Double-color-temperature dipped headlight

Abstract

A double-color-temperature dipped headlight comprises a lamp holder and a light source arranged on the inner bottom face of the lamp holder, the light source comprises two single-color lamp beads with different color temperatures and is independently turned on, a first lens and a second lens are sequentially arranged above the light source in the light emitting direction, a first light inlet face is arranged at the bottom of the first lens, and the top of the first lens protrudes to form a first light outlet face. The bottom of the second lens is provided with a second incident surface, the top of the second lens protrudes to form a second emergent surface, the radians of the first emergent surface and the second emergent surface are different, and light emitted by the light source sequentially penetrates through the first lens and the second lens and then is scattered. The dipped headlight structure adopts a double-lens structure, the light source is matched with the first lens and the second lens to emit light, the light emitting uniformity is high, the irradiation range is wide, the light source adopts two single-color lamp beads with different color temperatures and is independently started for use according to weather conditions, and compared with a double-color light source, the cost is greatly reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to a dual-color temperature low beam lamp. Background Art

[0002] Headlights are the main lighting source when driving. The quality of headlights plays an extremely important role in driving safety, especially in different usage scenarios and usage periods such as wind, rain, night, and fog. Headlights play an extremely important role in observing road conditions when driving. Color temperature and brightness are the two main performance indicators of headlights. Color temperature affects people's visual perception, and thus affects people's observation of driving road conditions. At the same time, color temperature is also related to the environmental penetration of lighting light. In rain, fog, haze, snow, etc., low color temperature and high color temperature can effectively improve the environmental penetration of light, thereby improving driving safety in the above environments. In sunny environments, high color temperature is closer to daylight, which is conducive to observing road conditions. In different usage environments, the color temperature requirements of headlights are also different. Existing headlights mostly use dual-color lamp beads as light sources, which are costly, and have a single overall structure, weak light efficiency, and a small lighting range. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides a dual-color temperature low beam lamp.

[0004] To achieve the above-mentioned purpose, the utility model provides a dual-color temperature low beam lamp, comprising a lamp holder, a light source arranged on the inner bottom surface of the lamp holder, the light source comprising two monochromatic lamp beads with different color temperatures and turned on independently, a first lens and a second lens are arranged in sequence above the light source along the light emitting direction, a first light incident surface is arranged at the bottom of the first lens, the top of the first lens is convex to form a first light emitting surface, a second light incident surface is arranged at the bottom of the second lens, the top of the second lens is convex to form a second light emitting surface, the first light emitting surface and the second light emitting surface have different curvatures, and the light emitted by the light source passes through the first lens and the second lens in sequence and then scatters out.

[0005] As a further improvement of the utility model, the light source includes white light lamp beads and yellow light lamp beads, and the white light lamp beads and the yellow light lamp beads are turned on independently.

[0006] As a further improvement of the present invention, the first light incident surface and the second light incident surface are both planes.

[0007] As a further improvement of the present invention, the first lens and the second lens are both made of transparent material.

[0008] As a further improvement of the present invention, the curvature at the vertex of the first light emitting surface is greater than the curvature at the vertex of the second light emitting surface.

[0009] The beneficial effects of the utility model are:

[0010] The low beam structure adopts a double-lens structure. The light source cooperates with the first lens and the second lens to emit light. The light output is highly uniform and has a wide illumination range. The light source uses two monochrome lamp beads with different color temperatures, which can be turned on and used independently according to weather conditions. Compared with the two-color light source, it greatly reduces the cost and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a dual-color temperature low beam lamp of the utility model;

[0012] Figure 2 The utility model is a schematic diagram of a light output circuit of a dual-color temperature low beam lamp.

[0013] In the figure: 1, lamp holder; 2, light source; 21, white light lamp bead; 22, yellow light lamp bead; 3, first lens; 31, first light incident surface; 32, first light emitting surface; 4, second lens; 41, second light incident surface; 42, second light emitting surface. DETAILED DESCRIPTION

[0014] like Figure 1 As shown, a dual-color temperature low beam lamp described in the utility model comprises a lamp holder 1, a light source 2 arranged on the inner bottom surface of the lamp holder 1, the light source 2 comprises two monochromatic lamp beads with different color temperatures and are independently turned on, the light source 2 comprises a white light lamp bead 21 and a yellow light lamp bead 22, the white light lamp bead 21 and the yellow light lamp bead 22 are independently turned on, the white light lamp bead 21 is used on sunny days, and the yellow light lamp bead 22 is used on rainy and foggy days, and the penetration of yellow light on rainy and foggy days is stronger, and a first lens 3 and a second lens 4 are arranged in sequence above the light source 2 along the light emitting direction, and the first lens 3 and the second lens 4 are both made of transparent The first lens 3 is made of a material, a first light incident surface 31 is provided at the bottom of the first lens 3, the top of the first lens 3 is convex to form a first light emitting surface 32, and a second light incident surface 41 is provided at the bottom of the second lens 4. The first light incident surface 31 and the second light incident surface 41 are both planes, and the top of the second lens 4 is convex to form a second light emitting surface 42. The first light emitting surface 32 and the second light emitting surface 42 have different curvatures, and the curvature at the vertex of the first light emitting surface 32 is greater than the curvature at the vertex of the second light emitting surface 42. The light emitted by the light source 2 passes through the first lens 3 and the second lens 4 in sequence and then scatters.

[0015] The low beam structure adopts a double-lens structure. The light source cooperates with the first lens and the second lens to emit light. The light output is highly uniform and has a wide illumination range. The light source uses two monochrome lamp beads with different color temperatures, which can be turned on and used independently according to weather conditions. Compared with the two-color light source, it greatly reduces the cost and increases the service life.

[0016] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings:

[0017] When in use, choose to turn on the white light lamp beads or the yellow light lamp beads according to the weather conditions. The light first enters the first lens along the first light incident surface, is refracted by the first lens and then emitted from the first light emitting surface, then enters the second lens along the second light incident surface, is refracted by the second lens and then emitted from the second light emitting surface. After being refracted by two groups of lenses with different curvatures, the light output range is effectively expanded.

[0018] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dual color temperature low beam lamp, characterized in that: The invention comprises a lamp holder (1), and a light source (2) arranged on the inner bottom surface of the lamp holder (1); the light source (2) comprises two monochromatic lamp beads of different color temperatures and are independently turned on; a first lens (3) and a second lens (4) are arranged in sequence above the light source (2) along the light emitting direction; a first light incident surface (31) is arranged at the bottom of the first lens (3); the top of the first lens (3) is convex to form a first light emitting surface (32); a second light incident surface (41) is arranged at the bottom of the second lens (4); the top of the second lens (4) is convex to form a second light emitting surface (42); the first light emitting surface (32) and the second light emitting surface (42) have different curvatures; light emitted by the light source (2) passes through the first lens (3) and the second lens (4) in sequence and then scatters out.

2. The dual color temperature low beam lamp according to claim 1, characterized in that: The light source (2) comprises a white light lamp bead (21) and a yellow light lamp bead (22), and the white light lamp bead (21) and the yellow light lamp bead (22) are turned on independently.

3. The dual color temperature low beam lamp according to claim 1, characterized in that: The first light incident surface (31) and the second light incident surface (41) are both planes.

4. The dual color temperature low beam lamp according to claim 1, characterized in that: The first lens (3) and the second lens (4) are both made of transparent material.

5. The dual color temperature low beam lamp according to claim 1, characterized in that: The curvature at the vertex of the first light emitting surface (32) is greater than the curvature at the vertex of the second light emitting surface (42).

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