CN215411717U - Vehicle signal lamp structure and vehicle daytime running lamp - Google Patents

Abstract

The application provides a vehicle signal lamp structure, contains leaded light spare, two light source modules and collimating lens. The light guide member is provided with a light outlet surface which is in a strip shape, a light inlet surface which is positioned at two sides of the light outlet surface, and a light guide surface structure which is positioned below the light outlet surface, wherein the light guide surface structure gradually inclines upwards from one side of the light inlet surface to the middle part of the light guide member, and the light guide surface structure comprises a plurality of light guide structures formed by V-shaped microstructures. The light source module is arranged on the light incident surface of the light guide piece. The light incident surface of the collimating lens is positioned on the light emergent surface of the light guide member. The light source received by the light incident surface of the light guide member is reflected by the light guide surface structure and then emitted towards the light emitting surface, and then the light is collimated by the collimating lens and then emitted. Even the vehicle signal lamps and lanterns of this application adopt the sidelight source, also can provide the linear light type of sufficient luminous intensity, satisfy the situation of use.

Description

Vehicle signal lamp structure and vehicle daytime running lamp

Technical Field

The application relates to a vehicle signal lamp structure with a side light source, which is used for providing a long-strip light type.

Background

In order to maintain a constant light intensity, the long strip-shaped vehicular lamp, for example, taiwan TW202024522, mostly arranges a plurality of light source units in a linear manner to ensure that the positions of the segments of the long strip-shaped lamp can satisfy the usage situation, which also means that a plurality of light sources must be added according to the length of the lamp.

Another long strip-shaped vehicular lamp employs a side light source, and in patent document CN102818203A as an example, the light source is disposed at a side of a long strip-shaped light guide body, and light rays can be emitted toward a long strip-shaped light emitting surface after being reflected inside the light guide body. However, since the light is totally reflected inside the light guide, the light at a specific angle is reflected by the microstructures behind the light guide to the light exit surface in front of the light guide, and the light distribution at each position of the strip cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will be solved provides a vehicle signal lamps and lanterns structure, contains leaded light spare, two light source modules and collimating lens. The light guide member has a light emergent surface in a strip shape, a light incident surface positioned at two sides of the light emergent surface, and a light guide surface structure positioned below the light emergent surface and gradually inclined upwards from one side of the light incident surface to the middle part of the light guide member. The light guide surface structure comprises a light guide structure formed by a plurality of V-shaped microstructures, and light rays received by the light inlet surface are reflected by the light guide surface structure and then emitted towards the light outlet surface. The light source modules are respectively arranged on the light incident surface far away from the two sides of the light guide piece. The extending direction of the collimating lens is the same as the extending direction of the light-emitting surface of the light-guiding member, the light-entering surface of the collimating lens is aligned with the light-emitting surface of the light-guiding member, and the light emitted from the light-emitting surface of the light-guiding member is collimated and then emitted.

Even the vehicle lamp of this application adopts the sidelight source, also can provide sufficient luminous intensity, satisfies the situation of use. Besides, the volume of the lamp can be reduced.

Further, the contour of the collimator lens in the extending direction is substantially the same. The longitudinal section of the light guide part is slightly in two symmetrical wedge shapes.

Furthermore, the light sources provided by the light source modules directly enter the light incident surface, and part of the light rays emitted by the light source modules are reflected in the light guide member at least twice. The light guide member has a plurality of light source modules at the light incident surface, and the light source modules are different from the light emergent surface of the light guide member in distance. To provide sufficient light intensity.

Furthermore, different positions of the light guide surface structure are provided with the V-shaped microstructures with different distribution densities, so that the light intensity of different length direction positions can be adjusted.

The application also provides a daytime running light for the vehicle, which comprises the vehicle signal lamp structure.

Other features and embodiments of the present application will be described in detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a signal lamp structure for a vehicle;

FIG. 2 is an enlarged side view of the vehicle signal light structure;

FIG. 3 is a schematic view of the internal light path of the light guide of the vehicular signal lamp structure;

FIG. 4 is a schematic diagram of the internal optical path of a conventional elongated light guide;

FIG. 5 is another schematic view of the internal light path of the light guide;

FIG. 6 is a schematic diagram of the internal optical path of a collimating lens;

FIG. 7 is a schematic view of the viewing direction of the vehicular signal lamp structure;

FIG. 8 is a diagram of the visual simulation diagram effect of FIG. 7;

FIG. 9 is a schematic diagram of the light intensity simulation direction of the vehicular signal lamp structure;

fig. 10 and 11 are light intensity distribution diagrams of the light intensity simulation of fig. 9 in the horizontal direction and the vertical direction, respectively.

Description of the symbols

20,40: light guide member

21,41,51: light incident surface

22,42,52: light emitting surface

23: side plate

25: light guide surface structure

251: v-shaped microstructure

30: light source module

301,302,303: LED chip

50: collimating lens

L1, L2, L3, L4: light ray

Detailed Description

The positional relationship described in the following embodiments includes: the top, bottom, left and right, unless otherwise indicated, are based on the orientation of the elements in the drawings.

Referring to fig. 2, the positive direction of the Z direction is the front direction, the Y direction is the extending direction of the linear car light, and the X direction is the width of the car light.

In the present embodiment, as shown in fig. 2, a side light source (light source module 30) is adopted, the light source is converted into a linear light source through a light guide 20, and then the light is focused and concentrated within the range required by the regulations through a collimating lens 50. The lamp structure can also be applied to other types of lamps for vehicles, such as dipped headlight, turn signal, position light, tail light, brake light, backup light or decorative lamp, but not limited thereto.

Referring to fig. 1 and fig. 2, a lamp structure is shown, which includes a light guide 20, at least two light source modules 30, and a collimating lens 50. The light guide 20 is in a long strip shape to correspond to the linear light type, and the upper side surface of the light guide 20 is a light emitting surface 22. The side surfaces of the left and right sides (Y-axis direction) of the light guide 20 are light incident surfaces 21, and the light incident surfaces 21 are substantially perpendicular to the light emitting surfaces 22.

The side surface below the light guide 20 is a light guide surface structure 25, which is a plane perpendicular to the light emitting direction relative to the light emitting surface 22, the light guide surface structure 25 is an inclined surface, one end of the inclined surface is connected to the profile below the light incident surface 21, and the other end extends upward toward the middle portion of the light guide 20, so that the longitudinal section of the light guide 20 is approximately in two symmetrical wedge shapes with mutually contacted tips. In addition, the light guide structure 25 is formed by a plurality of V-shaped microstructures 251 and inclined planes, the tips of the V-shaped microstructures 251 face upward, and the side plates 23 are attached to the side surfaces of the front and rear (X-axis direction) sides of the light guide 20 to prevent lateral light leakage.

The light source modules 30 are respectively disposed on the light incident surface 21 away from the two sides of the light guide 20, and the light emitting surface 22 of the light source module is directly attached to the light incident surface 21, so that the light source directly enters the light guide 20. It should be noted that the cross section of the light guide 20 is trapezoidal, and each light incident surface 21 of the light guide 20 is provided with a plurality of LED chips 301,302, 303. The distances between the LED chips 301,302,303 and the light-emitting surface 22 of the light guide 20 are different, i.e. the distances in the Z direction are different, so as to provide sufficient light sources.

Referring to fig. 3, after the light received by the light incident surface 21 of the light guide 20 is reflected by the light guide structure 25, the light is emitted toward the light emitting surface 22, and no matter the light L1 close to the light incident surface 21 or the light L2 close to the middle portion of the light guide 20 is reflected by the V-shaped microstructure 251 and is disposed toward the light emitting surface 22. The tip of the V-shaped microstructure 251 can be oriented upward or downward, provided that it can be reflected by the V-shaped microstructure 251.

Referring to fig. 3 to 5, if the strip light guide member 40 and the side light source (light source module 30) with uniform shapes are adopted, as shown in fig. 4, since the LED light is a point light source, the light L3 is continuously reflected to the other side surface 42 to emit light due to the refraction law (sminels law) after entering the light guide member 40 from the light incident surface on the side, and cannot emit light toward the Z direction. If the light guide 20 of the present embodiment is adopted, as shown in fig. 5, the wedge-shaped structure of the light guide 20 (in the ZY section) can gradually change the reflection angle after the light L4 contacts the bottom slope for multiple times, so that the light L4 can emit light in the Z direction, or more chances are provided for the light L4 to be reflected by the V-shaped microstructures 251 and emit to the light emitting surface 22, and the portion of the light guide 20 closer to the left side of fig. 5 has a higher light emitting ratio in the Z direction. The LED chips 301,302,303 at different positions in the Z direction can reflect light through the wedge structure and emit the light to the light emitting surface 22.

On the basis, the higher the density of the V-shaped microstructures 251 is, the more light reflected by the corresponding region is, so that the brightness of the lamp at different positions can be adjusted by adjusting the number density of the microstructures.

Referring to fig. 1, 2 and 6, the collimator lens 50 is also an elongated light guide assembly, the extending direction of the collimator lens 50 is the same as the extending direction of the light guide 20, and the contour of the collimator lens 50 in the extending direction is substantially the same, in other words, the cross-sectional shapes of the collimator lens 50 at different positions in the Y direction are substantially the same. In addition, the light emitting surface 52 of the collimating lens 50 may be a plane surface or a cambered surface. The light incident surface 51 of the collimating lens 50 is aligned with the linear light source on the light emitting surface 22 of the light guide 20, and the light emitted from the light emitting surface 22 of the light guide 20 is collimated and then emitted from the light emitting surface 52.

Referring to fig. 7, a schematic diagram of a simulated human eye right in front of the light-emitting surface 52 of the lamp structure and perpendicular to the light-emitting surface, where the top of the cone in fig. 7 is the position of the simulated human eye, the coverage range of the cone is the luminance receiving range of the simulated human eye, and the bottom box of the cone represents the observation area of the simulated human eye. As a result, as shown in fig. 8, the zero-degree visual effect of the human eye is a uniform long-stripe light pattern.

Please refer to fig. 9, which is a schematic diagram of light intensity simulation directions, and is a light intensity (unit cd) simulated by an opening angle of ± 45 degrees in the X direction and an opening angle of ± 30 degrees in the Y direction facing the Z axis, fig. 10 and fig. 11 respectively showing light intensities (unit cd) of the light intensity distribution diagram in the horizontal direction (i.e., Y direction) and the vertical direction (i.e., X direction) of the vehicle daytime running light of the embodiment, as shown in the drawing, the vehicle daytime running light of the embodiment has a light intensity of approximately 700cd at the center, can have a light intensity of at least 500cd within an opening angle of ± 10 degrees in the horizontal direction and the vertical direction, has a light intensity of at least 500cd within an opening angle of ± 15 degrees in the horizontal direction, and the light coverage ranges are approximately between an opening angle of ± 45 degrees in the X direction and an opening angle of ± 30 degrees in the Y direction. As shown above, the light intensity at the central portion is stronger because the light passes through the light guide plate and the V structure thereof, the light is converted from the Y direction to the Z direction, and the light in the X direction can be converged by the collimating lens, and the design of the two optical components is utilized to meet the legislative requirements of different lamps.

The above-described embodiments and/or implementations are only for illustrating the preferred embodiments and/or implementations of the technology of the present application, and are not intended to limit the implementations of the technology of the present application in any way, and those skilled in the art can make modifications or changes to other equivalent embodiments without departing from the scope of the technology disclosed in the present application, but should be construed as technology or implementations substantially the same as the present application.

Claims (8)

1. A vehicular signal lamp structure is characterized by comprising:

a light guide member having a strip-shaped light emergent surface, a light incident surface disposed at two sides of the light emergent surface, and a light guide surface structure disposed below the light emergent surface and gradually inclined upward from one side of the light incident surface toward the middle part of the light guide member,

the light guide surface structure comprises a light guide structure formed by a plurality of V-shaped microstructures, and light rays received by the light inlet surface are reflected by the light guide surface structure and then emitted towards the light outlet surface;

at least two light source modules respectively arranged on the light incident surface far away from the two sides of the light guide member;

the extending direction of the collimating lens is the same as that of the light-emitting surface of the light guide piece, the light-in surface of the collimating lens is aligned with the light-emitting surface of the light guide piece, and the light emitted from the light-emitting surface of the light guide piece is collimated and then emitted.

2. The vehicular signal lamp structure according to claim 1, wherein the contour of the collimating lens in the extending direction is substantially the same.

3. The vehicular signal lamp structure according to claim 1, wherein the longitudinal section of the light guide member is substantially in the form of two symmetrical wedges.

4. The vehicular signal lamp structure of claim 1, wherein the light source provided by the light source modules directly enters the light incident surface.

5. The vehicular signal lamp structure of claim 1, wherein a portion of the light emitted from the light source modules is reflected at least two times in the light guide member.

6. The vehicular signal lamp structure of claim 1, wherein the number of the light source modules at the light incident surface of the light guide member is plural, and the distances between the light source modules and the light emergent surface of the light guide member are different.

7. The vehicular signal lamp structure according to claim 1, wherein different positions of the light guide surface structure have the V-shaped microstructures with different distribution densities.

8. A daytime running light for a vehicle, comprising the vehicular signal lamp structure according to any one of claims 1 to 7.

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