Lamp

Abstract

Disclosed is a luminaire comprising: a first optical module forming a wide region of a low beam light distribution pattern; and a second optical module forming a hot zone of a low beam light distribution pattern, the hot zone having a higher luminous intensity than the wide zone, each of the first and second optical modules including: a light source outputting light; a light input unit to which the light output from the light source is input; a light output portion disposed on a front side of the light input portion and outputting light that has passed through the light input portion; and a guide portion provided between the light input portion and the light output portion to guide a travel of the light that has passed through the light input portion to the light output portion.

Description

Technical Field

[0001] The present disclosure relates to a lamp. Background Art

[0002] Various types of vehicle lamps are installed on the vehicle according to their functions. For example, a low beam lamp, a high beam lamp, and a daytime running light (DRL) lamp are installed on the front side of the vehicle. Among them, the low beam lamp forms a light distribution pattern having a cutoff line shape at its upper portion.

[0003] In detail, the low beam lamp has a primary optical system collecting light output from a light source, a shield forming a cutoff shape, and a secondary optical system focusing on the shield and outputting the light to the front side to form a light distribution pattern.

[0004] About half of the light passing through the primary optical system is shielded by the shielding member and cannot be output from the secondary optical system. Therefore, about half of the light passing through the primary optical system cannot be used as light to form a light distribution pattern, and thus, the light output efficiency of the lamp is reduced. Summary of the invention

[0005] The present disclosure aims to solve the above-mentioned problems occurring in the prior art while keeping the advantages achieved by the prior art intact.

[0006] One aspect of the present disclosure provides a luminaire which uses most of light passing through a main optical system as light for forming a light distribution pattern, thereby improving light output efficiency.

[0007] The technical problems to be solved by the present disclosure are not limited to the above-mentioned problems, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art to which the present disclosure belongs from the following description.

[0008] According to one aspect of the present disclosure, a lamp includes: a first optical module, which forms a wide area of ​​a low-beam light distribution pattern; and a second optical module, which forms a hot area of ​​the low-beam light distribution pattern, and the luminous intensity of the hot area is higher than the luminous intensity of the wide area, each of the first optical module and the second optical module includes: a light source, which outputs light; a light input portion, which is configured to receive light output from the light source; a light output portion, which is arranged at a front side of the light input portion and outputs light passing through the light input portion; and a guide portion, which is arranged between the light input portion and the light output portion to guide the travel of light passing through the light input portion to the light output portion, and when the light input portion and the guide portion of the first optical module are a first light input portion and a first guide portion, and the light input portion and the guide portion of the second optical module are a second light input portion and a second guide portion, the shape of the first guide portion on one side of the first light input portion is different from the shape of the second guide portion on one side of the second light input portion.

[0009] Furthermore, a diameter of the first light input portion may be smaller than a diameter of the second light input portion.

[0010] In addition, a first light input groove recessed to the front side can be formed on the rear side of the first light input portion, a second light input groove recessed to the front side can be formed on the rear side of the second light input portion, and the diameter of the first light input groove can be smaller than the diameter of the second light input groove.

[0011] In addition, the upward / downward height of the lower end of the first light input portion can be equal to or greater than the upward / downward height of the first light output optical axis which is the optical axis of the first light output portion, the first light output portion being the light output portion of the first optical module, and the center of the first light input portion can be located between the upper end of the first light output portion and the first light output optical axis.

[0012] Furthermore, a first light input optical axis as an optical axis of the first light input portion may be formed to be inclined toward the front and the bottom with respect to the first light output optical axis, and may pass through a focal point of the light output portion.

[0013] In addition, the first optical module may include: a first reflection area, which is arranged between the first light input portion and the first light output portion which is the light output portion of the first optical module with respect to the forward / backward direction and reflects a portion of the light passing through the first light input portion; and a first extension surface, which extends between the rear end of the first reflection area and the lower end of the first light input portion.

[0014] Furthermore, the first extension surface extends from the rear end of the first reflection region to the rear side to be inclined toward the lower side with respect to the first light input optical axis which is the optical axis of the first light input portion.

[0015] Furthermore, when the optical axis of the first light output portion is the first light output optical axis, an angle formed by the first light output optical axis and the first extension surface may be smaller than an angle formed by the first light output optical axis and the first light input optical axis.

[0016] In addition, when the optical axis of the second light input portion is a second light input optical axis, and the optical axis of the second light output portion as the light output portion of the second optical module is a second light output optical axis, the second light input optical axis and the second light output optical axis can be formed to be parallel to each other.

[0017] In addition, when the light output portion of the second optical module is a second light output portion, the second optical module may further include: a second reflection area, which is arranged between the second light input portion and the second light output portion with respect to the forward / backward direction and reflects a portion of the light passing through the second light input portion; and a second extension surface, which extends between the rear end of the second reflection area and the lower end of the second light input portion, and the second light output optical axis serving as the optical axis of the second light output portion can extend along the forward / backward direction, and the second extension surface can extend to the lower side and rear side relative to the second light output optical axis and can be arranged to overlap with the second light input portion along the forward / backward direction.

[0018] Furthermore, a first brightness which is a maximum brightness of light passing through the first light input portion may be smaller than a second brightness which is a maximum brightness of light passing through the second light input portion.

[0019] In addition, when the light source and the light output portion of the first optical module are respectively the first light source and the first light output portion, the first light input portion may include a first light input central portion, the first light input central portion refracting the first central light which is a part of the light output from the first light source so that the first central light travels toward the focus of the first light output portion, and when the light source and the light output portion of the second optical module are respectively the second light source and the second light output portion, the second light input portion may include a second light input central portion, the second light input central portion refracting the second central light which is any part of the light output from the second light source so that the second central light travels toward the focus of the second light output portion, and a first distance which is the spacing distance between the first light input central portion and the first light source may be smaller than a second distance which is the spacing distance between the second light input central portion and the second light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description in conjunction with the accompanying drawings:

[0021] Figure 1 is a perspective view of a lamp according to a first embodiment of the present disclosure;

[0022] Figure 2 is a longitudinal cross-sectional view of a light output portion according to a first embodiment of the present disclosure;

[0023] Figure 3 is a longitudinal cross-sectional view of a lamp according to a first embodiment of the present disclosure;

[0024] Figure 4 is a view showing a light input portion provided with an aspherical lens;

[0025] Figure 5 is a view showing a light input portion provided with a TIR lens;

[0026] Figure 6 is a view showing a light source and a light input portion arranged in an upward / downward direction;

[0027] Figure 7 is a longitudinal sectional view of a lamp according to a first modification of the present disclosure;

[0028] Figure 8 is a longitudinal cross-sectional view of a lamp according to a second embodiment of the present disclosure;

[0029] Fig. 9 is a longitudinal sectional view of a lamp according to a second modification of the present disclosure;

[0030] Fig.10 is a longitudinal cross-sectional view of a first optical module according to a third embodiment of the present disclosure;

[0031] Fig.11 is a longitudinal cross-sectional view of a second optical module according to a third embodiment of the present disclosure;

[0032] Fig.12 is a longitudinal sectional view of a lamp according to a fourth embodiment of the present disclosure; and

[0033] Fig.13 is a transverse cross-sectional view of a lamp according to a fifth embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When adding reference numerals to components of the accompanying drawings, it should be noted that the same reference numerals are used to represent the same components even if the same components are drawn in different drawings. In addition, when describing embodiments of the present disclosure, when it is determined that the detailed description of related known configurations and functions may hinder the understanding of the embodiments of the present disclosure, the detailed description thereof will be omitted.

[0035] In addition, when describing the components of the embodiments of the present disclosure, terms such as first, second, "A", "B", (a), and (b) may be used. These terms are used only to distinguish the components, and the nature, order, and sequence of the corresponding components are not limited by these terms. When describing that a certain component is "input to", "pass through", or "output from" a second component, it should be understood that the component can be directly input to, pass through, or output from the second component, but a third component can be "input" or "pass through" or "output" between components.

[0036] First embodiment

[0037] In the following, reference will be made to Figures 1 to 6 A lamp 10 a according to a first embodiment of the present disclosure is described.

[0038] Reference Figure 1 , the lamp 10a may be a vehicle lamp provided in a vehicle. For example, the lamp 10a may be a front lamp provided on the left and right sides of the front side of the vehicle. The lamp 10a may form a low-beam light distribution pattern to ensure visibility of the driver. The low-beam light distribution pattern may include a cutoff line, a hot zone, and a wide zone. The cutoff line may define the upper end of the low-beam light distribution pattern. The hot zone may define the central portion of the low-beam light distribution pattern. In addition, the wide zone may define a peripheral portion of the light distribution pattern surrounding the hot zone, and the luminous intensity may be lower than the luminous intensity of the hot zone. The lamp 10a may include a light source 100a, a light input portion 200a, a light output portion 300a, a shielding portion 400a, and a guiding portion 500a.

[0039] The light source 100a may output light. For example, the light source 100a may be a light emitting diode (LED). The light output from the light source 100a may propagate around a light source optical axis 100x. The light source optical axis 100x may represent the optical axis of the light source 100a. The light source optical axis 100x may be defined as an imaginary straight line extending through or through the center of the light source 100a and along the traveling direction of the output light. The light source optical axis 100x may be formed to be inclined toward the front side and the lower side relative to the forward / backward direction "A".

[0040] The light emitted from the light source 100a may be input to the light input portion 200a. The light passing through the light input portion 200a may be input to the guide portion 500a. The light input to the guide portion 500a may travel toward the focus of the light output portion 300a. In other words, the light input to the guide portion 500a may converge at the focus of the light output portion 300a.

[0041] The light input portion 200a may be disposed on the front side of the light source 100a. In addition, as an example, the light input portion 200a may be spaced apart from the light source 100a. In addition, the front end of the light input portion 200a may be attached to the rear end of the guide portion 500a. In other words, the light input portion 200a may be disposed between the light source 100a and the guide portion 500a with respect to the forward / rearward direction "A".

[0042] A light input groove recessed to the front side may be formed in the light input portion 200a. Light output from the light source 100a may pass through the light input groove and then may reach a light input region, which is a region surrounding the light input groove. Light reaching the light input region may be refracted in the light input region.

[0043] Return to reference Figure 3 , the light input optical axis 200x as the optical axis of the light input portion 200a can be formed in parallel with the light source optical axis 100x. The light input optical axis 200x can be defined as an imaginary straight line passing through the center of the light input portion 200a and the focus of the light output portion 300a. In addition, the focus of the light output portion 300a can be set on the upper side of the front end of the reflection area 410a to be described later.

[0044] The features of the light source 100a, light input portion 200a, light output portion 300a, shielding portion 400a and guiding portion 500a described in the specification can be understood as features that can satisfy geometric features, wherein the light input optical axis 200x passes through or extends through the center of the light input portion 200a and the focus of the light output portion 300a.

[0045] In addition, the geometric characteristics of the light source optical axis 100x, the light input optical axis 200x and the light output optical axis 300x in the specification can be satisfied by a combination of at least some of the configurations of the first to fifth embodiments in the specification, and the satisfaction is not limited to a combination of configurations according to any one embodiment.

[0046] In detail, any one of the light sources 100a, 100b, 100c1, 100c2, 100d and 100e, any one of the light input parts 200a, 200a', 200a", 200a'", 200b, 200c1, 200c2, 200d and 200e, any one of the light output parts 300a, 300b, 300c1, 300c2, 300d and 300e, any one of the shielding parts 400a, 400b, 400c1, 400c2 and 400d, and any one of the guide parts 500a, 500b, 500c1, 500c2, 500d and 500e, which are components according to the first to fifth embodiments in this specification, may be combined with each other. And only the components of any one embodiment are not combined in a limiting manner.

[0047] The light input optical axis 200x and the light output optical axis 300x may not be parallel to each other. The light output optical axis 300x may represent the optical axis of the light output portion 300a. For example, the light input optical axis 200x may be an imaginary straight line extending obliquely toward the front and lower sides relative to the light output optical axis 300x.

[0048] In other words, when the lamp 10a is viewed in the left / right direction, the light input optical axis 200x and the light output optical axis 300x may intersect each other at one point. As a detailed example, the light input optical axis 200x and the light output optical axis 300x may intersect each other on the upper side of the front end of the reflection area 410a.

[0049] Meanwhile, the concept of the present disclosure is not limited thereto, and according to a first modification of the present disclosure, the light input optical axis 200x and the light source optical axis 100x-1 may not be parallel to each other. Figure 7 , the light source optical axis 100x-1 may be formed parallel to the forward / rearward direction "A". In other words, when the lamp 10a is viewed in the left / right direction, the light source optical axis 100x-1 and the light input optical axis 200x may intersect each other at one point. In addition, the light source optical axis 100x-1 may be arranged parallel to the light output optical axis 300x.

[0050] Thus, when the light source optical axis 100x-1 is formed parallel to the forward / rearward direction "A", the heat sink (not shown) on which the light source 100a is mounted may be oriented not to be tilted relative to the forward / rearward direction "A". For example, the heat sink may be disposed at the rear side of the light source 100a.

[0051] In addition, the front end of the reflective region 410b may be disposed on the lower side of the focal point of the light output portion 300a, or may be located at the same height as that of the focal point.

[0052] The light input portion 200 a may include a light input central portion 210 a and a light input outer region portion 220 a .

[0053] Light input to the light input central portion 210a may be refracted in the light input central portion 210a and may then travel to the focus of the light output portion 300a. The light input central portion 210a may define a central portion of the light input portion 200a. The light input central portion 210a may be disposed to face the light source 100a. The light input central portion 210a may have a shape convex to the rear side. The rear side of the light input central portion 210a may define the front side of the light input area.

[0054] Light input to the light input outer section 220a may be totally reflected in the light input outer section 220a, and may then travel to the focus of the light output section 300a. For example, light may be input to the inner area of ​​the light input outer section 220a, and the light may be totally reflected in the outer area of ​​the light input outer section 220a. The inner area of ​​the light input outer section 220a may define the inner circumferential surface of the light input area. For example, the inner area of ​​the light input outer section 220a may extend from the rear side to the rear side of the light input central section 210a. In addition, the outer area of ​​the light input outer section 220a may extend from the rear end of the inner area of ​​the light input outer section 220a to the front side.

[0055] Light passing through the inner area of ​​the light input outer area 220a may be refracted and then may reach the outer area of ​​the light input outer area 220a. The light input outer area 220a may define the outer area of ​​the light input portion 200a. The light input outer area 220a may have a shape surrounding the light input central portion 210a.

[0056] Meanwhile, the light input part 200a according to the first embodiment of the present disclosure is not limited to the above contents, and reference is made to Figure 4 and Figure 5 The light input parts 200a' and 200a" according to the embodiment different from the first embodiment may be provided as collimators. The collimators may form parallel light (eg, light parallel to the forward / backward direction).

[0057] The light input parts 200a' and 200a" may be disposed between the light source 100a and the guide part 500a with respect to the forward / rearward direction "A". In addition, the light input parts 200a' and 200a" may be disposed to be spaced apart from the guide part 500a.

[0058] For example, refer to Figure 4 , the light input portion 200a' may have a shape of an aspherical lens. As another example, refer to Figure 5 , the light input portion 200a" may have a shape of a total internal reflection (TIR) ​​lens. The TIR lens may be referred to as a "total reflection lens".

[0059] Meanwhile, the light input parts 200a′ and 200a″ according to the embodiments different from the first embodiment of the present disclosure are not limited to the above contents, and refer to Figure 6 , the light input portion 200 a ′″ according to an embodiment different from the first embodiment may be oriented in an upward / downward direction “H”.

[0060] The light input portion 200a'" and the light source 100a may be arranged to be spaced apart from each other along the upward / downward direction "H". For example, the light input portion 200a'" may be disposed at a lower side of the light source 100a. In addition, the light input portion 200a'" may be attached to an upper end of the guide portion 500a.

[0061] The guide portion 500a according to the first embodiment and other embodiments may include an upward / downward guiding area, a reflective guiding area, and a forward / backward guiding area. The upward / downward guiding area may extend from the light input portion 200a"' to the downward side. The reflective guiding area may extend from the lower end of the upward / downward guiding area to the front side. In the reflective guiding area, light passing through the light input portion 200a"' may be reflected and may travel toward the shielding portion 400a. The forward / backward guiding area may extend along the forward / backward direction "A" from the front end of the reflective guiding area to the light output portion 300a.

[0062] Reference again Figure 2 , the light passing through the guide portion 500a can be output from the light output portion 300a to the outside of the lamp 10a. The light output from the light output portion 300a can travel to the front side. The light output portion 300a can be arranged at the front side of the guide portion 500a. The light output portion 300a can have a shape convex to the front side. For example, the light output portion 300a can be an aspherical lens. The light output portion 300a may include an upper light output area 310a and a lower light output area 320a.

[0063] The upper light output region 310a may define the upper portion of the light output portion 300a. For example, the upper light output region 310a may represent an area of ​​the light output portion 300a located on the upper side of the light output optical axis 300x. The light output from the upper light output region 310a may be referred to as "upper light". The curvature of the upper light output region 310a in the upward / downward direction "H" may be referred to as a first curvature.

[0064] The upper light output area 310a may have a shape that is symmetrical in the left / right direction. In addition, the upper light output area 310a may have a shape that is rotationally symmetrical relative to the light output optical axis 300x. For example, when the right side area of ​​the upper light output area 310a (the area defining the right side of the upper light output area 310a) is rotated around the light output optical axis 300x by a specific angle, the right side area of ​​the rotated upper light output area 310a may completely overlap with the left side area of ​​the unrotated upper light output area 310a (the area defining the left side of the upper light output area 310a).

[0065] The lower light output area 320a may define the lower part of the light output portion 300a. For example, the lower light output area 320a may represent an area of ​​the light output portion 300a located on the lower side of the light output optical axis 300x. The light output from the lower light output area 320a may be referred to as "lower light". The curvature of the lower light output area 320a in the upward / downward direction "H" may be referred to as a second curvature.

[0066] The lower light output area 320a may have a shape that is symmetrical in the left / right direction. In addition, the lower light output area 320a may have a shape that is rotationally symmetrical relative to the light output optical axis 300x. For example, when the right side area of ​​the lower light output area 320a (the area defining the right side of the lower light output area 320a) is rotated around the light output optical axis 300x by a specific angle, the right side area of ​​the rotated lower light output area 320a may completely overlap with the left side area of ​​the unrotated lower light output area 310a (the area defining the left side of the lower light output area 320a). The first curvature and the second curvature may be different from each other. For example, when light having the same wavelength is output from the upper light output area 310a and the lower light output area 320a, respectively, the refractive index may be different. As another example, the upper light output focus as the focus of the upper light output area 310a and the lower light output focus as the focus of the lower light output area 320d may be different from each other.

[0067] The upper light output focus may be located on the light output optical axis 300x. In addition, the lower light output focus may be located at the rear side of the upper light output focus. For example, when parallel light traveling toward the rear side is input from the outside to the lower light output region 320a, the parallel light input to the lower light output region 320d may pass through the region located at the rear side of the upper light output focus.

[0068] In addition, as an example, when the first curvature and the second curvature are different, a step may be formed in a connection region which is a region where the upper light output region 310 a and the lower light output region 320 a are connected to each other.

[0069] As another example, when no step is formed in the connection area, the upper light output area 310a has a shape that is symmetrical in the left / right direction and rotationally symmetrical with respect to the light output optical axis 300x, and the lower light output area 320d may have a shape that is symmetrical in the left / right direction and is not rotationally symmetrical with respect to the light output optical axis 300x. However, the description of the shapes of the upper light output area 310a and the lower light output area 320a corresponds to an exemplary description, and the concept of the present disclosure is not necessarily limited to these examples.

[0070] The first curvature may be greater than the second curvature. In other words, the curvature of the upper light output area 310a relative to the upward / downward direction "H" may be greater than the curvature of the lower light output area 320a. That is, the radius of curvature of the upper light output area 310a in the upward / downward direction "H" may be smaller than the radius of curvature of the lower light output area 320a in the upward / downward direction "H".

[0071] For example, with reference to light having the same wavelength, the refraction degree of the light output from the upper reference point may be greater than the refraction degree of the light output from the lower reference point. For example, the light output from the upper reference point may be refracted to be inclined toward the lower side relative to the traveling direction of the input light. In addition, the light output from the lower reference point may be refracted to be inclined toward the upper side relative to the traveling direction of the input light.

[0072] The upper reference point may represent any point of the upper light output region 310a, which is spaced from the light output optical axis 300x to the upper side, and the lower reference point may represent any point of the lower light output region, which is spaced from the light output optical axis 300x to the lower side. In addition, the upper reference point and the lower reference point may be located at a position perpendicular to the upward / downward direction "H" and symmetrical to each other relative to an imaginary plane passing through or extending through the light output optical axis 300x. That is, the spacing distance between the upper reference point and the imaginary plane in the upward / downward direction "H" may be the same as the spacing distance between the lower reference point and the imaginary plane in the upward / downward direction "H".

[0073] Furthermore, an angle formed by light input to the upper reference point and the light output optical axis 300x may be the same as an angle formed by light input to the lower reference point and the light output optical axis 300x.

[0074] Return to reference Figure 2 , among the lights output from the upper reference point, the light having the first wavelength, the light having the second wavelength, and the light having the third wavelength may be referred to as the first upper wavelength light Rr1, the second upper wavelength light Rb1, and the third upper wavelength light Rg1, respectively.

[0075] In addition, among the lights output from the lower reference point, the light having the first wavelength, the light having the second wavelength, and the light having the third wavelength may be referred to as first lower wavelength light Rr2, second lower wavelength light Rb2, and third lower wavelength light Rg2, respectively.

[0076] For example, the user may observe light having a first wavelength as red.For example, the first wavelength may be greater than 630 nm and less than 780 nm.

[0077] In addition, as an example, the user may observe light having the second wavelength as blue. The second wavelength may be shorter than the first wavelength. As an example, the second wavelength may be greater than 380 nm and less than 420 nm.

[0078] In addition, as an example, light having a third wavelength may be observed as green. The third wavelength may be shorter than the first wavelength and longer than the second wavelength. For example, the third wavelength may be greater than 420 nm and less than 630 nm.

[0079] Furthermore, the first upper wavelength angle Ar1 which is an angle formed by the first upper wavelength light Rr1 and the light output optical axis 300x may be smaller than the first lower wavelength angle Ar2 which is an angle formed by the first lower wavelength light Rr2 and the light output optical axis 300x.

[0080] Furthermore, the second upper wavelength angle Ab1 which is an angle formed by the second upper wavelength light Rb1 and the light output optical axis 300x may be greater than the second lower wavelength angle Ab2 which is an angle formed by the second lower wavelength light Rb2 and the light output optical axis 300x.

[0081] In addition, the third upper wavelength angle, which is the angle formed by the third upper wavelength light Rg1 and the light output optical axis 300x, may be smaller than the third lower wavelength angle Ag2, which is the angle formed by the third lower wavelength light Rg2 and the light output optical axis 300x. In addition, as an example, the third upper wavelength angle may be 0 degrees. In other words, the third upper wavelength light Rg1 and the light output optical axis 300x may be parallel to each other.

[0082] A portion of the upper light having the first wavelength and a portion of the lower light having the second wavelength may form a cutoff line. For example, a portion of the upper light having the first wavelength may be the first upper wavelength light Rr1, and a portion of the lower light having the second wavelength may be the second lower wavelength light Rb2. As a more detailed example, the first upper wavelength light Rr1 may be red light, the second lower wavelength light Rb2 may be blue light, and the red light and the blue light may overlap each other at the cutoff line.

[0083] In this way, since light components with different wavelengths overlap each other at the cutoff line by the difference between the first curvature and the second curvature, the noticeable appearance of light of a specific wavelength appearing at the cutoff line due to chromatic aberration can be minimized. In other words, due to the chromatic aberration of light components with different wavelengths, the cutoff line observed as purple or blue to the user can be minimized, thereby realizing a light distribution pattern with chromaticity satisfying this law.

[0084] The shielding portion 400a may prevent a portion of the light passing through the light input portion 200a from traveling to the front side. For example, the shielding portion 400a may have a shape that is concave on the upper side. In addition, the shielding portion 400a may be disposed between the light input portion 200a and the light output portion 300a with respect to the forward / rearward direction "A". The shielding portion 400a may include a first area 410a, a second area 420a, and a third area 430a.

[0085] The first region 410a may reflect the first light as any portion of the light passing through the light input portion 200a. For example, the first light may be reflected from the upper surface of the reflection region 410a. The first light reflected from the first region 410a may be output from the upper light output region 310a. The first region 410a may be referred to as a "reflection region 410a".

[0086] The second region 420a may extend from the rear end of the first region 410a to the rear side. For example, the second region 420a may extend obliquely to the rear side relative to the light output optical axis 300x to be inclined toward the lower side. After passing through the light input portion 200a, the light reaching the second region 420a is reflected to the upper side and may be prevented from moving to the front side. The second region 420a may be referred to as a "light shielding region 420a".

[0087] The third region 430a may extend from the front end of the first region 410a to the lower side. For example, the third region 430a may extend obliquely to the lower side to be inclined from the front end of the first region 410a to the front side. When the third region 430a is cut along the upward / downward direction "H", the third region 430a may have a straight line shape. However, the present disclosure is not limited to this example, and when the third region 430a is cut along the upward / downward direction "H", the third region may have a curved shape convex to the rear side.

[0088] The guide portion 500a may guide the light passing through the light input portion 200a to travel to the light output portion 300a. The guide portion 500a may be disposed between the light input portion 200a and the light output portion 300a with respect to the forward / rearward direction "A". For example, the rear end of the guide portion 500a may be connected to the front end of the light input portion 200a, and the front end of the guide portion 500a may be connected to the light output portion 300a. In addition, the light input portion 200a, the light output portion 300a, the shielding portion 400a, and the guide portion 500a may be formed integrally. The light input portion 200a, the light output portion 300a, the shielding portion 400a, and the guide portion 500a may be one lens formed integrally.

[0089] Second embodiment

[0090] In the following, reference will be made to Figure 8 and Fig. 9 A lamp 10b according to a second embodiment of the present disclosure is described. In the description of the lamp 10b according to the second embodiment, the difference from the lamp 10a according to the first embodiment of the present disclosure is mainly described.

[0091] The lamp 10b according to the second embodiment of the present disclosure may include a light source 100b, a light input portion 200b, a light output portion 300b, a shielding portion 400b, and a guide portion 500b. Meanwhile, for the contents regarding the light source 100b, the light input portion 200b, the light output portion 300b, and the guide portion 500b according to the second embodiment of the present disclosure, the description of the light source 100a, the light input portion 200a, the light output portion 300a, and the guide portion 500a according to the first embodiment of the present disclosure is used.

[0092] In addition, the light input portion 200b may include a light input central portion 210b and a light input outer area portion 220b. In addition, the light output portion 300b may include an upper light output area 310b and a lower light output area 320b. For the description of the light input central portion 210b, the light input outer area portion 220b, the upper light output area 310b and the lower light output area 320b according to the second embodiment of the present disclosure, the description of the light input central portion 210a, the light input outer area portion 220a, the upper light output area 310a and the lower light output area 320a according to the first embodiment of the present disclosure is used.

[0093] The shielding portion 400b may include a first region 410b, a second region 420b, and a third region 430b. Meanwhile, for the contents regarding the second region 420b and the third region 430b according to the second embodiment of the present disclosure, the description of the second region 420a and the third region 430a according to the first embodiment of the present disclosure is used.

[0094] Reference Figure 8, the first region 410b may be referred to as a "reflection region 410b". The reflection region 410b may extend parallel to the forward / rearward direction "A". In addition, the reflection region 410b may overlap with the light output optical axis 300x. In other words, as an example, the height of the reflection region 410b in the upward / downward direction "H" may be equal to or less than the height of the light output optical axis 300x.

[0095] For example, when the height of the reflective region 410b in the upward / downward direction "H" is less than the height of the light output optical axis 300x, the reflective region 410b may be spaced apart from the light output optical axis 300x in the upward / downward direction "H". As another example, when the height of the reflective region 410b in the upward / downward direction is the same as the height of the light output optical axis 300x, the reflective region 410b may overlap with the light output optical axis 300x.

[0096] The reflective region 410b may be disposed at a lower side of the light source 100a. In addition, the reflective region 410b may be disposed at a lower side of the center of the light input portion 200a.

[0097] Thus, when the reflection area 410b is parallel to the forward / backward direction "A", the angle formed by the light reaching the reflection area 410b and the light output axis 300x may be the same as the angle formed by the light reflected by the reflection area 410b and the light output axis 300x.

[0098] For example, the reflection introduction angle and the reflection angle can be the same. The reflection introduction angle can be defined as the angle formed by the light output optical axis 300x and an imaginary straight line extending along the reflection introduction direction. In addition, the reflection angle can be defined as the angle formed by the light output optical axis 300x and an imaginary straight line extending along the reflection direction.

[0099] The reflection introduction direction may be defined as the traveling direction of the first light before the first light reaches the reflection area 410b. The reflection direction may be defined as the traveling direction of the first light reflected in the reflection area 410b. The first light may represent any portion of the light output from the light output portion 300a.

[0100] Meanwhile, the concept of the present disclosure is not limited thereto, and reference is made to Fig. 9 , the first region 410b according to the second modification of the present disclosure may include a reflective region 411b and an extension region 412b.

[0101] In addition, the reflection region 411b may not extend parallel to the light output optical axis 300x. For example, the reflection region 411b may extend obliquely to the rear side relative to the light output optical axis 300x to be inclined to the upper side.

[0102] For example, when the luminaire 10b is viewed in the left / right direction, the reflection region 411b and the light output optical axis 300x may form a specific angle. The angle formed by the reflection region 411b and the light output optical axis 300x may be greater than 0 degrees and not greater than 5 degrees. In addition, as an example, the angle formed by the light input optical axis 200x and the light output optical axis 300x may be the same as the angle formed by the reflection region 411b and the output region 213b.

[0103] The height of the front end of the reflection region 411b can be set to be the same as the height of the light output optical axis 300x in the upward / downward direction "H". In addition, the rear end of the reflection region 411b can be set on the upper side of the light output optical axis 300x. Due to the reflection region 411b, the reflection angle can be smaller than the reflection introduction angle.

[0104] In addition, the reflection angle can be less than the reference angle. The reference angle can be defined as the angle formed by the reference line passing through or extending through the upper end of the light output portion 300a and the front end of the reflection area 411b and the light output optical axis 300x when the lamp is observed in the left / right direction. In this way, because the reflection angle is less than the reference angle, the reflection angle can be prevented from becoming too large. In this way, because the reflection angle is not formed too large, the reflected light reaches the rear side of the light output portion 300a, thereby preventing the light from being totally reflected by the light output portion 300a. In addition, because the reflection angle is not formed too large, the light output efficiency of the lamp 10b can be improved by maximizing the amount of light reaching the light output portion 300a.

[0105] In addition, the extension area 412b may extend from the rear end of the reflection area 411b to the lower side. In addition, the lower end of the extension area 412b may be connected to the front end of the second area 420b. In other words, the extension area 412b may extend along the upward / downward direction "H" between the rear end of the reflection area and the front end of the second area 420a. The second area 420b may be referred to as a "light shielding area 420b".

[0106] Third embodiment

[0107] In the following, reference will be made to Fig.10 and Fig.11 The lamps 10c1 and 10c2 according to the third embodiment of the present disclosure are described. The lamps 10c1 and 10c2 may include a first optical module 10c1 and a second optical module 10c2.

[0108] Reference Fig.10 , the first optical module 10c1 may form a wide area of ​​the low-beam light distribution pattern. Meanwhile, the present disclosure is not limited to this example, and the first optical module 10c1 may form the entire low-beam light distribution pattern.

[0109] The first optical module 10c1 includes a first light source 100c1, a first light input portion 200c1, a first light output portion 300c1, a first shielding portion 400c1, and a first guide portion 500c1. For the description of the first light output portion 300c1 and the first guide portion 500c1 according to the third embodiment of the present disclosure, the description of the light output portion 300a and the guide portion 500a according to the first embodiment of the present disclosure is used.

[0110] The first light output portion 300c1 may include a first upper light output area 310c1 and a first lower light output area 320c1. For the description of the first upper light output area 310c1 and the first lower light output area 320c1 according to the third embodiment of the present disclosure, the description of the upper light output area 310a and the lower light output area 320a according to the first embodiment is used.

[0111] A height of a lower end of the first light input portion 200c1 in the upward / downward direction "H" may be equal to or greater than a height of a first light output axis 300x1 in the upward / downward direction. The first light output axis 300x may represent an optical axis of the first light output portion 300c1.

[0112] The center of the first light input portion 200c1 may be located between the upper end of the light output portion 300a and the light output optical axis 300x relative to the upward / downward direction "H". In addition, the width of the first light input portion 200c1 in the upward / downward direction "H" may be smaller than the width of the first light output portion 300c1 in the upward / downward direction "H". For example, the width of the first light input portion 200c1 in the upward / downward direction "H" may be equal to or greater than the width of the first upper light output area 310c1 in the upward / downward direction "H". The first upper light output area 310a may form an upper portion of the first light output portion 300c1. In addition, relative to the forward / backward direction "A", the first light input portion 200c1 may be disposed to face the first upper light output area 310c1.

[0113] The first light input optical axis 200x1, which is the optical axis of the first light input portion 200c1, may be formed parallel to the light source optical axis 100x1, which is the optical axis of the first light source 100c1. In addition, the first light input optical axis 200x1 may be defined as an imaginary straight line passing through or extending through the front end of the first reflection area 410c1 and the center of the first light input portion 200c1. In addition, the first light input optical axis 200x1 may extend obliquely relative to the first light output optical axis 300x1 to be inclined toward the front side and the lower side. The first light output optical axis 300x1 may represent the optical axis of the first light output portion 300c1. The first light output optical axis 300x1 may be parallel to the forward / backward direction "A". The first light input portion 200c1 may include a first light input central portion 210c1 and a first light input outer area portion 220c1.

[0114] The distance between the first light input central portion 210a and the first light source 100c1 may be referred to as a first distance L1. For example, the first distance L1 may correspond to the depth of a first light input groove as a light input groove of the first light input portion 200c1.

[0115] The first light input groove may have a shape that is recessed from the rear side to the front side of the first light input portion 200c1. The first light input groove may be a groove surrounded by an area where light output from the first light source 100c1 of the first light input portion 200c1 is input.

[0116] The first shielding portion 400c1 may include a first region 410c1, a second region 420c1, and a third region 430c1. For the description of the first region 410c1 according to the third embodiment of the present disclosure, the description of the first region 410b according to the second embodiment of the present disclosure is used. The first region 410c1 may be referred to as a "first reflective region 410c1".

[0117] The second area 420c1 may be a surface extending between the rear end of the first reflective area 410c1 and the lower end of the first light input portion 200c1. The second area 420c1 may be referred to as an "extension surface 420c1". The height of the first reflective area 411b in the upward / downward direction "H" may be equal to or greater than the height of the lower end of the first light input portion 200c1 in the upward / downward direction "H". In this way, when the first light input portion 200c1 is disposed on the upper side of the reflective area 411b, light passing through the lower portion of the first light input portion 200c1 may not be shielded by the first shielding portion 400c1, and may be output from the first light output portion 300c1. In other words, since all light passing through the first light input portion 200c1 is output from the first light output portion 300c1, the amount of light output from the first optical module 10c1 is maximized. In this way, since the amount of light output from the first optical module 10c1 is maximized, the output efficiency of the first optical module 10c1 may also be maximized.

[0118] The extension surface 420c1 may extend obliquely to the rear side to be inclined to the upper side. The angle formed by the extension surface 420c1 and the first light output optical axis 300x1 may be smaller than the angle formed by the first light input optical axis 200x1 and the first light output optical axis 300x. The extension surface 420c1 may be exposed to the outside of the first optical module 10c1.

[0119] The third region 430c1 may extend from the front end of the first reflective region 411b to the lower side. For example, the third region 430c1 may extend perpendicularly to the forward / rearward direction "A". In addition, relative to the forward / rearward direction "A", the third region 430c1 may be arranged to face the first lower light output region 320c1. In addition, the width of the third region 430c1 in the upward / downward direction "H" may be the same as the width of the first lower light output region 320a in the upward / downward direction "H".

[0120] Reference Fig.11 , the second optical module 10c2 may form a hot zone of the low-beam light distribution pattern. Meanwhile, the present disclosure is not limited to this example, and the second optical module 10c2 may form the entire low-beam light distribution pattern.

[0121] The wide area of ​​the low beam light distribution pattern formed by the first optical module 10c1 and the hot area of ​​the low beam light distribution pattern formed by the second optical module 10c2 may overlap with each other to form the low beam light distribution pattern.

[0122] The second optical module 10c2 may include a second light source 100c2, a second light input portion 200c2, a second light output portion 300c2, a second shielding portion 400c2, and a second guide portion 500c2. For the description of each of the second light output portion 300c2 and the second guide portion 500c2 according to the third embodiment of the present disclosure, the description of the light output portion 300a and the guide portion 500a according to the first embodiment of the present disclosure is used.

[0123] The second light output portion 300c2 may include a second upper light output area 310c2 and a second lower light output area 320c2. For the description of each of the second upper light output area 310c2 and the second lower light output area 320c2 according to the third embodiment of the present disclosure, the description of the upper light output area 310a and the lower light output area 320a according to the first embodiment is used.

[0124] The second light source optical axis 100x2, which is the optical axis of the second light source 100c2, may extend parallel to the forward / backward direction "A". The second light source optical axis 100x2 may be parallel to the second light input optical axis 200x2, which is the optical axis of the second light input portion 200c2. In addition, the second light source optical axis 100x2, the second light input optical axis 200x2, and the second light output optical axis 300x2 may be parallel to each other. The second light output optical axis 300x2 may represent the optical axis of the second light output portion 300c2.

[0125] The diameter of the second light input portion 200c2 may be different from the diameter of the first light input portion 200c1. For example, the diameter of the first light input portion 200c1 may be smaller than the diameter of the second light input portion 200c2. The diameter of the first light input portion 200c1 may refer to the width of the first light input portion 200c1 in a direction perpendicular to the first light input optical axis 200x1. In addition, the diameter of the second light input portion 200c2 may represent the width of the second light input portion 200c2 in a direction perpendicular to the second light input optical axis 200x.

[0126] The second light input portion 200c2 may include a second light input central portion 210c2 and a second light input outer area portion 220c2. The spacing distance between the second light input central portion 210a and the second light source 100c2 may be referred to as a second distance L2. For example, the second distance L2 may correspond to the depth of the second light input groove as the light input groove of the second light input portion 200c2.

[0127] The second light input groove may have a shape that is recessed from the rear side to the front side of the second light input portion 200c2. The second light input groove may be a groove surrounded by an area where light output from the second light source 100c2 of the second light input portion 200c2 is input.

[0128] In addition, the diameter of the first light input groove may be smaller than the diameter of the second light input groove. For example, the diameter of the first light input groove may represent the width of the first light input groove in a direction perpendicular to the first light input optical axis 200x1. In addition, the diameter of the second light input groove may represent the width of the second light input groove in a direction perpendicular to the second light input optical axis 200x2.

[0129] In addition, the first brightness which is the maximum brightness (maximum luminous intensity) of the light passing through the first light input part 200c1 may be smaller than the second brightness which is the maximum brightness of the light passing through the second light input part 200c2. In addition, the maximum brightness of the first optical module 10c1 may be smaller than the maximum brightness of the second optical module 10c2. In addition, the amount of light output from the first optical module 10c1 may be greater than the amount of light output from the second optical module 10c2. In this way, the second optical module 10c2 has a structure that can achieve high brightness with a small amount of light.

[0130] The brightness of the light passing through the first light input portion 200c1 may refer to the number of light rays within a unit solid angle in the direction of the first light source optical axis 100x1 in the light passing through the first light input portion 200c1. In addition, the brightness of the light passing through the second light input portion 200c2 may refer to the number of light rays within a unit solid angle in the direction of the second light source optical axis 100x2 in the light passing through the second light input portion 200c2.

[0131] In addition, the second distance L2 can be greater than the first distance L1. For example, when the difference between the second distance L2 and the first distance L1 increases, the difference between the second brightness and the first brightness can also increase. In other words, the brightness of the light passing through the light input portion can be changed according to the spacing distance between the light source and the light input outer area.

[0132] The second shielding portion 400c2 may include a first region 410c2, a second region 420c2, a third region 430c2, and a fourth region 440c2. For the description of each of the first region 410c2 and the second region 420c2 according to the third embodiment of the present disclosure, the description of the first region 410a and the second region 420a according to the first embodiment of the present disclosure may be used.

[0133] The third region 430c2 may extend from the front end of the second region 420c2 to the lower side. For example, the third region 430c2 may extend parallel to the upward / downward direction "H".

[0134] The fourth region 440c2 may extend obliquely rearward to be inclined downward from the lower end of the third region 430c2. The height of the lower end of the fourth region 440c2 in the upward / downward direction "H" may be the same as the height of the lower end of the second light output portion 300c2 in the upward / downward direction "H".

[0135] Fourth embodiment

[0136] In the following, reference will be made to Fig.12 A lamp 10d according to a fourth embodiment of the present disclosure is described. In the description of the lamp 10d according to the fourth embodiment, differences from the lamps according to the first to third embodiments of the present disclosure will be mainly described.

[0137] The lamp 10d according to the fourth embodiment of the present disclosure may include a light source 100d, a light input portion 200d, a light output portion 300d, a shielding portion 400d, and a guide portion 500d. Meanwhile, for the description of the light source 100d, the light input portion 200d, the light output portion 300d, and the guide portion 500d according to the fourth embodiment of the present disclosure, the description of the light source 100a, the light input portion 200a, the light output portion 300a, and the guide portion 500a according to the first embodiment of the present disclosure is used.

[0138] The light input portion 200d may include a light input central portion 210d and a light input outer area portion 220d. In addition, the light output portion 300d may include an upper light output area 310d and a lower light output area 320d. At the same time, for the description of the light input central portion 210d, the light input outer area portion 220d, the upper light output area 310d and the lower light output area 320d according to the fourth embodiment of the present disclosure, the description of the light input central portion 210a, the light input outer area portion 220a, the upper light output area 310a and the lower light output area 320a according to the first embodiment of the present disclosure is used.

[0139] The shielding portion 400d may include a first region 410d, a second region 420d, and a third region 430d. The first region 410d may have a shape protruding toward the lower side. However, the present disclosure is not limited to this example, and the first region 410d may have a shape parallel to the light output optical axis 300x. The first region 410d may include a reflective region 411d and an extended region 412d.

[0140] The reflection region 411d may reflect any portion of the light passing through the light input portion 200d. The reflection region 411d may extend obliquely to the rear side relative to the light output optical axis 300x to be inclined to the lower side. For example, the height of the front end of the reflection region 411d in the upward / downward direction "H" may be the same as the height of the light output optical axis 300x in the upward / downward direction "H". In addition, the rear end of the reflection region 411d may be disposed on the lower side of the light output optical axis 300x.

[0141] The extension area 412d may extend from the rear end of the reflection area 411d to the upper side. For example, the extension area 412d may extend obliquely to the upper side to be inclined to the rear side. The extension area 412d may be connected to the front end of the second area 420d. In other words, the extension area 412d may extend obliquely between the front end of the second area 420d and the rear end of the reflection area 411d. The height of the upper end of the extension area 412d in the upward / downward direction "H" may be the same as the height of the light output optical axis 300x in the upward / downward direction "H".

[0142] The second region 420d may prevent light passing through the light input portion 200d from traveling to the front side. The second region 420d may be referred to as a “light shielding region 420d.” The light shielding region 420d may be disposed at an upper side of a lower end of the light output portion 300a.

[0143] The third region 430d may define the front side of the shielding portion 400d. The third region 430d may be referred to as a "front region 430d". The output reflected light may reach the front region 430d. Among the light reaching the light output portion 300d, the output reflected light may refer to light reflected (e.g., totally reflected) from the light output portion 300d and traveling to the rear side.

[0144] The front region 430d may extend obliquely to the front side relative to the light output optical axis 300x to be inclined to the downward side. For example, the front region 430d may extend obliquely to the front side from the front end of the reflection region 411d to be inclined to the downward side.

[0145] The height of the upper end of the front region 430d in the upward / downward direction may be the same as the height of the light output optical axis 300x in the upward / downward direction “H.” In other words, the upper end of the front region 430d may intersect with the light output optical axis 300x.

[0146] In addition, when the lamp 10d is observed in the left / right direction, the front area 430d may have a straight line shape. For example, when the lamp 10d is observed in the left / right direction, the front area 430d may have a diagonal shape extending to the front side and the lower side. When the lamp 10d is observed in the left / right direction, the front area 430d may have a shape inclined to the front side relative to the upward / downward reference line Hx. The upward / downward reference line Hx may be defined as an imaginary straight line passing through or extending through the front end of the reflection area 411d and extending in the upward / downward direction "H".

[0147] In this way, because the front area 430d has a shape inclined toward the front side relative to the upward / downward reference line Hx, the output reflected light reaching the front area 430d can be totally reflected in the front area 430d, and the input of the output reflected light to the light output portion 300d can be minimized. In this way, when the output reflected light is totally reflected in the front area 430d and the input to the light output portion 300d is minimized, the output reflected light can be output from the light output portion 300d, thereby minimizing glare to the user.

[0148] The output reflected light reaching the front region 430d may be output from the front region 430d. For example, when output from the front region 430d, the output reflected light may be refracted to the upper side. The light refracted and output from the front region 430d may be input to the first region 410d (e.g., the reflection region 411d). The light input to the first region 410d may pass through the first guide region to be described later, and may be output from the upper end of the guide portion 500d.

[0149] The guide portion 500d may include a first guide region and a second guide region. The first guide region may be disposed on the upper side of the reflective region 411d. The first guide region may refer to a region located on the upper side of the guide portion 500d relative to the light output optical axis 300x.

[0150] The first guide area may extend from the upper light output area 310d to the rear side. The width of the first guide area in the upward / downward direction "H" may be the same as the width of the upper light output area 310a in the upward / downward direction "H".

[0151] The second guide area may refer to an area located at the lower side of the guide portion 500d relative to the light output optical axis 300x. The second guide area may guide the travel of the output reflected light to the rear side. In other words, the second guide area may guide the light reflected from the light output portion 300d to the front area 430d. The second guide area may extend in the forward / backward direction "A" between the front area 430d and the lower light output area 320d.

[0152] Fifth embodiment

[0153] In the following, reference will be made to Fig.13 A lamp 10e according to a fifth embodiment of the present disclosure is described. In the description of the lamp 10e according to the fifth embodiment, the difference from the lamps according to the first to fourth embodiments of the present disclosure is mainly described.

[0154] The lamp 10e according to the fifth embodiment of the present disclosure may include a light source 100e, a light input portion 200e, a light output portion 300e, a shielding portion (not shown), and a guide portion 500e. For the description of the light source 100e, the light input portion 200e, the light output portion 300e, and the shielding portion (not shown) according to the fifth embodiment of the present disclosure, the description of the light source 100a, the light input portion 200a, the light output portion 300a, and the shielding portion 400a according to the first embodiment of the present disclosure is used.

[0155] The light input portion 200e may include a light input central portion 210e and a light input outer area portion 220e. In addition, the light output portion 300d may include an upper light output area and a lower light output area. At the same time, for the description of the light input central portion 210e, the light input outer area portion 220e, the upper light output area and the lower light output area according to the fifth embodiment of the present disclosure, the description of the light input central portion 210a, the light input outer area portion 220a, the upper light output area 310a and the lower light output area 320d according to the first embodiment of the present disclosure is used.

[0156] The guide portion 500e may be divided into a plurality of regions with respect to the forward / rearward direction "A". In at least some of the plurality of regions, the width of the first region in the left / right direction and the width of the second region in the left / right direction may be different from each other. For example, when the first region is located at the front side of the second region, the width of the first region in the left / right direction may be greater than the width of the second region in the left / right direction. In other words, in at least some of the plurality of regions, the width of the region relatively located at the front side in the left / right direction may be greater than the width of the region relatively located at the rear side in the left / right direction.

[0157] For example, the guide portion 500e may have a shape in which its width in the left / right direction becomes smaller toward the rear side. On the left and right sides of the guide portion 500e, inclined surfaces 500e1 may be formed, respectively, which extend obliquely toward the rear side to be inclined toward the inside of the lamp 10e. The inclined surface 500e1 may form a specific angle "T" with the forward / backward reference line Ax. The forward / backward reference line Ax may represent an imaginary straight line extending in the forward / backward direction "A".

[0158] The width of the front end of the guide portion 500e in the left / right direction can be the same as the width of the light output portion 300e in the left / right direction. In addition, the width of the rear end of the guide portion 500e in the left / right direction can be equal to or greater than the width of the light input portion 200e in the left / right direction.

[0159] In the inclined surface 500e1, a portion of the light totally reflected by the light input outer region 220e may be reflected. For example, the angle formed by the inclined light and the forward / backward reference line Ax before the inclined light reaches the inclined surface 500e1 may be greater than the angle formed by the inclined light reflected by the inclined surface 500e1 and the forward / backward reference line Ax. The inclined light may refer to an arbitrary light among the light totally reflected by the light input outer region 220e.

[0160] When the inclined light is reflected by the inclined surface 500e1, the inclination of the inclined light relative to the forward / backward reference line Ax can be reduced. In other words, when the inclined light is reflected by the inclined surface 500e1, the curvature can be reduced. Therefore, the inclined light reflected by the inclined surface 500e1 can travel to be close to parallel to the forward / backward direction "A". In this way, when the inclination of the inclined light relative to the forward / backward reference line Ax is reduced by the inclined surface 500e1, the amount of light output from the light output portion 300e can be maximized.

[0161] The inclined surface formed on the left side of the guide portion 500e may be referred to as a "left inclined surface" or a "first inclined surface". The first inclined surface may have a shape extending toward the rear side to be inclined toward the right side. In addition, the first inclined surface may reflect a portion of the light totally reflected by the light input outer area portion 220e to the right side. For example, the first inclined surface may reflect a portion of the light totally reflected from the right side of the light input outer area portion 220e to the right side. After being reflected by the first inclined surface, the light output from the light output portion 300e may form the right side of a wide area.

[0162] In addition, the inclined surface formed on the right side of the guide portion 500e may be referred to as a "right inclined surface" or a "second inclined surface". The second inclined surface may have a shape extending toward the rear side to be inclined toward the left side. In addition, the second inclined surface may reflect a portion of the light totally reflected by the light input outer area portion 220e to the left side. For example, the second inclined surface may reflect a portion of the light totally reflected from the left side of the light input outer area portion 220e to the left side. After being reflected from the second inclined surface, the light output from the light output portion 300e may form the left side of a wide area.

[0163] In addition, the left and right inclined surfaces may have shapes symmetrical to each other with respect to a reference plane.The reference plane may be defined as an imaginary plane perpendicular to the left / right direction and passing through or extending through the center of the lamp 10e (eg, the center of the guide portion 500e).

[0164] The luminaire according to the present disclosure uses most of the light passing through the main optical system as light for forming a light distribution pattern, thereby improving light output efficiency.

[0165] In addition, when describing the components of the embodiments of the present disclosure, terms such as first, second, "A", "B", (a) and (b) may be used. These terms are used only to distinguish the components, and the nature, order and sequence of the corresponding components are not limited by these terms. Unless defined differently, all terms including technical or scientific terms have the same meaning as those commonly understood by ordinary technicians in the field to which the present disclosure belongs. Unless clearly defined in the present disclosure, terms such as terms defined in commonly used dictionaries should be interpreted as consistent with the contextual meaning of the relevant technology and not interpreted as ideal or overly formal meanings.

[0166] The above description is a simple exemplary description of the technical spirit of the present disclosure, and a person of ordinary skill in the art to which the present disclosure belongs can make various corrections and modifications without departing from the essential features of the present disclosure. Therefore, the embodiments disclosed in the present disclosure are not used to limit the technical spirit of the present disclosure, but to describe them, and the scope of the technical spirit of the present disclosure is not limited by the embodiments. The scope of protection of the present disclosure shall be interpreted by the attached claims, and all technical spirits within the equivalent scope shall be interpreted as included in the scope of the present disclosure.

[0167] CROSS-REFERENCE TO RELATED APPLICATIONS

[0168] This application claims the priority of Korean Patent Application No. 10-2023-0103051 filed on August 7, 2023 in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference.

Claims

1. A lamp, comprising: a first optical module configured to form a wide area of ​​a low beam light distribution pattern; as well as a second optical module configured to form a hot zone of the low-beam light distribution pattern, the luminous intensity of the hot zone being higher than the luminous intensity of the wide zone, Wherein, each of the first optical module and the second optical module comprises: a light source configured to output light; a light input portion configured to receive the light output from the light source; a light output portion configured to output the light passing through the light input portion; and a guide portion disposed between the light input portion and the light output portion and configured to guide the light passing through the light input portion to the light output portion, wherein the light input portion of the first optical module is a first light input portion, and the guide portion of the first optical module is a first guide portion, wherein the light input portion of the second optical module is a second light input portion, and the guide portion of the second optical module is a second guide portion, and The shape of the first guide portion on the first light input portion side is different from the shape of the second guide portion on the second light input portion side.

2. The lamp according to claim 1, wherein: A diameter of the first light input portion is smaller than a diameter of the second light input portion.

3. The lamp according to claim 1, wherein: The first light input portion has a first light input groove at the rear side of the first light input portion, The second light input portion has a second light input groove at the rear side of the second light input portion, and A diameter of the first light input slot is smaller than a diameter of the second light input slot.

4. The lamp according to claim 1, wherein: The light output portion of the first optical module is a first light output portion, The optical axis of the first light output portion is a first light output optical axis, The height of the lower end of the first light input portion is equal to or greater than the height of the first light output optical axis, and The center of the first light input portion is located between an upper end portion of the first light output portion and the first light output optical axis.

5. The lamp according to claim 4, wherein: A first light input optical axis, which is an optical axis of the first light input portion, is inclined relative to the first light output optical axis and extends through a focal point of the light output portion.

6. The lamp according to claim 1, wherein: The light output portion of the first optical module is a first light output portion, and The first optical module comprises: a first reflective region disposed between the first light input portion and the first light output portion and configured to reflect a portion of the light passing through the first light input portion; and A first extending surface extends between a rear end of the first reflecting area and a lower end of the first light input portion.

7. The lamp according to claim 6, wherein: The optical axis of the first light input portion is a first light input optical axis, The first extension surface extends from the rear end of the first reflection area to the rear side to be inclined with respect to the first light input optical axis.

8. The lamp according to claim 7, wherein: The optical axis of the first light output portion is a first light output optical axis, and An angle between the first light output axis and the first extension surface is smaller than an angle between the first light output axis and the first light input axis.

9. The lamp according to claim 1, wherein: The optical axis of the second light input portion is a second light input optical axis, The light output portion of the second optical module is a second light output portion, The optical axis of the second light output portion is a second light output optical axis, and The second light input optical axis and the second light output optical axis are parallel to each other.

10. The luminaire according to claim 1, wherein: The light output portion of the second optical module is a second light output portion, The optical axis of the second light output portion is a second light output optical axis, and The second optical module also includes: a second reflective region disposed between the second light input portion and the second light output portion and configured to reflect a portion of light passing through the second light input portion; and a second extending surface extending between a rear end of the second reflecting area and a lower end of the second light input portion, The second extension surface extends diagonally relative to the second light output optical axis and is arranged to overlap with the second light input portion.

11. The lamp according to claim 1, wherein: The maximum brightness of the light passing through the first light input portion is smaller than the maximum brightness of the light passing through the second light input portion.

12. The luminaire of claim 1, wherein: The light source of the first optical module is a first light source, the light output portion of the first optical module is a first light output portion, and the first central light is a portion of the light output from the first light source, the first light input portion includes a first light input central portion, and the first light input central portion is configured to refract the first central light so that the first central light travels toward a focus of the first light output portion, The light source of the second optical module is a second light source, the light output portion of the second optical module is a second light output portion, and the second central light is a portion of the light output from the second light source, The second light input portion includes a second light input central portion configured to refract the second central light so that the second central light travels toward a focal point of the second light output portion, and A distance between the first light input central portion and the first light source is smaller than a distance between the second light input central portion and the second light source.

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