Vehicle lamp and vehicle including the lamp

Abstract

To provide a lamp for a vehicle, and a vehicle including the lamp.SOLUTION: Disclosed is a lamp for a vehicle, the lamp including: a light source unit configured to emit light forward; a collimator which is provided in front of the light source unit and on which the light emitted from the light source unit is incident; and a multi-facet lens which is provided in front of the collimator and on which the light emitted from the collimator is incident. The multi-facet lens includes: a plurality of facets; and stepped portions, which are provided between the facets and each connect the two neighboring facets. At least some of exit surfaces of the facets are perpendicular to the ground or have shapes inclined further upward as proceeding in a forward direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle lamp and a vehicle including the lamp, and more particularly to a vehicle lamp equipped with an MFL and a vehicle including the lamp. [Background technology]

[0002] In recent years, as the demand for aesthetic appearance of vehicle exteriors has increased, the demand for aesthetic appearance of vehicle lamps when lit has also increased. In response to such demands, research into vehicle lamps equipped with multi-faceted lenses (MFL) has been actively conducted.

[0003] A polyhedral lens having a structure in which a region having a plurality of facets is integrated has the advantage of being significantly more aesthetically pleasing when the lamp is lit than an existing aspherical lens.

[0004] However, the conventional technology has a problem in that a part of the light is refracted upward at the step area at the boundary area between the multiple facets, which causes a glare phenomenon and dazzles pedestrians or other drivers. Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, an object of the present invention is to minimize the glare phenomenon in a vehicle lamp having a polyhedral lens and improve the performance of the vehicle lamp. [Means for solving the problem]

[0006] According to one aspect of the present invention to achieve the above object, there is provided a vehicle lamp including: a light source unit that irradiates light forward; a collimator that is provided in front of the light source unit and into which the light emitted from the light source unit is incident; and a multi-faceted lens (MFL) that is provided in front of the collimator and into which the light emitted from the collimator is incident, wherein the multi-faceted lens includes a plurality of facets and a step portion that is provided between the plurality of facets and connects two adjacent facets, and the emission surfaces of at least some of the plurality of facets are either perpendicular to the ground or have a shape that slopes upward toward the front.

[0007] The polyhedral lens may be provided to be spaced forward from the collimator.

[0008] The light emitted from the light source unit and incident on the collimator may be emitted to move downward while being emitted from the collimator.

[0009] The light emitted from the light source unit and exiting to the outside through the collimator and the polyhedral lens may form a low beam pattern.

[0010] The polyhedral lens may further include a curved region having a predetermined radius of curvature, the curved region being arranged between the step portion and the facet to connect the step portion and the facet, and light emitted from the light source and incident on the curved region may be emitted to travel downward.

[0011] The light exit surfaces of the facets of the polyhedral lens may be perpendicular to the ground or may be inclined upward toward the front.

[0012] The optical fiber may further include a housing that accommodates the light source unit, the collimator, and the polyhedral lens, and the housing may include a first region having a first width W1 and a first height H1, in which a space for accommodating the light source unit is formed, and a second region having a second width W2 smaller than the first width and a second height H2 smaller than the first height, in which a space for accommodating the collimator and the polyhedral lens is formed.

[0013] The distance between the light source unit and the collimator may be greater than the distance between the collimator and the polyhedral lens.

[0014] At least some of the step portions provided between the facets may be parallel to the ground or may have a shape that slopes downward toward the front.

[0015] The light exit surfaces of the facets may be perpendicular to the ground or may be inclined upward toward the front.

[0016] The plurality of step portions provided on the plurality of facets may be parallel to the ground or may have a shape that slopes downward toward the front.

[0017] According to another aspect of the present invention for achieving the above object, there is provided a vehicle including a vehicle lamp, the lamp including: a light source unit that irradiates light forward; a collimator that is provided in front of the light source unit and into which the light emitted from the light source is incident; and a multi-faceted lens (MFL) that is provided in front of the collimator and into which the light emitted from the collimator is incident, the multi-faceted lens including a plurality of facets and a step portion that is provided between the plurality of facets and connects two adjacent facets, and the emission surfaces of at least some of the plurality of facets are arranged perpendicular to the ground or have an upper region that is inclined forward. [Effects of the Invention]

[0018] According to the present invention, glare can be minimized in a vehicle lamp having a polyhedral lens, thereby improving the performance of the vehicle lamp. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view illustrating the structure of a vehicle lamp according to the present invention; [Figure 2] 1 is a perspective view illustrating a vehicle lamp according to the present invention with a housing removed; [Figure 3] 1 is a side cross-sectional view showing the positional relationship between a light source unit, a collimator, and a polyhedral lens, and the path of light travel, in a vehicle lamp according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle lamp and a vehicle according to the present invention will now be described with reference to the accompanying drawings.

[0021] [Vehicle lamps] Fig. 1 is a perspective view illustrating the structure of a vehicle lamp according to the present invention, Fig. 2 is a perspective view illustrating the vehicle lamp according to the present invention with the housing removed, and Fig. 3 is a side cross-sectional view illustrating the positional relationship between the light source unit, collimator, and polyhedral lens and the path of light travel in the vehicle lamp according to the present invention.

[0022] 1 to 3, a vehicle lamp 10 (hereinafter referred to as "lamp") according to the present invention may include a light source unit 100 that irradiates light forward. The light source unit 100 may include a substrate and a light source such as an LED fixed to the front of the substrate.

[0023] The lamp 10 may further include a collimator 200 that is provided in front of the light source unit 100 and into which the light emitted from the light source unit 100 is incident. The collimator 200 may be configured to convert the light emitted from the light source unit 100 into parallel light.

[0024] The lamp 10 may further include a multi-facet lens (MFL) 300 that is provided in front of the collimator 200 and onto which the light emitted from the collimator 200 is incident. The multi-facet lens 300 may include a plurality of facets 310, step portions 320 that are provided between the plurality of facets 310 and connect two adjacent facets 310, and a curved surface region 330 that is provided between the step portions 320 and the facets 310 and connects the step portions 320 and the facets 310, and has a predetermined radius of curvature.

[0025] According to the present invention, a predetermined beam pattern can be formed by light emitted from the light source unit 100 passing through the collimator 200, reaching the polyhedral lens 300, and then passing through a plurality of facets 310 to be emitted to the outside. In particular, according to the present invention, unit beam patterns formed by light emitted from each facet 310 can be gathered together to form one beam pattern.

[0026] For example, according to the present invention, light emitted from the light source unit 100 and then exiting to the outside through the collimator 200 and the polyhedral lens 300 can form a low beam pattern. That is, the vehicle lamp 10 according to the present invention can be a low beam headlamp.

[0027] Meanwhile, conventional technologies have had a problem in that part of the light exits upwards as it passes through a multi-faceted lens. Unlike light that exits downwards and reaches the ground, the upwardly exiting light reaches the eyes of pedestrians and drivers of other vehicles, causing glare to the pedestrians and drivers of other vehicles.

[0028] To solve the above-mentioned problems, according to the present invention, the light emitting surfaces 310a of at least some of the facets 310 may be formed to be perpendicular to the ground or have a shape that slopes upward toward the front. More preferably, the light emitting surfaces 310a of the facets 310 included in the polyhedral lens 300 of the lamp 10 according to the present invention may all be i) perpendicular to the ground or ii) have a shape that slopes upward toward the front. As an example, FIG. 3 illustrates a state in which the light emitting surfaces 310a of the facets 310 are formed to have a shape that slopes upward toward the front.

[0029] According to the prior art, in a lamp having a multifaceted lens, the light that causes glare, especially the light that is emitted upward to the outside, is mainly generated by the light that passes through the curved surface region that connects the facets and the stepped portion because the curved surface region is formed to protrude relatively upward.

[0030] However, according to the present invention, the exit surfaces 310a of the facets 310 are formed perpendicular to the ground or have a shape that slopes upward toward the front, so that the curved region 330 formed between the facets 310 and the stepped portion 320 protrudes relatively downward. Therefore, light emitted from the light source unit 100 and incident on the curved region 330 can be emitted in a downward direction.

[0031] Furthermore, according to the present invention, at least some of the plurality of step portions 320 provided between the plurality of facets 310 may be parallel to the ground or may have a shape that slopes downward toward the front. More preferably, the plurality of step portions 320 provided in the polyhedral lens 300 of the lamp 10 according to the present invention may all be i) parallel to the ground or ii) have a shape that slopes downward toward the front. As an example, FIG. 3 illustrates the step portions 320 having a shape that slopes downward toward the front.

[0032] 3, according to the present invention, light emitted from the light source unit 100 and incident on the collimator 200 may be emitted to move downward while exiting the collimator 200. More specifically, the light incident on the collimator 200 from the light source unit 100 may be emitted as downward parallel light and then reach the polyhedral lens 300.

[0033] Meanwhile, according to the present invention, the polyhedral lens 300 may be provided so as to be spaced apart from the collimator 200 in front of it. Since the polyhedral lens 300 is provided so as to be spaced apart from the collimator 200 in accordance with the present invention, there is no need to directly bond and assemble the polyhedral lens 300 and the collimator 200 during the manufacturing process of the lamp 10. Therefore, the area for assembling the polyhedral lens 300 and the collimator 200 is removed from the polyhedral lens 300 and the collimator 200, which significantly reduces the overall volume occupied by the lamp 10 and significantly reduces the effect of tolerances between the polyhedral lens 300 and the collimator 200 on the lamp performance when the polyhedral lens 300 and the collimator 200 are directly bonded together.

[0034] Referring now to FIG. 1, the lamp 10 according to the present invention may further include a housing 400 that houses the light source unit 100, the collimator 200 and the multi-faceted lens 300.

[0035] The housing 400 may have a stepped structure. More specifically, the housing 400 may include a first region 410 having a first width W1 and a first height H1 and forming a space for accommodating the light source unit 100, and a second region 420 having a second width W2 smaller than the first width W1 and a second height H2 smaller than the first height H1 and forming a space for accommodating the collimator 200 and the polyhedral lens 300. Therefore, a step may be formed between the first region 410 and the second region 420.

[0036] Meanwhile, as shown in FIG. 2, according to the present invention, the distance between the light source unit 100 and the collimator 200 may be greater than the distance between the collimator 200 and the polygonal lens 300 .

[0037] [vehicle] A vehicle according to the present invention may include a vehicle lamp 10.

[0038] The lamp 10 includes a light source unit 100 that emits light forward, a collimator 200 that is provided in front of the light source unit 100 and into which the light emitted from the light source unit 100 is incident, and a multi-facet lens (300) that is provided in front of the collimator 200 and into which the light emitted from the collimator 200 is incident, and the multi-facet lens 300 includes a plurality of facets 310 and a step portion 320 that is provided between the plurality of facets 310 and connects two adjacent facets 310.

[0039] In this case, according to the present invention, the light exit surfaces 310a of at least some of the facets 310 may be provided perpendicular to the ground or may have an upper region inclined forward. Meanwhile, details regarding the lamp provided in the vehicle according to the present invention are the same as those described above regarding the lamp according to the present invention.

[0040] Although the present invention has been described above using limited examples and drawings, it goes without saying that the present invention is not limited thereto, and that various implementations are possible within the technical spirit of the present invention and the scope of the claims set forth below by a person having ordinary skill in the art to which the present invention pertains. [Explanation of symbols]

[0041] 10 Lamp 100 Light source section 200 Collimator 300 multi-faceted lens 310 Facet 310a Facet exit surface 320 Step 330 Curved area 400 Housing 410 1st area 420 Second area W1 1st width W2 Second width H1 First height H2 Second height

Claims

1. a light source unit that irradiates light forward; a collimator provided in front of the light source unit, into which the light emitted from the light source unit is incident; a polyhedral lens provided in front of the collimator and onto which the light emitted from the collimator is incident, The polyhedral lens is Multiple facets and a step portion provided between the plurality of facets and connecting two adjacent facets, The vehicle lamp, wherein the light exit surfaces of at least some of the facets have a shape that slopes upward toward the front.

2. The vehicular lamp according to claim 1 , wherein the polyhedral lens is provided so as to be spaced forward from the collimator.

3. 2. The vehicle lamp according to claim 1, wherein the light emitted from the light source unit and incident on the collimator is emitted so as to travel downward while being emitted from the collimator.

4. The vehicle lamp according to claim 1 , wherein the light emitted from the light source unit and passing through the collimator and the polyhedral lens to the outside forms a low beam pattern.

5. The polyhedral lens is a curved surface region having a predetermined radius of curvature, the curved surface region being provided between the step portion and the facet so as to connect the step portion and the facet; The vehicle lamp according to claim 4 , wherein the light emitted from the light source unit and incident on the curved surface area is emitted so as to travel downward.

6. The vehicle lamp according to claim 1 , wherein the light exit surfaces of the plurality of facets provided on the polyhedral lens are all provided to have a shape that slopes upward toward the front.

7. a housing that accommodates the light source unit, the collimator, and the polyhedral lens; The housing includes: a first region having a first width and a first height, and in which a space for accommodating the light source unit is formed; 2. The vehicular lamp according to claim 1, further comprising: a second region having a second width smaller than the first width and a second height smaller than the first height, the second region defining a space in which the collimator and the polygonal lens are housed.

8. The vehicle lamp according to claim 1 , wherein a distance between the light source unit and the collimator is greater than a distance between the collimator and the polyhedral lens.

9. The vehicle lamp according to claim 1 , wherein at least some of the step portions provided between the facets are parallel to the ground or have a shape that slopes downward toward the front.

10. The vehicle lamp according to claim 1 , wherein the plurality of step portions provided on the plurality of facets are all provided parallel to the ground or have a shape that slopes downward toward the front.

11. A vehicle including a vehicle lamp, The vehicle lamp includes: a light source unit that irradiates light forward; a collimator provided in front of the light source unit, into which the light emitted from the light source unit is incident; a polyhedral lens provided in front of the collimator and onto which the light emitted from the collimator is incident, The polyhedral lens is Multiple facets and a step portion provided between the plurality of facets and connecting two adjacent facets, A vehicle, wherein the exit surfaces of at least some of the facets are provided so that upper regions thereof are inclined forward.

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