CN102537810B

CN102537810B - Motorcycle-use projector headlight

Info

Publication number: CN102537810B
Application number: CN201110442267.2A
Authority: CN
Inventors: 八田贞治; 椿井浩之; 酒井悟
Original assignee: Stanley Electric Co Ltd
Current assignee: Stanley Electric Co Ltd
Priority date: 2010-12-28
Filing date: 2011-12-26
Publication date: 2016-03-02
Anticipated expiration: 2031-12-26
Also published as: CN102537810A

Abstract

The invention provides a kind of motorcycle-use projector headlight, it comprises projecting lens, light source, the 1st reflecting surface and additional light distribution patterns forming portion.Projecting lens has projecting lens portion.1st reflecting surface for make the light launched from described light source converge to described projecting lens optical axis near and transmitted through described projecting lens portion, and form predetermined light distribution patterns transmitted through the light in described projecting lens portion.Additional light distribution patterns forming portion comprises lens cut-off portion and the 2nd reflecting surface, lens cut-off portion is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side or refraction for the reverberation from described 2nd reflecting surface making to incide described lens cut-off portion to vehicle front, forms the additional light distribution patterns in left side and right side adds light distribution patterns.The present invention does not need additional two steering indicating lights, just can form when rotated the motorcycle-use projector headlight that (when such as turning to) irradiates the road surface of direction of rotation at low cost.

Description

Motorcycle-use projector headlight

Technical field

The relevant motorcycle-use projector headlight of the present invention, particularly about when rotated, (when such as turning to) can be irradiated to the motorcycle-use projector headlight on the road surface of direction of rotation.

Background technology

In the past, in the field of such as motorcycle-use headlamp, propose when rotated the motorcycle-use projector headlight (such as with reference to patent document 1) that (when such as turning to) can irradiate the road surface of direction of rotation.

As shown in figure 22, the motorcycle-use projector headlight 200 that patent document 1 is recorded has: passing beam lamp 210 and be configured in the steering indicating light 220 of the left and right sides of this passing beam lamp 210 respectively.

Passing beam lamp 210 is the headlamp that can form passing beam light distribution patterns P1 (with reference to Figure 23 (a)), and as shown in figure 22, the same with general motorcycle-use projector headlight, this passing beam lamp 210 has projecting lens 211, light source 212, reflecting surface 213 and shading piece 214 etc.

According to this passing beam lamp 210, launch from light source 212 and blocked by shading piece 214 in a part for the light of reflecting surface 213 reflection, its picture is projected by projecting lens 211, thus forms passing beam light distribution patterns P1 (with reference to Figure 23 (a)).

Steering indicating light 220 is the headlamp that can switch the additional light distribution patterns P3 shown in the additional light distribution patterns P2 and Figure 23 (b) shown in Figure 23 (a), and as shown in Figure 24 (a), Figure 24 (b), the same with general projector headlight, steering indicating light 220 has projecting lens 221, light source 222 and reflecting surface 223, but shading piece 224 is different from general motorcycle-use projector headlight.

Namely, the shading piece 224 of steering indicating light 220 is except the fixing shading piece 224a used in general motorcycle-use projector headlight, also comprise movable light shield part 224b, this movable light shield part 224b is positioned at the retreating position shown in the shading position shown in Figure 24 (b) or Figure 24 (a) in response to the on/off of the console switch of direction indicator.

According to this steering indicating light 220, when the console switch of direction indicator disconnects, launch from light source 222 and blocked by the movable light shield part 224b of the shading position being positioned at Figure 24 (b) in a part for the light of reflecting surface 223 reflection, its picture is projected by projecting lens 221, forms the additional light distribution patterns P2 shown in Figure 23 (a).On the other hand, when the console switch of direction indicator is connected, movable light shield part 224b moves to the retreating position of Figure 24 (a), thus launch from light source 222 and block by fixing shading piece 224a in a part for the light of reflecting surface 223 reflection, its picture is projected by projecting lens 221, forms the additional light distribution patterns P3 shown in Figure 23 (b).Thus, (when such as turning to) road surface of direction of rotation can be irradiated when rotated.

[patent document 1] Japanese Unexamined Patent Publication 2008-1306 publication

But, in the motorcycle-use projector headlight 200 of said structure, although (when such as turning to) can irradiate the road surface of direction of rotation when rotated, but this motorcycle-use projector headlight 200 also adds two steering indicating lights 220 except passing beam with except lamp 210, thus there is the problem of the corresponding increase of cost.

Summary of the invention

The technical problem to be solved in the present invention is to provide one and compared with prior art forms at low cost and (when such as turning to) can irradiate the motorcycle-use projector headlight on the road surface of direction of rotation when rotated.

A kind of motorcycle-use projector headlight that the present invention the 1st aspect provides, comprising:

Projecting lens, described projecting lens comprises projecting lens portion and lens cut-off portion;

Light source, described light source comprises at least two filaments;

1st reflecting surface, described 1st reflecting surface for make near the optical axis that the light of at least one filament emission described at least two filaments converges to described projecting lens and transmitted through described projecting lens portion, and forms predetermined light distribution patterns transmitted through the light in described projecting lens portion;

2nd reflecting surface, described 2nd reflecting surface is assembled to described lens cut-off portion from the light of at least one filament emission described at least two filaments for making; And

Circuit, described circuit is used at least two described filaments are energized respectively,

Described lens cut-off portion comprises lens face, described lens face is totally reflected for making the reverberation from described 2nd reflecting surface inciding described lens cut-off portion to the left side being positioned at vehicle body longitudinal median plane of vehicle front and the region on right side or reflects, and on the left of being formed, additional light distribution patterns and right side add light distribution patterns.

According to the invention that the 1st aspect is recorded, only need add lens cut-off portion and the 2nd reflecting surface that can make to assemble to lens cut-off portion from the light of at least one filament emission at least two filaments to the existing optical unit that can form passing beam use or driving beam light distribution patterns, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.That is, according to the invention that the 1st aspect is recorded, do not need steering indicating light, thus compared with prior art can form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

A kind of motorcycle-use projector headlight that the present invention the 2nd aspect provides, comprising:

Projecting lens;

Light source, described light source comprises at least two filaments;

1st reflecting surface, described 1st reflecting surface is for make near the optical axis that the light of at least one filament emission described at least two filaments converges to described projecting lens and transmitted through described projecting lens, the light transmitted through described projecting lens forms predetermined light distribution patterns;

2nd reflecting surface, described 2nd reflecting surface is assembled to the lens component of the non-transmission of reverberation from described 1st reflecting surface in described projecting lens from the light of at least one filament emission described at least two filaments for making;

3rd reflecting surface, described 3rd reflecting surface is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side for making the reverberation from described 2nd reflecting surface transmitted through described lens component to vehicle front, forms the additional light distribution patterns in left side and right side adds light distribution patterns; And

Circuit, described circuit is used at least two described filaments are energized respectively.

According to the invention that the 2nd aspect is recorded, (lens component is a part for projecting lens only need to add lens component to the existing optical unit that can form passing beam use or driving beam light distribution patterns, also can add separately), the 2nd reflecting surface and the 3rd reflecting surface, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.That is, according to the invention that the 2nd aspect is recorded, do not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

A kind of motorcycle-use projector headlight that the present invention the 3rd aspect provides, comprise projecting lens, light source and the 1st reflecting surface, described projecting lens has projecting lens portion, described 1st reflecting surface for make the light launched from described light source converge to described projecting lens optical axis near and transmitted through described projecting lens portion, and form predetermined light distribution patterns transmitted through the light in described projecting lens portion; Described motorcycle-use projector headlight also comprises additional light distribution patterns forming portion, and described additional light distribution patterns forming portion adds light distribution patterns for the formation of left side and/or right side adds light distribution patterns.

According to the invention that the 3rd aspect is recorded, only need to existing can be formed passing beam with or the optical unit of driving beam light distribution patterns add additional light distribution patterns forming portion, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.Namely, according to the invention that the 3rd aspect is recorded, on the left of additional light distribution patterns forming portion can be formed, additional light distribution patterns and right side add in the scheme of light distribution patterns, do not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

In addition, according to the invention that the 3rd aspect is recorded, on the left of additional light distribution patterns forming portion can be formed, additional light distribution patterns and right side add in the scheme of one of light distribution patterns, need a steering indicating light to configure the additional light distribution patterns of opposite side again, also the motorcycle-use projector headlight that (when such as turning to) irradiates the road surface of direction of rotation can be formed when rotated, with need compared with two steering indicating lights in prior art, still can reduce costs to a certain extent, and also provide a kind of selection configuring motorcycle-use projector headlight.

In in the 3rd, additional light distribution patterns forming portion can be embodied as the specific embodiment enumerated following 4th to the 7th aspect, but the present invention is not limited to the structure that these are enumerated.

A kind of motorcycle-use projector headlight that the present invention the 4th aspect provides, additional light distribution patterns forming portion specifically comprises:

Lens cut-off portion, described lens cut-off portion is located at described projecting lens; And

2nd reflecting surface, described 2nd reflecting surface is assembled to described lens cut-off portion for making the light launched from described light source;

Described lens cut-off portion is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side or refraction for the reverberation from described 2nd reflecting surface making to incide described lens cut-off portion to vehicle front, forms described left side and adds light distribution patterns and described right side adds light distribution patterns.

According to the invention that the 4th aspect is recorded, only need to existing can be formed passing beam with or the optical unit of driving beam light distribution patterns the 2nd reflecting surface that specifically adds lens cut-off portion and the light launched from light source can be made to assemble to lens cut-off portion, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.That is, according to the invention that the 4th aspect is recorded, do not need steering indicating light, just compared with prior art can form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

A kind of motorcycle-use projector headlight that the present invention the 5th aspect provides, described additional light distribution patterns forming portion specifically comprises:

2nd reflecting surface, described 2nd reflecting surface understands coalescence transmitted through described lens component for making the light launched from described light source to the lens component of the non-transmission of reverberation from described 1st reflecting surface of described projecting lens; And

3rd reflecting surface, described 3rd reflecting surface is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side for making the reverberation from described 2nd reflecting surface transmitted through described lens component to vehicle front, forms described left side and adds light distribution patterns and described right side adds light distribution patterns.

According to the invention that the 5th aspect is recorded, (lens component is a part for projecting lens only need specifically to add lens component to the existing optical unit that can form passing beam use or driving beam light distribution patterns, also can add separately), the 2nd reflecting surface and the 3rd reflecting surface, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.That is, according to the invention that the 5th aspect is recorded, do not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

A kind of motorcycle-use projector headlight that the present invention the 6th aspect provides, described additional light distribution patterns forming portion specifically comprises:

Lens cut-off portion, described lens cut-off portion is located at described projecting lens;

2nd reflecting surface, described 2nd reflecting surface is assembled to described lens cut-off portion for making the light launched from described light source; And

3rd reflecting surface, described 3rd reflecting surface is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side for making the reverberation from described 2nd reflecting surface transmitted through described lens cut-off portion to vehicle front,

Described lens cut-off portion is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side or refraction for the reverberation from described 2nd reflecting surface making to incide described lens cut-off portion to vehicle front,

From the reverberation of described 2nd reflecting surface by the reflection in described lens cut-off portion or refraction, and the reflection of described 3rd reflecting surface, jointly form described left side and add light distribution patterns and described right side adds light distribution patterns.

According to the invention that the 6th aspect is recorded, only specifically need add lens cut-off portion, the 2nd reflecting surface and the 3rd reflecting surface to the existing optical unit that can form passing beam use or driving beam light distribution patterns, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.That is, according to the invention that the 6th aspect is recorded, do not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

A kind of motorcycle-use projector headlight that the present invention the 7th aspect provides, described additional light distribution patterns forming portion specifically comprises:

2nd reflecting surface, described 2nd reflecting surface understands coalescence transmitted through described lens component for making the light launched from described light source to the lens component of the non-transmission of reverberation from described 1st reflecting surface of described projecting lens, and make the reverberation from described 2nd reflecting surface transmitted through described lens component be positioned at the left side of vehicle body longitudinal median plane and the area illumination on right side to vehicle front, form described left side and add light distribution patterns and described right side adds light distribution patterns.

According to the invention that the 7th aspect is recorded, only specifically need add the 2nd reflecting surface to the existing optical unit that can form passing beam use or driving beam light distribution patterns, just (when such as turning to) road surface of direction of rotation can be irradiated when rotated.That is, according to the invention that the 7th aspect is recorded, do not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) the motorcycle-use projector headlight on the road surface of direction of rotation can be irradiated when rotated.

The feature of a kind of motorcycle-use projector headlight that the present invention the 8th aspect provides is, in the invention recorded in the 4th or in the 6th, what described lens cut-off portion carried out the reverberation from described 2nd reflecting surface is reflected into total reflection.

According to the invention that the 8th aspect is recorded, the reflectivity of total reflection is 100%, thus compared with the situation of the reflecting surface (such as the reflecting surface of reflectivity 90%) used beyond fully reflecting surface, what can irradiate vehicle front more brightly is positioned at the left side of vehicle body longitudinal median plane and the region on right side, can form brighter left side and add light distribution patterns and right side adds light distribution patterns.

The feature of a kind of motorcycle-use projector headlight that the present invention the 9th aspect provides is, in the invention recorded in the 8th,

Described projecting lens portion and described lens cut-off portion are arranged in described projecting lens along the vertical direction, and this comprises two kinds of situations: the 1st kind of situation, and described projecting lens portion is located at the top of projecting lens, and lens cut-off portion is located at the bottom of projecting lens; Or projecting lens portion and lens cut-off portion are to change place, and namely projecting lens portion is located at the bottom of projecting lens, and lens cut-off portion is located at the top of projecting lens.

Described lens cut-off portion comprises the lens face being symmetrically formed at described projecting lens.

According to the record of the 9th aspect, provide the optional manner that projecting lens portion and described lens cut-off portion are set, be also conducive to being formed symmetrical left side and add light distribution patterns and right side adds light distribution patterns.

The feature of a kind of motorcycle-use projector headlight that the present invention the 10th aspect provides is, in the invention that either side is recorded in 1st ~ 7, described left side adds light distribution patterns and described right side adds the top that light distribution patterns is positioned at described predetermined light distribution patterns.

According to the record of the 10th aspect, provide that a kind of left side adds light distribution patterns, described right side adds optional configuration mode between light distribution patterns and predetermined light distribution patterns.

The feature of a kind of motorcycle-use projector headlight that the present invention the 11st aspect provides is, 1st ~ 2, in the invention that 4 ~ 7 aspect either sides are recorded, described motorcycle-use projector headlight also comprises in the first banded shading piece, described first shading piece is configured between described projecting lens and described light source along overall width direction, described first shading piece forms dead line for blocking from a part for the reverberation of described 1st reflecting surface and the part of light that sends from described light source, described first shading piece does not block the reverberation from described 2nd reflecting surface.

According to the invention that the 11st aspect is recorded, the effect in the first banded shading piece be configured between projecting lens and light source can be utilized, block from a part for the reverberation of described 1st reflecting surface and the part of light that sends from described light source, form bright dead line, and owing to can not be blocked from the reverberation of the 2nd reflecting surface, thus (when such as turning to) road surface of direction of rotation can be irradiated more brightly when rotated.

The feature of a kind of motorcycle-use projector headlight that the present invention the 12nd aspect provides is, in the invention that either side is recorded in the 2nd, 5 ~ 6, on the decorative element that described 3rd reflecting surface is formed in the surrounding being configured at described projecting lens and extension.

According to the invention that the 12nd aspect is recorded, owing to not using separately independently the 3rd reflecting surface, and use a part for decorative element and extension as the 3rd reflecting surface, thus correspondingly can realize the further reduction of cost.

The feature of a kind of motorcycle-use projector headlight that the present invention the 13rd aspect provides is, in the invention that either side is recorded in 3rd ~ 7, described light source comprises at least two filaments, and described motorcycle-use projector headlight also comprises can make at least two described filaments alive circuit respectively.

According to the invention that the 13rd aspect is recorded, provide optional configuration mode and the control mode of light source, be conducive to the life-span extending each filament, be also conducive to the luminosity meeting standard-required.

The feature of a kind of motorcycle-use projector headlight that the present invention the 14th aspect provides is, in the invention recorded in the 1st, 2 or 13, described circuit, by least one filament energising at least two filaments described in only making, makes utilization meet the luminosity of standard-required from the described predetermined light distribution patterns that the light of at least one filament described is formed; Or described circuit is by each filament energising at least two filaments described in making, utilization is made to meet the luminosity of standard-required from the described predetermined light distribution patterns that the light of described each filament is formed.

According to the invention that the 14th aspect is recorded, by only a certain filament electrified light emitting, form the predetermined light distribution patterns (such as, passing beam light distribution patterns) met by the luminosity of standard-required.By only making a certain filament electrified light emitting, compared with making the situation of whole filament simultaneously electrified light emitting, the life-span of each filament can be extended.

By making each filament electrified light emitting, the light distribution patterns overlap that can form the light distribution patterns that utilizes the light of some filaments to be formed and utilize the light from another filament to be formed and obtain brighter predetermined light distribution patterns (such as, passing beam light distribution patterns).The light distribution patterns formed due to the light utilized from a filament and the light distribution patterns overlap utilizing the light from another filament to be formed, even if thus reduce the current value making two filaments be energized separately and make it have dark brightness, also can be formed and the predetermined light distribution patterns utilizing the predetermined light distribution patterns equivalent brightness formed from the light of an independent filament.Like this, by reducing the current value making each filament be energized separately, the life-span of each filament can be extended.

The feature of a kind of motorcycle-use projector headlight that the present invention the 15th aspect provides is, in the invention recorded in the 14th, described at least two filaments are arranged in order along the optical axis direction of described projecting lens, described motorcycle-use projector headlight also comprises the second shading piece, described second shading piece is configured in the below of the filament of the side, forefront at least two described filaments, for blocking light from the filament of side, forefront to form dead line.

According to the invention that the 15th aspect is recorded, the effect of the second shading piece can be utilized to block the light of the filament from side, forefront, form bright dead line, (when such as turning to) road surface of direction of rotation can be irradiated more brightly when rotated.

Accompanying drawing explanation

Fig. 1 is the front view of the motor bike of the motorcycle-use projector headlight 10 having carried embodiments of the present invention.

Fig. 2 is the stereogram of motorcycle-use projector headlight 10.

Fig. 3 is the cross-sectional view of motorcycle-use projector headlight 10.

Fig. 4 is the longitudinal section of motorcycle-use projector headlight 10.

Fig. 5 (a) is the left and right (such as 0 ~ 45 °) of plumb line V on the vertical screen of imagination just right with body structure time upright and the region A of horizontal top (such as 0 ~ 30 °) _r, A _l, at this region A _r, A _linterior formation adds light distribution patterns P2 _l, P2 _r, the passing beam example of light distribution patterns P1, Fig. 5 (b) is formed to add light distribution patterns P2 on the vertical screen of imagination just right with body structure when tilting _l, P2 _r, the passing beam example of light distribution patterns P1.

The example 2 of Fig. 6 (a) to be the example 1, Fig. 6 (b) of fully reflecting surface 11b1 (lens cut-off) be fully reflecting surface 11b1 (lens cut-off).

Fig. 7 (a) is the left and right (such as 0 ~ 45 °) of plumb line V on the vertical screen of imagination just right with body structure time upright and the region A of horizontal top (such as 0 ~ 30 °) _r, A _l, at this region A _r, A _linterior formation adds light distribution patterns P2 _l, P2 _r, the passing beam example of light distribution patterns P1, Fig. 7 (b) is formed to add light distribution patterns P2 on the vertical screen of imagination just right with body structure when tilting _l, P2 _r, the passing beam example of light distribution patterns P1.

Fig. 8 is the cross-sectional view (omitting the first shading piece 15) of motorcycle-use projector headlight 10.

Fig. 9 is formed in the additional light distribution patterns P2 on the vertical screen of the imagination just right with body structure when tilting _lthe example of (road surface luminous intensity distribution).

Figure 10 is the stereogram of motorcycle-use projector headlight 10 (modified example).

Figure 11 is the longitudinal section of motorcycle-use projector headlight 10 (modified example).

Figure 12 is the cross-sectional view of motorcycle-use projector headlight 10 (modified example).

Figure 13 is the cross-sectional view of motorcycle-use projector headlight 10 (modified example).

Figure 14 (a) is the example of the lens cut-off portion 11c comprising plane of refraction 11c1 (lens cut-off), Figure 14 (b) is the example of the lens cut-off portion 11d of the lens face 11d1 comprised as fully reflecting surface and plane of refraction n-back test, and Figure 14 (c) is the example of zero diopter lens section 11e.

Figure 15 is the cross-sectional view of motorcycle-use projector headlight 10 (modified example).

Figure 16 is the front view of the motor bike having carried motorcycle-use projector headlight 10 (modified example).

Figure 17 is the front view of the motor bike having carried motorcycle-use projector headlight 10 (modified example).

Figure 18 is the example for carrying out the circuit of light on and off control to each filament 12a, 12b.

Figure 19 is the table of the relation illustrated between the ON/OFF state of each switch S 1, S2 and the light distribution patterns formed.

Figure 20 is the stereogram of the first shading piece 15.

Figure 21 is the longitudinal section of motorcycle-use projector headlight 10 (modified example).

Figure 22 is the top view of the structure for illustration of existing motorcycle-use projector headlight 200.

Figure 23 (a) is that Figure 23 (b) is the figure for illustration of additional light distribution patterns P2, the light beam light distribution patterns P1 (during inclination) that gives another the right of way for illustration of the additional light distribution patterns P2 formed by the motorcycle-use projector headlight shown in Figure 22, the figure that gives another the right of way light beam light distribution patterns P1 (during vehicle body orthostatism).

Figure 24 (a) is the longitudinal section of the steering indicating light 220 shown in Figure 22, and Figure 24 (b) is the stereogram of shading piece 224.

Label declaration

10: motorcycle-use projector headlight (passing beam optical unit); 11: projecting lens; 11a: projecting lens portion; 11b: lens cut-off portion; 11b1: fully reflecting surface; 11c: lens cut-off portion; 11c1: plane of refraction; 11d: lens cut-off portion; 11d1: lens face; 11e: zero diopter lens section; 12: light source; 12a, 12b: filament; 12c: the second shading piece; 13: the 1 reflectings surface; 14: the 2 reflectings surface; 14a, 14b: reflector space up and down; 14c, 14d: left and right reflector space; 15: the first shading pieces; 16: extension; 16a: wall; 17: the 3 reflectings surface; 18: outer lens; 20: driving beam optical unit.

Detailed description of the invention

The invention provides motorcycle-use projector headlight.The motor bike mentioned in the present invention can be two-wheeled motor vehicle, two-wheeled electric bicycle etc.

Embodiment 1

Hereinafter, with reference to the accompanying drawings of embodiments of the present invention and motorcycle-use projector headlight.

Motor bike in the present invention comprises vehicle body, arranges projector headlight 10 in the front portion of vehicle body.

The motorcycle-use projector headlight 10 (hereinafter referred to as headlamp 10) of present embodiment is such as the optical unit that can form passing beam light distribution patterns, and as shown in Figure 1, Figure 3, this headlamp 10 is configured in the front left of vehicle body.The optical unit 20 that can form driving beam light distribution patterns is configured with on the anterior right side of vehicle body.

Fig. 2 is the stereogram of headlamp 10, and Fig. 3 is cross-sectional view, and Fig. 4 is longitudinal section.

As shown in Figure 2 to 4, headlamp 10 has: the projecting lens 11 being configured in vehicle front side; Be configured in the light source 12 of rear view of vehicle side; Be configured in the 1st reflecting surface 13 of the top of light source 12; Be configured in the 2nd reflecting surface 14 of the below of light source 12; And the first shading piece 15 etc. be configured between projecting lens 11 and light source 12.

As shown in Figure 2, Figure 4 shows, projecting lens 11 is lens that the glass or transparent resin etc. comprising projecting lens portion 11a and lens cut-off portion 11b is made.Projecting lens portion 11a and lens cut-off portion 11b is arranged in projecting lens 11 along the vertical direction.Lens cut-off portion 11b is configured in from the not incident region (region that this reverberation Ray1 is not incident is in the present embodiment the lower area of projecting lens 11) of the reverberation Ray1 of the 1st reflecting surface 13, namely lens cut-off portion 11b is configured in the bottom of projecting lens 11, and projecting lens portion 11a is configured in the top of projecting lens 11.

See Fig. 4, projecting lens portion 11a is such as plano-convex non-spherical lens, and this plano-convex non-spherical lens comprises the convex surface being positioned at vehicle front side and the plane being positioned at rear view of vehicle side.Lens cut-off portion 11b is included in the lens face (11b1 ~ 11d1) projecting lens 11 being symmetrically formed at vehicle front side.In one embodiment, with reference to Fig. 1, the lens face forming lens cut-off portion 11b is fully reflecting surface 11b1 (lens cut-off).With reference to Fig. 5 (a), this fully reflecting surface 11b1 can perform the left side that be positioned at vehicle body longitudinal median plane of reverberation Ray2 to vehicle front from the 2nd reflecting surface 14 and the region A on right side that make to incide lens cut-off portion 11b _r, A _l, the region A of the left and right of the plumb line V (just to vehicle body longitudinal median plane) on the vertical screen of namely just right with body structure time upright imagination (be such as 0 ~ 45 ° angle relative to plumb line V) and the top of horizontal line H (be such as 0 ~ 30 ° angle relative to horizontal line H) _r, A _l, carry out the function being totally reflected (internal reflection), form the additional light distribution patterns P2 in left side _llight distribution patterns P2 is added with right side _r.

Fully reflecting surface 11b1 due to reflectivity be 100%, thus compared with the situation of the reflecting surface (such as the reflecting surface of reflectivity 90%) used beyond fully reflecting surface, can irradiation area A more brightly _r, A _l.Understandable, reflectivity also can adopt lower than the reflecting surface of 100%.

In a preferred embodiment, with reference to Fig. 6 (a), Fig. 6 (b), by arranging multiple fully reflecting surface 11b1 (lens cut-off), can irradiation area A more brightly _r, A _l.

As light source 12, can use such as halogen bulb, HID, incandescent lamp bulb, semiconductor light-emitting elements etc. arbitrarily can the element of emission of light.In one embodiment, as shown in Figure 4, use halogen bulb (such as HS1 type), this halogen bulb such as can comprise two filaments 12a, 12b, and two filaments 12a, 12b are carried out light on and off respectively and control; And the second shading piece 12c, the second shading piece 12c is configured in the below of the filament 12a of vehicle front side, for block launch from filament 12a and the light of top towards horizontal line H, form bright dead line.In an alternative embodiment, this halogen bulb also can comprise the filament of more than three or three.In addition, the halogen bulb of the such as S2 type beyond HS1 type can also be used.

In the present embodiment, the 1st reflecting surface 13 is configured in the top of light source 12, for supplying the light incidence (with reference to Fig. 4) of launching upward from light source 12 (filament 12a and/or filament 12b).

1st reflecting surface 13 is configured to: carry out transmission projection lens section 11a near the optical axis AX such as making the light Ray1 launched from light source 12 (filament 12a and/or filament 12b) converge to projecting lens 11, and makes the light Ray1 transmitted through projecting lens portion 11a on the vertical screen of the imagination just right with body structure portion, form passing beam light distribution patterns P1 (with reference to Fig. 5 (a)).Such as, for the 1st reflecting surface 13, its cross sectional shape comprising optical axis AX is set to generally elliptical shape, and its eccentricity is configured to increase gradually from vertical cross section to horizontal cross-section.

First shading piece 15 is the light-blocking members for blocking from the part light above horizontal line H in the reverberation Ray1 of the 1st reflecting surface 13, is configured in (with reference to Fig. 4) between projecting lens 11 and light source 12 under the state making its upper edge near the focal point F of the rear side of projecting lens portion 11a.

First shading piece 15 is the banded shading pieces extended substantially horizontally in overall width direction, is configured in the top of lens cut-off portion 11b.As the first shading piece 15, can the shading piece of example shape as shown in figure 20, the reverberation Ray2 from the 2nd reflecting surface 14 can be made to incide lens cut-off portion 11b and can not be blocked by the first shading piece 15.

As shown in Figure 4, the light Ray1 from light source 12 (filament 12a and/or filament 12b) inciding the 1st reflecting surface 13 utilizes the effect of the 1st reflecting surface 13 to be converged onto near the optical axis AX of projecting lens 11, and blocked towards the light of the top of horizontal line H by the first shading piece 15, its picture projects to vehicle front by projecting lens portion 11a.Thus, the vertical screen of the imagination just right with vehicle front end is formed the passing beam light distribution patterns P1 (with reference to Fig. 5 (a), Fig. 7 (a)) comprising the dead line CL specified by the upper edge of the first shading piece 15.

2nd reflecting surface 14 is configured in the below of light source 12, for supplying the light incidence (with reference to Fig. 4) of launching from light source 12 (filament 12a and/or filament 12b) downwards.

2nd reflecting surface 14 is configured to: the light Ray2 launched from light source 12 (filament 12a and/or filament 12b) is assembled to lens cut-off portion 11b.In the present embodiment, as shown in Fig. 2, Fig. 8, the 2nd reflecting surface 14 comprises four the reflector space 14a ~ 14d be configured in up and down.

Reflector space 14a, 14b of configuring up and down are configured to the light Ray2 that makes to launch from light source 12 (filament 12a and/or filament 12b) and are converged to relative to horizontal direction and are parallel to optical axis AX (with reference to Fig. 8) and relative vertical direction is converged to the reflecting surface of to tilt towards vehicle front side (with reference to Fig. 4).On the other hand, reflector space 14c, 14d of left and right configuration are configured to the light Ray2 that makes to launch from light source 12 (filament 12a and/or filament 12b) and are focused at (with reference to Fig. 8) near optical axis AX relative to horizontal direction and the reflecting surface being converged to tilt towards vehicle front side (with reference to Fig. 4) relative to vertical direction.

Certainly, the 2nd reflecting surface 14 also can comprise two reflector spaces, or six reflector spaces, anyly the 2nd reflecting surface 14 that the light Ray2 launched from light source 12 assembles to lens cut-off portion 11b all can be able to be adopted.

As shown in Figure 4, the light Ray2 from light source 12 (filament 12a and/or filament 12b) inciding the 2nd reflecting surface 14 utilizes the effect of the 2nd reflecting surface 14 to be converged, lens cut-off portion 11b is incided by the below of the first shading piece 15, the effect of fully reflecting surface 11b1 (lens cut-off) is utilized to be totally reflected, irradiation area A _r, A _l(with reference to Fig. 5 (a)).Thus, at region A _r, A _lthe interior additional light distribution patterns P2 in formation left side _llight distribution patterns P2 is added with right side _r(with reference to Fig. 5 (a), Fig. 7 (a)).

In the present embodiment, to be made up of with the 2nd reflecting surface 14 lens cut-off portion 11b and to become portion with addition of light distribution pattern.

Below, effect during body sway is described.

Such as, as shown in Fig. 5 (b), when left steering, vehicle body is towards (such as 36 °, inclination angle) during left side, and be accompanied by this, headlamp 10 also tilts.Thus, the region A of the top of horizontal line H has been irradiated before this _lleft side add light distribution patterns P2 _l(with reference to Fig. 5 (a), Fig. 7 (a)) moves to the below (with reference to Fig. 5 (b), Fig. 7 (b)) of horizontal line H, irradiates the road surface (with reference to Fig. 9) of the left front of cyclist.Because the left side of the below moving to this horizontal line H adds light distribution patterns P2 _lthe direction of visual lines of the cyclist when region, road surface irradiated is positioned at left steering, thus significantly can improve visibility during left steering, can realize comfortable turning to.

Equally, when when right turn, vehicle body tilts towards right side (such as 36 °, inclination angle), be accompanied by this, headlamp 10 also tilts.Thus, the region A of the top of horizontal line H has been irradiated before this _rright side add light distribution patterns P2 _r(with reference to Fig. 5 (a), Fig. 7 (a)) moves to the below of horizontal line H, irradiates the road surface of the right front of cyclist.Because the right side of the below moving to this horizontal line H adds light distribution patterns P2 _rthe direction of visual lines of the cyclist when region, road surface irradiated is positioned at right turn, thus significantly can improve visibility during right turn, can realize comfortable turning to.

Below, the light on and off control example of each filament 12a, 12b is described with reference to accompanying drawing.

As shown in figure 18, each filament 12a, 12b be connected with comprise for making this each filament be energized separately switch S 1, S2 circuit 19.

As shown in figure 19, such as, switch S 1 is disconnected, switch S 2 is made to connect (namely, the filament 12b of rear view of vehicle side is only made to be energized (current value I)), only make filament 12b bright light, thus the light from this filament 12b can be utilized to be formed meet and add light distribution patterns P2 by the passing beam light distribution patterns P1 of the luminosity of the standard-required of ECE etc. and left side _llight distribution patterns P2 is added with right side _r(with reference to Fig. 5 (a), Fig. 7 (a)).

And, switch S 1 is connected, and make switch S 2 disconnect (namely, the filament 12a of vehicle front side is only made to be energized (current value I)), only make filament 12a bright light, thus the light from this filament 12a can be utilized to form the passing beam light distribution patterns P1 met by the luminosity of the standard-required of ECE etc.

As previously discussed, by only making filament 12a or filament 12b be energized bright light, with make two filaments 12a, 12b be energized simultaneously (current value I) bright light situation compared with, the life-span of each filament 12a, 12b can be extended.

And, make switch S 1, (namely S2 connect, each filament 12a, 12b is made to be energized (current value I) separately), make each filament 12a, 12b bright light, thus the light distribution patterns utilizing and is formed from the light of filament 12a and the light distribution patterns overlap utilizing the light from filament 12b to be formed can be formed and obtain brighter passing beam light distribution patterns P1 and left side adds light distribution patterns P2 _llight distribution patterns P2 is added with right side _r.

And, the light distribution patterns formed due to the light utilized from filament 12a and the light distribution patterns overlap utilizing the light from filament 12b to be formed, make each filament 12a, 12b brightness dimmed even if thus reduce the current value (such as current value I/2) making each filament 12a, 12b be energized separately, passing beam light distribution patterns P1 and the left side that also can form the passing beam light distribution patterns P1 equivalent brightness formed with the light of filament 12a or 12b utilizing My World (current value I) add light distribution patterns P2 _llight distribution patterns P2 is added with right side _r.Like this, by reducing the current value making each filament 12a, 12b be energized separately, the life-span of each filament 12a, 12b can be extended.

As described above, headlamp 10 according to the present embodiment, only need add additional pattern forming portion to the existing optical unit that can form passing beam light distribution patterns, the 2nd reflecting surface 14 adding lens cut-off portion 11b particularly and the light launched by light source 12 (filament of at least one party in two filaments 12a, 12b) can be made to assemble to lens cut-off portion 11b, just (when such as turning to) can irradiate the road surface (with reference to Fig. 5 (b), Fig. 7 (b), Fig. 9) of direction of rotation when rotated.I.e. headlamp 10 according to the present embodiment, does not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) can irradiate the motorcycle-use projector headlight on the road surface of direction of rotation when rotated.

In an embodiment of present embodiment, by only making the one energising bright light in filament 12a, 12b, the predetermined light distribution patterns (such as, passing beam light distribution patterns P1) met by the luminosity of the standard-required of ECE etc. can be formed.Therefore, by only making the side in filament 12a, 12b or the opposing party be energized bright light, with make two sides in filament 12a, 12b be energized simultaneously bright light situation compared with, the life-span of each filament 12a, 12b can be extended.

In an embodiment of present embodiment, to be energized separately bright light by making two filaments 12a, 12b, the light distribution patterns that utilizes the light of the filament 12a of My World to be formed can be formed and utilize the light distribution patterns overlap that formed from the light of the filament 12b of the opposing party and obtain brighter predetermined light distribution patterns (such as, passing beam light distribution patterns P1).

In this embodiment, the light distribution patterns formed owing to utilizing the light of the filament 12a of My World and the light distribution patterns overlap utilizing the light from the filament 12b of the opposing party to be formed, even if thus reduce two filaments 12a, 12b are energized separately current value to make each filament 12a, 12b brightness dimmed, also can be formed and utilize the predetermined light distribution patterns that formed from the light of the side in filament 12a, 12b or the opposing party (such as, passing beam light distribution patterns P1) the predetermined light distribution patterns (such as, passing beam light distribution patterns P1) of equivalent brightness.Like this, by reducing the current value making each filament 12a, 12b be energized separately, the life-span of each filament 12a, 12b can be extended.

In an embodiment of present embodiment, the first shading piece 15 of the band shape of the top being configured in lens cut-off portion 11b can be utilized, make the reverberation Ray2 from the 2nd reflecting surface 14 incide lens cut-off portion 11b (with reference to Fig. 4) by the below of the first shading piece 15.That is, the reverberation Ray2 from the 2nd reflecting surface 14 owing to inciding lens cut-off portion 11b can not be blocked by the first shading piece 15, thus (when such as turning to) can irradiate the road surface of direction of rotation more brightly when rotated.

Embodiment 2

Embodiment 2 is variation of embodiment 1, and omission describes by same section.In embodiment 2, on the basis of embodiment 1, headlamp 10 also has the 3rd reflecting surface the 17,3rd reflecting surface 17 for making the reverberation from the 2nd reflecting surface 14 transmitted through lens cut-off portion 11b to region A _r, A _l(with reference to Fig. 5 (a)) reflection, in the present embodiment, to be made up of with the 3rd reflecting surface 17 lens cut-off portion 11b, the 2nd reflecting surface 14 and to become portion with addition of light distribution pattern.

As shown in Figure 10 ~ Figure 12, the 3rd reflecting surface 17 such as can be formed in the decorative element of the surrounding being configured at projecting lens 11 and a part for extension 16.

Figure 10, Figure 12 are the examples that the wall 16a extended towards vehicle fore-and-aft direction in the extension 16 after effects on surface implements the mirror process of aluminium-vapour deposition etc. forms the 3rd reflecting surface 17.In addition, be not limited to wall 16a, such as, as shown in figure 11, can immediately below the projecting lens 11 in extension 16 or its peripheral part form the 3rd reflecting surface 17.

According to embodiment 2, the light Ray1 from light source 12 (filament 12b and/or 12a) inciding the 1st reflecting surface 13 utilizes the effect of the 1st reflecting surface 13 to be converged onto near the optical axis AX of projecting lens 11, and blocked towards the light of the top of horizontal line H by the first shading piece 15, its picture projects to vehicle front by projecting lens portion 11a.Thus, the vertical screen of the imagination just right with vehicle front end is formed the passing beam light distribution patterns P1 (with reference to Fig. 5 (a), Fig. 7 (a)) comprising the dead line CL specified by the upper edge of the first shading piece 15.The light Ray2 from light source 12 (filament 12a and/or filament 12b) inciding the 2nd reflecting surface 14 utilizes the effect of the 2nd reflecting surface 14 to be converged, lens cut-off portion 11b is incided by the below of the first shading piece 15, the effect of fully reflecting surface 11b1 (lens cut-off) is utilized to be totally reflected, irradiation area A _r, A _l(with reference to Fig. 5 (a)).Thus, at region A _r, A _lthe interior additional light distribution patterns P2 in formation left side _llight distribution patterns P2 is added with right side _r(with reference to Fig. 5 (a), Fig. 7 (a)).Therefore, it is possible to (when such as turning to) irradiates the road surface of direction of rotation when rotated.

Further, according to embodiment 2, the effect of fully reflecting surface 11b1 (lens cut-off) is utilized to irradiate and the light covered by the wall 16a of extension 16 utilizes the effect being formed in the 3rd reflecting surface 17 on this wall 16a to be reflected (with reference to Figure 12), irradiation area A in direction to the right _l.Thus, compared with not forming the situation of the 3rd reflecting surface 17, can make to be formed in region A _linterior additional light distribution patterns P2 _lbrighter.That is, the light originally covered by the wall 16a of extension 16 can effectively be utilized.

Particularly, as shown in figure 13, the inclination angle of outer lens 18 diminishes, be accompanied by this, the wall 16a forming extension 16 is elongated at vehicle fore-and-aft direction, the light that direction is irradiated to the right when utilizing the effect of fully reflecting surface 11b1 (lens cut-off) is covered completely by this wall 16a, preferably form the 3rd reflecting surface 17 at this wall 16a.Like this, compared with not forming the situation of the 3rd reflecting surface 17, can make to be formed in region A _linterior left side adds light distribution patterns P2 _lbrighter.That is, the light originally covered completely by the wall 16a forming extension 16 can effectively be utilized.

Be appreciated that and can highlight right side add light distribution patterns P2 being formed with (in such as Figure 11 top decorative element) on the decorative element of wall 16a subtend of the direction vertical with optical axis _rthe 3rd reflecting surface 17.Notice that the 3rd reflecting surface 17 of relative both sides can not stop the light that the other side reflects back.

According to embodiment 2, from total reflection or the refraction of the reverberation Ray2 scioptics cut-off portion 11b of the 2nd reflecting surface 14, and the reflection of described 3rd reflecting surface 17, jointly form more bright left side and add light distribution patterns P2 _llight distribution patterns P2 is added with right side _r.

As described above, according to the headlamp 10 of embodiment 2, only need add lens component (lens cut-off portion 11b ~ 11e, lens face 11b1 ~ 11d1) for being totally reflected or reflecting, the 2nd reflecting surface 14 and the 3rd reflecting surface 17 to the existing optical unit being configured to be formed passing beam light distribution patterns, just (when such as turning to) road surface (reference Fig. 5 (b), Fig. 7 (b), Fig. 9) of direction of rotation can be irradiated when rotated.That is, headlamp 10 according to the present embodiment, does not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) can irradiate the motorcycle-use projector headlight on the road surface of direction of rotation when rotated.

According to the headlamp 10 of an embodiment of embodiment 2, owing to not using separately independently the 3rd reflecting surface 17, and use a part for extension 16 as the 3rd reflecting surface 17, thus correspondingly can realize the further reduction of cost.

According to the headlamp 10 of an embodiment of embodiment 2, to be energized bright light by only making the side in two filaments 12a, 12b or the opposing party, the predetermined light distribution patterns (such as, passing beam light distribution patterns P1) met by the luminosity of standard-required can be formed.And by only making the side in two filaments 12a, 12b or the opposing party be energized bright light, with make filament 12a, 12b of both sides be energized simultaneously bright light situation compared with, the life-span of each filament 12a, 12b can be extended.

According to the headlamp 10 of an embodiment of embodiment 2, to be energized separately bright light by making two filaments 12a, 12b, the light distribution patterns that utilizes the light of the filament 12a of My World to be formed can be formed and utilize the light distribution patterns overlap that formed from the light of the filament 12b of the opposing party and obtain brighter predetermined light distribution patterns (such as, passing beam light distribution patterns P1).

And, according to the headlamp 10 of this embodiment, the light distribution patterns formed owing to utilizing the light of the filament 12a of My World and the light distribution patterns overlap utilizing the light from the filament 12b of the opposing party to be formed, even if thus reduce and make two filament 12a, the current value that 12b is energized separately is to make each filament 12a, 12b brightness is dimmed, also can be formed and utilize from two filament 12a, the predetermined light distribution patterns of the light formation of the side in 12b or the opposing party (such as, passing beam light distribution patterns P1) equivalent brightness predetermined light distribution patterns (such as, passing beam light distribution patterns P1).Like this, by reducing the current value making each filament 12a, 12b be energized separately, the life-span of each filament 12a, 12b can be extended.

Embodiment 3

Embodiment 3 is variation of embodiment 2, and omission describes by same section.

In embodiment 3, see Figure 10 ~ 12, on the basis of embodiment 2, projecting lens 11 is not formed separately has the lens cut-off portion 11b with identical function in embodiment 1 and 2, is equivalent to eliminate lens cut-off portion 11b.

In embodiment 3, form additional pattern forming portion by the 2nd reflecting surface 14 and the 3rd reflecting surface 17, form the additional light distribution patterns P2 in left side by the 3rd reflecting surface 17 _llight distribution patterns P2 is added with right side _r, those skilled in the art can require design the 3rd reflecting surface 17 arbitrarily according to this.

According to the headlamp 10 of embodiment 3, only need add additional pattern forming portion to the existing optical unit that can form passing beam light distribution patterns, adding particularly to make by light source 12 (two filament 12a, the filament of at least one party in 12b) lens component from the light launched to the non-transmission of reverberation Ray1 from described 1st reflecting surface 13 of projecting lens 11 can coalescence transmitted through the second reflecting surface 14 of this lens component and the 3rd reflecting surface 17, just (when such as turning to) road surface of direction of rotation can be irradiated (with reference to Fig. 5 (b) when rotated, Fig. 7 (b), Fig. 9).I.e. headlamp 10 according to the present embodiment, does not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) can irradiate the motorcycle-use projector headlight on the road surface of direction of rotation when rotated.

Embodiment 4

In embodiment 4, on the basis of embodiment 2, be equivalent to eliminate lens cut-off portion 11b and the 3rd reflecting surface 17.

Projecting lens 11 in embodiment 4, as shown in Figure 14 (c), can adopt so-called zero diopter lens section 11e.In alternate embodiments, existing projecting lens 11 can be adopted.

In embodiment 4, only form additional pattern forming portion by the 2nd reflecting surface 14.By designing the reflector space on the 2nd reflecting surface 14, the light making the 2nd reflecting surface 14 can make to launch from light source 12 understands coalescence transmitted through described lens component to the lens component (part for projecting lens) of the non-transmission of reverberation Ray1 from the 1st reflecting surface 13 of projecting lens 11, and make the reverberation Ray2 from the 2nd reflecting surface 14 transmitted through described lens component be positioned at the left side of vehicle body longitudinal median plane and the area illumination on right side to vehicle front, form the additional light distribution patterns P2 in left side _llight distribution patterns P2 is added with right side _r.

According to the headlamp 10 of embodiment 4, only need add the 2nd reflecting surface 14 in present embodiment to the existing optical unit that can form passing beam light distribution patterns, just (when such as turning to) road surface (with reference to Fig. 5 (b), Fig. 7 (b), Fig. 9) of direction of rotation can be irradiated when rotated.I.e. headlamp 10 according to the present embodiment, does not need steering indicating light, just can compared with the pastly form at low cost and (when such as turning to) can irradiate the motorcycle-use projector headlight on the road surface of direction of rotation when rotated.

Embodiment 5

Embodiment 5 is variation of embodiment 1-4, and omission describes by same section.

In embodiment 5, on the left of additional pattern forming portion is only formed, additional light distribution patterns and right side add the one in the middle of light distribution patterns.Such as an embodiment is: lens are ended portion 11b symmetrical two parts on projecting lens 11 and cancel a part.Another embodiment makes the symmetrical partial cancellation part of the second reflecting surface 14.Another embodiment makes the 3rd reflecting surface 17 only be configured in side, etc.

According to the invention that embodiment 5 is recorded, one in the middle of light distribution patterns is added because additional light distribution patterns forming portion can form the additional light distribution patterns in left side and right side, now, need a steering indicating light to configure the additional light distribution patterns of opposite side again, just can form when rotated the motorcycle-use projector headlight that (when such as turning to) irradiates the road surface of direction of rotation, with need compared with two steering indicating lights in prior art, the invention that embodiment 5 is recorded still can reduce costs to a certain extent, and also provide a kind of selection configuring motorcycle-use projector headlight.

Other modified example

In embodiment 1 ~ 2,4 ~ 5, describe the example using the lens cut-off portion 11b (with reference to Fig. 6 (a), Fig. 6 (b)) comprising fully reflecting surface 11b1, but the present invention is not limited to this.

Such as, in one embodiment, as shown in Figure 14 (a), fully reflecting surface 11b1 can be replaced and use the lens cut-off portion 11c comprising plane of refraction 11c1.In addition, in another embodiment, as shown in Figure 14 (b), the lens cut-off portion 11d comprised as the lens face 11d1 that can perform fully reflecting surface and plane of refraction function can be used.In another embodiment, as shown in Figure 14 (c), also can replace lens cut-off portion 11b, 11c, and use the so-called zero diopter lens section 11e not comprising fully reflecting surface 11b1 or plane of refraction 11c1.

In embodiment 1 ~ 5, describe to use to comprise and carried out the example (with reference to Fig. 4) of halogen bulb as light source 12 of two filaments 12a, 12b of light on and off control respectively, but the present invention is not limited to this.Such as, as shown in figure 15, in another embodiment, the light source only comprising a filament (such as suitable with filament 12b filament) can be used as light source 12.

In embodiment 1 ~ 5, describe the example (with reference to Fig. 1) configured by the optical unit about 20 of the headlamp 10 (optical unit) of passing beam and driving beam, but the present invention is not limited to this.Such as, as shown in figure 16, in another embodiment, the optical unit 20 of the headlamp 10 of passing beam and driving beam can be configured in the central authorities in overall width direction and arrange up and down.Like this, can left and right (region A _r, A _l) irradiate equably, thus can at region A _r, A _lthe left side of the impartial brightness of interior formation adds light distribution patterns P2 _llight distribution patterns P2 is added with right side _r.

In embodiment 1 ~ 5, describe the example that lens cut-off portion 11b is configured in the below (with reference to Fig. 1, Fig. 4 etc.) of projecting lens portion 11a, but the present invention is not limited to this.Such as, as shown in Figure 17, Figure 21, in another embodiment, lens can be ended portion 11b be configured in the top of projecting lens 11a and the 2nd reflecting surface (reflector space 14a, 14b) be configured in the top of light source 12, projecting lens portion 11a is configured in the bottom of projecting lens 11, first shading piece 15 is positioned at the below of lens cut-off portion 11b, can make the light incidence of launching upward from light source 12 (filament 12a and/or 12b) like this.

In aforementioned each embodiment, describing headlamp 10 is the optical units being configured to be formed passing beam light distribution patterns, but the present invention is not limited to this.Such as, in other embodiments, headlamp 10 can be the optical unit of the driving beam light distribution patterns of the hot-zone (hotzone) being configured to comprise in the region being formed in the intersection point comprising plumb line V and horizontal line H.Such as, by removing the first shading piece 15 from the headlamp 10 shown in Fig. 3, the 1st reflecting surface 13 being configured to the reflecting surface forming driving beam light distribution patterns, the headlamp 10 of driving beam can be formed.

The embodiment of above-mentioned each side is all only exemplary.The present invention can't help these records and carries out determinate explanation.The present invention can utilize other various modes to implement in the scope not departing from its spirit or principal character.All equivalent variations of doing according to content of the present invention and modification, namely any other people the additional light distribution patterns forming portion that can form at least one additional light distribution patterns is set in a headlamp, should protection scope of the present invention be belonged to.

Claims

1. a motorcycle-use projector headlight, is characterized in that, comprising:

Light source, described light source comprises at least two filaments;

2nd reflecting surface, described 2nd reflecting surface is assembled to described lens cut-off portion from the light of at least one filament emission described at least two filaments for making;

In the first banded shading piece, described first shading piece is configured between described projecting lens and described light source along overall width direction, and the reverberation from described 2nd reflecting surface incides described lens cut-off portion by the below of described first shading piece; And

2. a motorcycle-use projector headlight, is characterized in that, comprising:

Projecting lens;

Light source, described light source comprises at least two filaments;

From the reverberation of described 2nd reflecting surface by from the total reflection of the lens component of the non-transmission of reverberation of described 1st reflecting surface or the reflection of refraction and described 3rd reflecting surface, jointly form more bright described left side and add light distribution patterns and described right side adds light distribution patterns.

3. a motorcycle-use projector headlight, comprise projecting lens, light source and the 1st reflecting surface, described projecting lens has projecting lens portion, described 1st reflecting surface for make the light launched from described light source converge to described projecting lens optical axis near and transmitted through described projecting lens portion, and form predetermined light distribution patterns transmitted through the light in described projecting lens portion; It is characterized in that, described motorcycle-use projector headlight also comprises additional light distribution patterns forming portion, and described additional light distribution patterns forming portion adds light distribution patterns for the formation of left side and right side adds light distribution patterns,

Described additional light distribution patterns forming portion comprises the 2nd reflecting surface and the 3rd reflecting surface, described 2nd reflecting surface is assembled to the lens component of the non-transmission of reverberation from described 1st reflecting surface described projecting lens for making the light launched from described light source, forms described left side add light distribution patterns and described right side adds light distribution patterns by described 3rd reflecting surface.

4. motorcycle-use projector headlight according to claim 3, is characterized in that, described additional light distribution patterns forming portion also comprises:

Lens cut-off portion, described lens cut-off portion is located at described projecting lens, and described 2nd reflecting surface is assembled to described lens cut-off portion for making the light launched from described light source;

Described lens cut-off portion is positioned at the left side of vehicle body longitudinal median plane and the regional reflex on right side or refraction for the reverberation from described 2nd reflecting surface making to incide described lens cut-off portion to vehicle front, with the reflection of described 3rd reflecting surface, jointly form described left side and add light distribution patterns and described right side adds light distribution patterns.

5. motorcycle-use projector headlight according to claim 3, is characterized in that, described additional light distribution patterns forming portion comprises:

6. motorcycle-use projector headlight according to claim 3, is characterized in that, described additional light distribution patterns forming portion comprises:

7. the motorcycle-use projector headlight according to claim 4 or 6, is characterized in that, what described lens cut-off portion carried out the reverberation from described 2nd reflecting surface is reflected into total reflection.

8. motorcycle-use projector headlight according to claim 7, it is characterized in that, described projecting lens portion and described lens cut-off portion are arranged in described projecting lens along the vertical direction, and described lens cut-off portion comprises the lens face being symmetrically formed at described projecting lens.

9. according to the motorcycle-use projector headlight in claim 1 ~ 6 described in any one, it is characterized in that, described left side adds light distribution patterns and described right side adds the top that light distribution patterns is positioned at described predetermined light distribution patterns.

10. motorcycle-use projector headlight according to claim 1, it is characterized in that, described first shading piece forms dead line for blocking from a part for the reverberation of described 1st reflecting surface and the part of light that sends from described light source, and described first shading piece does not block the reverberation from described 2nd reflecting surface.

11. according to the motorcycle-use projector headlight in claim 2,4 ~ 6 described in any one, it is characterized in that, described motorcycle-use projector headlight also comprises in the first banded shading piece, described first shading piece is configured between described projecting lens and described light source along overall width direction, described first shading piece forms dead line for blocking from a part for the reverberation of described 1st reflecting surface and the part of light that sends from described light source, and described first shading piece does not block the reverberation from described 2nd reflecting surface.

12., according to the motorcycle-use projector headlight in claim 2,5 ~ 6 described in any one, is characterized in that, described 3rd reflecting surface is formed on the decorative element of the surrounding being configured at described projecting lens.

13. according to the motorcycle-use projector headlight in claim 3 ~ 6 described in any one, it is characterized in that, described light source comprises at least two filaments, and described motorcycle-use projector headlight also comprises can make at least two described filaments alive circuit respectively.

14. motorcycle-use projector headlights according to claim 1 and 2, it is characterized in that, described circuit, by least one filament energising at least two filaments described in only making, makes utilization meet the luminosity of standard-required from the described predetermined light distribution patterns that the light of at least one filament described is formed; Or described circuit is by each filament energising at least two filaments described in making, utilization is made to meet the luminosity of standard-required from the described predetermined light distribution patterns that the light of described each filament is formed.

15. motorcycle-use projector headlights according to claim 13, it is characterized in that, described circuit, by least one filament energising at least two filaments described in only making, makes utilization meet the luminosity of standard-required from the described predetermined light distribution patterns that the light of at least one filament described is formed; Or described circuit is by each filament energising at least two filaments described in making, utilization is made to meet the luminosity of standard-required from the described predetermined light distribution patterns that the light of described each filament is formed.

16. motorcycle-use projector headlights according to claim 14, it is characterized in that, described at least two filaments are arranged in order along the optical axis direction of described projecting lens, described motorcycle-use projector headlight also comprises the second shading piece, described second shading piece is configured in the below of the filament of the side, forefront at least two described filaments, for blocking light from the filament of side, forefront to form dead line.

17. motorcycle-use projector headlights according to claim 15, it is characterized in that, described at least two filaments are arranged in order along the optical axis direction of described projecting lens, described motorcycle-use projector headlight also comprises the second shading piece, described second shading piece is configured in the below of the filament of the side, forefront at least two described filaments, for blocking light from the filament of side, forefront to form dead line.

18. 1 kinds of motorcycle-use projector headlights, comprise projecting lens, light source and the 1st reflecting surface, described projecting lens has projecting lens portion, described 1st reflecting surface for make the light launched from described light source converge to described projecting lens optical axis near and transmitted through described projecting lens portion, and form predetermined light distribution patterns transmitted through the light in described projecting lens portion; It is characterized in that, described motorcycle-use projector headlight also comprises additional light distribution patterns forming portion, and described additional light distribution patterns forming portion adds light distribution patterns for the formation of left side or right side adds light distribution patterns,

Described additional light distribution patterns forming portion comprises the 2nd reflecting surface and the 3rd reflecting surface, described 2nd reflecting surface is assembled to the lens component of the non-transmission of reverberation from described 1st reflecting surface described projecting lens for making the light launched from described light source, forms described left side add light distribution patterns or described right side adds light distribution patterns by described 3rd reflecting surface.