JP2014107112A - Vehicular headlight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem on a conventional vehicular headlight that elbow points may doubly overlap with each other.SOLUTION: A vehicular headlight includes at least first lamp units 21 and 41, and second lamp units 22 and 42. The first lamp units 21 and 41 and the second lamp units 22 and 42 include semiconductor type light sources 21 and 22, and lenses 41 and 42, respectively. The first lamp units 21 and 41 deliver a first spot light distribution pattern P1 having an oblique cut-off line CL1 in front of a vehicle. The second lamp units 22 and 42 deliver a second spot light distribution pattern P2 having a horizontal cut-off line CL2 in front of the vehicle. As a result, one elbow point E always is present without doubly overlapping with another.

Description

  The present invention relates to a lens direct-light vehicle headlamp including a semiconductor light source and a lens. In particular, the present invention relates to a vehicle headlamp that irradiates the front of a vehicle with a light distribution pattern having a diagonal cutoff line and a horizontal cutoff line with a plurality of lamp units.

  This type of vehicle headlamp has been conventionally used (for example, Patent Document 1 and Patent Document 2). Hereinafter, a conventional vehicle headlamp will be described.

  The vehicle headlamp disclosed in Patent Document 1 includes four LEDs, four incident surfaces of the projection lens, and an output surface of the projection lens, and the four incident surfaces are the first refractive surface and the first refractive surface, respectively. It is composed of a second refracting surface and a third refracting surface. Light from the four LEDs is incident on the first refractive surface, the second refractive surface, and the third refractive surface of the four incident surfaces, respectively. Then, the light which is incident on the first refracting surface and is emitted from the exit surface is irradiated in front of the vehicle as an irradiation region having the own lane side horizontal cutoff line. Light incident on the second refracting surface and exiting from the exit surface is irradiated in front of the vehicle as an irradiation region having an oncoming lane side horizontal cut-off line. Light entering the third refracting surface and exiting from the exit surface is irradiated in front of the vehicle as an irradiation region having an oblique cutoff line.

  The vehicle headlamp disclosed in Patent Literature 2 includes two light sources and two lenses. The light from the two light sources passes through the two lenses and is irradiated to the front of the vehicle as a partially distributed light pattern including the own lane side horizontal cutoff line, the oncoming lane side horizontal cutoff line, and the oblique cutoff line.

JP 2012-119172 A JP 2012-174656 A

  However, in the vehicle headlamp of Patent Document 1, four LEDs and four incident surfaces (so-called four lamp units) have their own lane side horizontal cutoff line, oncoming lane side horizontal cutoff line, and diagonal cut, respectively. An irradiation region having an off-line is formed. For this reason, due to manufacturing tolerances and assembly tolerances between the four LEDs and the four incident surfaces, the four irradiation areas are shifted from each other, and the intersection of the oncoming lane side horizontal cutoff line and the oblique cutoff line (So-called elbow point) may be doubled.

  In addition, the vehicle headlamp disclosed in Patent Document 2 includes two light sources and two lenses (so-called two lamp units), the own lane side horizontal cutoff line, the opposite lane side horizontal cutoff line, and the oblique cutoff line, respectively. A partial distribution light pattern including For this reason, due to manufacturing tolerances and assembly tolerances between the two light sources and the two lenses, the two partial light distribution patterns are shifted from each other, so that the opposite lane side horizontal cutoff line and the diagonal cutoff line are separated from each other. The intersection (so-called elbow point) may be doubled.

  The problem to be solved by the present invention is that the elbow point may be doubled in the conventional vehicle headlamp.

  The present invention (the invention according to claim 1) includes at least a first lamp unit and a second lamp unit, and the first lamp unit and the second lamp unit are respectively a semiconductor-type light source, a lens, The first lamp unit is a lamp unit that irradiates a first spot light distribution pattern having an oblique cut-off line forward of the vehicle, and the second lamp unit has a second spot light distribution pattern having a horizontal cut-off line. It is a lamp unit which irradiates ahead of a vehicle, It is characterized by the above-mentioned.

  The present invention (the invention according to claim 2) includes a lamp unit separate from the first lamp unit and the second lamp unit, and the separate lamp unit includes a semiconductor-type light source and a lens, and the first lamp The unit and the second lamp unit are arranged adjacent to each other.

  This invention (the invention according to claim 3) is characterized in that at least the exit surface of the lens of the first lamp unit and the exit surface of the lens of the second lamp unit are connected.

  In the vehicle headlamp according to the present invention, a first spot light distribution pattern in which the first lamp unit has an oblique cut-off line is formed exclusively for one, and a second spot light distribution pattern in which the second lamp unit has a horizontal cut-off line. Is formed exclusively for one. For this reason, even if the first spot light distribution pattern and the second spot light distribution pattern are shifted from each other due to manufacturing tolerance or assembly tolerance between the first lamp unit and the second lamp unit, one There is always one elbow point that is the intersection of the oblique cut-off line of the first spot light distribution pattern and the horizontal cut-off line of one second spot light distribution pattern (see FIG. 5C). Thus, the vehicle headlamp according to the present invention can perform light distribution control with high accuracy on an elbow point and a light distribution pattern including an oblique cutoff line and a horizontal cutoff line near the elbow point. In addition, an adjustment mechanism for adjusting the double elbow point to one becomes unnecessary.

FIG. 1 is a perspective view of a main part (semiconductor type light source, lens) showing an embodiment of a vehicle headlamp according to the present invention. FIG. 2 is a plan view (viewed in the direction of arrow II in FIG. 1) showing the main parts (semiconductor type light source, lens). FIG. 3 is an explanatory diagram showing a light distribution pattern irradiated from each lamp unit. FIG. 4 is an explanatory diagram showing a light distribution pattern in which light distribution patterns irradiated from the lamp units are superimposed (synthesized). FIG. 5 is a schematic explanatory diagram showing a first spot light distribution pattern and a second spot light distribution pattern. FIG. 6 is an explanatory diagram showing a mutual shift state between the first spot light distribution pattern and the second spot light distribution pattern.

  Embodiments (examples) of a vehicle headlamp according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. 3 to 6, reference sign “VU-VD” indicates vertical lines on the upper and lower sides of the screen. Reference sign “HL-HR” indicates horizontal lines on the left and right of the screen. 3, 4, and 6 are explanatory diagrams of an isoluminous curve showing a simplified light distribution pattern on a screen drawn by computer simulation. In the explanatory diagram of the isoluminous curve, the central isoluminous curve indicates high luminous intensity, and the outer isoluminous curve indicates low luminous intensity. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the vehicle headlamp according to the present invention is mounted on a vehicle.

(Description of Configuration of Embodiment)
Hereinafter, the configuration of the vehicle headlamp according to this embodiment will be described. In FIG. 1, reference numeral 1 denotes a vehicle headlamp (for example, a headlamp) according to this embodiment. The vehicle headlamp 1 is mounted on both left and right ends of the front portion of the vehicle.

(Description of the vehicle headlamp 1)
As shown in FIGS. 1 and 2, the vehicle headlamp 1 includes a lamp housing (not shown), a lamp lens (not shown), four lamp units, and a heat sink member (not shown). ).

(Explanation of lamp unit)
The lamp housing and the lamp lens define a lamp chamber (not shown). The lamp unit is disposed in the lamp chamber and is attached to the lamp housing via a vertical optical axis adjustment mechanism (not shown) and a horizontal optical axis adjustment mechanism (not shown). ing.

  In this example, the lamp unit includes a first lamp unit, a second lamp unit, a third lamp unit, and a fourth lamp unit. The first lamp unit, the second lamp unit, the third lamp unit, and the fourth lamp unit are respectively semiconductor-type light sources 21, 22, 23, 24 (hereinafter referred to as “21-24”), Lenses 41, 42, 43, and 44 (hereinafter referred to as “41 to 44”).

  The first lamp unit includes the first semiconductor light source 21 and the first lens 41. As shown in FIGS. 3A and 5A, the first lamp units 21 and 41 are lamp units that irradiate the front of the vehicle with a first spot light distribution pattern P1 having an oblique cut-off line CL1. .

  The second lamp unit includes the second semiconductor light source 22 and the second lens 42. As shown in FIGS. 3B and 5B, the second lamp units 22 and 42 are lamp units that irradiate the front of the vehicle with a second spot light distribution pattern P2 having a horizontal cutoff line CL2. .

  The third lamp unit includes the third semiconductor light source 23 and the third lens 43. As shown in FIG. 3C, the third lamp units 23 and 43 are lamp units that irradiate the front of the vehicle with an intermediate diffusion light distribution pattern (spot auxiliary light distribution pattern) P3 having a cut-off line CL3.

  The fourth lamp unit includes the fourth semiconductor light source 24 and the fourth lens 44. As shown in FIG. 3D, the fourth lamp units 24 and 44 are lamp units that irradiate the front of the vehicle with a large diffusion light distribution pattern P4 having a cut-off line CL4.

  The first lamp units 21 and 41 and the second lamp units 22 and 42 are arranged adjacent to each other. The third lamp units 23 and 43 are arranged next to the second lamp units 22 and 42. The fourth lamp units 24 and 44 are arranged next to the third lamp units 23 and 43.

(Description of light distribution pattern)
The cutoff line CL3 of the medium diffusion light distribution pattern P3 and the cutoff line CL4 of the large diffusion light distribution pattern P4 are the oblique cutoff line CL1 and the second spot light distribution pattern P2 of the first spot light distribution pattern P1. It is located at the same position as or below the horizontal cut-off line CL2.

  When the first spot light distribution pattern P1, the second spot light distribution pattern P2, the medium diffusion light distribution pattern P3, and the large diffusion light distribution pattern P4 are superimposed (synthesized), the low beam shown in FIG. A light distribution pattern LP is formed. The low beam light distribution pattern LP includes an upper horizontal cut-off line CL5 on the own lane side, a lower horizontal cut-off line CL2 on the opposite lane side (mainly a horizontal cut-off line CL2 of the second spot light distribution pattern P2), An oblique cut-off line CL1 (mainly the oblique cut-off line CL1 of the first spot light distribution pattern P1) connecting the upper horizontal cut-off line CL5 and the lower horizontal cut-off line CL2, and the oblique cut-off line CL1 and the lower horizontal cut-off And an elbow point E that is an intersection with the offline CL2.

(Description of semiconductor light sources 21 to 24)
As shown in FIGS. 1 and 2, the semiconductor light sources 21 to 24 are self-luminous semiconductor light sources such as LEDs, OELs, or OLEDs (organic ELs). The semiconductor-type light sources 21 to 24 include one or a plurality of light emitting chips (not shown), and light emitting portions (packages, LED packages) 31, 32, 33 in which the light emitting chips are sealed with a sealing resin member. 34 (hereinafter referred to as “31 to 34”) and a substrate (not shown) on which the light emitting units 31 to 34 are mounted. When there are a plurality of the light emitting chips, they are arranged in the X-axis direction (horizontal direction).

  The substrate is fixed to the heat sink member. As a result, the semiconductor light sources 21 to 24 are held (fixed) on the heat sink member. The semiconductor light sources 21 to 24 are electrically connected to a power source (battery). The light emitting surfaces of the light emitting units 31 to 34 of the semiconductor-type light sources 21 to 24 face the front side in the horizontal direction. The centers (light emission centers) O1, O2, O3 and O4 (hereinafter referred to as “O1 to O4”) of the light emitting surfaces of the light emitting units 31 to 34 are referred to as reference focal points F1, F2, F3 of the lenses 41 to 44, respectively. F4 (hereinafter referred to as “F1 to F4”) or the vicinity thereof, and reference optical axes (reference axes) Z1, Z2, Z3, Z4 (hereinafter referred to as “Z1 to Z4”) of the lenses 41 to 44. Called) or in the vicinity thereof.

  1 and 2, X, Y1, Y2, Y3, and Y4 (hereinafter referred to as “Y1 to Y4”) and Z1 to Z4 constitute an orthogonal coordinate (XYZ orthogonal coordinate system). The X axis is a horizontal axis in the left-right direction that passes through the light emission centers O1 to O4 of the light emitting units 31 to 34. In this embodiment, the right side is the + direction and the left side is the-direction. The Y1 to Y4 axes are vertical axes passing through the light emission centers O1 to O4 of the light emitting units 31 to 34, and in this embodiment, the upper side is the + direction and the lower side is the-direction. is there. Further, the Z1 to Z4 axes are normal lines (perpendicular lines) passing through the light emission centers O1 to O4 of the light emitting units 31 to 34, that is, axes in the front-rear direction orthogonal to the X axis and the Y1 to Y4 axes. In this embodiment, the front side is the + direction and the rear side is the − direction.

(Description of lenses 41 to 44)
As shown in FIGS. 1 and 2, the lenses 41 to 44 are configured such that the first lens 41, the second lens 42, the third lens 43, and the fourth lens 44 are integrally formed. It will be. The lenses 41 to 44 are held (fixed) to the heat sink member.

  The first lens 41 includes a first incident surface 51 made of a free-form surface and a first exit surface 61 made of a composite quadratic surface. The first lens 41 has the first reference focal point F1 and the first reference optical axis (reference axis) Z1.

  The second lens 42 includes a second incident surface 52 made of a free-form surface and a second exit surface 62 made of a composite quadric surface. The second lens 42 has the second reference focal point F2 and the second reference optical axis (reference axis) Z2.

  The third lens 43 includes a third incident surface 53 made of a free-form surface and a third exit surface 63 made of a compound quadratic curved surface. The third lens 43 has the third reference focal point F3 and the third reference optical axis (reference axis) Z3.

  The fourth lens 44 includes a fourth incident surface 54 formed of a free curved surface and a fourth output surface 64 formed of a composite quadratic curved surface. The fourth lens 44 has the fourth reference focal point F4 and the fourth reference optical axis (reference axis) Z4.

  As shown in FIGS. 1 and 2, the lenses 41 to 44 have four incident surfaces 51, 52, 53, and 54 (hereinafter referred to as “51 to 54”) that correspond to each other (1: 1). In some cases) and four exit surfaces 61, 62, 63, and 64 (hereinafter may be referred to as "61 to 64"). The four said output surfaces 61-64 are connected continuously.

(Description of the operation of the embodiment)
The vehicle headlamp 1 according to this embodiment is configured as described above, and the operation thereof will be described below.

  The light emitting units 31 to 34 of the semiconductor light sources 21 to 24 are caused to emit light. Then, in the first lamp units 21 and 41, light (not shown) radiated from the light emitting unit 31 of the first semiconductor-type light source 21 is directly from the first incident surface 51 of the first lens 41 to the first lens 41. Incident in. At this time, the light distribution of the incident light is controlled on the first incident surface 51. Incident light that has entered the first lens 41 exits from the first exit surface 61 of the first lens 41. At this time, the emitted light is subjected to light distribution control on the first emission surface 61. As shown in FIG. 3A, the emitted light from the first lens 41 is irradiated in front of the vehicle as a first spot light distribution pattern P1 having an oblique cut-off line CL1.

  In the second lamp units 22 and 42, light (not shown) radiated from the light emitting part 32 of the second semiconductor light source 22 is directly from the second incident surface 52 of the second lens 42 to the second lens 42. Incident in. At this time, the light distribution of the incident light is controlled on the second incident surface 52. Incident light that has entered the second lens 42 exits from the second exit surface 62 of the second lens 42. At this time, the emitted light is subjected to light distribution control on the second emission surface 62. As shown in FIG. 3B, the emitted light from the second lens 42 is irradiated in front of the vehicle with a second spot light distribution pattern P2 having a horizontal cutoff line CL2.

  Further, in the third lamp units 23 and 43, light (not shown) radiated from the light emitting unit 33 of the third semiconductor type light source 23 is directly transmitted from the third incident surface 53 of the third lens 43 to the third lens 43. Incident in. At this time, the light distribution of the incident light is controlled on the third incident surface 53. Incident light that has entered the third lens 43 exits from the third exit surface 63 of the third lens 43. At this time, the emitted light is subjected to light distribution control on the third emission surface 63. As shown in FIG. 3C, the emitted light from the third lens 43 is irradiated in front of the vehicle with an intermediate diffusion light distribution pattern (spot auxiliary light distribution pattern) P3 having a cut-off line CL3.

  Furthermore, in the fourth lamp units 24 and 44, light (not shown) emitted from the light emitting unit 34 of the fourth semiconductor-type light source 24 is directly transmitted from the fourth incident surface 54 of the fourth lens 44 to the fourth lens. 44 enters. At this time, the light distribution of the incident light is controlled on the fourth incident surface 54. Incident light that has entered the fourth lens 44 exits from the fourth exit surface 64 of the fourth lens 44. At this time, the emitted light is subjected to light distribution control on the fourth emission surface 64. As shown in FIG. 3D, the emitted light from the fourth lens 44 is irradiated in front of the vehicle with a large diffusion light distribution pattern P4 having a cut-off line CL4.

  The first spot light distribution pattern P1 shown in FIG. 3A, the second spot light distribution pattern P2 shown in FIG. 3B, the intermediate diffusion light distribution pattern P3 shown in FIG. The large diffusion light distribution pattern P4 shown in FIG. 3 (D) is superimposed (synthesized), and the low beam light distribution pattern LP shown in FIG. 4, that is, the upper horizontal cut-off line CL5, the lower horizontal cut-off line CL2, and the oblique cut The low beam light distribution pattern LP having an off-line CL1 and an elbow point E is formed.

(Explanation of effect of embodiment)
The vehicular headlamp 1 according to this embodiment is configured and operated as described above, and the effects thereof will be described below.

  In the vehicle headlamp 1 according to this embodiment, the first lamp units 21 and 41 form a dedicated first spot light distribution pattern P1 having an oblique cut-off line CL1, and the second lamp units 22 and 42 The second spot light distribution pattern P2 having the horizontal cut-off line CL2 is formed exclusively for one. For this reason, the first spot light distribution pattern P1 and the second spot light distribution pattern P2 are mutually different due to manufacturing tolerances or assembly tolerances between the first lamp units 21 and 41 and the second lamp units 22 and 42. The elbow point E, which is the intersection of the oblique cut-off line CL1 of one first spot light distribution pattern P1 and the horizontal cut-off line CL2 of one second spot light distribution pattern P2, is shown in FIG. As shown in (C), there is always one.

  Hereinafter, it will be described in detail that the elbow point E is always one. That is, the first spot light distribution pattern P1 having the oblique cutoff line CL1 shown in FIGS. 3A and 5A, and the first spot light distribution pattern P1 having the horizontal cutoff line CL2 shown in FIGS. 3B and 5B. The two-spot light distribution pattern P2 is synthesized. As a result, spot light distribution patterns P1 and P2, P12, P13, and P14 having elbow points E shown in FIGS. 5C, 6A, 6B, and 6C are formed.

  Here, when manufacturing tolerances and assembly tolerances between the first lamp units 21 and 41 and the second lamp units 22 and 42 are extremely small, as shown in FIGS. 5C and 6A. In addition, the elbow point E is located on the vertical line VU-VD above and below the screen, and is one without being doubled.

  On the other hand, when the manufacturing tolerance or the assembly tolerance between the first lamp units 21 and 41 and the second lamp units 22 and 42 is large, for example, the first spot light distribution pattern P1 is shown in FIG. When the second spot light distribution pattern P2 is deviated 1 ° to the right from the state shown in FIGS. 3B and 5B, the state shown in FIG. As shown in FIG. 6B, the elbow point E is shifted by 1 ° to the left with respect to the vertical line VU-VD on the upper and lower sides of the screen, but is one without being dub.

  Further, for example, the first spot light distribution pattern P1 is shifted by 1 ° to the right from the state shown in FIGS. 3A and 5A, and the second spot light distribution pattern P2 is shown in FIG. In the case where the state shown in FIG. 5B is shifted by 1 ° to the left, as shown in FIG. 6C, the elbow point E is shifted by 1 ° to the right with respect to the vertical line VU-VD above and below the screen. However, there is one without dub.

  Thus, there is always one elbow point E that is the intersection of the oblique cutoff line CL1 of the first spot light distribution pattern P1 and the horizontal cutoff line CL2 of one second spot light distribution pattern P2. Thereby, the vehicle headlamp 1 according to this embodiment distributes the low beam light distribution pattern LP including the elbow point E and the oblique cutoff line CL1 and the horizontal cutoff line CL2 near the elbow point E with high accuracy. Can be controlled. In addition, an adjustment mechanism for adjusting the double elbow point E to one becomes unnecessary.

  The vehicle headlamp 1 according to this embodiment includes third lamp units 23 and 43 and fourth lamp units 24 and 44 that are separate from the first lamp units 21 and 41 and the second lamp units 22 and 42. is there. Therefore, in addition to the first spot light distribution pattern P1 obtained by the first lamp units 21 and 41 and the second spot light distribution pattern P2 obtained by the second lamp units 22 and 42, the third lamp unit 23, The intermediate diffusion light distribution pattern P3 is obtained by 43, and the large diffusion light distribution pattern P4 is obtained by the fourth lamp units 24 and 44, respectively. Thereby, a good low-beam light distribution pattern LP which is close to ideal can be obtained.

  In the vehicle headlamp 1 according to this embodiment, the separate third lamp units 23 and 43 and the fourth lamp units 24 and 44 are the same as the first lamp units 21 and 41 and the second lamp units 22 and 42. The semiconductor-type light sources 23 and 24 and the lenses 43 and 44 are provided. For this reason, each light distribution pattern P1, P2, P3, P4 obtained by each lamp unit 21, 41, 22, 42, 23, 43, 24, 44 can be light-distributed with high accuracy. For example, the cut-off line CL3 of the medium-diffusion light distribution pattern P3 and the cut-off line CL4 of the large-diffusion light distribution pattern P4 are replaced with the oblique cut-off line CL1 of the first spot light distribution pattern P1 and the horizontal cut-off line CL2 of the second spot light distribution pattern P2. Can be reliably positioned at the same position or lower.

  In the vehicle headlamp 1 according to this embodiment, the first lamp units 21 and 41 and the second lamp units 22 and 42 are arranged adjacent to each other. For this purpose, the light distribution control is closely performed on the relative positional relationship between the first spot light distribution pattern P1 obtained by the first lamp units 21 and 41 and the second spot light distribution pattern P2 obtained by the second lamp units 22 and 42. can do.

  The vehicle headlamp 1 according to this embodiment includes an exit surface 61 of the lens 41 of the first lamp unit, an exit surface 62 of the lens 42 of the second lamp unit, and an exit surface 63 of the lens 43 of the third lamp unit. And the emission surface 64 of the lens 44 of the fourth lamp unit are continuously connected. For this reason, the lens is actually composed of four lenses 41, 42, 43, and 44, but it looks as if it is composed of one lens, and looks and designs. Improved.

(Description of example other than embodiment)
In this embodiment, the first lamp unit 21, 41, the second lamp unit 22, 42, the third lamp unit 23, 43, and the fourth lamp unit 24, 44 are configured. However, in the present invention, at least the first lamp units 21 and 41 and the second lamp units 22 and 42 may be used. In this case, you may use together with another vehicle lamp. That is, the first spot light distribution pattern P1 obtained by the first lamp units 21 and 41, the second spot light distribution pattern P2 obtained by the second lamp units 22 and 42, and the light distribution pattern obtained by other vehicle lamps. And may be used in combination.

  In this embodiment, as shown in FIGS. 1 and 2, the lenses 41 to 44 are formed by integrating the first lens 41, the second lens 42, the third lens 43, and the fourth lens 44. It is composed. However, in the present invention, as the lens, the first lens, the second lens, the third lens, and the fourth lens may be configured separately.

  Further, in this embodiment, the first lamp units 21, 41, the second lamp units 22, 42, the third lamp units 23, 43, and the fourth lamp units 24, 44 are arranged in a straight line in the horizontal direction (lateral direction). It is what has been. However, in the present invention, a plurality of lamp units may be arranged so as to be shifted up and down or back and forth.

DESCRIPTION OF SYMBOLS 1 Vehicle headlamp 21, 22, 23, 24 Semiconductor type light source 31, 32, 33, 34 Light emission part 41, 42, 43, 44 Lens 51, 52, 53, 54 Incident surface 61, 62, 63, 64 Output Surface CL1 Oblique cut-off line CL2 Horizontal cut-off line CL3, CL4 Cut-off line CL5 Upper horizontal cut-off line E Elbow point F1, F2, F3, F4 Lens reference focal point HL-HR Horizontal line on the screen LP Low beam light distribution pattern O1, O2, O3, O4 Emission center P1 First spot light distribution pattern P2 Second spot light distribution pattern VU-VD Vertical lines on the screen X X axis Y1, Y2, Y3, Y4 Y axis Z1, Z2, Z3, Z4 Lens reference Optical axis (Z axis)

Claims (3)

It is composed of at least a first lamp unit and a second lamp unit,
Each of the first lamp unit and the second lamp unit includes a semiconductor light source and a lens,
The first lamp unit is a lamp unit that irradiates the front of the vehicle with a first spot light distribution pattern having an oblique cut-off line,
The second lamp unit is a lamp unit that irradiates the front of the vehicle with a second spot light distribution pattern having a horizontal cutoff line.
A vehicle headlamp characterized by that. A lamp unit separate from the first lamp unit and the second lamp unit;
The separate lamp unit includes a semiconductor-type light source and a lens,
The first lamp unit and the second lamp unit are arranged next to each other,
The vehicle headlamp according to claim 1. At least the exit surface of the lens of the first lamp unit and the exit surface of the lens of the second lamp unit are connected,
The vehicle headlamp according to claim 1 or 2, characterized in that

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