JP2000200510A - Automotive headlamp - Google Patents

Abstract

(57) [Summary] [Problem] Ideal for deformed reflectors. SOLUTION: A movable shade 4 is switchably movable in a direction Z′-Z ′ inclined with respect to an optical axis ZZ. As a result, by moving the movable shade 4 in the direction Z'-Z 'inclined with respect to the optical axis Z-Z, the range of the emission angle from the discharge lamp 1 to the reflecting surfaces 21 and 22 is changed.
Is larger on the opposite side D than on the inclined movement side C. Therefore, the light L1 and L2 from the discharge lamp 1 can be incident on the entire surface of the left and right asymmetrical first reflecting surface 21 and the second reflecting surface 22 with a small amount of movement of the movable shade 4, and the amount of light in the high beam is insufficient. Never do. Therefore, it is optimal for the left-right asymmetrical first reflecting surface 21 and second reflecting surface 22, that is, the so-called odd-shaped reflector 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a discharge lamp (a high-pressure metal vapor discharge lamp such as a metal halide lamp, a high-intensity discharge lamp (HID), etc.) as a light source. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called two-light type vehicle headlamp obtained by switching between a low-beam light distribution pattern and a high-beam light distribution pattern during traveling, and more particularly to an asymmetric first and second reflection surfaces, so-called irregular reflectors. The present invention relates to an automobile headlamp which is most suitable for a vehicle.

[0002]

2. Description of the Related Art This type of vehicle headlamp will be described below with reference to FIGS. The headlamp for an automobile generally includes a discharge lamp 100 and the discharge lamp 100.
A first reflection surface 101 on which a light distribution pattern of a predetermined low beam is obtained by reflecting light L1 from the discharge lamp 100;
The light L1 and L2 from the second reflector are reflected together with the first reflection surface 101 to obtain a predetermined high beam light distribution pattern.
The reflection surface 102, a low beam position where the light distribution pattern of the low beam is obtained (a position indicated by a solid line in FIG. 8), and a high beam position where the light distribution pattern of the high beam is obtained (a position indicated by a chain line in FIG. 8). 8, the light reflected from the first reflection surface 101 and the second reflection surface 102 of the light from the discharge lamp 100 is disposed so as to be switchable in the direction of the solid arrow and the direction of the alternate long and short dash line in FIG. L11, L2
A shade 103 for blocking direct light (not shown) directly emitted to the front other than 2 and switching between the low beam light distribution pattern and the high beam light distribution pattern;
And a driving means (not shown) for switching the shade 103 between the low beam position and the high beam position. In the above-described vehicle headlamp, a so-called irregular reflector, that is, the first reflecting surface 101 is used.
In addition, in this example, the distance A from the right end of the reflector to the optical axis ZZ is equal to the distance A from the left end of the reflector to the optical axis Z. It has a left-right asymmetric shape that is smaller than the distance B to −Z.

In the above-described automobile headlamp, when the discharge lamp 100 is turned on, light L1 from the discharge lamp 100,
L2 is reflected by the first reflection surface 101 and the second reflection surface 102, and the reflected lights L11 and L22 are emitted forward. Then, by operating the driving means to switch the shade 103 between the low beam position and the high beam position, a predetermined low beam light distribution pattern and a predetermined high beam light distribution pattern are obtained by switching. In addition, the shade 103 reflects the reflected light L <b> 1 of the light from the discharge lamp 100 reflected by the first reflection surface 101 and the second reflection surface 102.
1. Direct light emitted directly to the front other than L22 is blocked to prevent glare light. As the above-described headlamp for an automobile, for example, Japanese Patent Application Laid-Open No. 9-92005
There is one described in Japanese Patent Publication No.

[0004]

However, in the above-mentioned conventional headlamp for a vehicle, the shade 103 is moved along the optical axis Z-.
Since the movement is switched in the Z direction, there is no problem when the reflector is symmetric, but there is a problem when the reflector is asymmetric. That is, as shown in FIG.
When 03 is located at the high beam position indicated by the dashed line, the right side of the reflector is not a problem, but the left side is
Of the light from the discharge lamp 100, the light from L2 to L3 (indicated by the two-dot chain line in FIG. 8) is blocked by the shade 103 and does not enter the second reflection surface 102, so that the amount of light in the high beam is insufficient. I do. Therefore, as shown in FIG. 8, by extending the switching movement distance of the shade 103 from the position shown by the dashed line to the position shown by the dashed line, the light L3 from the discharge lamp 100 is also transmitted to the second reflection surface 102. And the shortage of light quantity in the high beam can be eliminated. However, in this case, the shade 103
Since the switching movement distance becomes large, the driving means becomes large. As a result, the above-mentioned conventional automobile headlamp has a problem that it is not suitable for an asymmetrical first reflecting surface and a second reflecting surface, a so-called irregular reflector.

The present invention relates to an improvement of the above-mentioned automobile headlamp, and an object thereof is to provide an asymmetric first headlamp.
It is an object of the present invention to provide an automobile headlamp that is most suitable for a reflecting surface and a second reflecting surface, a so-called irregular reflector.

[0006]

In order to achieve the above object, the present invention is characterized in that the shade can be switched in a direction inclined with respect to the optical axis.

As a result, in the automotive headlamp of the present invention, the range of the emission angle from the discharge lamp to the reflection surface is changed from the side of the shade that is inclined by moving the shade in the direction inclined with respect to the optical axis. Is also larger on the other side.
For this reason, the light from the discharge lamp can be incident on the entire surface of the asymmetrical first reflecting surface and the second reflecting surface with a small amount of movement of the shade, and the amount of light in the high beam does not become insufficient. Therefore, it is optimal for an asymmetrical first reflecting surface and a second reflecting surface, a so-called irregular reflector.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a vehicle headlamp according to the present invention will be described below with reference to FIGS.
In this example, a description will be given of an automobile headlamp in a left-hand traffic section. In the case of the right-hand traffic division, the left and right are reversed. Here, in this specification and the drawings, the symbol “L”
Indicates the left side when looking forward from the driver's seat side, the symbol "R" indicates the right side when looking forward from the driver's seat side, and the symbol "U" indicates the forward direction from the driver's seat side. , And the reference numeral “D” indicates the lower side when looking forward from the driver's seat side. Further, reference numeral "HH" indicates a horizontal line, reference numeral "VV" indicates a vertical line, and reference numeral "ZZ" indicates an optical axis.

[Structure of Embodiment] In the drawings, reference numeral 1 denotes a discharge lamp. The discharge lamp 1 is detachably attached to a socket 10, and the socket 10 is detachably attached to a reflector 2 described later. As a result,
The discharge lamp 1 is arranged at a predetermined position in the reflector 2.

In the figure, reference numeral 2 denotes a reflector. The light L1 from the discharge lamp 1 is reflected on the inner surface of the reflector 2 to form a predetermined low beam light distribution pattern LP shown in FIG.
And the light L1 from the discharge lamp 1,
L2 is reflected together with the first reflection surface 21, and a second reflection surface 22 is provided to obtain a predetermined high beam light distribution pattern HP shown in FIG. This first reflecting surface 21
As shown in FIG. 1 and FIG. 2, the first reflection surface 21 is arranged inside and the second reflection surface 22 is arranged outside.

Here, the predetermined low-beam light distribution pattern LP and the predetermined high-beam light distribution pattern HP are referred to as European light distribution standard ECEREG. Or a light distribution pattern conforming thereto (for example, Japanese type approval standard) or a light distribution pattern conforming to a light distribution standard such as FMVSS of the North American light distribution standard. In the low beam light distribution pattern LP described above,
Light distribution is standardized to limit glare. As a result, as shown in FIG. 5, the low beam light distribution pattern LP has a light-dark boundary line LP1 that is considered for oncoming vehicles and pedestrians on the left road shoulder. In other words, the light-dark boundary line LP1 is between the right end and substantially the center, and the horizontal line HL-
A horizontal line portion LP2 located slightly below the HR and a gently, for example, 15 ° left upper portion, from a substantially horizontal line portion LP2 so as to visually recognize the left shoulder pedestrian without dazzling the left shoulder pedestrian. Gently inclined line portion L
P3. On the other hand, in the above-described high beam light distribution pattern HP, the maximum light intensity value and the maximum light intensity band are standardized. As a result, the above-described high beam light distribution pattern HP has a hot zone HZ (maximum luminous intensity zone including the maximum luminous intensity point) at the center as shown in FIG.

In FIG. 1, reference numeral 3 denotes a fixed shade (main shade) fixed to the reflector 2. As shown in FIGS. 2 to 4, the fixed shade 3 has a cylindrical cover portion 30 having a closed front portion and an open rear portion, and fixed legs integrally projecting from the lower end of the opening of the cover portion 30. And a unit 31. The fixed leg 31 is fixed to the reflector 2 by a screw or the like (not shown). As a result, the cover 30 is disposed in front of the discharge lamp 1. The fixed shade 3 emits direct light (not shown) of the light from the discharge lamp 1 that is directly radiated to the front other than the reflected lights L11 and L22 reflected by the first reflecting surface 21 and the second reflecting surface 22. It shields light.

In FIG. 1, reference numeral 4 denotes a movable shade (sub shade). As shown in FIGS. 1 to 4, the movable shade 4 is driven by a driving unit 5 described below outside the discharge lamp 1 and inside the cover 30 of the fixed shade 3.
A low beam position where a predetermined low beam light distribution pattern LP is obtained (the position indicated by a solid line in FIGS. 1 and 2;
1) and a high beam position at which a predetermined high beam light distribution pattern HP is obtained (the position shown by the dashed line in FIGS. 1 and 2 and the position shown in FIG. 4). 1 and 2, ie, about 1 optical axis Z-Z with respect to the optical axis Z-Z.
It is arranged to be switchable in the direction Z′-Z ′ inclined by 0 °. The movable shade 4 includes a predetermined low beam light distribution pattern LP and a predetermined high beam light distribution pattern H
It switches to P.

In FIG. 1, reference numeral 501 denotes a driving means for moving the movable shade 4 between a low beam position and a high beam position. As shown in FIGS. 2 to 4, the driving means 501 is of a lever 502 type, and is mounted on a base 50 fixed to the reflector 2 by a screw or the like.
Of the first shaft 50
3 so as to be rotatable. This lever 5
A plunger (shaft) 56 of a solenoid 51 mounted on the base 50 is rotatably attached to one end of the base 02 via a hook 504 and a first pin 505. The other end of the lever 502 has a forked shape, and a movable stay 507 is rotatably attached to the other end of the forked lever 502 via a second shaft 506. The movable shade 4 described above is fixed to the stay 507. The tension coil spring 55 described above is interposed between the base 50 and the second pin 510 substantially at the center of the lever 502. As a result, the movable shade 4 is moved by the tension coil spring 55
As a result, it is always pulled to the low beam position side. In the figure, reference numerals 500 and 508 denote a stopper on the low beam position side and a stopper on the high beam position side.

A fixed guide rail 52 and a stay 50 fixed to the movable shade 4 are provided between the base 50 fixed to the reflector 2 (the first reflecting surface 21 and the second reflecting surface 22). A movable guide rail 53 is interposed. The guide rails 52 and 53 guide the switching movement of the movable shade 4 between the low beam position and the high beam position. That is, the guide direction E of the guide rails 52 and 53 (indicated by a dashed line in FIGS. 3 and 4) and the switching movement direction Z'-Z 'of the movable shade 4 are substantially parallel. As a result, the guide direction E of the guide rails 52 and 53 is set with respect to the optical axis Z-Z.
For example, by inclining by about 10 °, the movable shade 4
Can be inclined, for example, by about 10 ° with respect to the optical axis ZZ. Thus, by changing the guide direction E of the guide rails 52 and 53, the switching movement direction Z'-Z 'of the movable shade 4 is changed to the optical axis Z.
-Z can be changed arbitrarily.

In the figure, reference numeral 6 denotes attenuation stop means. The damping stop means 6 includes a rotary damper 60, a cam 61
And a pin 62. That is, the rotary damper 60 is connected to the fixed base 5 via a screw or the like.
It is fixed to 0. The rotary shaft 6 of the rotary damper 60
The cam 61 is fixed to 4. This cam 61
Is provided with a fan-shaped groove around the periphery of the groove, and a first contact portion is provided at one edge of the groove, and a second contact portion is provided at the other edge. On the other hand, the pin 62 is connected to the movable side stay 5.
07. The above-mentioned rotary damper 60 has a viscous liquid (not shown) sealed in the main body, and
A blade (not shown) directly connected to the rotating shaft 64 is rotatably housed in the main body, and a load of viscous liquid is applied to the rotating shaft 64 via the blade. The rotation speed of the cam 61 fixed to 64 is attenuated.

[Effects of the Embodiment] The automotive headlamp according to the first embodiment of the present invention has the above-described configuration.
The switching operation between P and the high beam light distribution pattern HP will be described. First, when the discharge lamp 1 is turned on, the lights L1 and L2 from the discharge lamp 1 are reflected by the first reflection surface 21 and the second reflection surface 22, and the reflected lights L11 and L22 are emitted forward.

At normal times, the movable shade 4 is moved to the low beam position (solid line in FIGS. 1 and 2 and FIG. 3) by the tensile force (elastic action) of the tension coil spring 55.
(The position indicated by). At this time, the light L1 from the discharge lamp 1 is reflected by the first reflecting surface 21, and the reflected light L
11 is irradiated forward, and a predetermined low beam light distribution pattern LP shown in FIG. 5 is obtained.

Next, when the coil of the solenoid 51 is energized, the plunger 56 is attracted toward the high beam position against the tensile force of the tension coil spring 55. With the suction of the plunger 56, the movable shade 4 moves from the low beam position to the high beam position (the position shown by the one-dot chain line in FIGS. 1 and 2 and the position shown in FIG. 4) via the stay 507 and the guide rails 52 and 53. Then, at the high beam position, it is fixed and held by the attractive force of the coil of the solenoid 51. When the movable shade 4 is switched from the low beam position to the high beam position, the lights L1 and L2 from the discharge lamp 1 are reflected by the first reflecting surface 21 and the second reflecting surface 22, and the reflected lights L11 and L22 are irradiated forward. Thus, a predetermined high beam light distribution pattern HP shown in FIG. 6 is obtained. When the movable shade 4 is located at the high beam position, the rising portion 509 of the stay 507 is in contact with the stopper 508 on the high beam side as shown in FIG.

Then, when the energization of the coil of the solenoid 51 is cut off, the movable shade 4 is pulled from the high beam position to the low beam position by the tension force of the tension coil spring 55 via the stay 507 and the guide rails 52 and 53, and is fixed. Will be retained. This movable shade 4
Is switched from the high beam position to the low beam position, whereby the predetermined high beam light distribution pattern H shown in FIG.
A predetermined low beam light distribution pattern LP shown in FIG.
Switch to When the movable shade 4 is located at the low beam position, as shown in FIG.
Is in contact with the low beam side stopper 500.

As described above, in the vehicle headlamp according to the present invention in this embodiment, the movable shade 4 is connected to the optical axis Z-.
For example, as shown in FIG. 1, the range of the output angle from the discharge lamp 1 to the reflection surfaces 21 and 22 is changed from the direction Z ′ to the direction Z′−Z ′ inclined at 10 ° with respect to Z. The opposite side (left side) D is larger than the inclined movement side (right side) C of the movable shade 4. As a result, the left and right asymmetrical first reflecting surface 21 and the second reflecting surface 21
The light L1 and L2 from the discharge lamp 1 can be made incident on the entire surface of the reflection surface 22, so that the amount of light in the high beam does not become insufficient. Therefore, it is optimal for the left-right asymmetrical first reflecting surface 21 and second reflecting surface 22 of this example, that is, the so-called irregular shaped reflector 2. Note that the automotive headlamp of the present invention can be applied to an asymmetrical reflector having an asymmetrical reflection surface other than the left-right asymmetrical type in this example.

[Other Functions and Effects of the Embodiment] In particular, in this embodiment, the first reflection surface 21 and the second reflection surface 22
A guide rail 52 for guiding switching movement between the low beam position and the high beam position of the movable shade 4 is provided between the base 50 fixed to the reflector 2 side and the stay 507 fixed to the movable shade 4 side. , 53 are interposed, so that their guide rails 52, 53
, The switching movement direction Z′-Z ′ of the movable shade 4 can be arbitrarily changed with respect to the optical axis ZZ. Moreover, the guide rails 52, 5
3, the movement of the movable shade 4 is guided and controlled through the stay 507, so that the movable shade 4 can be accurately moved without any play.

In this embodiment, since the driving means 501 is of the lever 502 type, the amount of movement of the plunger 56 of the solenoid 51 (stroke of the solenoid 51) is small. That is, the first shaft 503 and the first
The distance between the pins 505 × the attraction force of the coil of the solenoid 51 and the distance between the first shaft 503 and the second shaft 506 × the operating force for moving the movable side such as the movable shade 4 are as follows:
The first shaft 50 of the lever 502 described above
3, the distance between the first pins 505, the first shaft 503,
The stroke of the solenoid 51 can be adjusted to be smaller than the movement amount of the movable shade 4 by the ratio with the distance between the second shafts 506. As a result, miniaturization and simplification of the driving means 501, accurate movement control of the movable shade 4, and the like can be achieved.

Further, in this embodiment, the amount of movement of the movable shade 4 is smaller than the amount of movement of a single shade having both functions of the fixed shade 3 and the movable shade 4, so that the above-described solenoid 51 is used. Is further reduced, so that the size of the solenoid 51 can be reduced, and in other words, the drive unit 501 can be reduced in size and the movable shade 4 can be moved accurately.

In this embodiment, as shown in FIGS. 3 and 4, the second shaft 5 on which the force for moving the movable shade 4 and the stay 507 by the lever 502 acts.
06, the center O2 of the stay 507, the guide rail 53 on the movable side and the fixed point (screw 511)
Since the guide rails 52 and 53 are located on the center line in the guide direction E, a rotational moment is applied to the guide rails 52 and 53. That is, since no force is applied to the side surfaces of the guide rails 52 and 53, Guide rail 5
3 moves smoothly.

Further, in this embodiment, since the damping stop means 6 is provided, the movable shade 4
When the movable shade 4 stops at the low beam position or the high beam position at the time of switching, the movement speed of the movable side such as the movable shade 4, the stay 507, and the movable side guide rail 53 is attenuated by the action of the attenuation stop means 6. After that, since the movable side of the movable shade 4 and the like stops, the contact noise generated when the movable side contacts the fixed side can be reduced.

Further, in this embodiment, the solenoid 51 of the driving means 501 is operated by the lever 502 type.
Sideways with respect to the movable shade 4 and the discharge lamp 1, and
It can be located above the lower side of the reflector 2. As a result, for example, in the case of a so-called reflector movable type vehicle headlamp in which the periphery of the reflector 2 is supported by a lamp housing (not shown) via an optical axis adjusting mechanism so as to be capable of adjusting the optical axis, the driving means 501 is used. The distance (arm) from the center of gravity (mainly the center of gravity of the solenoid 51) to the support point of the optical axis adjustment mechanism that supports the periphery of the reflector 2 becomes small,
The rotation moment applied to the support point of the optical axis adjustment mechanism is small, and the weight balance is improved. In addition, a space for storing the driving means 501 below the reflector 2 is reduced, and the entire headlamp for a vehicle is made compact.

[Applicable range of the automotive headlamp of the present invention] In the automotive headlamp of the present invention, the reflector 2 and the lamp housing (not shown) are separate bodies, and the reflector 2 is a lamp. A so-called reflector movable type headlamp for a vehicle, which is equipped with an optical axis adjustable with respect to a housing, and a reflector 2 and a lamp housing are integrated with each other, and the integrated lamp unit is attached to the vehicle body. The present invention can be applied to both a so-called movable lamp unit type automobile headlamp equipped with an optical axis adjustable.

Further, in the automobile headlamp of the present invention, the tension coil spring 55 is connected between the second shaft 506 and the base 50 by the guide rail 5.
2, 53 may be arranged in the vertical direction of the guide direction E (center line). In this case, the tension coil spring 55
Of the guide rails 52 and 53 coincides with the center line of the guide direction E of the guide rails 52 and 53, so that the force for returning the movable shade 4 and the stay 507 to the low beam position is reduced.
Since it acts on the center line of the guide direction E of 2, 53,
Since no force is applied to the side surfaces of the guide rails 52 and 53, the movable side guide rail 53 moves smoothly. Therefore, since the movable shade 4 and the stay 507 can be returned to the low beam position with a small elastic return force, the size of the tension coil spring 55 can be reduced, and the size of the solenoid 51 that operates over the small elastic force can be reduced. Is also planned.

Furthermore, in the automotive headlamp of the present invention, a single shade having both the functions of the fixed shade 3 and the movable shade 4 may be used instead of the fixed shade 3 and the movable shade 4. .

In the vehicle headlamp of the present invention, the movable shade 4 (single shade) is used as a stay (bracket) without using the lever 502 in place of the lever 502 type driving means 501 described above. A drive means for directly switching the movement with a solenoid via the controller may be used. Also in this case, the guide rails 52 and 53 may be used.

Further, in the automobile headlamp of the present invention, if a magnet that acts magnetically on the low beam position side is used for the solenoid 51, the size of the solenoid 51 can be further reduced.

Further, in the automotive headlamp of the present invention, a guide rail in which a group of steel balls is interposed between the side surface of the fixed side guide rail 52 and the side surface of the movable side guide rail 53 is used. Other guide rails, for example, a guide rail on the fixed side engaged with both left and right shoulders of the guide rail on the movable side may be used.

Furthermore, in the automotive headlamp of the present invention, an elastic fitting means is provided between the fixed shade 3 side and the movable shade 4 side so that the low beam position and / or the high beam position of the movable shade 4 can be maintained. By holding the movable shade 4, vibration of the movable shade 4 is prevented, regular light distribution patterns LP and HP are obtained, the stability of the movable shade 4 is improved, and the stay 54 supporting the movable shade 4 is supported.
And the stay 54 is excellent in durability such as metal fatigue.

[0035]

As is apparent from the above description, the headlamp for an automobile of the present invention switches the shade in a direction inclined with respect to the optical axis. The range is larger on the opposite side of the shade than on the inclined movement side. For this reason, the light from the discharge lamp can be incident on the entire surface of the asymmetrical first reflecting surface and the second reflecting surface with a small amount of movement of the shade, and the amount of light in the high beam does not become insufficient. Therefore, it is optimal for an asymmetrical first reflecting surface and a second reflecting surface, a so-called irregular reflector.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view (a cross-sectional view in a state in which a lamp housing and a lens are omitted) illustrating an embodiment of a vehicle headlamp according to the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is an enlarged cross-sectional view of a main part in a state where a shade is located at a low beam position.

FIG. 4 is an enlarged cross-sectional view of a main part in a state where a shade is located at a high beam position.

FIG. 5 is an explanatory diagram of a light distribution pattern of a low beam.

FIG. 6 is an explanatory diagram of a light distribution pattern of a high beam.

FIG. 7 is a front view showing a conventional automobile headlamp (a front view in a state where a lamp housing and a lens are omitted).

FIG. 8 is a transverse sectional view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Discharge lamp, 10 ... Socket, 2 ... Reflector, 21 ...
1st reflection surface, 22 ... 2nd reflection surface, 3 ... fixed shade, 4
... Movable shade, 501 ... Drive means, 51 ... Solenoid, 55 ... Tension coil spring (elastic member), L
1, L2: light from a discharge lamp, L11: reflected light on a first reflecting surface, L22: reflected light on a second reflecting surface, LP: a light distribution pattern of a low beam, HP: a light distribution pattern of a high beam,
502: lever, 503: first shaft, 504: hook, 505: first pin, 506: second shaft, 507
... stay, 510 ... second pin, 6 ... damping means, 60 ... rotary damper, 61 ... cam, 62 ... pin.

Claims (2)

[Claims] 1. A discharge lamp, and a first reflection surface comprising an asymmetric first reflection surface and a second reflection surface, wherein a first low reflection light pattern is obtained by reflecting light from the discharge lamp. A second reflection surface that reflects light from the discharge lamp together with the first reflection surface to obtain a predetermined high beam light distribution pattern; a low beam position at which the low beam light distribution pattern is obtained; and a light distribution of the high beam. A shade between a high beam position at which a pattern is obtained and a switchable switch in a direction inclined with respect to an optical axis, and switching between the low beam light distribution pattern and the high beam light distribution pattern; and And a driving means for switching between the low beam position and the high beam position. 2. Between the low beam position and the high beam position of the shade, between a base fixed to the first reflection surface and the second reflection surface and a stay fixed to the shade side. A guide rail that guides the switching movement in the direction inclined with respect to the optical axis.
The automotive headlamp according to claim 1, wherein the headlamp is interposed.