Vehicle lamp

Abstract

The present invention relates to a vehicle lamp, and more particularly, to a vehicle lamp that forms a low beam pattern using light transmitted through a plurality of independent lenses. A vehicle lamp according to an embodiment of the present invention includes a beam pattern forming portion that forms a beam pattern, the beam pattern forming portion including a light source to irradiate light, a lens including a plurality of light transmitting portions formed of a light incident portion, a light exit portion, and a shield portion, and a reflector including a plurality of reflecting surfaces that reflect the light to the light incident portion of a corresponding light transmitting portion among the plurality of light transmitting portions.

Description

Technical Field

[0001] This invention relates to a vehicle lamp, and more specifically, to a vehicle lamp that utilizes light transmitted through multiple independent lenses to form a near-beam pattern. Background Technology

[0002] Typically, vehicles are equipped with lights that have both illumination and signaling functions. The illumination function helps to easily identify objects around the vehicle when driving at night, while the signaling function informs other drivers or pedestrians of the vehicle's driving status.

[0003] For example, vehicle lights that operate by directly emitting light include headlights that illuminate forward to ensure the driver's visibility, brake lights that illuminate when the brake is applied, turn signals used when turning right or left, and reversing lights that illuminate when reversing. In addition, reflectors are installed at the front and rear of the vehicle, which function by reflecting light so that the vehicle can be easily identified from the outside.

[0004] The light shining forward onto a vehicle can form a low beam pattern and a high beam pattern. The low beam pattern is used to ensure visibility at close range, while the high beam pattern is used to ensure visibility at long range.

[0005] When a near-beam pattern is formed using light transmitted through a lens, the shape of the near-beam pattern can be limited. A near-beam pattern can be formed by overlapping multiple regions with different optical densities and sizes, but light transmitted through a lens cannot accurately represent each region. Therefore, there is a need for inventions capable of accurately representing the multiple regions constituting the near-beam pattern.

[0006] [Existing Technical Documents]

[0007] Korean Patent Publication No. 10-2015-0052638 (May 14, 2015) Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a vehicle lamp that uses light transmitted through multiple independent lenses to form a near beam pattern.

[0009] The technical problems to be solved by the present invention are not limited to those mentioned above. Those skilled in the art can clearly understand other technical problems not mentioned from the following description.

[0010] According to an embodiment of the present invention, a vehicle lamp includes a beam pattern forming portion for forming a beam pattern, the beam pattern forming portion comprising: a light source for illuminating light; a lens including a plurality of light transmission portions formed by a light incident portion, a light exit portion and a shielding portion; and a reflector including a plurality of reflective surfaces that reflect the light to a light incident portion of a corresponding light transmission portion among the plurality of light transmission portions.

[0011] Light reflected by each of the plurality of reflective surfaces is incident on the light transmission section corresponding to the reflective surface in a 1:1 manner.

[0012] The light incident portion has a curvature that bulges toward the reflector.

[0013] Each of the plurality of reflective surfaces is positioned above the light incident portion of the corresponding light transmission portion, and the light incident portion is inclined toward the corresponding reflective surface.

[0014] Each of the plurality of light-transmitting sections includes a first shielding section that blocks a portion of the light incident on the light incident section, thereby forming a light-dark cutoff in the beam pattern.

[0015] The first shielding portion includes a light-dark cutoff forming portion, and each of the plurality of reflective surfaces has: a first focal point located at the light source; and a second focal point located at the light-dark cutoff forming portion of the corresponding light transmission portion among the plurality of light transmission portions.

[0016] The first shielding portions included in the multiple light-transmitting portions arranged vertically are spaced apart from each other.

[0017] Each of the plurality of light-transmitting sections includes a second shielding section, which blocks light reflected by the reflector that has not been incident on the light incident section from being incident on the light-transmitting section.

[0018] The second shielding portion extends downward from the first shielding portion and is inclined toward the light incident portion.

[0019] The beam pattern includes a near beam pattern.

[0020] The beam pattern forming unit comprises a plurality of parts, and the near beam pattern includes a dot beam pattern, an intermediate beam pattern and a diffuse beam pattern. At least a portion of the plurality of beam pattern forming units forms the dot beam pattern, another portion of the plurality of beam pattern forming units forms the intermediate beam pattern, and yet another portion of the plurality of beam pattern forming units forms the diffuse beam pattern.

[0021] The dot beam pattern, the intermediate beam pattern, and the diffuse beam pattern overlap at least partially with each other.

[0022] Specific details of other embodiments are included in the detailed description and accompanying drawings.

[0023] The vehicle lamp according to the embodiments of the present invention described above forms a near beam pattern by transmitting light through multiple independent lenses, thereby having the advantage of being able to accurately present multiple areas forming the near beam pattern. Attached Figure Description

[0024] Figure 1 This is a diagram illustrating a vehicle lamp according to an embodiment of the present invention.

[0025] Figure 2 This is a diagram showing the pattern of the near beam.

[0026] Figure 3 Is Figure 1 A three-dimensional view of the beam pattern forming part is shown in the figure.

[0027] Figure 4 Is Figure 1 The side view of the beam pattern forming part is shown in the figure.

[0028] Figure 5 yes Figure 3 The sectional view of A-A' in the diagram.

[0029] Figure 6 It is a diagram used to describe the focal point of a reflecting surface.

[0030] Figure 7 This is a side view of the light-transmitting part.

[0031] Figure 8 This is a three-dimensional view of the back of the lens.

[0032] Figure 9 yes Figure 3 The cross-sectional view of B-B' in the diagram.

[0033] Figure 10 This diagram illustrates the situation where light is emitted in the beam pattern forming section.

[0034] Figure 11 This diagram illustrates the function of the second shielding section.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1: Vehicle lighting fixtures; 10: Beam pattern forming section

[0037] 100: Light source; 200: Reflector

[0038] 210: Reflecting surface; 300: Lens

[0039] 310: Light transmission section; 311: Light incident section

[0040] 312: Light emitting part; 313a: First shielding part

[0041] 313b: Second shielding section Detailed Implementation

[0042] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. (Refer to the accompanying drawings) Figure 1 The advantages and features of the invention, as well as the methods for achieving them, will become clear from the detailed embodiments described below. However, the invention can be implemented in many different forms and is not limited to the embodiments disclosed below. These embodiments are provided only to fully disclose the invention and to fully inform those skilled in the art of the invention's scope, which is defined only by the scope of the claims. Throughout this specification, the same reference numerals refer to the same constituent elements.

[0043] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) are intended to have the meaning commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless otherwise explicitly and specifically defined, terms as defined in commonly used dictionaries should not be interpreted ideally or excessively.

[0044] Figure 1 This is a diagram illustrating a vehicle lamp according to an embodiment of the present invention. Figure 2 This is a diagram showing the pattern of the near beam.

[0045] Reference Figure 1 According to an embodiment of the present invention, a vehicle lamp 1 may include a beam pattern forming part 10.

[0046] The beam pattern forming unit 10 can form a beam pattern. In this invention, the beam pattern formed by the beam pattern forming unit 10 can be a near beam pattern. A near beam pattern refers to a beam pattern that is illuminated to ensure close-range visibility in front of the vehicle.

[0047] Reference Figure 2 The near beam pattern 20 may include a dot beam pattern 21, an intermediate beam pattern 22, and a diffused beam pattern 23.

[0048] The dot beam pattern 21 can be arranged in a specific area of ​​the near beam pattern 20 to ensure visibility in the relevant area. Compared with other beam patterns, the dot beam pattern 21 has a smaller area and can have higher brightness. The dot beam pattern 21 ensures a clear field of vision for the part directly seen by the driver.

[0049] The intermediate beam pattern 22 can be arranged over the entire area of ​​the near beam pattern 20 to ensure visibility around the vehicle's front perimeter. Compared to other beam patterns, the intermediate beam pattern 22 has a larger area and can have lower brightness.

[0050] The diffused beam pattern 23 can be arranged in the side area of ​​the near beam pattern 20 to ensure the visibility of the vehicle's front side. The diffused beam pattern 23 can be a beam pattern that illuminates only the driving lane and not the oncoming lane.

[0051] like Figure 2 As shown, the near beam pattern 20 may include: a dot beam pattern 21, an intermediate beam pattern 22, and a diffused beam pattern 23. At this time, the dot beam pattern 21, the intermediate beam pattern 22, and the diffused beam pattern 23 overlap each other to form the near beam pattern 20.

[0052] When a single module is used to form the dot beam pattern 21, the intermediate beam pattern 22, and the diffused beam pattern 23, it may not be possible to clearly form each beam pattern. Therefore, it is preferable to form the dot beam pattern 21, the intermediate beam pattern 22, and the diffused beam pattern 23 separately, and then overlap the formed multiple beam patterns to form the near beam pattern 20.

[0053] According to an embodiment of the present invention, a vehicle lamp 1 can form a dot beam pattern 21, a central beam pattern 22, and a diffused beam pattern 23, respectively, and overlap them to form a near beam pattern 20. (See also...) Figure 1 As can be explained, multiple beam pattern forming units 10 may be provided. For example, multiple beam pattern forming units 10 may be arranged in a row.

[0054] At least a portion of the plurality of beam pattern forming units 10 can form a dot beam pattern 21, another portion of the plurality of beam pattern forming units 10 can form an intermediate beam pattern 22, and yet another portion of the plurality of beam pattern forming units 10 can form a diffused beam pattern 23. The dot beam pattern 21, the intermediate beam pattern 22, and the diffused beam pattern 23 are individually formed according to the different beam pattern forming units 10. The individually formed beam patterns 21, 22, and 23 are combined to form a near beam pattern. Therefore, the light distribution for each region of the near beam pattern 20 will be correctly formed, thereby effectively ensuring the driver's field of vision.

[0055] Figure 3 Is Figure 1 A perspective view of the beam pattern forming part shown in the figure. Figure 4 Is Figure 1 The side view of the beam pattern forming part is shown in the figure.

[0056] Reference Figure 3and Figure 4 According to an embodiment of the present invention, the beam pattern forming unit 10 includes a light source 100, a reflector 200, and a lens 300.

[0057] The light source 100 can emit light. As a light-emitting module that generates light, the light source 100 can be one of the following: LED (Light Emitting Diode), laser, or bulb type light source. The light source 100 can emit light with a predetermined angular range. For this purpose, an additional lens (not shown) can be provided in the light path of the light source 100 to concentrate or diffuse the light.

[0058] Reflector 200 can reflect light from light source 100. The light reflected by reflector 200 can be transmitted to lens 300. Lens 300 can transmit light incident from reflector 200 to form a beam pattern.

[0059] The lens 300 may include a plurality of light-transmitting portions 310. Each of the plurality of light-transmitting portions 310 can independently transmit incident light. As described later, the reflector 200 may include a plurality of reflecting surfaces, and the lens 300 can transmit light incident from the plurality of reflecting surfaces to form a beam pattern. In this case, each of the plurality of light-transmitting portions 310 can transmit light incident from the corresponding reflecting surface among the plurality of reflecting surfaces.

[0060] Figure 5 yes Figure 3 The sectional view of A-A' in the diagram. Figure 6 This is a diagram used to illustrate the focal point of a reflecting surface.

[0061] Reference Figure 5 The reflector 200 may include multiple reflective surfaces 210.

[0062] Multiple reflective surfaces 210 can reflect light to the light incident portion 311 of the corresponding light transmission portion 310 among the multiple light transmission portions 310 provided in the lens 300. For example, the first reflective surface 210 of the multiple reflective surfaces 210 can reflect light to the light incident portion 311 of the first light transmission portion 310, and the second reflective surface 210 can reflect light to the light incident portion 311 of the second light transmission portion 310. Therefore, the light reflected by each of the multiple reflective surfaces 210 can be incident on the light incident portion 311 of the light transmission portion 310 corresponding to the emitting surface 210 in a 1:1 ratio.

[0063] Adjacent reflecting surfaces 210 may have boundaries, and each reflecting surface 210 may reflect light in an individual direction. Therefore, the curvature and opposing directions of each reflecting surface 210 can be configured accordingly.

[0064] Reference Figure 6 Multiple reflecting surfaces 210 can each have a first focal point F1 and a second focal point F2.

[0065] The first focal point F1 can be located at the light source 100. The second focal point F2 can be located at the light-dark cutoff forming section CP of the light transmission section 310 corresponding to the multiple light transmission sections 310 constituting the lens 300 (see reference). Figure 9 ).

[0066] Light emanating from the light source 100 can be transmitted to multiple reflecting surfaces 210. When the light source 100 is arranged at the first focal point F1 of each of the multiple reflecting surfaces 210, each reflecting surface 210 can efficiently receive the incident light from the light source 100.

[0067] Each reflecting surface 210 can reflect incident light. At this time, each reflecting surface 210 can reflect light towards the second focal point F2. When a first shielding part is arranged at the second focal point F2 of each of the multiple reflecting surfaces 210, the reflected light can be transmitted to the first shielding part efficiently.

[0068] Figure 7 This is a side view of the light-transmitting part.

[0069] Reference Figure 7 The light transmission section 310 includes a light incident section 311 and a light emitting section 312.

[0070] The light incident section 311 can receive light incident from the corresponding reflective surface 210 among the plurality of reflective surfaces 210 included in the reflector 200. A specific reflective surface among the plurality of emitting surfaces 210 included in the reflector 200 can correspond to a specific light transmitting section 310 among the plurality of light transmitting sections 310 included in the lens 300, and light reflected from that reflective surface can be incident on the light incident section 311 of that light transmitting section 310.

[0071] In particular, the second focal point F2 of the reflective surface 210 is the location of the first shielding portion 313a, which can be included inside the light transmission portion 310. Therefore, the light irradiated from the light source 100 is transmitted to the lens 300 with reduced light loss.

[0072] The light incident portion 311 may have a curvature R. Specifically, the light incident portion 311 may have a curvature R that protrudes toward the reflector 200. As the light incident portion 311 has a curvature R, the area of ​​the light incident portion 311 increases, and the amount of light incident through the light incident portion 311 also increases.

[0073] Each of the plurality of reflecting surfaces 210 can be arranged above the light incident portion 311 of the corresponding light transmission portion 310. In this case, the light incident portion 311 can be tilted toward the corresponding reflecting surface 210. As the light incident portion 311 is formed tilted toward the reflecting surface 210 arranged above, not only does the actual area of ​​the light incident portion 311 increase, but the area of ​​the light incident portion 311 as observed from the reflecting surface 210 also increases. Therefore, the light incident portion 311 can receive incident light with reduced loss of light reflected from the reflecting surface 210.

[0074] The light emitting section 312 can emit light that has been incident on the light incident section 311. The light emitting section 312 can have a specific curvature, which can concentrate or diffuse the emitted light.

[0075] The light transmission section 310 can be provided in a tunnel shape that extends from the light incident section 311 to the side connected to the light exit section 312. Light incident on the light incident section 311 can be reflected inside the light transmission section 310 and emitted through the light exit section 312.

[0076] The light transmission section 310 may include a first shielding section 313a and a second shielding section 313b. The first shielding section 313a can block the transmission of light incident on the light incident section 311 in a predetermined shape, thereby forming a light-dark cutoff in the beam pattern. The second shielding section 313b can block light reflected by the reflector 200 that did not incident on the light incident section 311 from incident on the light transmission section 310. Furthermore, the second shielding section 313b can prevent light reflected to the light exiting section 312 from being reflected back to the light exiting section 312. A detailed description of the shape and function of the first shielding section 313a and the second shielding section 313b will be provided later. Figure 8 , Figure 9 and Figure 11 This will be discussed later.

[0077] Figure 8 This is a 3D view of the back of the lens. Figure 9 yes Figure 3 The cross-sectional view of B-B' in the diagram.

[0078] Reference Figure 8 and Figure 9 Each light transmission part 310 may include: a first shielding part 313a and a second shielding part 313b.

[0079] The first shielding portion 313a can block a portion of the light incident on the light incident portion 311, thereby forming a light-dark cutoff in the beam pattern. On the surface of the light transmitting portion 310, the first shielding portion 313a is formed as the second shielding portion 313b protrudes in the form of a semi-cylindrical column.

[0080] Reference Figure 9To explain, light transmitted to the blocking region BL throughout the entire area of ​​the first shielding part 313a may be blocked in the blocking region BL and thus unable to transmit to the light emitting part 312, or it may be reflected by the blocking region BL and then transmitted to the light emitting part 312. Light transmitted to the passing region TH throughout the entire area of ​​the first shielding part 313a may be transmitted to the light emitting part 312 through the passing region TH.

[0081] The first shielding portion 313a may include a light-dark cutoff forming portion CP. A light-dark cutoff forming portion CP for forming a light-dark cutoff may be formed between the blocking region BL and the passing region TH. Light incident through the light incident portion 311 is emitted after passing through the passing region TH, thereby forming a light-dark cutoff in the near beam pattern 20.

[0082] Figure 10 This diagram illustrates the process of light being emitted in the beam pattern forming section. Figure 11 This diagram illustrates the function of the second shielding section.

[0083] Reference Figure 10 Light emanating from the light source 100 is reflected by the reflector 200 and incident on the lens 300. The light incident on the lens 300 is emitted, thereby forming a beam pattern.

[0084] Light emanating from the light source 100 can be transmitted to multiple emitting surfaces 210 included in the reflector 200. Each reflecting surface 210 can reflect light incident on its corresponding light transmission section 310.

[0085] Light reflected from the reflecting surface 210 can enter the light transmission section 310 through the light incident section 311. The second focal point F2 of the reflecting surface 210 can be located at the light cutoff forming section CP of the first shielding section 313a. The incident light has a predetermined shape after passing through the first shielding section 313a. The light passing through the first shielding section 313a can be emitted through the light exiting section 312 to form a beam pattern.

[0086] The first shielding portion 313a included in the plurality of light-transmitting portions 310 arranged vertically can be spaced apart from each other. Figure 10 The diagram shows a configuration of three layers for the light-transmitting portions 310. The first shielding portion 313a of the light-transmitting portions 310 arranged on different layers can be separated from each other by the second shielding portion 313b.

[0087] Because an air layer exists between a specific light-transmitting section 310 and another light-transmitting section 310, light incident on the light-incident section 311 of the specific light-transmitting section 310 can be reflected on the surface of the first shielding section 313a without transmitting through the air layer. That is, light incident on the specific light-transmitting section 310 can be prevented from entering other light-transmitting sections 310, so each light-transmitting section 310 only emits light incident through its own light-incident section 311, and does not emit light flowing out of other light-transmitting sections 310. As a result, each light-transmitting section 310 can emit light without interference from other light-transmitting sections 310, so the light emitted from each light-transmitting section 310 can form a pre-defined, clear beam pattern.

[0088] The second shielding portion 313b can be formed by extending downward from the first shielding portion 313a. The second shielding portion 313b can block light reflected by the reflector 200 that has not been incident on the light incident portion 311 from entering the light transmission portion 310. The second shielding portion 313b can be tilted toward the light incident portion 311. This is to prevent light reflected at the light exit portion 312 from being reflected back to the light exit portion 312.

[0089] Reference Figure 11 To explain, a portion of the light transmitted from inside the light transmission section 310 to the light emission section 312 may be reflected by the light emission section 312.

[0090] Light reflected from the light emitting portion 312 may be transmitted to the second shielding portion 313b. When the arrangement angle of the second shielding portion 313b is inappropriate, the second shielding portion 313b may reflect light incident from the light emitting portion 312 back to the light emitting portion 312. For example, when the second shielding portion 313b is not formed tilted towards the light incident portion 311, the second shielding portion 313b may reflect light towards the light emitting portion 312.

[0091] After being reflected by the second shielding part 313b, the light emitted from the light emitting part 312 shines upward relative to the light axis of the light emitting part 312, which may cause glare. Glare is a beam pattern area that protrudes by a predetermined size in the near beam pattern, which may cause glare to vehicles or pedestrians traveling in front.

[0092] The second shielding portion 313b is formed at an angle toward the light incident portion 311, thereby blocking the light reflected from the light emitting portion 312 and transmitted to the second shielding portion 313b from being reflected back to the light emitting portion 312, and preventing glare from occurring.

[0093] The embodiments of the present invention have been described with reference to the above description and accompanying drawings. However, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical concept or essential features. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

Claims

1. A vehicle lighting fixture, comprising: Beam pattern forming section that forms beam patterns The beam pattern forming section includes: A light source, used to illuminate; A lens, comprising multiple light-transmitting portions, wherein each light-transmitting portion is formed by a light-incident portion, a light-exit portion, and a shielding portion; and A reflector includes multiple reflective surfaces that reflect the light to the light incident portion of a corresponding light transmission portion among the multiple light transmission portions. Each of the plurality of light-transmitting portions includes: A first shielding portion blocks a portion of the light incident on the light incident portion, thereby creating a light-dark cutoff in the beam pattern; and The second shielding portion extends downward from the first shielding portion to block light reflected by the reflector that did not reach the light incident portion from entering the light transmission portion. It is inclined towards the light incident portion to prevent light reflected from the light exiting portion and transmitted to the second shielding portion from being reflected back to the light exiting portion. There is a space between the plurality of light-transmitting portions arranged vertically and vertically to separate the plurality of light-transmitting portions arranged vertically and vertically. The first shielding portion included in the plurality of light-transmitting portions arranged vertically and vertically is separated from each other by the second shielding portion as the boundary. The second shielding portion is arranged corresponding to the separated space.

2. The vehicle lighting fixture according to claim 1, wherein, Light reflected by each of the plurality of reflective surfaces is incident on the light transmission section corresponding to the reflective surface in a 1:1 manner.

3. The vehicle lighting fixture according to claim 1, wherein, The light incident portion has a curvature that bulges toward the reflector.

4. The vehicle lighting fixture according to claim 1, wherein, Each of the plurality of reflective surfaces is positioned on the upper side compared to the light incident portion of the corresponding light transmission portion. The light incident portion is tilted toward the corresponding reflective surface.

5. The vehicle lighting fixture according to claim 1, wherein, The first shielding part includes: a light-dark cutoff forming part. Each of the plurality of reflecting surfaces has: The first focal point is located at the light source; and The second focal point is the light-dark cutoff forming portion of the light transmission portion corresponding to the plurality of light transmission portions.

6. The vehicle lighting fixture according to claim 1, wherein, The first shielding portions included in the multiple light-transmitting portions arranged vertically are spaced apart from each other.

7. The vehicle lighting fixture according to claim 1, wherein, The beam pattern includes a near beam pattern.

8. The vehicle lighting fixture according to claim 7, wherein, The beam pattern forming unit comprises multiple parts. The near-beam pattern includes: a dot beam pattern, a central beam pattern, and a diffused beam pattern. At least a portion of the plurality of beam pattern forming portions forms the dot beam pattern. Another portion of the plurality of beam pattern forming sections forms the intermediate beam pattern. Another portion of the plurality of beam pattern forming portions forms the diffused beam pattern.

9. The vehicle lighting fixture according to claim 8, wherein, The dot beam pattern, the intermediate beam pattern, and the diffuse beam pattern overlap at least partially with each other.

Images