JP7058166B2 - Vehicle headlights - Google Patents

Description

The present invention relates to a vehicle headlight that irradiates a low beam with a light distribution pattern having a horizontal cut-off line and a diagonal cut-off line.

In FIGS. 2 and 3 of Patent Document 1, a cut-off line light for a low beam having a horizontal cut-off line and a cut-off line descending diagonally by an inner shade is emitted from a light source valve, and the emitted cut-off line light is converted into a horizontal cut-off line. The oncoming lane is reflected forward by a reflector having a horizontal cut-offline forming area having a horizontal cut-offline forming end to imitate and a diagonal cut-offline forming area having a diagonally cut-offline forming end to imitate a diagonally descending cutoff-line. A vehicle headlight that forms a light distribution pattern forward with a horizontal cut-off line on the side and a diagonal cut-off line that tilts diagonally upward toward the own lane is disclosed.

Japanese Unexamined Patent Publication No. 2001-57103

In the vehicle headlight of Patent Document 1, since the light source valve irradiates the reflector with the cut-off line light having the horizontal cut-off line in advance, the reflector also has an end portion having a shape following the horizontal cut-off line (horizontal cut-off line forming end). The glare light on the oncoming lane side is reduced by providing the above. However, some high-efficiency light source valves in recent years have an inner shade that forms a cut-off line that inclines diagonally downward to the left and right, and the cut-off line light from such a high-efficiency light source valve is shown in FIG. 2 of Patent Document 2. When reflected by a reflector having such a horizontal cut-off line forming end, there arises a problem that a part of the light emitted diagonally downward from the horizontal direction is incident on the non-reflective region and the amount of light on the oncoming lane side is insufficient.

On the other hand, when the cut-off line light of a high-efficiency light source bulb having a cut-off line that tilts diagonally downward to the left and right is reflected back as it is by a reflector having a cut-off line forming end that imitates the cut-off line that tilts diagonally downward to the left and right, they face each other. There is a problem in that the cut-off line on the lane side extends diagonally upward from the horizontal to generate glare light, which dazzles the oncoming vehicle.

In view of the above problems, the present application is to prevent glare light on the oncoming lane side caused by a high-efficiency light source valve that emits light having a cut-off line that is inclined diagonally downward to the left and right, thereby irradiating the oncoming lane side from a distance. It provides a vehicle headlight with improved performance.

Forming cut-off line light with left-down cut-off line and right-down cut-off line that incline diagonally downward to the left and diagonally downward to the right from the vicinity of the optical axis in the direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and in the horizontal direction, respectively. Right cut that has a shape that imitates the left-down cut-off line and forms an oncoming lane-side cut-offline, and has a shape that imitates the left-cut offline formation end and the right-down cut-offline that forms the own lane-side cut-offline. In a vehicle headlight having a reflector that reverse-reflects the cut-offline light forward by a reflecting surface having an offline forming end, the reflector is formed corresponding to a left-down cut-off line. It is desirable to reflect the cut-off line light so that the horizontal cut line is used.

(Action) The reflector reflects the light directed diagonally upward on the oncoming lane side (right lane side) in a country with left-hand traffic to form a horizontal cut-off line, which prevents glare on the oncoming lane side and is horizontal. Luminous flux near the cutoff line increases.

In addition, cut-off line light having a left-down cut-off line and a right-down cut-off line that incline diagonally downward to the left and diagonally downward to the right from the vicinity of the optical axis in a direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and in the horizontal direction, respectively. It has a shape that imitates the left-down cut-off line, and has a shape that imitates the left-cut-offline formation end that forms the own lane side cut-off line and the right-down cut-off line, and forms the oncoming lane-side cut-off line. In a vehicle headlight having a reflector that reverse-reflects the cut-off line light forward by a reflecting surface having a right cut-off line forming end, the reflector is formed on the opposite lane side corresponding to the right-down cut-off line. It is also desirable to reflect the cut-offline light so that the cut-off line is the horizontal cut line.

(Action) The reflector reflects the light directed diagonally upward on the oncoming lane side (left lane side) in a country with right-hand traffic to form a horizontal cut-off line, which prevents glare on the oncoming lane side and is horizontal. Luminous flux near the cutoff line increases.

Further, the headlight for a vehicle may have a light-shielding member that covers the direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and the horizontal direction from the vicinity of the optical axis to the lower left and the lower right. desirable.

(Action) The light-shielding member shields the light from the vicinity of the optical axis toward the lower left and lower right than the lower right, so that the cut-off line light having the left-down cut-off line and the right-down cut-off line is applied to the reflecting surface of the reflector. Irradiate.

Further, in a vehicle headlight, the reflective surface of the reflector is composed of a plurality of reflection segments that reflect cut-offline light, and the plurality of reflection segments are first cut-offline forming segments having a left cut-off line forming end. One of the first and second cut-off line forming segments having a second cut-off line forming end having a right cut-off line forming end and a general-purpose segment having no cut-off line forming end and forming an oncoming lane side cut-off line. However, it is also desirable that the cut-off line is formed so as to reflect light with the cut-off line horizontal.

(Action) The cut-off line forming segment, which has a forming end having a shape that imitates the diagonal cut-off line, reflects the cut-off line on the oncoming lane side horizontally without being slanted while receiving the cut-off line light from the light source. Luminous flux near the cutoff line increases.

One of the left cut-offline forming end or the right cut-offline forming end of the reflector forming the horizontal cut-off line is approximately + 5 ° downward above the corresponding left-down cut-off line and right-down cut-off line of the cut-off line light. It is also desirable that it is formed at an angle within the range.

(Action) The left and right cut-off line forming ends of the reflector formed by tilting left and right downward with respect to the direction orthogonal to the optical axis and the horizontal direction are from the horizontal direction to the left and right downward in the cut-off line light incident from the light source. The left and right descending cut-off lines of the cut-offline light incident on the reflector can be left and right by forming with a margin that is slightly larger (up to approximately + 5 °) than the left and right descending cut-off lines that are formed at an angle. It is perfectly incident on the reflection area inside the cut-off line forming edge.

Further, in the headlight for a vehicle, it is desirable to provide a supplementary light region for reflecting light in the vicinity of the cut line on the opposite lane side in the general-purpose segment.

(Action) The light of the general-purpose segment is irradiated near the horizontal cut-off line on the oncoming lane side to further increase the luminous flux near the horizontal cut-off line.

According to the vehicle headlights, even if a high-efficiency light source that forms a symmetrical descending cut-off line is adopted, the generation of glare light that dazzles the vehicle on the oncoming lane side is prevented and the vicinity of the horizontal cut-off line on the oncoming lane side is prevented. The luminous flux of the light reflected on the vehicle increases and the horizontal cut-off line becomes clearer, which improves the distant visibility on the oncoming lane side.

According to vehicle headlights, even if a high-efficiency light source with diagonal cut-off line is adopted, glare light on the oncoming lane side is prevented and the luminous flux of light reflected near the horizontal cut-off line on the oncoming lane side increases. By making the horizontal cut-off line clearer, the distant visibility on the oncoming lane side is improved.

According to the vehicle headlights, the left and right descending cut-offline light emitted from the light source is perfectly incident on the inner reflection area near the left and right cut-off line forming edges of the reflector, so that the horizontal cut-off line is used. Becomes clearer and the distant visibility on the oncoming lane side is further improved.

According to the vehicle headlight, the distant visibility on the oncoming lane side is further improved by using a part of the light of the general-purpose segment having no cut-off line forming end to generate the oncoming lane side cut-off line.

The vertical sectional view of the headlight for a vehicle which concerns on embodiment of this invention. (A) Left side view of the light source bulb of this embodiment. (B) An enlarged plan view of the area around the inner shade of the light source bulb as viewed from above. (C) Cross-sectional view taken along the line II of FIG. 2 (b). Front view of the reflector of this embodiment. The figure which shows the state which seen the light distribution pattern for a low beam by the headlight for a vehicle of this embodiment perspective from the rear of a reflector. Explanatory drawing which looked at the light distribution pattern for a low beam by the headlight for a vehicle of this embodiment from the upper side of a vehicle.

Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 1 to 5. In each figure, the direction of the road as seen from each part of the vehicle headlights and the driver of the vehicle equipped with the vehicle headlights (upper: lower: left: right: front: rear = Up: Lo: Le). : Ri: Fr: Re).

The vehicle headlight 1 in the present embodiment will be described with reference to FIG. The vehicle headlight 1 is formed by providing a lamp unit 4 and an extension reflector 11 in a lamp chamber S formed inside a lamp body 2 and a transparent or translucent front lens 3.

The lamp unit 4 is composed of a light source bulb 5, a reflector 6, and an outer shade 7. The light source valve 5 is a high-efficiency light emitting valve such as a halogen valve having a low beam filament 8, an inner shade 9 and a high beam filament 10 extending in the optical axis O direction, and the light source valve 5 rotates about the optical axis O. A reflector 6 formed by providing a plurality of reflection segments to be described later on a parabolic surface is attached so as to be coaxial with the optical axis O, and the reflector 6 is provided by a reflection segment to be described later provided on the reflection surface 6a. The light of the light source valve 5 is reflected forward. The outer shade 7 is composed of a cap 7a that covers the front end portion of the light source bulb 5 and a mounting portion 7b that is attached to the reflector 6 so as to shield the light directly emitted forward from the low beam filament 8. The peripheral area of the lamp unit 4 in the lamp chamber S is shielded by the extension reflector 11 so as not to be seen from the front.

FIG. 2A shows the light source bulb 5 of FIG. The light source bulb 5 includes a base 5a, a tubular glass ball 5b fixed to the base, a terminal 5c, a metal lead wire 5d electrically connected to the terminal 5c via the base 5a, a low beam filament 8, and a light-shielding member. It has an inner shade 9 and a filament 10 for a high beam. The low beam filament 8, the inner shade 9, and the high beam filament 10 are each held by the base 5a via the lead wire 5d inside the tubular glass sphere 5b in which gas is sealed and sealed.

In this embodiment, a two-lamp type vehicle headlight that emits both low beam light and high beam light by switching the light emitting filaments (8, 10) is shown, but the vehicle headlight dedicated to the high beam is shown. By separately preparing a light or a lighting unit dedicated to the high beam, the headlight for a vehicle for a four-lamp type low beam in which the filament 10 for the high beam is omitted may be used. Further, in the present embodiment, a light source that emits light from a semiconductor light emitting element such as an LED may be used instead of the light source valve 5 that emits light from the filament.

The low beam filament 8 is arranged so as to be coaxial with the optical axis O, the inner shade 9 is arranged below the low beam filament 8, and the high beam filament 10 is arranged behind the low beam filament 8 of the optical axis O. It is placed in the vicinity. At the tip of the tubular glass sphere 5b, a shielding film 5e that shields the light directly emitted forward from the low beam and high beam filaments (8, 10) is provided.

As shown in FIGS. 2 (b) and 2 (c), the inner shade 9 has a bottomed cup shape that opens upward when viewed from the front. At the rear end of the inner shade 9, a light-shielding portion 9a formed in a curved shape that is convex rearward when viewed from above is provided. At the upper end of the light-shielding portion 9a shown in FIG. And, a right descending cut-off line forming end 9d formed so as to incline diagonally downward to the right from the top portion 9b is provided.

The left descending cut-offline forming end 9c and the right descending cut-offline forming end 9d in FIG. 2C are inclined downward by 15 ° with respect to the axis line O1 extending in the direction orthogonal to the optical axis O and in the horizontal direction, respectively. It is formed. The angle of inclination from the horizontal direction with respect to the left and right descending cut offline forming ends (9c, 9d) of the inner shade 9 is not limited to 15 ° as long as the shape is inclined diagonally downward to the left and diagonally downward to the right from the top 9b. ..

The inner shade 9 of FIG. 2C shows the light radiated from the low beam filament 8 toward the reflector 6 below the left-down cut-offline forming end 9c or below the right-down cut-offline forming end 9d. The reflector 6 is irradiated with the cut-off line light S1 by blocking the light to be directed. The cut-off line light S1 has a left-down cut-off line 12 that inclines approximately 15 ° diagonally downward to the left from the horizontal direction so as to follow the left-down cut-off line formation end 9c, and a horizontal cut-off line light S1 that follows the right-down cut-off line formation end 9d. The reflector 6 is irradiated so as to have a right descending cut-off line 13 tilted diagonally downward to the right by approximately 15 °.

The reflector 6 shown in FIGS. 1 and 3 has a reflecting surface 6a composed of a plurality of reflecting segments, and reflects light incident on the reflecting surface 6a from the light source bulb 5 forward so as to reverse the vertical and horizontal directions. The reflection surface 6a in FIG. 3 is more than the line connected by the low beam reflection segment group 14 located above the line connected by the points P1-P2-P3-P4 and the line connected by the points P1-P2-P3-P4. It is formed by a high beam dedicated reflection segment group 15 composed of a high beam reflection segment 15a located below.

The light of the low beam filament 8 is incident only on the low beam reflection segment group 14 to form the low beam light distribution pattern Lp of FIG. 4, which will be described later, and the light of the high beam filament 10 is the low beam reflection segment group 14 and the high beam. A high beam light distribution pattern (not shown) is formed by incident on the entire reflection surface 6a including the dedicated reflection segment group 15.

As shown in FIG. 3, the low beam reflection segment group 14 includes a plurality of first cut-offline forming segments provided in a region surrounded by points P1-P2-P5-P6 from the outer circumference to the inner circumference on the left side of the reflection surface 6a. 16 and a plurality of second cut-off line forming segments 17 provided in the region surrounded by the reflector points P3-P4-P7-P8 from the outer circumference to the inner circumference on the right side of the reflecting surface, and P6-P5-P8-P7. It is formed by a plurality of general-purpose segments 18 provided in a region above the connecting line.

As shown in FIG. 3, at the lower end of the plurality of first cut-off line forming segments 16, continuous left cut-off line forming ends 19 are formed on the line connecting the points P1-P2, and the plurality of second cut-off line forming segments 17 are formed. A continuous right cut-off line forming end 20 is formed on a line connecting points P3-P4 at the lower end portion of the above.

The left cut-off line forming end 19 in FIG. 3 has a left-down cut-off line forming end 9c with respect to an axis line O1 extending in a direction orthogonal to the optical axis O and horizontally so as to follow the left-down cut-off line forming end 9c of the inner shade 9. It is formed so as to incline diagonally downward at a maximum of approximately + 5 ° to the left (that is, to incline at a maximum of 15 ° + approximately 5 ° at a maximum), and the right cut offline forming end 20 is a right downward cut of the inner shade 9. A cut that descends to the right with respect to the axis line O1 that extends in the direction orthogonal to the optical axis O and horizontally so as to follow the offline formation end 9d. (Ie, tilted at 15 ° + up to approximately 5 °).

The descending cut-off line (12, 13) formed in the cut-off line light S1 shown in FIG. 2 and inclined diagonally downward to the left and right by approximately 15 ° is reflected along the left and right cut-off line forming ends (19, 20) of the reflector 6. It is incident on the low beam reflection segment group 14 on the surface 6a. Here, the left and right cut-off line forming ends (19, 20) of the reflector 6 are tilted downward by + about 5 ° at the maximum from the left and right descending cut-off line forming ends (9c, 9d) of the inner shade 9. Since the margin is formed, the cut-off line light S1 protrudes to the high beam dedicated reflection segment group 15 side even if the descending cut-off line (12, 13) is formed diagonally downward by a slight angle larger than 15 °. There is no such thing, and it is perfectly incident on the low beam reflection segment group 14. The maximum value of the margin is not limited to 5 ° as long as it is slightly tilted downward from the left and right descending cut offline forming edges of the inner shade 9.

As shown in FIG. 1, the light S1 emitted from the low beam filament 8 of the light source bulb 5 is reflected forward by the reflecting surface 6a of the reflector 6, and as shown in FIG. 4, the reflected light S2 is the vehicle of FIG. 5 described later. The low beam light distribution pattern Lp is displayed on the road surface or the like in front of the 24. In this embodiment, as shown in FIG. 5, it is assumed that the vehicle 24 is used in a country traveling on the left side.

Specifically, among the reflected light S2, the light S21 reflected by the first cut-off line forming segment 16 in the lower left region of the low beam reflection segment group 14 of the reflector 6 shown in FIGS. 3 and 4 is obliquely upward to the right. The light S22 reflected by the left general-purpose segment 18a arranged on the left half of the reflection surface 6a among the plurality of general-purpose segments 18 above the light distribution region Lp1 is reflected diagonally downward to the right. The light distribution area Lp2 is displayed so that it is inverted and reflected so that a part of the light distribution area Lp1 overlaps with the light distribution area Lp1. Further, of the reflected light S2, the light S23 reflected by the second cut-off line forming segment 17 in the lower right region of the low beam reflection segment group 14 is inverted and reflected diagonally upward to the left to display the light distribution region Lp3. Of the plurality of general-purpose segments 18 above the plurality of general-purpose segments 18, the light S24 reflected by the right general-purpose segment 18b arranged on the right half of the reflection surface 6a is reflected back diagonally downward to the right and partly below the light distribution region Lp3. The light distribution area Lp4 is displayed so as to overlap with each other. The low beam light distribution pattern Lp is displayed by synthesizing the light distribution regions Lp1 to Lp4.

Here, the light distribution region Lp3 formed by the second cut-off line forming segment 17 shown in FIGS. 3 and 4 widely illuminates the Ln1 side of the own lane shown in FIG. The left diagonal cut offline 21 is displayed, which is cut diagonally upward to the left above the predetermined horizontal line HH (the line indicating the position of the line of sight of the oncoming vehicle driver) by the right cut offline forming end 20 of 6. However, the light distribution region Lp1 formed by the first cut-off line forming segment 16 must not irradiate the oncoming lane Ln2 side shown in FIG. 5 with glare light that dazzles the oncoming vehicle driver, so that the light distribution region Lp1 is symmetrical with the light distribution region Lp3. The diagonal right diagonal cut-off line (the part of reference numeral 23 indicated by the alternate long and short dash line) that cuts above the horizontal line HH shall not be displayed.

Therefore, in the first cut-off line forming segment 16 of the reflector 6 shown in FIGS. 3 and 4, the light from the reflected light S21 is reflected below the horizontal line HH, and the light distribution region Lp1 is formed by the left cut-off line forming end 19. The cut-off line displayed in is formed so as to display the horizontal cut-off line 22 parallel to the horizon line HH in the vicinity of the horizon line HH.

As a result, according to the vehicle headlight 1 of the present embodiment, when the reflector having the first cut-off line forming segment of the conventional shape is adopted by the first cut-off line forming segment 16, it is more than the horizontal line HH. Since the luminous flux reflected so as to display the right diagonal cut offline 23 above is convergently reflected just below the horizontal line HH, the horizontal cut offline 22 that does not dazzle the driver of the oncoming vehicle is more converged by the converged luminous flux. It can be displayed clearly.

In the vehicle 24 shown in FIG. 5, the low beam light distribution pattern Lp is displayed on the road surface in front of the vehicle by the vehicle headlight 1 of the present embodiment shown in FIG. The two-dot chain line in FIG. 5 shows the light distribution pattern Lpp displayed when a reflector having a first cut-off line forming segment having a conventional shape is adopted. The light distribution pattern Lpp displayed when the conventional reflector is used is in the vicinity of the horizontal cut-off line 23 because the reflected light is diffused above the horizontal line HH shown in FIG. 4 on the oncoming lane Ln2 side. The luminous flux is weakened and the light is emitted only to a position close to the vehicle 24. However, the light distribution pattern Lp by the vehicle headlight 1 of the present embodiment converges the light reflected on the oncoming lane Ln2 side immediately below the vicinity of the horizontal line HH without diffusing it above the horizontal line HH. Since the horizontal cut-off line 22 is displayed clearly, it is excellent in that it is irradiated farther on the Ln2 side of the oncoming lane than before without dazzling the driver of the oncoming vehicle (not shown).

In this embodiment, as shown in FIG. 5, since the vehicle 24 is assumed to be a vehicle headlight used in a country traveling on the left side, the first cut is made in forming the low beam light distribution pattern Lp1. The offline formation segment 16 is configured to display the horizontal cut offline 22 on the oncoming lane side which is the right lane, and the second cut offline formation segment 17 is configured to form the left diagonal cut offline 21 on the own lane side which is the left lane. However, in a country where the vehicle is on the right side, the horizontal cutoff line on the oncoming lane side where the first cut-off line forming segment 16 is the left lane is displayed, and the second cut-off line forming segment 17 is the own lane side where the right lane is used. It may be configured to form a right diagonal cut offline that cuts diagonally upward to the right.

As shown in FIG. 3, on the reflecting surface of the reflector 6, a general-purpose segment 18 that superimposes and reflects the reflected light on the inside of the light distribution region Lp1 formed by the first cut-off line forming segment 16 is formed on the reflecting surface 6a, for example. A supplementary light region 25 surrounded by points P5-P6-P9-P10 arranged from the outer circumference to the inner circumference on the left side may be provided. In that case, in the low beam light distribution pattern Lp shown in FIGS. 4 and 5, the luminous flux in the vicinity of the horizontal cut-off line 22 displayed on the oncoming lane Ln2 side increases to display a clearer horizontal cut-off line, and the oncoming lane Ln2 is displayed. The low beam light distribution pattern Lp can be displayed far away. The supplementary light region 25 may be provided in any of the general-purpose segments 18.

1 Vehicle headlight 5 Light source bulb (light source)
6 Reflector 6a Reflective surface 9 Inner shade (light-shielding member)
12 Left-down cut offline 13 Right-down cut offline 16 1st cut offline formation segment 17 2nd cut offline formation segment 18 General-purpose segment 19 Left cut offline formation end 20 Right cut offline formation end 22 Horizontal cut offline 25 Supplementary light area Ln1 Own lane Ln2 Oncoming lane Lp Low beam light distribution pattern O Optical axis O1 Axis line extending in the direction orthogonal to the optical axis and in the horizontal direction S1 Cut-off line light

Claims (6)

Forming cut-off line light with left-down cut-off line and right-down cut-off line that incline diagonally downward to the left and diagonally downward to the right from the vicinity of the optical axis in the direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and in the horizontal direction, respectively. Right that has a shape that follows the left-down cut-off line and forms a left-cut offline formation end that forms an oncoming lane-side cut-off line, and a shape that follows the right-down cut-off line and forms the own lane-side cut-off line. In a vehicle headlight having a reflector that reverse-reflects the cut-off line light forward by a reflecting surface having a cut-off line forming end.
The reflector reflects the cut-offline light so that the oncoming lane-side cut-off line formed corresponding to the left-down cut-off line is a horizontal cut-off line.
The left cut-offline forming end of the reflector forming the horizontal cut-off line is for vehicles characterized in that the left cut-off line forming end is tilted downward in a range of up to approximately + 5 ° below the corresponding left-down cut-off line of the cut-off line light. Headlight. Forming cut-off line light with left-down cut-off line and right-down cut-off line that incline diagonally downward to the left and diagonally downward to the right from the vicinity of the optical axis in the direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and in the horizontal direction, respectively. It has a light source that follows the left-down cut-off line, a left-cut offline formation end that forms the cut-off line on the own lane side, and a shape that follows the right-down cut-off line, and forms the oncoming lane-side cut-off line. In a vehicle headlight having a reflector that reverse-reflects the cut-off line light forward by a reflecting surface having a cut-off line forming end.
The reflector reflects the cut-off line light so that the oncoming lane side cut-off line formed corresponding to the right-down cut-off line is a horizontal cut line.
The right cut-offline forming end of the reflector forming the horizontal cut-off line is for vehicles characterized in that it is formed at an angle of up to approximately + 5 ° downward from the corresponding right-down cut-off line of the cut-off line light. Headlight. Claim 1 or 2 is characterized by having a light-shielding member that covers the area orthogonal to the optical axis extending in the front-rear direction of the vehicle and the horizontal direction from the vicinity of the optical axis to the lower left and lower right. Headlights for vehicles as described in. The reflective surface of the reflector is composed of a plurality of reflective segments that reflect cut-off line light.
The plurality of reflection segments are
A first cut offline formation segment with a left cut offline formation end,
A second cut offline formation segment with a right cut offline formation end,
Has a general purpose segment with no cut-off line forming edge,
Claim 1 or 2, wherein one of the first and second cut-off line forming segments forming the oncoming lane side cut-off line is formed so as to reflect light in a state where the cut-off line is horizontal. Vehicle headlights listed in. Forming cut-off line light with left-down cut-off line and right-down cut-off line that incline diagonally downward to the left and diagonally downward to the right from the vicinity of the optical axis in the direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and in the horizontal direction, respectively. Right that has a shape that follows the left-down cut-off line and forms a left-cut offline formation end that forms an oncoming lane-side cut-off line, and a shape that follows the right-down cut-off line and forms the own lane-side cut-off line. In a vehicle headlight having a reflector that reverse-reflects the cut-off line light forward by a reflecting surface having a cut-off line forming end.
The reflector reflects the cut-offline light so that the oncoming lane-side cut-off line formed corresponding to the left-down cut-off line is a horizontal cut-off line.
The reflective surface of the reflector is composed of a plurality of reflective segments that reflect cut-off line light.
The plurality of reflection segments are
A first cut offline formation segment with a left cut offline formation end,
A second cut offline formation segment with a right cut offline formation end,
General-purpose segment without cut-off line forming edge
Have,
A vehicle headlight characterized in that the general-purpose segment has a supplementary light region that reflects light in the vicinity of the oncoming lane side cut line . Forming cut-off line light with left-down cut-off line and right-down cut-off line that incline diagonally downward to the left and diagonally downward to the right from the vicinity of the optical axis in the direction orthogonal to the optical axis extending in the front-rear direction of the vehicle and in the horizontal direction, respectively. It has a light source that follows the left-down cut-off line, a left-cut offline formation end that forms the cut-off line on the own lane side, and a shape that follows the right-down cut-off line, and forms the oncoming lane-side cut-off line. In a vehicle headlight having a reflector that reverse-reflects the cut-off line light forward by a reflecting surface having a cut-off line forming end.
The reflector reflects the cut-off line light so that the oncoming lane side cut-off line formed corresponding to the right-down cut-off line is a horizontal cut line.
The reflective surface of the reflector is composed of a plurality of reflective segments that reflect cut-off line light.
The plurality of reflection segments are
A first cut offline formation segment with a left cut offline formation end,
A second cut offline formation segment with a right cut offline formation end,
General-purpose segment without cut-off line forming edge
Have,
A vehicle headlight characterized in that the general-purpose segment has a supplementary light region that reflects light in the vicinity of the oncoming lane side cut line .

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