Through-type light guide for automotive signal light and through-type signal light thereof

Abstract

A kind of through light guide for automobile signal light, through light guide two ends are respectively provided with LED light source, it is characterized in that, longitudinal multi-row light guide tooth is arranged on the side of longitudinal light emitting surface of through light guide, multi-row light guide tooth is arranged in upper and lower with light guide (longitudinal) center line as boundary, the tooth angle of multi-row light guide tooth is respectively inclined to the other end of light guide and is arranged obliquely, to respectively deflect the light from the light of two end LED light source and reflect to the front of light emitting surface of light guide, form the light of the front of light emitting surface of light guide that is evenly emitted.Light-on difference in left and right visual angle of light-on left and right area of whole light guide can be widely applied in all signal light light guide systems.

Description

Technical Field

[0001] The present invention relates to a signal light for a motor vehicle. Specifically, the present invention relates to a through-type signal light. More specifically, the present invention relates to a through-type light guide for the through-type signal light. The through-type light guide is used to penetrate the signal light of a vehicle body (rear or front), so that the signal light illumination is more uniform and the vehicle body (rear or front) is more beautiful. Background Art

[0002] For the sake of aesthetics, more and more OEMs are now inclined to design lights that run through the entire car body, such as the through-lights on the rear trunk.

[0003] For example, Figure 1 As shown, the through-type light guide mainly consists of three parts: 1-left light source, 2-right light source, and 3-through-type light guide.

[0004] As shown in the image above, through-type light guides typically exhibit bilateral symmetry. Current design approaches use the center of the through-light as the dividing point, creating a symmetrical design on both sides. Furthermore, by adjusting a series of light guide parameters, such as tooth height and tooth angle, the light guide is uniformly illuminated from all angles of the vehicle body.

[0005] For this purpose, conventional through-type light guides usually have a row of concave or protruding light guide teeth designed on the light guide (strip, tube) to control light reflection, such as Figure 2 shown.

[0006] That is, when designing conventional light guide teeth, a row of light guide teeth is formed on the light emitting surface of the light guide body, with the middle position of the light guide as the dividing line. The light guide teeth on the left and side of the dividing line are symmetrically arranged (i.e., the deflection and reflection tooth angles and surfaces of the light guide teeth).

[0007] like Figure 3 As shown, in a conventional light guide tooth, the light guide tooth corresponding to the AA section, which is the center of the light guide, is completely symmetrical with the center of the entire light guide as the dividing line. For example, in the figure, 4 represents the incident light from the left, 5 represents the incident light from the right, and 6 represents the light guide tooth. Light 4 is totally reflected by the light guide tooth toward the right (upper right, i.e., the direction of light guide exit) in the HV direction (the light diffuses symmetrically in the vertical direction). Light 5 is totally reflected by the light guide tooth toward the left (upper left, i.e., the direction of light guide exit) in the HV direction (the light diffuses symmetrically in the vertical direction).

[0008] Therefore, when the light guide is illuminated, if you look at it from either side, you'll notice a significant difference in lighting between the left and right sides of the light guide, with the center of the light guide as the dividing line. For example, from the left, the left light guide appears dimmer, while the right light guide appears brighter. From the right, the right light guide appears dimmer, while the left light guide appears brighter. Summary of the Invention

[0009] In order to overcome the lighting difference on both sides of the through-light guide under the above-mentioned left and right viewing angles of the left and right areas of the entire light guide as described above, the present invention provides a through-type light conductor for an automobile signal light, and the light-emitting surface of the through-type light conductor is provided with multiple rows of light guide teeth. In particular, the present invention provides a through-type double-row light guide teeth for an automobile signal light, which solves the problem of lighting difference on both sides of the through-light guide from the source.

[0010] The technical solutions of the present invention are as follows:

[0011] A through-type light conductor for automotive signal lights, wherein LED light sources are respectively provided at both ends of the through-type light conductor. The invention is characterized in that multiple longitudinal rows of light guide teeth are provided on one side of the longitudinal light-emitting surface of the through-type light conductor. The multiple rows of light guide teeth are arranged vertically with the longitudinal centerline of the light conductor as the boundary. The tooth angles of the multiple rows of light guide teeth are respectively inclined toward the other end of the light conductor, so as to deflect and reflect light from the LED light sources at both ends toward the front of the light-emitting surface of the light conductor, thereby forming uniform output light directly in front of the light-emitting surface of the light conductor.

[0012] According to the present invention, a through-type light conductor for automobile signal lights is characterized in that the cross-section of the through-type light conductor is circular or polygonal, forming a circular, square or polygonal light guide, and the light on the luminous surface of the circular, square or polygonal light conductor is formed by deflecting the light by multiple rows of light guide teeth.

[0013] According to the present invention, a through-type light conductor for an automobile signal light is characterized in that three rows of light guide teeth, namely, upper, middle, and lower, are provided on one side of the longitudinal light-emitting surface of the through-type light conductor. The upper and lower rows of light guide teeth are inclined in the same direction and angle, while the middle row of light guide teeth is arranged opposite to the upper and lower rows, so as to deflect light from the LED light sources at both ends toward the front of the light-emitting surface of the light conductor, thereby forming a uniform front-emitting light on the light-emitting surface of the light conductor.

[0014] According to the present invention, a through-type light conductor for an automotive signal light is characterized in that two rows of light guide teeth are provided on one side of the longitudinal light-emitting surface of the through-type light conductor, and the two rows of light guide teeth are respectively inclined toward the other end of the light conductor and are inclined at opposite angles to deflect light from the LED light sources at the two ends toward the front of the light-emitting surface of the light conductor, thereby forming a uniform front-emitting light on the light-emitting surface of the light conductor.

[0015] According to the present invention, a through-type light conductor for automobile signal lights is characterized in that the tooth height of the light guide teeth is controlled within 1 mm, and the tooth pitch range is 0.8 mm-2 mm. The tooth height and tooth pitch of the light guide teeth can be adjusted according to the actual lighting effect.

[0016] According to the through-type light conductor for automobile signal lights of the present invention, the feature is that the light guide teeth are formed by light guide teeth recessed in the light emitting surface of the light conductor.

[0017] According to the through-type light conductor for automobile signal lights of the present invention, the feature is that the light guide teeth are formed by light guide teeth protruding outward from the light emitting surface of the light conductor.

[0018] According to the present invention, a through-type signal lamp for a vehicle uses the through-type light conductor, and is characterized in that the through-type light conductor is used for the signal lamp of the entire trunk at the rear of the vehicle.

[0019] The through-type signal light for a vehicle according to the present invention is characterized in that the through-type light conductor is used for a trunk flip cover.

[0020] According to the present invention, a through-type signal lamp for a vehicle uses the through-type light conductor, characterized in that the through-type light conductor is used for a grille lamp of a headlight, and the light sources are located at both ends of the grille lamp.

[0021] The application of light guide as through-light is becoming more and more widespread. In addition to taillights and signal lights, more and more hosts are choosing through-light mode for headlight grille lights.

[0022] The through-type double-row light guide teeth of the automobile signal lamp according to the present invention can solve the problem of lighting difference on both sides of the through-type light guide from the source. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of a through-type light guide.

[0024] Figure 2 Schematic diagram of the light guide teeth of a conventional through-type light guide.

[0025] Figure 3 for Figure 2 Schematic diagram of the AA cross-section of the light guide teeth in a conventional through-type light guide. The light guide teeth are symmetrical with the center as the dividing line.

[0026] Figure 4 This is a schematic diagram of a through-type light conductor for an automotive signal light according to the present invention. The double-row light guide teeth are designed without any obvious sudden changes in the light guide tooth angles, so there is no clear dividing line when lighting the signal light.

[0027] Figure 5 for Figure 4BB cross-sectional diagram of the upper row of through-type light guide teeth distribution of the present invention.

[0028] Figure 6 for Figure 4 Schematic diagram of the CC cross section of the lower row of through-type light guide teeth of the present invention.

[0029] In the figure, 1 is the light source on the left, 2 is the light source on the right, 3 is the through-type light guide, 4 is the incident light on the left, 5 is the incident light on the right, 6 is the through-type light guide, 7 is the upper row of through-type light guide teeth, 8 is the lower row of through-type light guide teeth, AA is the cross-section of the light guide teeth of the previous through-type light guide, BB is the cross-section of the upper row of light guide teeth, and CC is the cross-section of the lower row of light guide teeth. DETAILED DESCRIPTION

[0030] Example 1

[0031] The utility model relates to a through-type light conductor used for a rear signal lamp of an automobile and penetrating a trunk flip cover. LED light sources are respectively arranged at two ends of the through-type light conductor.

[0032] The cross-section of the through-type optical conductor is circular, and two longitudinal rows of optical teeth are provided on one side of the longitudinal light-emitting surface of the circular optical conductor (toward the rear side of the vehicle body). The two rows of optical teeth are arranged up and down with the (longitudinal) center line of the optical conductor as the boundary. The tooth angles of the two rows of optical teeth are respectively tilted toward the other end of the optical conductor. The angles at which the two rows of optical teeth are tilted toward the other end of the optical conductor are opposite, so as to deflect the light from the LED light sources at the two ends toward the front of the light-emitting surface of the optical conductor, thereby forming a uniform output light of the optical conductor signal light.

[0033] The cross section of the through-type light conductor is circular, and the light-emitting surface of the circular light conductor forms multiple rows of light guide teeth.

[0034] Example 2

[0035] The through-type light conductor for automobile signal lamps of the present invention is prepared in the same manner as in Example 1 except for the following differences:

[0036] Three rows of light guide teeth are arranged on one side of the longitudinal light-emitting surface of the through-type light conductor, namely the upper, middle and lower rows. The upper and lower rows of light guide teeth are inclined in the same direction and angle, while the middle row of light guide teeth is opposite to the upper and lower rows, so as to deflect the light from the LED light sources at both ends toward the front of the light-emitting surface of the light conductor, so that the light-emitting surface of the light conductor forms a uniform front-emitting light.

[0037] Example 3

[0038] The through-type light conductor for automobile signal lamps of the present invention is prepared in the same manner as in Example 1 except for the following differences:

[0039] The through-type light guide is used for a signal light that runs through the entire trunk at the rear of a car.

[0040] Example 4

[0041] The through-type light conductor for automobile signal lamps of the present invention is prepared in the same manner as in Example 1 except for the following differences:

[0042] The through-type light guide is used for a grille light of a headlight.

[0043] Example 5

[0044] The through-type light conductor for automobile signal lamps of the present invention is prepared in the same manner as in Example 1 except for the following differences:

[0045] The light guide teeth are formed by being recessed in the light emitting surface of the light conductor.

[0046] Example 6

[0047] The through-type light conductor for automobile signal lamps of the present invention is prepared in the same manner as in Example 1 except for the following differences:

[0048] The light guide teeth are formed by light guide teeth protruding outward from the light emitting surface of the light conductor.

[0049] According to the present invention, the light-emitting surface of the through-type optical conductor is provided with through-type multi-row or double-row optical teeth, which eliminates the lighting difference between the left and right areas of the entire optical conductor under the above-mentioned left and right viewing angles, and can be widely used in all signal light guide systems.

Claims

1. A through-type light conductor for automobile signal lights, wherein LED light sources are respectively provided at both ends of the through-type light conductor, characterized in that: Multiple rows of longitudinal light guide teeth are arranged on one side of the longitudinal light emitting surface of the through-type light conductor. The multiple rows of light guide teeth are arranged up and down with the longitudinal center line of the light conductor as the boundary. The tooth angles of the multiple rows of light guide teeth are tilted toward the other end of the light conductor, and the tilted angles are set in opposite directions to deflect the light from the two ends of the LED light source toward the front of the light emitting surface of the light conductor, forming a uniform output light in front of the light emitting surface of the light conductor, or Three rows of light guide teeth are arranged on one side of the longitudinal light-emitting surface of the through-type light conductor, namely the upper, middle and lower rows. The upper and lower rows of light guide teeth are inclined in the same direction and angle, while the middle row of light guide teeth is opposite to the upper and lower rows, so as to deflect the light from the LED light sources at both ends toward the front of the light-emitting surface of the light conductor, so that the light-emitting surface of the light conductor forms a uniform front-emitting light.

2. A through-type light conductor for a vehicle signal light according to claim 1, characterized in that: The cross-section of the through-type light conductor is circular or polygonal, forming a circular, square or polygonal light guide. The light on the luminous surface of the circular, square or polygonal light conductor is formed by deflecting the light by multiple rows of light guide teeth.

3. A through-type light conductor for a car signal light according to claim 1, characterized in that: Two rows of light guide teeth are set on one side of the longitudinal light-emitting surface of the through-type light conductor. The two rows of light guide teeth are respectively biased toward the other end of the light conductor to deflect the light from the two ends of the LED light sources toward the front of the light-emitting surface of the light conductor, forming a uniform front-emitting light on the light-emitting surface of the light conductor.

4. A through-type light conductor for a car signal light according to claim 1, characterized in that: The tooth height of the light guide teeth is controlled within 1mm, and the tooth pitch range is 0.8mm-2mm. The tooth height and tooth pitch of the light guide teeth can be adjusted according to the actual lighting effect.

5. A through-type light conductor for a car signal light according to claim 1, characterized in that: The light guide teeth are formed by light guide teeth that are recessed in the light emitting surface of the light conductor.

6. A through-type light conductor for a car signal light according to claim 1, characterized in that: The light guide teeth are formed by light guide teeth protruding from the light emitting surface of the light conductor.

7. A through-type signal light for a vehicle, using the through-type light conductor according to any one of claims 1 to 6, characterized in that: The through-type optical conductor is used for the signal light of the entire trunk at the rear of the vehicle.

8. The vehicle through-type signal light according to claim 7, wherein: The through-type optical fiber is used for a trunk flap.

9. A through-type signal light for a vehicle, using the through-type light conductor according to any one of claims 1 to 6, characterized in that: The through-type light conductor is used for a grille lamp of a headlight, and the light sources are located at both ends of the grille lamp.

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