JP2015069952A - Vehicular headlight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular headlight capable of switching light distribution between low beam and main beam with a single lamp body.SOLUTION: A vehicular headlight comprises first and second phosphors, a semiconductor laser, a reflection mirror, a translucent member, and a control part. The semiconductor laser is provided away from the first and second phosphors, to emit light to the first and second phosphors from different directions. The reflection mirror is, with a paraboloid for reflecting the light generated from the first and second phosphors as a base, arranged so that the first and second phosphors are positioned around its focal point. The translucent member is provided to face the reflection mirror and allows transmission of the light of the first and second phosphors reflected on the reflection mirror. The control part controls the semiconductor laser, and controls light distribution by selectively radiating the light of semiconductor laser to the first and second phosphors.

Description

  The present invention relates to a vehicle headlamp capable of controlling light distribution using a semiconductor laser light source and a plurality of phosphors.

  In recent years, a headlamp optical system using a solid light emitting element (hereinafter referred to as an LED) light source has been devised as a vehicle headlamp, and the optical system is miniaturized and power consumption is improved. However, due to the small luminous flux of the LED light source, a plurality of or large-area LEDs are required. On the other hand, since the size of the translucent member is not so small, the optical system cannot be expected to be extremely miniaturized. Further, since the LED has a remarkable decrease in luminous flux due to heat generation, a heat dissipating member for suppressing the heat is required, and it is difficult to reduce the size.

  Further, in the vehicle headlamp, it is necessary to form a predetermined light distribution pattern in each of the passing beam and the traveling beam in consideration of safety. FIG. 10 is a diagram showing the relationship between the predetermined light distribution and the hot zone light distribution. As shown in FIG. 10, among the light distribution patterns, there is a light distribution region called a hot zone HZ that is illuminated more brightly. In order to irradiate the hot zone HZ brightly, it is preferable to irradiate the hot zone HZ with high-intensity light having a narrow-angle light distribution. For this purpose, a high-luminance point light source is preferable.

  As described above, it can be seen that miniaturization of the light source and minimization of the heat radiating member are important issues in miniaturization of the vehicle headlamp. As a technique for overcoming these two points, there is a vehicle headlamp using a semiconductor laser. FIG. 11 is a side sectional view and a ray diagram of a conventional vehicle headlamp 100. The vehicle headlamp 100 includes a semiconductor laser 101, a phosphor 102, a reflecting mirror 103, a transmitting member 104, a reflecting film 105, and an optical fiber 106. The vehicular headlamp 100 is characterized in that the semiconductor laser 101 and the phosphor 102 are spaced apart from each other. In this respect, the configuration of the vehicular headlamp using LEDs is greatly different. Here, the miniaturization of the translucent member can be achieved by using a small phosphor. In addition, since phosphors have few heat-generating components due to light excitation, there is no need to provide a heat-dissipating member near the translucent member. It can be configured. (See Patent Document 1)

JP 2005-150041 A

  However, in the structure of the conventional vehicle headlamp 100 described above, it is not possible to switch the light distribution between the passing beam and the traveling beam with a single lamp. Therefore, the number of lamps is required at least two, and there is a problem that the entire vehicle headlamp becomes large.

  The present invention solves the above-described problems, and an object of the present invention is to provide a vehicle headlamp capable of switching light distribution between passing beams and traveling beams with a single lamp.

In order to solve the above-described problems, a vehicle headlamp according to the present invention includes first and second phosphors, a semiconductor laser, a reflecting mirror, a translucent member, and a control unit. Semiconductor laser is first and second
The first phosphor and the second phosphor are irradiated with light from different directions. The reflecting mirror is based on a parabolic curved surface for reflecting light generated from the first and second phosphors, and is arranged so that the first and second phosphors are located at substantially the focal points. The translucent member is provided facing the reflecting mirror and transmits the light of the first and second phosphors reflected by the reflecting mirror. The control unit controls the semiconductor laser and controls the light distribution by selectively irradiating the first and second phosphors with the light of the semiconductor laser.

  In the above vehicle headlamp, the semiconductor laser is composed of a first semiconductor laser and a second semiconductor laser, and the first semiconductor laser and the second semiconductor laser are a first phosphor and a second semiconductor laser, respectively. It arrange | positions so that light may be irradiated to a fluorescent substance, respectively, and a control part selectively irradiates light to a 1st, 2nd fluorescent substance by controlling a 1st semiconductor laser and a 2nd semiconductor laser, respectively. Is preferred.

  In addition, the above-mentioned vehicle headlamp includes a beam splitter that divides the light beam of the semiconductor laser, and a movable type that is provided at a position where one of the divided light beams incident on the second phosphor can be shielded. It is preferable that the control unit controls the light distribution by controlling the light shielding plate so as to shield or transmit one light beam.

  The vehicle headlamp further includes an installation base on which the first and second phosphors are arranged, and the installation base is a surface on which the first and second phosphors are arranged and a parabola. It is preferable to have an installation surface that is a surface that forms a predetermined angle with respect to the optical axis of the curved surface.

  In the above vehicle headlamp, it is preferable that a reflection film is formed on the installation surface.

  In the above vehicle headlamp, the installation base may have any shape of a semi-cylindrical column, a triangular column, and a polygonal column, and the installation surface may be a side surface of any shape.

  In the above vehicle headlamp, the installation base may have any shape of a cone, a quadrangular pyramid, and a polygonal pyramid, and the installation surface may be a side surface of any shape.

  In the above vehicle headlamp, the light beam of the semiconductor laser is incident on at least one of the first and second phosphors from a direction perpendicular to the optical axis of the parabolic surface or inclined toward the light transmitting member. It is good also as composition to do.

  In the vehicle headlamp described above, a semiconductor light receiving element that receives the specular reflection component of the semiconductor laser may be disposed on the side opposite to the translucent member with respect to the reflecting mirror.

According to the present invention, by selecting a phosphor to be irradiated to a semiconductor laser from a plurality of phosphors and controlling the light distribution, a small light distribution switching can be performed without a mechanical operation mechanism.

It is the sectional side view and light ray figure of the vehicle headlamp which concern on Embodiment 1. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially enlarged view of a vehicle headlamp according to a first embodiment, (a) is a side sectional view of an installation table on which a phosphor is installed, and (b) is a surface on which the phosphor of the installation table is provided. It is a figure showing the inclination-angle of. It is a figure showing the relationship between the light beam of a semiconductor laser in the vehicle headlamp which concerns on Embodiment 1, and an optical axis. FIG. 4 is a side sectional view and a ray diagram of a vehicle headlamp according to a second embodiment. It is the sectional side view and light ray figure of the modification of the vehicle headlamp which concerns on Embodiment 2. FIG. FIG. 6 is a side sectional view and a ray diagram of a vehicle headlamp according to a third embodiment. It is a figure which shows the base-material shape of the installation stand which installs the fluorescent substance of the vehicle headlamp which concerns on Embodiment 1-3. It is the sectional side view and light ray figure of the modification of the vehicle headlamp which concerns on Embodiment 2, 3. FIG. It is a structural diagram of the translucent member of the vehicle headlamp shown in FIG. It is a figure showing the relationship between predetermined light distribution and hot zone light distribution. It is the sectional side view and light ray figure of the conventional headlamp.

(Embodiment 1)
Hereinafter, a vehicle headlamp 10 according to Embodiment 1 will be described with reference to the drawings.

  FIG. 1 is a side sectional view and a ray diagram of a vehicular headlamp 10 according to a first embodiment. 2 is a partially enlarged view of the vehicle headlamp 10 according to the first embodiment. FIG. 2A is a side sectional view of the installation base 6 on which the phosphor 2 is installed. FIG. It is a figure showing the inclination-angle of the installation surface 7 in which the fluorescent substance 2 of 6 was provided. The vehicle headlamp 10 includes two semiconductor lasers 1, two phosphors 2, a reflecting mirror 3, a translucent member 4, and a control unit.

  In the present invention, light emitted from the semiconductor laser 1 is irradiated to the two phosphors 2 separately. Further, the control unit controls the light distribution of the light generated from the phosphor 2 by selecting one of the emitted lights that irradiate the two phosphors 2. In the first embodiment, the vehicle headlamp 10 irradiates two phosphors 2 with two semiconductor lasers 1 respectively, and the control unit controls the light distribution by controlling the light emitted from the two semiconductor lasers 1. To do.

  The semiconductor laser 1 includes a semiconductor light emitting element that generates light. Light generated from the semiconductor light emitting element is incident on the optical fiber 11 and is incident on the phosphor 2 from the emitting unit 12.

  Examples of the material of the phosphor 2 include oxynitride phosphors having a sialon structure, which are blue light excitation phosphors, (europium activated) oxynitride phosphors, (europium activated) sulfide phosphors, (europium activated) Silicate phosphor, (cerium activated) YAG phosphor, (europium activated) silicate phosphor, calcium oxynitride phosphor having sialon structure, (europium activated) sulfide phosphor, (europium activated) ) Sulfide phosphors, (europium activated) nitride phosphors, (europium activated) silicate phosphors. Or, halophosphate phosphors, aluminate phosphors, oxynitride phosphors having a sialon structure, (europium activated) oxynitride phosphors, (europium activated) sulfides, which are ultraviolet / violet light excitation phosphors Phosphor, aluminate phosphor, (europium activated) silicate phosphor, (europium activated) silicate phosphor, calcium oxynitride phosphor having a sialon structure, (europium activated) nitride phosphor, (Europium activated) silicate phosphor, (europium activated) oxysulfide phosphor, and the like can be used.

  The translucent member 4 is formed of a transparent member, and projects the light of the two phosphors 2 that emit light by receiving light from the semiconductor laser 1 in front of the vehicle headlamp 10 (in the direction of the arrow of the light beam shown in FIG. 1). Shine. As a material for the transparent member, acrylic, polycarbonate, glass, or the like can be used.

  The reflecting mirror 3 based on a parabolic curved surface is provided to face the translucent member 4 with respect to the phosphor 2. In the vehicle headlamp 10 according to Embodiment 1, the translucent member 4 is provided so as to cover the opening of the reflecting mirror 3 having a parabolic curved surface.

  The two phosphors 2 are arranged at substantially the focal position of the parabolic curved surface of the reflecting mirror 3, and the vehicle headlamp 10 reflects the light emitted from the phosphor 2 by the parabolic curved surface of the reflecting mirror 3. To irradiate the front of the vehicle headlamp 10.

  2A, the translucent member 4 has an installation base 6 for installing two phosphors 2, and the installation base 6 has an installation surface 7 on which the phosphors 2 are installed. The installation surface 7 is formed at a predetermined angle with respect to the optical axis. In the first embodiment, the installation surface 7 on which each of the two phosphors 2 is disposed is formed to be inclined toward the reflecting mirror 3 with respect to the optical axis direction. Here, the optical axis refers to the traveling direction of the light reflected by the parabolic curved surface of the reflecting mirror 3 and irradiated to the front of the vehicle headlamp 10.

  A reflective film 5 is preferably deposited between the two phosphors 2 and the installation surface 7. By depositing the reflective film 5, it is possible to guide the light to the reflecting mirror 3 while suppressing the light incident on the phosphor 2 from the semiconductor laser 1 from leaking to the translucent member 4. As the material of the reflective film 5, there are roughly a metal reflective film and a multilayer reflective film. As the metal reflective film, Ag, AL, Au, Cu, Ni, Pt, Rh, Sn, W, Cr and compounds containing them. The multilayer reflective film includes a metal oxide having a wide band gap.

  As shown in FIG. 1, in the first embodiment, the two semiconductor lasers 1 are arranged above and below the reflecting mirror 3, respectively. For example, light emitted from the semiconductor laser 1 a (1) disposed on the upper side enters the phosphor 2 a (2) disposed on the upper side of the two phosphors 2. The phosphor 2a (2) is disposed on the installation surface 7a (7) and faces the upper semiconductor laser 1a (1) at an angle. When light enters the phosphor 2 a (2), the phosphor 2 a (2) emits and emits light, and the emitted light is irradiated to the front of the vehicle headlamp 10 by the reflecting mirror 3.

  Similarly, the light emitted from the semiconductor laser 1 b (1) disposed on the lower side is incident on the phosphor 2 b (2) disposed on the lower side of the two phosphors 2. The phosphor 2b (2) is disposed on the installation surface 7b (7) and faces the lower semiconductor laser 1b (1) at an angle. When light enters the phosphor 2 b (2), the phosphor 2 b (2) emits and emits light, and the emitted light is irradiated to the front of the vehicle headlamp 10 by the reflecting mirror 3.

  In the following description of the first embodiment, the semiconductor laser 1, the phosphor 2, and the installation surface 7 positioned above the vehicle headlamp 10 are referred to as a semiconductor laser 1 a, a phosphor 2 a, and an installation surface 7 a, respectively. The semiconductor laser 1, the phosphor 2, and the installation surface 7 positioned below the headlamp 10 are referred to as a semiconductor laser 1 b, a phosphor 2 b, and an installation surface 7 b, respectively.

  With the configuration as described above, the vehicle headlamp 10 irradiates the phosphor 2 disposed at a substantially focal position of the reflecting mirror 3 with the light emitted from the semiconductor laser 1, and the light emitted and emitted from the phosphor 2. The front of the vehicle is irradiated by the reflecting mirror 3. Switchable vehicle headlamps that can form a light beam by turning on only the semiconductor laser 1a and turning off the semiconductor laser 1b, and turning on only the semiconductor laser 1b and turning off the semiconductor laser 1a. It is.

  In the present embodiment, the passing beam refers to irradiating light of the vehicle headlamp 10 downward in front of the vehicle, and the traveling beam irradiates the vehicle headlamp 10 substantially horizontally in front of the vehicle. To do. The same applies to the following embodiments.

  The area 3L of the low beam reflecting mirror is designed to have a multi-reflector design for the low beam, and the area 3H of the traveling beam reflecting mirror is designed to have a multi-reflector design for the running beam. In this way, each desired light distribution is formed.

  It is preferable that the phosphors 2a and 2b and the reflection film 5 are not parallel to the optical axis as in the case of the installation surface 7, but are inclined toward the reflection mirror 3 side. As a result, the emitted light of the phosphor 2 can be guided to the reflecting mirror 3 more efficiently (FIG. 2A).

  The inclination angles of the phosphors 2a and 2b and the reflection film 5 are different between the passing beam and the traveling beam. That is, the inclination angle θ formed by the phosphor 2a and the installation surface 7a with respect to the optical axis (dotted line d in FIG. 2B) is the same as that of the phosphor 2b and the installation surface 7b in the optical axis (FIG. 2B). It is smaller than the inclination angle φ formed with respect to the dotted line d). Thereby, the emitted light of the fluorescent substance 2 can be more efficiently guided to the reflecting mirror 3.

  The incident light of the semiconductor laser 1 desirably has a right angle or more with respect to the optical axis. FIG. 3 is a diagram showing the relationship between the light beam of the semiconductor laser 1 and the optical axis in the vehicle headlamp 10 according to the first embodiment. As shown in FIG. 3, when the angle ω formed by the light beam of the semiconductor laser 1 and the optical axis is ω ≦ 90 °, the specularly reflected light may be incident on the eyes of the observer A, which is dangerous. . Therefore, it is desirable to install the semiconductor laser 1 so that the angle ω formed by the light beam of the semiconductor laser 1 and the optical axis satisfies ω ≧ 90 °.

  As described above, the vehicular headlamp 10 according to the first embodiment is provided with the semiconductor laser 1 and the phosphor 2 one by one in the vertical direction of the vehicular headlamp 10, and by switching each, the passing beam Thus, it is possible to provide a vehicle headlamp 10 in which the traveling beam can be switched.

  In the first embodiment, two semiconductor lasers 1 and two phosphors 2 have been described. However, the present invention is not limited to this and may be two or more.

(Embodiment 2)
Hereinafter, the vehicle headlamp 20 according to the second embodiment will be described with reference to FIGS.

  When a deviation occurs in the optical path of the semiconductor laser 1 due to a vehicle crash or the like, it is necessary to turn off the semiconductor laser 1 in consideration of safety. Therefore, a light receiver and a control system for detecting the light amount of the semiconductor laser 1 are required. The vehicle headlamp 20 according to the second embodiment further includes a light receiver 13 that detects the amount of light and a control system. Other structures are the same as those of the vehicle headlamp 10 of the first embodiment.

  FIG. 4 is a side sectional view and a ray diagram of the vehicle headlamp 20 having the safety device of the second embodiment. The light receiver 13 includes a semiconductor light receiving element, and is electrically connected to the control unit. As shown in FIG. 4, the light receiver 13 is disposed on the side opposite to the light transmitting member 4 with respect to the reflecting mirror 3 and at a position where the light beam of the semiconductor laser 1 is regularly reflected by the reflecting film 5. Furthermore, it is preferable to arrange the light receiver 13 at the center of the reflecting mirror 3 from the viewpoint of design.

  As in the first embodiment, the vehicle headlamp 20 turns on only the semiconductor laser 1a and turns off the semiconductor laser 1b, turns on the passing beam, turns on only the semiconductor laser 1b, and turns off the semiconductor laser 1a. This is a switchable vehicle headlamp that can form a light distribution of a traveling beam.

  The light receiver 13 detects the amount of light that is regularly reflected by the reflection film 5 from the semiconductor laser 1 while the vehicle headlamp 20 is in operation. When the light quantity received by the light receiver 13 changes significantly from the normal light quantity (the light quantity when operating normally with a passing beam or a traveling beam), the controller connected to the light receiver 13 The operation of the semiconductor laser 1 is stopped.

  By doing in this way, it can prevent that the position of the semiconductor laser 1 shifts | deviates by the collision accident of a vehicle, etc., and a laser is directly irradiated to the exterior of the vehicle headlamp 20, and safety | security can be ensured.

  FIG. 5 is a side sectional view and a ray diagram of a vehicle headlamp 21 which is a modification of the vehicle headlamp 20 according to the second embodiment. In the vehicle headlamp 21, two semiconductor lasers 1 that are emitted in a direction substantially parallel to the optical axis are disposed behind the reflecting mirror 3 (on the side opposite to the translucent member 4 with respect to the reflecting mirror 3), and Arrange up and down. The light emitted from the semiconductor laser 1 is refracted by the reflecting plate 8 and is irradiated to the two phosphors 2 arranged at substantially the focal position of the reflecting mirror 3 based on a parabolic curved surface. Then, the light emitted from the irradiated phosphor 2 is irradiated by the reflecting mirror 3 in front of the vehicle.

  By arranging the semiconductor laser 1 in the rear of the reflector 3 in this way, the vertical width of the vehicular headlamp 21 can be reduced, and the mounting performance to the vehicle can be further improved.

(Embodiment 3)
Hereinafter, the vehicle headlamp 30 according to the third embodiment will be described with reference to the drawings. FIG. 6 is a side sectional view and a ray diagram of the vehicle headlamp 30 according to the third embodiment. The vehicular headlamp 30 includes a single semiconductor laser 1, a beam splitter 9, and a rotatable light shielding plate 14. About another structure, it is the same as that of the vehicle headlamp 20 of Embodiment 2. FIG.

  In the third embodiment, the vehicular headlamp 10 irradiates two phosphors 2 with one semiconductor laser 1, and the control unit controls the light distribution by controlling the light shielding plate 14.

  The structure of the vehicle headlamp 30 will be described. A single semiconductor laser 1 is arranged behind the reflecting mirror 3 and emits light in a direction substantially parallel to the optical axis. The light emitted from the semiconductor laser 1 is branched by a beam splitter 9 into a plurality of optical paths. Each of the branched light beams is refracted by the reflecting plate 8 and irradiates the two phosphors 2 disposed substantially at the focal position of the reflecting mirror 3 based on a parabolic curved surface. As a result, the two phosphors 2 each emit light, and the emitted light is emitted from the reflecting mirror 3 to the front of the vehicle.

  The rotationally movable light shielding plate 14 is disposed at a position where it can block light incident on the phosphor 2 positioned below the vehicle among a plurality of lights branched by the beam splitter 9 and rotates. Can transmit or block light.

  As described above, the vehicle headlamp 30 can selectively use the traveling beam or the low beam by using the rotatable light shielding plate 14 in the optical path of the light incident on the phosphor 2 positioned below the vehicle. This is a switchable vehicle headlamp. That is, when the vehicular headlamp 30 is used as a traveling beam, the light-shielding plate 14 is in a state in which light can be incident on the phosphor 2 positioned below, and the front of the vehicle is irradiated by the light emission radiation of the two phosphors 2. To do. When the vehicle headlamp 30 is a low beam, the light shielding plate 14 shields the light incident on the phosphor 2 located below and the front of the vehicle is emitted by the emission radiation of the phosphor 2 located above the vehicle. Irradiate.

  Thus, since the vehicle headlamp 30 of Embodiment 3 requires only one semiconductor laser 1, a switchable vehicle headlamp can be configured with a simple structure.

Here, the base-material shape of the installation base 6 in which the fluorescent substance 2 used in the above Embodiments 1-3 is installed is shown in FIG. The shape of the installation table 6 may be any shape that can adjust the incident angle of light incident on the phosphor 2 installed therein within a range in which the effect of the present invention can be obtained.
A triangular prism, a polygonal cylinder, a cone, a quadrangular pyramid, a polygonal pyramid, or the like. In the case of any of these shapes, the installation surface 7 is formed using each side surface. Even in these cases, it is desirable that the configuration shown in FIG.

  In the above first to third embodiments, the ratio (λ1 / λ2) of the blue excitation light λ1 from the semiconductor laser 1 to the yellow converted light λ2 from the phosphor 2 is higher than that of the traveling beam. Is preferably increased. This is an application of the Purkinje phenomenon. By doing so, visibility in peripheral vision in a dark place where light is distributed by a low beam is improved.

  FIG. 8 is a side sectional view and a ray diagram of a modification of the vehicle headlamps 21 and 30 according to the second and third embodiments. FIG. 9 is a structural diagram of the translucent member 4 of FIG. As shown in FIGS. 8 and 9, the translucent member of the vehicle headlamp 21 which is a modification of the second embodiment shown in FIG. 5 and the vehicle headlamp 30 of the third embodiment shown in FIG. 4, the translucent member 4 and the reflection plate 8 may be formed simultaneously, or the reflection film 5 and the reflection plate 8 may be formed simultaneously. Thus, simultaneous formation of the reflective film 5 and the reflective plate 8 leads to a reduction in the number of processes and an improvement in alignment accuracy.

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 101 Semiconductor laser 2, 2a, 2b, 102 Phosphor 3,103 Reflector 3L Reflective mirror area 3H Travel beam reflector area 4 Translucent member 5, 105 Reflective film 6 Installation Table 7, 7a, 7b Installation surface 8 Reflector 9 Beam splitter 10, 20, 21, 30, 100 Vehicle headlamp 12 Emitter 13 Light receiver 14 Light shield 14

Claims (9)

First and second phosphors;
A semiconductor laser provided separately from the first and second phosphors and irradiating the first and second phosphors from different directions;
A reflecting mirror based on a parabolic curved surface for reflecting light generated from the first and second phosphors, and arranged such that the first and second phosphors are positioned at substantially the focal points thereof;
A translucent member that is provided to face the reflecting mirror and transmits the light of the first and second phosphors reflected by the reflecting mirror;
A controller that controls the semiconductor laser and controls light distribution by selectively irradiating the first and second phosphors with light of the semiconductor laser;
Vehicle headlamp with The semiconductor laser comprises a first semiconductor laser and a second semiconductor laser,
The first semiconductor laser and the second semiconductor laser are arranged so as to irradiate light to the first phosphor and the second phosphor, respectively.
The control unit selectively irradiates light to the first and second phosphors by controlling the first semiconductor laser and the second semiconductor laser, respectively.
The vehicle headlamp according to claim 1. A beam splitter for splitting the light flux of the semiconductor laser;
A movable light-shielding plate provided at a position capable of shielding one light beam incident on the second phosphor among the divided light beams;
With
The control unit controls the light distribution by controlling the light shielding plate to shield or transmit the one light flux,
The vehicle headlamp according to claim 1. Further comprising an installation table for arranging the first and second phosphors;
The installation table has an installation surface that is a surface on which the first and second phosphors are arranged and forms a predetermined angle with respect to the optical axis of the paraboloid surface.
The vehicle headlamp according to any one of claims 1 to 3. The vehicle headlamp according to claim 4, wherein a reflection film is formed on the installation surface. The installation base has a shape of any one of a semi-cylinder, a triangular column, and a polygonal column,
The installation surface is a side surface of any one of the shapes.
The vehicle headlamp according to claim 4. The installation base has a shape of any one of a cone, a quadrangular pyramid, and a polygonal pyramid,
The installation surface is a side surface of any one of the shapes.
The vehicle headlamp according to claim 4. The light beam of the semiconductor laser is incident on at least one of the first and second phosphors from a direction perpendicular to the optical axis of the parabolic curved surface or inclined toward the translucent member.
The vehicle headlamp according to any one of claims 1 to 7. A semiconductor light receiving element that receives the regular reflection component of the semiconductor laser is disposed on the side opposite to the light transmitting member with respect to the reflecting mirror.
The vehicle headlamp according to any one of claims 1 to 8.