is located is improved. And the light that passes side lens district 4 can produce folding and reflection under micro-structure lens 5's effect, and light reaches the grading effect that accords with the ELE standard, is showing and is improving luminousness and luminance output's homogeneity, shines light on other lanes or the opposite direction lane will be more even, makes the driver of opposite direction lane be difficult for producing dazzling sense to can promote vehicle driving's security. The main lens area 3 is divided into an upper lens area 6 and a lower lens area 7 with different thicknesses, and the upper lens area 6 and the lower lens area 7 are combined to meet the requirements of ECE or GB standards on the high and low beam light shape and the illumination of each light distribution test point when the headlamp is switched between high and low beams.

It is to be understood that in the claims, specification of the utility model, all "including … …" are to be interpreted in an open-ended sense, i.e. in a sense equivalent to "including at least … …", and not in a closed sense, i.e. in a sense not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. An optical microstructure aspheric lens for a headlamp is characterized by comprising a mounting part (1) and a light transmission part (2) which are fixedly connected with each other, wherein the peripheral edge of the mounting part (1) is protruded relative to the peripheral edge of the light transmission part (2); the surface of the light-transmitting part (2) comprises a main lens area (3), the left side and the right side of the main lens area (3) are respectively provided with a side lens area (4), the two side lens areas (4) are symmetrically distributed, the main lens area (3) comprises an upper lens area (6) and a lower lens area (7), the lower lens area (7) is positioned below the upper lens area (6), the upper lens area (6) protrudes relative to the lower lens area (7), the lower lens area (7) protrudes relative to the side lens area (4), and the area of the upper lens area (6) is larger than that of the lower lens; micro-structure lenses (5) are uniformly distributed on the surface of the side lens area (4).

2. The optical microstructure aspherical lens for a headlamp according to claim 1, wherein the width of the main lens region (3) is greater than one-half of the total width of the light-transmitting portion (2).

3. The optical microstructure aspherical lens for a headlamp as defined in claim 1, wherein the upper lens region (6) has a longitudinal length twice as long as that of the lower lens region (7).

4. The optical microstructure aspheric lens for the headlamp according to claim 1, wherein a front convex part (9) is further fixedly arranged on the mounting part (1), the front convex part (9) and the light transmission part (2) are respectively positioned at two sides of the mounting part (1), and the peripheral edge of the mounting part (1) is protruded relative to the peripheral edge of the front convex part (9).

5. The aspherical lens for an optical microstructure of a headlamp as defined in claim 4, wherein the side of the front convex portion (9) facing away from the mounting portion (1) is aspherical.

6. Optical microstructure aspherical lens for head light according to claim 1, characterized in that the surface of the upper lens area (6) and the lower lens area (7) is provided with a dot pattern (8).

7. The optical microstructure aspherical lens for a headlamp according to claim 1, wherein a positioning opening (10) is provided on the mounting portion (1).

8. The optical microstructure aspheric lens for a headlamp according to claim 1, characterized in that the microstructure lens (5) is a spherical lens, and the diameter of the microstructure lens (5) is in the range of 0.03-0.6 mm.

9. The aspherical lens with optical microstructure for head lamp according to claim 1, wherein the lower lens region (7) is protruded with a thickness ranging from 0.5 to 0.8mm with respect to the side lens region (4), and the upper lens region (6) is protruded with a thickness ranging from 0.3 to 0.5mm with respect to the lower lens region (7).