Lamp for vehicle and vehicle including the same

Abstract

A vehicle lamp is disclosed comprising: a light source for irradiating light; a light guide body provided in front of the light source and into which the light is incident; wherein the light guide body comprises a body portion, and the body portion comprises an indented area formed on the lower surface of the body portion and indented upward; wherein the indented area comprises a first section extending upwardly at an angle as it moves forward; and a second section provided in front of the first section and extending forward or downward from the first section; and wherein a material layer that reflects or absorbs the light is formed on the surface of the second section.

Description

Technology Field

[0001] The present invention relates to a lamp for a vehicle and a vehicle including the lamp. Background Technology

[0002] Vehicles are equipped with various types of vehicle lamps depending on their function. For example, low beam lamps, high beam lamps, and DRL (Daytime Running Light) lamps are installed at the front of the vehicle. Among these, the low beam lamp forms a light distribution pattern having a cut-off line shape at the top.

[0003] Meanwhile, a low-beam lamp may include an inner lens that totally reflects light and emits it forward. In this case, the area with the highest light intensity is formed near the cutoff line in the low-beam light distribution pattern, and to achieve this, light is concentrated in a specific area within the inner lens.

[0004] However, according to the prior art, when light is concentrated in a specific area of ​​the inner lens, the temperature of the specific area in the inner lens rises excessively, causing the inner lens to deform and be damaged, which resulted in the low beam lamp not functioning properly. The problem to be solved

[0005] Therefore, the problem that the present invention aims to solve is to resolve the issue of deformation and damage to the inner lens caused by light being concentrated on a specific area of ​​the inner lens in a vehicle lamp equipped with an inner lens. means of solving the problem

[0006] According to one aspect of the present invention for achieving the above objective, a vehicle lamp is provided comprising: a light source for irradiating light; a light guide body provided in front of the light source and into which the light is incident; wherein the light guide body is made of a material that transmits the light, and the light guide body comprises: a body portion forming the body of the light guide body; wherein the body portion comprises an indented area formed on the lower surface of the body portion and indented upward; and wherein the indented area comprises: a first section extending upwardly at an angle as it moves forward; and a second section provided in front of the first section and extending forward or downward from the first section; and wherein a material layer that reflects or absorbs the light is formed on the surface of the second section.

[0007] The above material layer may be formed only in the second section among the first section and the second section.

[0008] The first section may be configured such that light emitted from the light source reaches at least a portion of the first section and is totally reflected in the first section.

[0009] The first section above may be configured such that light emitted from the light source reaches any region of the first section and undergoes total internal reflection in the first section.

[0010] The light guide body comprises an incident portion connected to the rear of the body portion; and an exit portion connected to the front of the body portion; wherein the incident portion has a shape that protrudes convexly to the rear, and the exit portion may have a shape that protrudes convexly to the front.

[0011] At least a portion of the above second section may be provided ahead of the focal point (FO) of the above-mentioned output section.

[0012] The focus (FO) of the above-mentioned emission unit is provided to be spaced upward from the second section, and may be provided within the front-rear and left-right widths of the second section.

[0013] The second section comprises: a second-1 section connected to the first section and extending forward from the first section; and a second-2 section connected to the second-1 section and extending downward from the second-1 section; and the material layer may be formed only in the second-2 section among the second sections.

[0014] The second section comprises: a second-1 section connected to the first section and extending forward from the first section; and a second-2 section connected to the second-1 section and extending downward from the second-1 section; and the material layer may be formed in the second-1 section and the second-2 section.

[0015] If the vertical height of the incident section is denoted as h, the horizontal distance from the focal point (FI) of the incident section to the incident section is denoted as d, and the angle of incidence of the incident light incident from the incident section to the first section is denoted as θ, then the light guide body can be provided to satisfy the following Equation 1.

[0016] Equation 1: tan (90 °-θ) ≥ (h / 2d)

[0017] The above-mentioned incident part may have a symmetrical shape in the vertical direction and the horizontal direction, respectively.

[0018] The optical axis (AO) of the above-mentioned emission section and the direction in which the above-mentioned 2-1 section extends in the front-rear direction may be parallel to each other.

[0019] The optical axis (AO) of the above-mentioned emission section and the direction in which the above-mentioned 2-1 section extends in the front-rear direction may intersect each other at a predetermined angle.

[0020] Compared to the optical axis (AO) of the above-mentioned emission section, the above-mentioned 2-1 section may be formed to be inclined upward as it moves forward.

[0021] Compared to the optical axis (AO) of the above-mentioned emission section, the above-mentioned 2-1 section may be formed to be inclined downward as it moves forward.

[0022] The above 2-1 section includes a cut-off portion having a step shape; and the cut-off portion may include an upper surface provided on one side in the left-right direction; a lower surface provided on the other side in the left-right direction and provided below the upper surface; and an inclined surface connecting the upper surface and the lower surface and extending at an angle.

[0023] The vertical height of the above-mentioned incoming section may be greater than the vertical height of the above-mentioned outgoing section.

[0024] The left-right width of the above-mentioned incoming section may be larger than the left-right width of the above-mentioned outgoing section.

[0025] It may further include a collimator provided in front of the light source and into which light emitted from the light source is incident.

[0026] According to another aspect of the present invention for achieving the above objective, a vehicle is provided that includes a vehicle lamp, wherein the vehicle lamp comprises: a light source that irradiates light; a light guide body provided in front of the light source and into which the light is incident; wherein the light guide body is made of a material that transmits the light, and the light guide body comprises: a body portion that forms the body of the light guide body; wherein the body portion comprises: an indented area formed on the lower surface of the body portion and indented upward; wherein the indented area comprises: a first section that extends upwardly at an angle as it moves forward; and a second section provided in front of the first section and extending forward or downward from the first section; and wherein a material layer that reflects or absorbs the light is formed on the surface of the second section. Effects of the invention

[0027] According to the present invention, in a vehicle lamp equipped with an inner lens, the problem of deformation and damage to the inner lens can be resolved by concentrating light on a specific area of ​​the inner lens. Brief explanation of the drawing

[0028] FIG. 1 is a side view illustrating a vehicle lamp according to the present invention. FIG. 2 is an enlarged view of the incident portion and body portion of a light guide provided in a vehicle lamp according to the present invention. FIG. 3 is a drawing illustrating an example of a material layer being formed in a second section of a vehicle lamp according to the present invention. FIG. 4 is a drawing illustrating another example of a material layer being formed in a second section of a vehicle lamp according to the present invention. FIG. 5 is an enlarged perspective view illustrating the indented area of ​​a light guide provided in a vehicle lamp according to the present invention. FIG. 6 is a plan view showing an enlarged view of the indented area of ​​a light guide provided in a vehicle lamp according to the present invention. Specific details for implementing the invention

[0030] Hereinafter, a vehicle lamp and a vehicle according to the present invention will be described with reference to the drawings.

[0032] Vehicle lamps

[0033] FIG. 1 is a side view illustrating a vehicle lamp according to the present invention, and FIG. 2 is an enlarged view illustrating the incident portion and body portion of a light guide provided in a vehicle lamp according to the present invention. FIG. 3 is a drawing illustrating one example of a material layer being formed in a second section of a vehicle lamp according to the present invention, and FIG. 4 is a drawing illustrating another example of a material layer being formed in a second section of a vehicle lamp according to the present invention. In addition, FIG. 5 is an enlarged perspective view illustrating an indented area of ​​a light guide provided in a vehicle lamp according to the present invention, and FIG. 6 is an enlarged plan view illustrating an indented area of ​​a light guide provided in a vehicle lamp according to the present invention.

[0035] A vehicle lamp (10, hereinafter referred to as 'lamp') according to the present invention may be a low-beam lamp for forming a low-beam pattern.

[0036] More specifically, as illustrated in FIG. 1, the lamp (10) according to the present invention may include a light source (100) that emits light. The light source (100) may be an LED, but the type of light source (100) is not limited thereto.

[0037] The lamp (10) may include a collimator (200) which is provided in front of the light source (100) and into which light emitted from the light source (100) is incident. The collimator (200) may be configured to convert the light incident from the light source (100) into parallel light and emit it. Since the optical principle of light incident on the collimator (200) being emitted as parallel light is already widely known, it is replaced with the previously known content.

[0038] Referring further to FIG. 1, the lamp (10) according to the present invention may further include a light guide body (300) which is provided in front of a light source (100) and a collimator (200) and into which light emitted from the collimator (200) is incident.

[0039] More specifically, light emitted from a light source (100), passing through a collimator (200), and incident on a light guide (300) can move forward through total internal reflection within the light guide (300) and then be emitted from the light guide (300). As described below, some of the light incident on the light guide (300) may be emitted forward, while other parts may be blocked from being emitted forward. Accordingly, the light emitted from the light guide (300) can form a predetermined beam pattern. The beam pattern may be a low beam pattern as described above.

[0040] Meanwhile, the light guide (300) may be made of a transparent material that transmits light. For example, the light guide (300) may be made of a plastic material. In this case, since it is easy to mold the light guide (300), it may be advantageous in terms of ease of manufacturing. In particular, as will be described later, according to the present invention, the light guide (300) has an irregular shape compared to an inner lens according to the prior art, so having the light guide (300) made of a plastic material may have a significant advantage in terms of ease of manufacturing. As an example, the light guide (300) may be made of PC (polycarbonate) or PMMA (polymethyl methacrylate). However, it goes without saying that the light guide (300) may be made of glass, unlike the above description.

[0042] Referring further to FIG. 1, the light guide (300) may include an incident section (310) provided at the rear of the light guide (300) and facing the collimator (200) to which light emitted from the collimator (200) is incident, an exit section (320) provided at the front of the light guide (300) to which light emitted from the incident section (310) is incident, and a body section (330) connecting the incident section (310) and the exit section (320) and forming the body of the light guide (300). The incident section (310), the exit section (320), and the body section (330) may be formed integrally. The fact that the inlet section (310), the outlet section (320), and the body section (330) are formed as a single unit may mean that the inlet section (310), the outlet section (320), and the body section (330) are manufactured from a single material and are therefore inseparably combined with each other. Accordingly, the inlet section (310) can be connected to the rear of the body section (330), and the outlet section (320) can be connected to the front of the body section (330).

[0043] Meanwhile, as illustrated in FIG. 1, the incident section (310) may have a shape that protrudes convexly backward, and the exit section (320) may have a shape that protrudes convexly forward. Accordingly, the focal point (FI) of the incident section (310) may be located in front of the incident section (310), and the focal point (FO) of the exit section (320) may be located behind the exit section (320). More specifically, the focal point (FI) of the incident section (310) and the focal point (FO) of the exit section (320) may be located within the body section (330).

[0045] Additionally, the incident section (310), the exit section (320), and the body section (330) can be distinguished based on the shape of the light guide (300). As described above, the incident section (310) may have a shape that protrudes convexly backward, and the exit section (320) may have a shape that protrudes convexly forward. Additionally, the upper and lower surfaces of the body section (330) may have a flat shape. Accordingly, a boundary between the incident section (310) and the body section (330) may be formed at the point where the curved surface of the incident section (310) and the flat surface of the body section (330) meet, and a boundary between the exit section (320) and the body section (330) may be formed at the point where the curved surface of the exit section (320) and the flat surface of the body section (330) meet.

[0047] As described above, the lamp (10) according to the present invention may be a lamp for forming a low beam pattern. To this end, according to the present invention, the body portion (330) of the light guide (300) may include an indented area (330a) formed on the lower surface of the body portion (330) and having an upwardly indented shape. Accordingly, among the light emitted from the light source (100) and incident on the light guide (300), the light reaching the indented area (330a) may be blocked from moving forward by being reflected from the indented area (330a). Accordingly, a low beam pattern with a cutoff line formed therein may be formed. More specifically, the indented area (332) may further include a cutoff portion having a shape corresponding to the cutoff line of the low beam pattern. Detailed information regarding the cutoff portion will be described later.

[0049] As illustrated in FIGS. 1 and 2, the indentation area (330a) may include a first section (331) that extends upwardly at an angle as it moves forward, and a second section (332) that is provided in front of the first section (331) and extends forward or downward from the first section (331). For example, the first section (331) may have a planar shape that extends upwardly at an angle as it moves forward.

[0051] At this time, referring to FIGS. 3 and 4, a material layer (340) that reflects or absorbs light emitted from a light source (100) may be formed on the surface of the second section (332). Accordingly, among the light incident on the light guide body (300), the light that reaches the second section (332) may be reflected by the material layer (340) and move upward, and accordingly, a beam pattern having a predetermined shape may be emitted in front of the lamp (10). The material layer (340) formed in the second section (332) may serve to block the light from moving forward. More preferably, according to the present invention, the aforementioned material layer (340) may be formed only in the second section (332) among the first section (331) and the second section (332).

[0053] As described above, since the material layer (340) is formed only in the second section (332), the material layer may not be formed on the surface of the first section (331). At this time, as described above, since the light guide body (300) may be made of a transparent material, the surface of the first section (331) may have a transparent state.

[0054] However, according to the present invention, even though a material layer is not formed on the surface of the first section (331), light emitted from the light source (100) can be blocked from moving forward by being reflected in the first section (331). More specifically, light reaching the first section (331) can be blocked from moving forward by total internal reflection.

[0056] As described above, the focal point (FI) of the incident section (310) and the focal point (FO) of the exit section (320) may be located within the body section (330). In particular, according to the present invention, in order to maximize the light concentration efficiency by the light guide (300), the focal point (FI) of the incident section (310) and the focal point (FO) of the exit section (320) may be located adjacent to each other or coincide with each other. Accordingly, light incident on the light guide (300) through the incident section (310) is concentrated at a high rate at the focal point (FI) of the incident section (310), then emitted from the focal point (FO) of the exit section (320) and passes through the exit section (320) to form a beam pattern.

[0057] However, in order to satisfy the regulations regarding the light intensity required for the low beam pattern, it is necessary to form a high light intensity at the center of the cutoff line of the low beam pattern. To achieve this, the focal point (FI) of the incident part (310) and the focal point (FO) of the exit part (320) need to be formed near the indentation area (330a) where the cutoff part is formed. Accordingly, the light emitted from the light source (100) is mainly concentrated near the indentation area (330a).

[0058] At this time, if the aforementioned material layer (340) is formed in the first section (331) of the indentation area (330a) where light reaches first, the temperature of the first section (331) rises as the material layer (340) absorbs the light. This may cause deformation and damage to the indentation area (330a), including the first section (331).

[0060] However, according to the present invention, the aforementioned problems of deformation and damage can be resolved by forming a material layer (340) that absorbs or reflects light in the second section (332) rather than in the first section (331). That is, according to the present invention, a significant proportion of the light emitted from the light source (100) and reaching the first section (331) is primarily reflected upward from the first section (331) by total reflection, and the remainder passes through the first section (331) due to the light transmittance of the first section (331). The light passing through the first section (331) then reaches the second section (332), and at this time, since the aforementioned material layer (340) is formed in the second section (332), the light can be blocked from proceeding forward. That is, according to the present invention, among the light emitted from the light source (100), the light that must be blocked from moving forward to form a cutoff line of a low beam pattern is primarily blocked by total reflection in the first section (331), and the remainder is secondarily blocked by the material layer (340) in the second section (332). Accordingly, compared to the case where the material layer (340) is formed in the first section (331), the problem of the indented area (330a) being deformed or damaged by the concentrated absorption of light in the first section (331) can be prevented.

[0062] Based on the above description, according to the present invention, the first section (331) needs to be configured so that light emitted from the light source (100) reaches at least a portion of the first section (331) and is totally reflected in the first section (331).

[0063] More preferably, the first section (331) needs to be configured such that light emitted from the light source (100) reaches any area of ​​the first section (331) and is totally reflected in the first section (331). However, the fact that light reaching any area of ​​the first section (331) is totally reflected in the first section (331) does not mean that all the light reaching the first section (331) is totally reflected and that there is no light passing through the first section (331), and it may mean that even if light emitted from the light source (100) reaches any area of ​​the first section (331), at least a portion of it is blocked from moving forward by total reflection in the first section (331).

[0065] Referring further to FIGS. 1 and FIGS. 2, at least a portion of the second section (332) in the lamp (10) according to the present invention may be located forward of the focal point (FO) of the emission unit (320). This may be to prevent light from reaching the second section (332) in a concentrated manner. More specifically, the focal point (FO) of the emission unit (320) may be provided so as to be spaced upward from the second section (332), and may be provided within the front-rear and left-right widths of the second section (332).

[0067] Meanwhile, the second section (332) may be divided into multiple sub-sections. More specifically, the second section (332) may include a second-1 section (332-1) connected to the first section (331) and extending forward from the first section (331), and a second-2 section (332-2) connected to the second-1 section (332-1) and extending downward from the second-1 section (332-1). Accordingly, the second-2 section (332-2) may be provided to face the first section (331) with the second-1 section (332-1) in between.

[0068] Meanwhile, as illustrated in FIG. 3, according to one example of the present invention, the aforementioned material layer (340) may be formed only in the second-2 section (332-2) of the second section (332). Light that has not undergone total internal reflection among the light reaching from the first section (331) passes through the first section (331) and moves forward to the second-2 section (332-2). Therefore, in order for a low beam pattern with a cutoff line to be formed, it is essential that the material layer (340) be formed in the second-2 section (332-2). On the other hand, as illustrated in FIG. 4, according to another example of the present invention, the aforementioned material layer (340) may be formed not only in the second-2 section (332-2) but also in the second-1 section (332-1).

[0070] Meanwhile, as described above, the second section (332) may include a cutoff section. More specifically, referring to FIGS. 5 and 6, the second-1 section (332-1) may have a cutoff section (333) having a step shape. The cutoff section (333) may be configured to block a portion of the light emitted from the light source (100) to form a cutoff line that forms the upper boundary of the low beam pattern formed by the lamp (10) according to the present invention.

[0071] More specifically, the cutoff portion (333) may include an upper surface (333a) provided on one side in the left-right direction, a lower surface (333b) provided on the other side in the left-right direction and lower than the upper surface (333a), and an inclined surface (333c) that connects the upper surface (333a) and the lower surface (333b) and extends at an angle.

[0073] Meanwhile, according to the present invention, the incident portion (310) may have a symmetrical shape in the vertical direction and the horizontal direction, respectively. As an example, the incident portion (310) may be an anamorphic lens in which the focal point in the vertical direction and the focal point in the horizontal direction are different. However, the shape of the incident portion (310) is not limited thereto.

[0075] At this time, if the vertical height of the incident section (310) is denoted as h, the horizontal distance from the focal point (FI) of the incident section (310) to the incident section (310) is denoted as d, and the angle of incidence of the incident light (L) incident from the incident section (310) to the first section (331) is denoted as θ, then the light guide body (300) in the lamp (10) according to the present invention can be provided to satisfy the following Equation 1.

[0077] Equation 1: tan (90°-θ) ≥ (h / 2d).

[0079] This may be so that at least some of the light that reaches the first section (331) is totally reflected in the first section (331).

[0081] Meanwhile, according to one example of the present invention, the optical axis (AO) of the emission section (320) and the direction in which the second-1 section (332-1) extends in the front-rear direction may be parallel to each other. In this case, since the structure of the light guide body (300) including the emission section (320) and the indentation area (330a) is simplified, there may be an advantage that the manufacturing of the light guide body (300) is easy.

[0082] However, in contrast to this, according to another example of the present invention, the optical axis (AO) of the emission unit (320) and the direction in which the second-1 section (332-1) extends in the front-rear direction may intersect each other at a predetermined angle. For example, according to another example of the present invention, the second-1 section (332-1) may be formed to be inclined upward as it moves forward relative to the optical axis (AO) of the emission unit (320). Alternatively, according to another example of the present invention, the second-1 section (332-1) may be formed to be inclined downward as it moves forward relative to the optical axis (AO) of the emission unit (320). In particular, when the second-1 section (332-1) is formed to be inclined downward as it moves forward compared to the optical axis (AO) of the emission section (320), the light reflected from the second-1 section (332-1) among the light incident in the light guide body (300) cannot reach the emission section (320) and can be minimized from escaping through the upper surface of the body section (330), thus having an advantage in that the light efficiency of the lamp (10) can be improved.

[0084] Meanwhile, as illustrated in FIG. 1, according to the present invention, the size of the incident section (310) may be larger than the size of the exit section (320). More specifically, the vertical height of the incident section (310) may be greater than the vertical height of the exit section (320), and the horizontal width of the incident section (310) may be greater than the horizontal width of the exit section (320). This may be intended to maximize the light collection efficiency when light incident on the incident section (310) is emitted to the outside through the exit section (320).

[0086] vehicle

[0087] A vehicle according to the present invention may include a vehicle lamp (10). At this time, the lamp (10) may be a lamp for forming a low beam pattern.

[0088] At this time, the lamp (10) includes a light source (100) that emits light, and a light guide body (300) that is provided in front of the light source (100) and into which the light is incident, and the light guide body (300) may be made of a material that transmits the light.

[0089] Additionally, the light guide body (300) may include a body portion (330) that forms the body of the light guide body (300), and the body portion (330) may include an indented area (330a) formed on the lower surface of the body portion (330) and indented upward.

[0090] The indentation area (330a) may include a first section (331) that extends upwardly at an angle as it moves forward, and a second section (332) that is provided in front of the first section (331) and extends forward or downward from the first section (331).

[0091] At this time, according to the present invention, a material layer (340) that reflects or absorbs the light may be formed on the surface of the second section (332).

[0093] Meanwhile, all the above-described details regarding the vehicle lamp according to the present invention may be equally applied to the vehicle according to the present invention.

[0095] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various implementations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below by those skilled in the art to which the present invention belongs. Explanation of the symbols

[0097] 10: Lamp 100 : Light source 200: Collimator 300 : Light guide 310 : Admission Department 320 : Chulsabu 330 : Body part 330a : Indentation area 331: Section 1 332 : Section 2 332-1 : Section 2-1 332-2 : Section 2-2 333 : Cut-off section 333a : Upper surface 333b : Bottom surface 333c : Inclined surface 340 : Material layer L: Incident light FI: Focus of the incident section FO: Focus of the shooting unit AO: Optical axis of the emission unit h: Height of the incident section in the vertical direction d: Left-right distance from the focal point of the incident section to the incident section θ: Angle of incidence of light

Claims

Claim 1 A vehicle lamp comprising: a light source for irradiating light; a light guide body provided in front of the light source and into which the light is incident; wherein the light guide body is made of a material that transmits the light, and the light guide body comprises: a body portion forming the body of the light guide body; wherein the body portion comprises an indented area formed on the lower surface of the body portion and indented upward; wherein the indented area comprises: a first section extending upwardly at an angle as it moves forward; and a second section provided in front of the first section and extending forward or downward from the first section; wherein a material layer that reflects or absorbs the light is formed on the surface of the second section; wherein the second section comprises: a second-1 section connected to the first section and extending forward from the first section; and a second-2 section connected to the second-1 section and extending downward from the second-1 section; and wherein the material layer is formed only in the second-2 section among the second sections. Claim 2 In claim 1, the material layer is formed only in the second section among the first section and the second section, for a vehicle lamp. Claim 3 A vehicle lamp in claim 1, wherein the first section is configured such that light emitted from the light source reaches at least a portion of the first section and is totally reflected in the first section. Claim 4 A vehicle lamp in claim 1, wherein the first section is configured such that light emitted from the light source reaches any region of the first section and is totally reflected in the first section. Claim 5 A vehicle lamp according to claim 1, wherein the light guide comprises: an incident portion connected to the rear of the body portion; and an exit portion connected to the front of the body portion; wherein the incident portion has a shape protruding convexly to the rear, and the exit portion has a shape protruding convexly to the front. Claim 6 In claim 5, a vehicle lamp wherein at least a portion of the second section is provided ahead of the focal point (FO) of the emission section. Claim 7 In claim 5, the focal point (FO) of the emission section is provided to be spaced upward from the second section, and is a vehicle lamp provided within the front-rear and left-right widths of the second section. Claim 8 delete Claim 9 A vehicle lamp comprising: a light source for irradiating light; a light guide body provided in front of the light source and into which the light is incident; wherein the light guide body is made of a material that transmits the light, and the light guide body comprises: a body portion forming the body of the light guide body; wherein the body portion comprises an indented area formed on the lower surface of the body portion and indented upward; wherein the indented area comprises: a first section extending upwardly at an angle as it moves forward; and a second section provided in front of the first section and extending forward or downward from the first section; wherein a material layer that reflects or absorbs the light is formed on the surface of the second section; wherein the second section comprises: a second-1 section connected to the first section and extending forward from the first section; and a second-2 section connected to the second-1 section and extending downward from the second-1 section; and wherein the material layer is formed in the second-1 section and the second-2 section. Claim 10 In claim 5, if the vertical height of the incident section is h, the horizontal distance from the focal point (FI) of the incident section to the incident section is d, and the angle of incidence of the incident light incident from the incident section and reaching the first section with respect to the first section is θ, then the light guide is a vehicle lamp configured to satisfy the following Equation 1, Equation 1: tan (90°-θ) ≥ (h / 2d). Claim 11 In claim 10, the incident portion is a vehicle lamp having a symmetrical shape in the up-down direction and the left-right direction, respectively. Claim 12 In claim 5, the optical axis (AO) of the emission section and the direction in which the second-1 section extends in the front-rear direction are parallel to each other in a vehicle lamp. Claim 13 A vehicle lamp in claim 5, wherein the optical axis (AO) of the emission section and the direction in which the 2-1 section extends in the front-rear direction intersect each other at a predetermined angle. Claim 14 A vehicle lamp in claim 13, wherein the 2-1 section is formed to be inclined upward as it moves forward, compared to the optical axis (AO) of the emission section. Claim 15 A vehicle lamp in claim 13, wherein the 2-1 section is formed to be inclined downward as it moves forward, compared to the optical axis (AO) of the emission section. Claim 16 In claim 5, the 2-1 section comprises a cut-off portion having a stepped shape; wherein the cut-off portion comprises an upper surface provided on one side in the left-right direction; a lower surface provided on the other side in the left-right direction and provided below the upper surface; and an inclined surface connecting the upper surface and the lower surface and extending at an angle; a vehicle lamp. Claim 17 In claim 5, a vehicle lamp in which the vertical height of the inlet section is greater than the vertical height of the outlet section. Claim 18 In claim 17, a vehicle lamp in which the left-right width of the inlet section is greater than the left-right width of the outlet section. Claim 19 A vehicle lamp comprising: in claim 1, a collimator provided in front of the light source and into which light emitted from the light source is incident. Claim 20 A vehicle comprising a vehicle lamp, wherein the vehicle lamp comprises: a light source that irradiates light; a light guide body provided in front of the light source and into which the light is incident; wherein the light guide body is made of a material that transmits the light, and the light guide body comprises: a body portion forming the body of the light guide body; wherein the body portion comprises: an indented region formed on the lower surface of the body portion and indented upward; wherein the indented region comprises: a first section extending upwardly at an angle as it moves forward; and a second section provided in front of the first section and extending forward or downward from the first section; wherein a material layer that reflects or absorbs the light is formed on the surface of the second section; and wherein the second section comprises: a second-1 section connected to the first section and extending forward from the first section; and a second-2 section connected to the second-1 section and extending downward from the second-1 section. A vehicle comprising, wherein the material layer is formed only in the 2-2 section of the 2 section.

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