CN107614983A - Headlamp module and headlamp - Google Patents

Headlamp module and headlamp Download PDF

Info

Publication number
CN107614983A
CN107614983A CN201680028998.3A CN201680028998A CN107614983A CN 107614983 A CN107614983 A CN 107614983A CN 201680028998 A CN201680028998 A CN 201680028998A CN 107614983 A CN107614983 A CN 107614983A
Authority
CN
China
Prior art keywords
projection lens
axis
headlamp module
headlamp
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201680028998.3A
Other languages
Chinese (zh)
Other versions
CN107614983B (en
Inventor
山隅允裕
大岛律也
道盛厚司
诹访胜重
小岛邦子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority claimed from PCT/JP2016/055182 external-priority patent/WO2016189907A1/en
Publication of CN107614983A publication Critical patent/CN107614983A/en
Application granted granted Critical
Publication of CN107614983B publication Critical patent/CN107614983B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Headlamp module (1) has light source (11), projection lens (13), holding member (15) and drive division (16).Light source (11) sends light.Projection lens (13) incident light projects as incident light, and as projection light.Holding member (15) is included in the deflection division (502,503) on the optical axis direction of projection lens (13) with length, one end of the deflection division (502,503) is fixing end and the other end is movable end, by keeping projection lens (13) in movable end, projection lens (13) is kept into can be mobile relative to light source (13).Drive division (16) makes projection lens (13) mobile.Bent by deflection division (502,503), projection lens (13) translates in the plane vertical with the optical axis of projection lens (13).

Description

Headlamp module and headlamp
Technical field
The present invention relates to for motor vehicle headlamp, in particular to the small-sized preceding photograph that luminous intensity distribution is changed according to travel conditions Lamp module.
Background technology
According to the regulation in Europe, the change of the external environment condition with the change of the movement of vehicle or vehicle is defined in regulation Change AFS (the Adaptive Front Lighting System for the light distribution patterns for accordingly changing headlamp under steam：It is adaptive Answer head lamp system).For example, AFS headlamp is equipped with by making luminous intensity distribution move in left-right direction, it is ensured that be included in turning row The visual field of wide scope including the blinkpunkt that driver in being driven when sailing observes.Also, by the preceding photograph for being equipped with AFS Lamp, driver being capable of the barriers such as finder, animal or parking vehicle as early as possible.Also, driver can more safely take For the Anti-collision Actions of barrier etc..
In addition, in the case where people or goods etc. are equipped on the attending a banquet of vehicle, vehicle tilts in front-rear direction.Also, In the case where vehicle accelerates or slows down, vehicle also tilts in front-rear direction.Therefore, the luminous intensity distribution of headlamp is in the vertical direction Skew.Also, generation make to car it is dazzling the problem of." dazzling " refers to make us twinkling.For the problem, it is known to make headlamp Luminous intensity distribution the automatic flat-adjustable function that moves along the vertical direction of optical axis.
It is equipped with to enable luminous intensity distribution in left-right direction or the AFS of above-below direction movement headlamp is improved to driver Visual field ensure, and reduce to dazzling to caused by car, contribute to traffic safety.Based on these situations, it is necessary to pass through Make luminous intensity distribution in left-right direction or above-below direction is mobile and change the headlamp of light distribution patterns.
Patent document 1 discloses make lens along optical axis direction and the drive mechanism axially kept straight on vertical with optical axis.It is " straight OK " refer to move along a straight line.
Prior art literature
Patent document
Patent document 1：Japanese Utility Model publication 8-3922
The content of the invention
Problems to be solved by the invention
But the mechanism for making lens keep straight on and carrying out distribution controls described in patent document 1 has sliding part, therefore machine Structure is complicated.Also, in the case of being driven on the face vertical with optical axis to multiple directions, the machine described in patent document 1 Structure becomes big.
The present invention realize be equipped with making luminous intensity distribution in left-right direction or the drive mechanism of above-below direction movement it is small-sized before Illuminator module.
The means used to solve the problem
The headlamp module of the present invention has：Light source, it sends light；Projection lens, its incident described light as incident light, And projected as projection light；Holding member, it is included in the deflection division on the optical axis direction of the projection lens with length, should One end of deflection division is fixing end and the other end is movable end, by keeping the projection lens in the movable end, by described in Projection lens, which is kept into, to be moved relative to the light source；And drive division, it moves the projection lens, by described Deflection division is bent, and the projection lens translates in the plane vertical with the optical axis of the projection lens.
Invention effect
The headlamp module of the present invention can suppress the structure that luminous intensity distribution can be made to be moved on the face vertical with projecting direction Maximization.
Brief description of the drawings
Fig. 1 is the exploded perspective view of the headlamp module of embodiment 1.
Fig. 2 is the assembling figure of the headlamp module of embodiment 1.
Fig. 3 is the component diagram of the headlamp module of embodiment 1.
Fig. 4 is the component diagram of the headlamp module of embodiment 1.
Fig. 5 is the figure of the action of the drive device for the headlamp module for showing embodiment 1.
Fig. 6 is the figure of the action of the drive device for the headlamp module for showing embodiment 1.
Fig. 7 is the figure of the action of the drive device for the headlamp module for showing embodiment 1.
Fig. 8 is the figure of the action of the drive device for the headlamp module for showing embodiment 1.
Fig. 9 is the structure chart of the headlamp of embodiment 1.
Figure 10 is the figure of the luminous intensity distribution for the headlamp for showing embodiment 1.
Figure 11 is the stereogram of the headlamp module of embodiment 2.
Figure 12 is the exploded perspective view of the headlamp module of embodiment 2.
Figure 13 is the component diagram of the headlamp module of embodiment 2.
Figure 14 is the component diagram of the headlamp module of embodiment 2.
Figure 15 is the component diagram of the headlamp module of embodiment 2.
Figure 16 is the figure of the action of the part for the headlamp module for showing embodiment 2.
Figure 17 is the figure of the action of the part for the headlamp module for showing embodiment 2.
Figure 18 is the figure of the action of the part for the headlamp module for showing embodiment 2.
Figure 19 is the figure of the action of the part for the headlamp module for showing embodiment 2.
Figure 20 is the structure chart of the headlamp of embodiment 2.
Figure 21 is the figure of the variation of the part for the headlamp module for showing embodiment 2.
Figure 22 is the figure of the variation of the part for the headlamp module for showing embodiment 2.
Embodiment
The headlamp module of the present invention is characterised by that headlamp module has：Light source, it sends light；Projection lens, its The incident light projected from the light source projects as incident light, and using the incident light as projection light to vehicle front；Keep Part, with the deflection division with length on the optical axis direction of the projection lens, one end of the deflection division is fixing end for it And the other end is movable end, the projection lens being connected with the movable end is kept into by the holding member, by described Deflection division is bent, and the projection lens can be relative to the optical component in the plane vertical with the optical axis of the projection lens Upper translation；And drive division, it makes the projection lens move on the plane.
In addition, the headlamp module of the present invention is characterised by that headlamp module has：Light source；Projection lens, it is incident The light projected from the light source projects as incident light, and using the incident light as projection light to vehicle front；Adjustment axis, its With the connecting portion being connected with the projection lens；And drive division, its described projection of driving of direction along the adjustment axis are saturating Mirror adjustment axis, and drive the projection lens adjustment axis to be rotated around the axle, the connecting portion has core shift portion, the core shift portion There is central shaft in the position different from the rotary shaft of the adjustment axis.
Embodiment 1
In recent years, in the regulation in Europe, approve and make the light source (hereinafter referred to as semiconductor light source) for having used semiconductor For for motor vehicle headlamp.Semiconductor light source is, for example, LED light source or LASER Light Source etc..It is for motor vehicle based on these situations Headlamp is minimized by carrying semiconductor light source.In embodiment 1, it is assumed that light source 11 is, for example, that LED light source is said It is bright.
In addition, in for motor vehicle headlamp, the luminous intensity distribution of the light sent from light source portion is formed in the upper edge of light distribution patterns Dead line.Also, the formation of the dead line is by rules and regulations.Light distribution patterns are such as passing through lampshade (such as shadow shield) Shading and formed.In addition, light distribution patterns are formed such as the reflection by reflector (such as speculum).In addition, luminous intensity distribution figure Case is for example formed by the refraction of lens.
" luminous intensity distribution " refers to photometric distribution of the light source relative to space.That is, the spatial distribution of the light sent from light source." luminous intensity distribution Pattern " represents the shape of light beam and the intensity distribution of light caused by from the direction of the light of light source radiation.Therefore, light is made Direction of illumination is in left-right direction or above-below direction movement is also contained in the change of " light distribution patterns "." light distribution patterns " also serve as The meaning of illumination pattern on shadow surface 9 (in the plane that the front of headlamp is hypothetically set) as shown below.Also, such as Shape according to luminous intensity distribution as defined in regulation etc. is also referred to as light distribution patterns.Also, " matching somebody with somebody light distribution " is the intensity of light relative to from light The distribution in the direction of the light of source radiation." matching somebody with somebody light distribution " also serves as the meaning of the Illumination Distribution on shadow surface 9 as shown below.
In order to easily illustrate, XYZ orthogonal axis is shown in the various figures.In the following description, if headlamp mould The front of block is+Z-direction, if rear is-Z-direction.That is, the direction (projecting direction) that headlamp module sends light is+Z axis Direction.Towards front, if left side is+X-direction, if right side is-X-direction.If upper direction (the day short side of headlamp module To) it is+Y direction, if the lower direction (ground direction) of headlamp module is-Y direction.
In the headlamp module from rear (- Z-direction), the axle centered on Z axis, if being clockwise+RZ sides To if being counterclockwise-RZ directions.Also, in the headlamp module from right side (- X-direction), centered on X-axis Axle, if being clockwise+RX direction of principal axis, if being counterclockwise-RX direction of principal axis.Also, from below to (- Y direction) When observing headlamp module, the axle centered on Y-axis, if being clockwise+RY direction of principal axis, if being counterclockwise-RY axle sides To.
Fig. 1 is the exploded perspective view of the headlamp module 1 of embodiment 1.Also, Fig. 2 is the headlamp mould of embodiment 1 The assembling stereogram of block 1.Fig. 3 and Fig. 4 is the stereogram of a part for the headlamp module for illustrating embodiment 1.
The headlamp module 1 of embodiment 1 has light source 11, projection lens 13, holding member 15 and drive division 16.Preceding photograph Lamp module 1 can have optical component 12, lens mount 14 and base portion 17.In embodiment 1, holding member 15a will be included And it is parallel spring that holding member 15b holding member 15, which for example describes,.
<The inscape of optical system>
Light source 11 can for example use LED (Light Emitting Diode：Light emitting diode), xenon lamp or halogen Lamp etc..Also, light source 11 can also use electroluminescent cell, semiconductor laser or the fluorophor to coating in the plane Irradiate excitation light and make its luminous light source etc..Also, because light source 11 generates heat, thus can have to outside release heat Radiator.The light source 11 of the headlamp module 1 of embodiment 1 has LED light source 101 and radiator 102.
In embodiment 1, light source 11 is held in base portion 17.
Light distribution patterns are assembled or formed to the emergent light of light source 11 by optical component 12, and fixed match somebody with somebody is projected to+Z-direction The light of light.Here, " fixed luminous intensity distribution " for example refers to the luminous intensity distribution for meeting above-mentioned regulation.Also, such as using multiple headlamps In the case that module 1 forms a light distribution patterns, refer to the luminous intensity distribution for distributing to the headlamp module 1.
Optical component 12 is, for example, lens or light guide member etc..Also, optical component 12 can also use lampshade or Reflector.The optical component 12 of the headlamp module 1 of embodiment 1 has lens 201 and light guide member 202.Embodiment 1 Headlamp module 1 forms luminous intensity distribution by lens 201 and light guide member 202, thus it is its feature that optical component 12 is small.
Optical component 12 is for example pressed against in base portion 17 by leaf spring and kept.The guarantor of lens 201 and light guide member 202 The bonding based on bonding agent or the fastening based on screw component etc. can also be used by holding.
Light guide member 202 is, for example, fiber waveguide or photoconductive tube etc.." fiber waveguide " is to utilize the hyalomeres such as acrylic resin The inner face reflection of part, the optical element that will efficiently be guided from the incident light in side to opposite side." photoconductive tube " is light is existed The inner face reflection of hollow part is multiple, the optical element that will be guided from the incident light in side to opposite side.It can enumerate inside It is set to hollow and the mode of side is formed by speculum and polygon prism is formed and using in side by the transparent material such as glass The mode of total reflection.
The exit facet of light guide member 202 is located at the position being optically conjugated with shadow surface 9." being optically conjugated " refers to The relation being imaged from the light that a point is sent in another point.That is, the shape of the light on exit facet is projected on shadow surface 9. That is, the shape of the exit facet of light guide member 202 is projected on shadow surface 9.The focus of projection lens 13 is located at light guide member 202 Exit facet on.
Projection lens 13 is by from the light that optical component 12 projects to+Z-direction projection.Projection lens 13 is for example with positive Focal power (power).The projection lens 13 of the headlamp module 1 of embodiment 1 has lens face 301 and flange part 302.
For example, the line of the center of curvature in two faces of connection lens face 301 is parallel with Z axis.That is, the optical axis of projection lens 13 It is parallel with Z axis.
Flange part 302 is formed at the end face of the X-direction of projection lens 13 and the end face of Y direction.Flange part 302 be in from The convex form that the end face of projection lens 13 protrudes.Also, flange part 302 is in that the corner for the end face for eliminating lens face 301 forms Stairstepping.Projection lens 13 is kept via flange part 302 by lens mount 14.
<Lens mount 14>
Lens mount 14 has lens mount housing 401.Also, lens mount 14 can have X-axis adjustment axle 402 or Y-axis to adjust Bearing 403.Also, lens mount 14 can have internal thread hole 404.
Lens mount housing 401 is to maintain the part of projection lens 13.
Lens mount housing 401 is in frame shape.
Also, lens mount housing 401 is for example in the frame shape for the plane of incidence for not interfering projection lens 13 from-Z-direction Shape." not interfering " refers to not enter.That is, lens mount housing 401 does not block the light projected from optical component 12.
Lens mount housing 401 covers the stairstepping of flange part 302.Also, lens mount housing 401 has covering flange part The fitting portion 405 of 302 convex form.Projection lens 13 is positioned at lens mount housing 401 by flange part 302.
Holding of the projection lens 13 on lens mount housing 401 be using spring (such as spring members etc.), screw or The progress such as bonding agent.
X-axis adjustment axle 402 is the opposed facing one group of axle abreast set with Y-axis.That is, X-axis adjustment axle 402 includes two Individual axle.X-axis adjustment axle 402 be formed at lens mount housing 401+end of X-direction.X-axis adjustment axle 402 is formed at lens mount The inner side of housing 401.X-axis adjustment axle 402 is embedded in the cam part 603y for the drive division 16y that drive division 16 described later is included In the cam path 605y of upper setting.
Y-axis adjustment axle 403 is the opposed facing one group of axle abreast set with X-axis.That is, Y-axis adjustment axle 403 includes two Individual axle.Y-axis adjustment axle 403 be formed at lens mount housing 401-end of Y direction.Y-axis adjustment axle 403 is formed at lens mount The inner side of housing 401.Y-axis adjustment axle 403 is embedded in the cam part 603x for the drive division 16x that drive division 16 described later is included In the cam path 605x of upper setting.
By cam part 603x and cam part 603y collectively as cam part 603.Also, by cam path 605x and convex Race 605y is collectively as cam path 605.
Internal thread hole 404 located at lens mount housing 401+face of Y direction side on and the face of-Y direction side on.Interior spiral shell Pit 404 located at lens mount housing 401+face of Y direction side+end of X-direction side and the end of-X-direction side. Also, internal thread hole 404 located at lens mount housing 401-face of Y direction side+end of X-direction side and-X-direction The end of side.
Internal thread hole 404 is the screwed hole parallel with Y-axis.Internal thread hole 404 is for by the Y of holding member 15 described later The screwed hole that direction of principal axis deflection division 503a, 503b and lens mount housing 401 connect.That is, lens mount 14 passes through in holding member 15 The internal thread hole 404 of upper setting is simultaneously fixed on holding member 15 using screw.Also, in lens mount 14 can also be not provided with Screwed hole 404, and make to be adhesively secured on holding member 15.
Lens mount 14 is installed in base portion 17 by holding member 15.Holding member 15 is formed using leaf spring.Therefore, Lens mount 14 can be moved in X-direction or Y direction by holding member 15 relative to base portion 17.That is, lens mount 14 can utilize the flexure of leaf spring to be moved in X-direction or Y direction.
Also, lens mount 14 adjusts axle 402 by X-axis or Y-axis adjusts axle 403 and kept by drive division 16.That is, lens mount 14 X-direction and the position of Y direction are adjusted the cam part 603 of axle 402, Y-axis adjustment axle 403 and drive division 16 by X-axis Determine.
The position of the X-direction of lens mount 14 adjusts axle 402 by X-axis and cam part 603y is determined.The Y-axis of lens mount 14 The position in direction adjusts axle 403 by Y-axis and cam part 603x is determined.
In addition, in embodiment 1, X-axis adjustment axle 402 and Y-axis adjustment axle 403 are located at the side of projection lens 13, cam path 605x, 605y are located at the side of drive division 16.It may also be cam path 605x, 605y are located at the side of projection lens 13, X-axis adjustment axle 402 and Y-axis adjustment axle 403 be located at the side of drive division 16.That is, as long as cam mechanism is formed in the side of projection lens 13 and the side of drive division 16 .
<Holding member 15>
Below, holding member 15 is illustrated using Fig. 3.
Holding member 15 is formed by spring.As described above, holding member 15 is for example formed by leaf spring.Holding member 15 is in plate Shape.Holding member 15 is for example in thin sheet form.
In embodiment 1, holding member 15 is formed with spring material.However, holding member 15 is to be used to make projection saturating The part that mirror 13 moves in the state of posture is kept to X-direction or Y direction.Therefore, holding member 15 not necessarily needs If spring material.
In embodiment 1, holding member 15 is easily made in order to which metal plate is bent, is carried out using " spring " Explanation.In addition, when making holding member 15 with spring material, it can suppress that there is X-axis adjustment axle 402, Y-axis in component parts Adjust the loosening between the pin and groove of the cam mechanism of axle 403 and cam part 603.
In addition, holding member 15 is by the way that metal plate is bent to be fabricated to.However, it is possible to take plate using resin etc. The structure of X-direction deflection division 502 and Y-direction deflection division 503 connection of shape.The structure for example can be by using insert molding And realize.Insert molding be typically insertion mould in metal parts around resin by injection make metal and resin integration Forming method.
Two holding members 15a, 15b are used in embodiment 1.That is, holding member 15 has two panels leaf spring as one Group.That is, two holding members 15a, 15b are used as parallel spring.
One holding member 15a be installed on base portion 17+side of X-direction.Another holding member 15b is installed on Base portion 17-side of X-direction.Holding member 15 includes X-direction deflection division 502 and Y direction deflection division 503.
X-direction deflection division 502 is used for unified representation X-direction deflection division 502a and X-direction deflection division 502b.
X-direction deflection division 502 is in the shape.The rectangular shaped of X-direction deflection division 502.In figure 3, in order to adjust Spring force, hole is provided with the central portion of X-direction deflection division 502.
X-direction deflection division 502 and YZ plane configured in parallel.One end of X-direction deflection division 502 is installed on base portion 17.In figure 3, the end of-Z-direction is installed on base portion 17.X-direction deflection division 502 is installed on the side of base portion 17. X-direction deflection division 502 is for example anchored on base portion 17 with screw.
X-direction deflection division 502 is bent in the X-axis direction relative to the part for being installed in base portion 17, thus makes throwing Lens 13 are penetrated to move in the X-axis direction.
Y direction deflection division 503 is used for unified representation Y direction deflection division 503a and X-direction deflection division 503b.
Y direction deflection division 503 is in the shape.The rectangular shaped of Y direction deflection division 503.
Y direction deflection division 503 and ZX plane configured in parallel.One end of Y direction deflection division 503 is bent with X-direction Portion 502 connects.In figure 3, Y direction deflection division 503-end of Z-direction and X-direction deflection division 502+Z axis side To end connect.
Y direction deflection division 503 using face in parallel with each other opposed facing two panels as a pair.One Y-axis of one centering Direction deflection division 503a, 503b be installed on X-direction deflection division 502+end of Y direction.Another Y-axis side of one centering To deflection division 503a, 503b be installed on X-direction deflection division 502-end of Y direction.
Projection lens 13 is bent by deflection division 502,503 to be guide by holding member 15 in the light with projection lens 13 Translated in the vertical plane of axle (X/Y plane).
In figure 3, Y direction deflection division 503a is to bend 90 degree to-X-direction relative to X-direction deflection division 502a And formed.Also, Y direction deflection division 503b be relative to X-direction deflection division 502b bend 90 degree to+X-direction and Formed.
The other end of Y direction deflection division 503 is installed on lens mount housing 401.Y direction deflection division 503+Z axis side To end be installed on lens mount housing 401.
One centering+Y direction deflection division 503a, a 503b of Y direction side is installed on the+Y of lens mount housing 401 The end of direction of principal axis.One centering-another Y direction deflection division 503a, 503b of Y direction side be installed on lens mount housing 401-end of Y direction.
In embodiment 1, Y direction deflection division 503a, 503b are for example fastened on located at lens mount housing using screw In 401 internal thread hole 404.
In addition, in the case where X-axis adjusts axle 402 and Y-axis adjustment axle 403 is formed directly into projection lens 13, can incite somebody to action Holding member 15 is directly connected with projection lens 13.
X-direction deflection division 502 can make lens mount 14 and throw by being bent in the X-axis direction relative to base portion 17 Lens 13 are penetrated to move in the X-axis direction.On the other hand, Y direction deflection division 503 by relative to X-direction deflection division 502 The part of connection is bent in the Y-axis direction, and lens mount 14 and projection lens 13 can be made to move in the Y-axis direction.
Light source 11 is held in base portion 17.Also, projection lens 13 is kept into by holding member 15, the energy of projection lens 13 It is enough to be moved relative to base portion 17 in X-direction or Y direction.That is, projection lens 13 is kept into by holding member 15, is thrown Lens 13 are penetrated to move in X-direction or Y direction relative to light source 11.
As described above, holding member 15 is made up of multiple leaf springs.That is, it is that can make lens mount 14 without sliding part and throw Penetrate the mechanism that lens 13 move to multiple directions.
In addition, holding member 15 can also make X-direction deflection division 502 and Y direction deflection division 503 in Z-direction Reversedly be installed on lens mount housing 401+side of X-direction and the side of-X-direction.
As described above, projection lens 13 is kept into by holding member 15a, 15b, pass through X-direction deflection division 502a, 502b And Y direction deflection division 503a, 503b flexure, projection lens 13 can move in the plane (X/Y plane) vertical with optical axis.X Lens mount 14 is kept into and can moved in the X-axis direction relative to base portion 17 by direction of principal axis deflection division 502a, 502b.Also, Y Lens mount 14 is kept into and can moved in the Y-axis direction relative to base portion 17 by direction of principal axis deflection division 503a, 503b.
On the other hand, holding member 15a, 15b makes lens mount 14 not moved in the Z-axis direction relative to base portion 17.And And holding member 15a, 15b make lens mount 14 not rotated relative to base portion 17 on RX direction of principal axis.Also, holding member 15a, 15b make lens mount 14 not rotated relative to base portion 17 on RY direction of principal axis.Also, holding member 15a, 15b make lens Frame 14 does not rotate up relative to base portion 17 in RZ side.
That is, holding member 15a, 15b have lens mount 14 relative to base portion 17 in X-direction and Y direction from By spending.That is, can be moved up by holding member 15a, 15b, lens mount 14 relative to base portion 17 in X-direction and Y direction It is dynamic.Also, holding member 15a, 15b constrained lens frame 14 is relative to base portion 17 in Z-direction, RX direction of principal axis, RY direction of principal axis And the free degree on RZ directions.That is, can not be in Z-direction relative to base portion 17 by holding member 15a, 15b, lens mount 14 Upper movement, and can not be rotated up in RX direction of principal axis, RY direction of principal axis and RZ side.
<Drive division 16>
Below, drive division 16 is illustrated using Fig. 1 and Fig. 2.
The projection lens 13 that drive division 16 allows to move in X-direction or Y direction relative to light source 11 moves. Also, the projection lens 13 that can be moved relative to light source 11 in X-direction or Y direction is maintained at certain by drive division 16 Individual position.
Drive division 16 has driving source 601, feed screw 602 and cam part 603.
By for the structure for making drive division 16 that lens mount 14 and Y-axis be moved parallel to be set to drive division 16x (in Fig. 1 and Label 16x is eliminated in order to simplify) in Fig. 2.That is, drive division 16x has driving source 601x, feed screw 602x and cam part Part 603x.
Also, by for making the structure of drive division 16 that lens mount 14 and X-axis be moved parallel to be set to drive division 16y.That is, Drive division 16y has driving source 601y, feed screw 602y and cam part 603y.
The unified representation driving source 601x of driving source 601 and driving source 602y.The unified representation feed screw of feed screw 602 602x and feed screw 602y.
Drive division 16 moves cam part 603 using driving source 601 and feed screw 602.In embodiment 1, drive Dynamic portion 16 makes cam part 603 move in the Z-axis direction.
In Fig. 4, cam part 603 has cam shell 604, cam path 605 and support shaft 606.Cam shell 604 is united One represents cam shell 604x and cam shell 604y.The unified representation support shaft 606x of support shaft 606 and support shaft 606y.
In Fig. 1, in order that projection lens 13 moves in X-direction or Y direction, headlamp module 1 has two Individual drive division 16x, 16y.In Fig. 1, for example, drive division 16x configurations base portion 17-bottom surface of Y-axis side.Drive division 16y examples Such as disposed in base portion 17+side of X-axis side.
Driving source 601 is, for example, stepper motor or DC motors etc..In Fig. 1, drive division 16x driving source 601x configurations Base portion 17-bottom surface of Y-axis side-Z-direction side.+ X of the drive division 16y driving source 601y configurations in base portion 17 The side of axle side-Z-direction side.
The axle of driving source 601 and Z axis configured in parallel.The axle of driving source 601 is, for example, the rotary shaft of motor.In driving source Feed screw 602 is installed on 601 axle.Driving source 601 can be the actuator with decelerator or coupler etc..Coupling Device is the equipment for ensureing axle tolerance.
Feed screw 602+Z axis side formed with feeding screw thread.
Drive division 16x feed screw 602x configurations base portion 17-bottom surface of Y-axis side+Z-direction side.Driving Portion 16y feed screw 602y configurations base portion 17+side of X-axis side+Z-direction side.
Feed screw 602 and Z axis configured in parallel.The feeding screw thread of feed screw 602 is inserted on cam part 603 and formed Internal thread in.Cam part 603 is configured in a manner of making internal thread parallel with Z axis.
In the axle rotation of driving source 601, feed screw 602 rotates.When feed screw 602 rotates, pass through screw thread It coincide, cam part 603 moves in the Z-axis direction.That is, moved in the Z-axis direction by the effect of screw thread, cam part 603. " effect of screw thread " refers to the effect that rotary motion is transformed to linear motion.
Cam part 603 has cam shell 604, cam path 605 and support shaft 606.
Cam path 605 is provided at the groove with depth of the side of cam shell 604.The depth of cam path 605 is that X-axis is adjusted Bearing 402 or Y-axis adjustment axle 403 do not touch the depth of the degree of the depths of groove.Equally, X-axis adjustment axle 402 or Y-axis are adjusted Bearing 403 has the length for the degree do not deviate from from cam path 605.
Support shaft 606 located at cam shell 604-face of Z axis side on.Support shaft 606 be from cam shell 604-Z axis The axle towards the extension of-Z-direction of side.Support shaft 606 and Z axis configured in parallel.Support shaft 606 is inserted in base portion 17 and set Elongated hole 705 in.
Support shaft 606 have not by the load for being applied to cam shell 604 or pass to cam shell 604 vibration it is straight Connect the function of passing to feed screw 602.Also, support shaft 606, which has, makes the function that cam part 603 does not rotate about the z axis. That is, the rotation in the RZ directions of the engaging cam part 603 of support shaft 606.
Cam part 603x includes cam path 605x.Cam path 605x has the axle that axle 403 is adjusted with the Y-axis of lens mount 14 The width of footpath formed objects.Here, " formed objects " refer to there is what Y-axis adjustment axle 403 can move in cam path 605x The size in the gap of degree.Cam path 605x is relative to XZ planar tilts.
In Fig. 1, cam path 605x-Z axis side relative to+Z axis side positioned at+Y-axis side.That is, on Y-axis adjustment axle 403 edge Cam path 605x to cam path 605x-Z axis side move when, Y-axis adjusts axle 403 and moved to+Y-axis side.
The length of cam path 605x Z-direction is that cam part 603x is moved in the Z-axis direction by feed screw 602x It is more than dynamic distance.The length of cam path 605x X-direction is more than the distance that lens mount 14 moves in the X-axis direction.It is convex Race 605x has in the case where making lens mount 14 be moved along X-direction, and Y-axis adjustment axle 403 does not touch cam path 605x's The depth of the degree of depths.Equally, Y-axis adjustment axle 403 has not from the length of the cam path 605x degree deviate from.
At the center for the Z-direction that Y-axis adjustment axle 403 is located at cam path 605x, luminous intensity distribution when vehicle is kept straight on will be irradiated The light of pattern.
Also, at the center for the Z-direction that Y-axis adjustment axle 403 is located at cam path 605x, cam part 603x will not enter Enter in the space surrounded to the plane of incidence of the exit facet by optical component 12 and projection lens 13.That is, 403, axle is adjusted in Y-axis When the center of cam path 605x Z-direction, cam part 603x will not block the light projected from optical component 12.
Also, in the case that lens mount 14 is closest to cam part 603x, cam part 603x will not also enter In the space surrounded to the plane of incidence of the exit facet by optical component 12 and projection lens 13.Also, even in lens mount 14 most In the case of cam part 603x, cam part 603x will not also enter saturating by the exit facet of optical component 12 and projection In the space that the plane of incidence of mirror 13 surrounds.That is, it is convex during the end for the Z-direction for being located at cam path 605x in Y-axis adjustment axle 403 Wheel component 603x will not block the light projected from optical component 12.
Cam part 603y includes cam path 605y.Cam path 605y has the axle that axle 402 is adjusted with the X-axis of lens mount 14 The width of footpath formed objects.Here, " formed objects " refer to there is what X-axis adjustment axle 402 can move in cam path 605y The size in the gap of degree.Cam path 605y is relative to YZ planar tilts.
In Fig. 1, cam path 605y-Z axis side relative to+Z axis side positioned at-X-axis side.That is, on X-axis adjustment axle 402 edge Cam path 605y to cam path 605y-Z axis side move when, X-axis adjusts axle 402 and moved to-X-axis side.
The length of cam path 605y Z-direction is that cam part 603y is moved in the Z-axis direction by feed screw 602y It is more than dynamic distance.The length of cam path 605y Y direction is more than the distance that lens mount 14 moves in the Y-axis direction.It is convex Race 605y has in the case where making lens mount 14 be moved along Y direction, and X-axis adjustment axle 402 does not touch cam path 605y's The depth of the degree of depths.Equally, X-axis adjustment axle 402 has not from the length of the cam path 605y degree deviate from.
At the center for the Z-direction that X-axis adjustment axle 402 is located at cam path 605y, luminous intensity distribution when vehicle is kept straight on will be irradiated The light of pattern.
Also, at the center for the Z-direction that X-axis adjustment axle 402 is located at cam path 605y, cam part 603y will not enter Enter in the space surrounded to the plane of incidence of the exit facet by optical component 12 and projection lens 13.That is, 402, axle is adjusted in X-axis When the center of cam path 605y Z-direction, cam part 603y will not block the light projected from optical component 12.
Also, in the case that lens mount 14 is closest to cam part 603y, cam part 603y will not also enter In the space surrounded to the plane of incidence of the exit facet by optical component 12 and projection lens 13.Also, even in lens mount 14 most In the case of cam part 603y, cam part 603y will not also enter saturating by the exit facet of optical component 12 and projection In the space that the plane of incidence of mirror 13 surrounds.That is, it is convex during the end for the Z-direction for being located at cam path 605y in X-axis adjustment axle 402 Wheel component 603y will not block the light projected from optical component 12.
Drive division 16 makes the situation that cam part 603 moves along Z-direction using driving source 601 and feed screw 602 Under, the position of lens mount 14 can be made to be moved on X/Y plane.On the other hand, drive mechanism 16 does not make cam part 603 , being capable of position of the constrained lens frame 14 on X/Y plane in the case that position is moved.
That is, drive division 16 can make the position of projection lens 13 in the case where making cam part 603 be moved along Z-direction Put and moved on X/Y plane.Also, drive mechanism 16 can constrain in the case where not making the position movement of cam part 603 Position of the projection lens 13 on X/Y plane.
That is, lens mount 14 can not be moved in the Y-axis direction by cam part 603x.Because cam part 603x keeps saturating The position of the X-axis adjustment axle 402 of mirror holder 14.Also, lens mount 14 can not be moved in the X-axis direction by cam part 603y. Because cam part 603y keeps the position of the Y-axis adjustment axle 403 of lens mount 14.
Also, X-axis adjusts axle 402 and Y-axis adjustment axle 403 has two pins respectively, thus cam part 603x, 603y are protected Hold the position in the RZ directions of lens mount 14.Also, cam part 603x, 603y can keep lens mount 14 RX direction of principal axis or RY position.
<Base portion 17>
Below, base portion 17 is illustrated using Fig. 4.
Base portion 17 has base housing 701.Base portion 17 can have internal thread hole 703, axis hole 704y and elongated hole 705y.Also, axis hole 704x and elongated hole 705x is provided with the position corresponding with cam part 603x of base portion 17, but is not schemed Show.The unified representation axis hole 704x of axis hole 704 and axis hole 704y.The unified representation elongated hole 705x of elongated hole 705 and elongated hole 705y.
Base housing 701 supports optical component 12.Base housing 701 keeps optical component 12.That is, base portion 17 supports light Department of the Chinese Academy of Sciences's part 12.Base portion 17 keeps optical component 12.
Also, base housing 701 supports light source 11.Base housing 701 keeps light source 11.That is, base portion 17 supports light source 11.Base portion 17 keeps light source 11.
Internal thread hole 703 is the screwed hole for holding member 15 to be fixed on to base housing 701.
Base portion 17 has axis hole 704x and elongated hole 705x relative to drive division 16x.In addition, base portion 17 is relative to driving Portion 16y has axis hole 704y and elongated hole 70y.Axis hole 704 keeps the feed screw 602 of drive division 16.Elongated hole 705 keeps drive division The support shaft 606 of 16 cam part 603.That is, feed screw 602 passes through axis hole 704.Also, support shaft 606 passes through elongated hole 705。
Also, base portion 17 can have the base in fixed drive source 601.
<The action of headlamp module 1>
Fig. 5 and Fig. 6 is the figure of the action of the Y direction for the drive device for showing headlamp module 1.Fig. 5 and Fig. 6 explanations are logical Crossing makes projection lens 13 be moved along Y direction, and the action for moving the luminous intensity distribution of headlamp module 1.In addition, in order to simplify It is bright, headlamp module 1 is shown with the two-dimensional representation of YZ planes.Also, eliminate the lens mount housing 401 of lens mount 14, X-axis Adjust axle 402 and internal thread hole 404.
Fig. 5 is that projection lens 13 configures figure at common position.Luminous intensity distribution when " usual " refers to irradiate vehicle straight trip The situation of the light of pattern.Also, it is the situation for not carrying especially heavy article etc. in vehicle.That is, the posture of vehicle is horizontal 's." common position " is also referred to as " reference position ".
Assembled from the light that light source 11 projects by lens 201.In Fig. 5 and Fig. 6, for example, from light source 11 project light to Relative to+inclined direction the injection of Z-direction direction-Y direction.The light projected from light source 11 incides light guide member 202.
Light guide member 202 is the part to form light distribution patterns.The part of the light of light guide member 202 is incided directly from leading The exit facet of light part 202 projects.Also, incide side quilt of the part in light guide member 202 of the light of light guide member 202 Reflection, direct of travel are changed to+Y direction.In Figure 5, the side for making the part reflection of light is the-side of Y direction side.
The light projected from optical component 12 is for example irradiated to front more than the 10m in+Z-direction by projection lens 13 On X/Y plane (shadow surface 9).
Projection lens 13 constrains the movement of Z-direction and the rotation of RX direction of principal axis by holding member 15.Also, project Lens 13 adjust axle 403 to determine the position of Y direction by drive division 16x cam path 605x and the Y-axis of lens mount 14.Throw The movement of the Z-direction for the cam shell 604x that lens 13 pass through drive division 16x is penetrated to move in the Y-axis direction.
The figure that Fig. 6 is projection lens 13 when being moved by drive division 16x from common position to+Y direction.Since light source 11 to project the movement of light etc. played untill being projected from optical component 12 identical with Fig. 5, thus omits the description.That is, from light source 11 Movement to the light of the exit facet of optical component 12 etc. is identical with Fig. 5.
Drive division 16x cam shell 604x moves relative to Fig. 5 position to+Z-direction.Thus, Y-axis adjustment axle 403 are guide to+Y direction movement from cam path 605x.When Y-axis adjusts axle 403 and moved to+Y direction, projection lens 13 Also to+Y direction movement.Also, the light projected from optical component 12 incides projection lens 13 relative to Fig. 5 situation The position deviateed to-Y direction.In this case, the picture on shadow surface 9 moves relative to Fig. 5 situation to+Y direction.
That is, by making projection lens 13 move in the Y-axis direction, the luminous intensity distribution on shadow surface 9 moves in the Y-axis direction.Example Such as, in the headlamp module 1 of embodiment 1,5 degree are turned forward and at caused front 25m by vehicle in order to correct The offset of the optical axis of projection lens 13, make projection lens 13 to+Y direction movement 1.5mm~2mm.That is, in order to correct Turned forward 5 degree of offsets and the luminous intensity distribution at caused front 25m by vehicle, projection lens 13 is moved to+Y direction 1.5mm~2mm.
As Fig. 5 and it is illustrated in fig. 6, when cam part 603x moves to+Z-direction, Y-axis adjustment axle 403 To+Y direction movement.When Y-axis adjusts axle 403 and moved to+Y direction, lens mount 14 moves to+Y direction.In this feelings Under condition, lens mount 14 is prevented from being moved in X-direction and Z-direction by holding member 15.Also, matching somebody with somebody on shadow surface 9 Light moves to+Y direction.
On the other hand, when cam part 603x moves to-Z-direction, Y-axis adjusts axle 403 and moved to-Y direction, but Do not illustrate.When X-axis adjusts axle 402 and moved to-Y direction, lens mount 14 moves to-Y direction.In this case, Prevent lens mount 14 from being moved in X-direction and Z-direction also by holding member 15.Also, the luminous intensity distribution on shadow surface 9 To-Y direction movement.
Cam part 603y also carries out acting with cam part 603x identicals.
Fig. 7 and Fig. 8 is the figure of the action of the X-direction for the drive device for showing headlamp module 1.Fig. 7 and Fig. 8 explanations are logical Crossing makes projection lens 13 be moved along X-direction, and the action for moving the luminous intensity distribution of headlamp module 1.In addition, in order to simplify It is bright, headlamp module 1 is shown with the two-dimensional representation of ZX planes.Also, eliminate the lens mount housing 401 of lens mount 14, Y-axis Adjust axle 403 and internal thread hole 404.
Fig. 7 shows that projection lens 13 configures the situation in common position.Fig. 8 shows that projection lens 13 passes through drive division States of the 16y to the movement of-X-direction.
As shown in figure 8, when cam part 603y moves to+Z-direction, X-axis adjusts axle 402 and moved to-X-direction. When X-axis adjusts axle 402 and moved to-X-direction, lens mount 14 moves to-X-direction.In this case, maintaining part is passed through Part 15 prevents lens mount 14 from being moved in Y direction and Z-direction.Also, the luminous intensity distribution on shadow surface 9 moves to-X-direction It is dynamic.
On the other hand, when cam part 603y moves to-Z-direction, X-axis adjusts axle 402 and moved to+X-direction, but Do not illustrate.When X-axis adjusts axle 402 and moved to+X-direction, lens mount 14 moves to+X-direction.In this case, Prevent lens mount 14 from being moved in Y direction and Z-direction also by holding member 15.Also, the luminous intensity distribution on shadow surface 9 to + X-direction moves.
As described above, determine headlamp module 1 in shadow surface relative to the position of optical component 12 according to lens mount 14 The position of luminous intensity distribution on 9.
As described above, lens mount 14 is by being held in holding member 15, and it is supported for relative to the traveling side with light It can be moved to (Z-direction) vertical face (X/Y plane) to multiple directions.That is, lens mount 14 is supported by holding member 15 For that can be moved on the face (X/Y plane) vertical with the direct of travel of light (Z-direction) to multiple directions.In embodiment 1 In, holding member 15 is, for example, parallel spring.In addition, " multiple directions " refer to X-direction and Y direction in embodiment 1.
Also, position of the lens mount 14 on X/Y plane adjusts axle 402 by X-axis, Y-axis adjusts axle 403 and drive division 16x, 16y is determined.In embodiment 1, drive division 16x, 16y are, for example, cam mechanism.That is, position of the lens mount 14 on X/Y plane Determined by X-axis adjustment axle 402, Y-axis adjustment axle 403 and cam path 605x, 605y.
That is, the headlamp module 1 of embodiment 1 can make to be held in lens mount by holding member 15 and drive division 16 Projection lens 13 on 14 moves in parallel relative to X/Y plane.In addition, drive division 16x, 16y can also use linkage etc..
For example, in the case of the construction that can be moved using realizations such as leading axles to multiple directions, because of the vibration of vehicle Caused by sliding surface abrasion or the penalty such as the mutual set of the sliding surface because of caused by thermal deformation turn into problem. That is, the penalty of sliding surface turns into problem.
Particularly the optical component as projection lens 13 needs positioning precision.Therefore, moving part is in order to take cunning Move countermeasure and maximize.That is, it is stranded with the research and development of device of small-sized luminous intensity distribution turning to target, control is suitable for headlamp module 1 It is difficult.
Headlamp module 1 can make the phase of projection lens 13 by using the holding member 15 including parallel spring 15a, 15b Moved in parallel for X/Y plane, and do not have slipper.
The holding member 15 of embodiment 1 utilizes one group of leaf spring 15a, 15b constraint RX direction of principal axis, the RY as parallel spring The movement of the direction of rotation in direction of principal axis and RZ directions.In embodiment 1, as one of holding member 15a, 15b, with one group Leaf spring illustrates.
Also, holding member 15 is relative to the translational motion of projection lens 13 and the X-direction and Y direction of lens mount 14 With the independent free degree.That is, by holding member 15, projection lens 13 and lens mount 14 can be in X-direction or Y-axis sides Translate up motion." translational motion " refers to the fortune that each point that the rigid body is formed in rigid body etc. moves in parallel to same direction It is dynamic.Therefore, lens mount 14 can freely move in the state of the optical axis of holding projection lens 13 is parallel with Z axis on X/Y plane It is dynamic.
<Headlamp 95>
The headlamp module 1 minimized as described above is modular and is used as headlamp.The headlamp used in vehicle Multiple headlamp modules can be carried, the luminous intensity distribution of each headlamp module is overlapping and form foregoing light distribution patterns.That is, headlamp By modularization and more lamps.The light distribution patterns of the driving more suitable for driver can be formed by the headlamp of more lamps.And And in terms of the aesthetic appearance and from the point of view of in terms of efficiency, popularized by the headlamp of more lamps.
Fig. 9 is the structure chart for showing to be mounted with the structure of headlamp module 1a, 1b, 1c headlamp 95.Headlamp 95 has There are cover 96 and housing 97.Cover 96 makes of transparent material.Housing 97 is configured in the inside of car body.Table of the configuration of cover 96 in car body Face part, and show in the outside of car body.Cover 96 configuration housing 97+Z-direction (front).
Headlamp module 1a, 1b, 1c have been stored in the inside of housing 97.In fig.9, it is before having stored 3 as example Illuminator module 1a, 1b, 1c.In addition, the number of the headlamp module 1 used in headlamp is not limited to 3.Headlamp module 1 Number can be 1 or more than 3.
Headlamp module 1a, 1b, 1c is arranged in the inside of housing 97 along X-direction.In addition, headlamp module 1a, 1b, 1c arrangement mode are not limited to the mode arranged along X-direction.In view of design model or function etc., headlamp module 1a, 1b, 1c can also be in staggered configuration in Y direction or Z-direction.
The front of vehicle is injected to through cover 96 from the light that headlamp module 1a, 1b, 1c are projected.In fig.9, penetrated from cover 96 The light gone out is overlapping with the light from adjacent headlamp module 1a, 1b, 1c injection and forms a light distribution patterns.
Cover 96 is set to protect headlamp module 1a, 1b, 1c to be not subjected to wind and rain or dust etc..That is, 96 are covered Prevent wind and rain or dust etc. from entering housing 97.But headlamp module 1a, 1b, 1c inside are protected for projection lens 13 Part be not subjected to the construction of wind and rain or dust etc., it is not necessary to cover 96 is especially set.
In addition, in fig.9, headlamp module 1a, 1b, 1c are stored in the inside of housing 97.But housing 97 need not It is box shape.Housing 97 can also be made up of framework etc., using the knot by headlamp module 1a, 1b, 1c fixation on the frame Structure.
Figure 10 is the schematic diagram for showing the irradiation area 91,92 on the shadow surface 9 of headlamp module 1a, 1b, 1c irradiation.Line V-V represents the vertical line in the opening position of vehicle.Also, line H-H represents the horizontal line in the opening position of vehicle.In Figure 10 In, vehicle travels on left-lane.Label 93 represents the end of road.
In Fig. 10, such as line V-V is vertical with road surface.Also, line H-H is parallel with road surface.
In Fig. 10, the wider scope in front of the irradiation area 91 to vehicle is illuminated.Irradiation area 91 is in level side To longer, shorter in vertical direction.Irradiation area 91 includes the part that vehicle advances, both sides of the road and to the part of car.According to Penetrate the region that region 91 is the light distribution patterns entirety of headlamp 95.
On the other hand, irradiation area 92 is illuminated to the narrower range of the middle body of vehicle front.Irradiation area 91 It is longer in the horizontal direction, shorter in vertical direction.Irradiation area 92 includes the part that vehicle is advanced.Irradiation area 92 is headlamp High illumination region in 95 light distribution patterns.
Irradiation area 91,92 is each headlamp module 1a, 1b, 1c light distribution patterns.For example, headlamp module 1a, 1c is led to Cross two light distribution patterns of arrangement and irradiation area 91 is irradiated.Headlamp module 1b is irradiated to irradiation area 92.
It can be seen from Figure 10, headlamp module 1b to the immediate vicinity of light distribution patterns on shadow surface 9, dead line it is immediately below Irradiation area 92 be irradiated.To the means suitable highest illumination in irradiation area.On the other hand, headlamp module 1a, 1c are irradiated to irradiation area 91 wider in shadow surface 9.
The exit facet of headlamp module 1b light guide member 202 is, for example, vertical 1.0mm (Y direction), horizontal 3.0mm (X-axis sides To) rectangular shape.Also, the exit facet of the light guide member 202 of headlamp module 1a, 1c is, for example, vertical 2.0mm, horizontal stroke 15.0mm rectangular shape.
Headlamp module 1b and the projection lens of headlamp module 1a, 1c 13 are identicals.Therefore, if from light guide member The distance of 202 exit facet to projection lens 13 is all identical, then it is identical to be exaggerated the enlargement ratio projected to when on shadow surface 9. Therefore, on shadow surface 9, and the exit facet and headlamp module 1a, 1c of headlamp module 1b light guide member 202 are being kept The area of exit facet of light guide member 202 be when irradiated on shadow surface 9 in the state of brightness ratio.That is, light guide member 202 The area of exit facet when brightness ratio be exaggerated be irradiated on shadow surface 9.
If the output of the light of headlamp module 1a, 1b, 1c light source 11 is identical, headlamp module 1b is in shadow surface 9b On per unit area illumination it is higher than headlamp module 1a, 1c.Because the area of headlight for automobile module 1b exit facet Less than the area of the exit facet of headlamp module 1a, 1c.
Headlamp module 1b in the central area of light distribution patterns on shadow surface 9b, the irradiation area immediately below of dead line 92 are irradiated.Headlamp module 1b irradiates the part for being required highest illumination.Headlamp module 1a, 1c in shadow surface 9b compared with Wide irradiation area 91 is irradiated.Headlamp module 1a, 1c effectively illuminates the wider of shadow surface 9 with overall relatively low illumination Wide region.
Thus, headlamp 95 uses multiple headlamp module 1a, 1b, 1c, and respective light distribution patterns are added and form the phase The light distribution patterns of prestige.Here, " expectation " is such as referring to meet road traffic regulation.
Headlamp module 1a, 1b, 1c can share the optical component in addition to light guide member 202.In the past to each preceding photograph Lamp module devises optimal optical system.Therefore, optical component is difficult to share.The headlamp 95 of embodiment 1 can be each The optical component in addition to light guide member 202 is shared between individual headlamp module 1a, 1b, 1c.Because it can at least pass through The shape of light guide member 202 forms light distribution patterns.That is, different light distribution patterns can be formed by only changing light guide member 202.
Therefore, headlamp 95 can reduce the species of optical component.Also, headlamp 95 can be reduced to optical component Management.Also, headlamp 95 can reduce manufacturing cost.
Also, moved by making projection lens 13 relative to light guide member 202 on left and right directions (X-direction), can The irradiation area 92 for making to be irradiated from the light that headlamp module 1b is projected moves in the horizontal direction.
That is, moved on left and right directions (X-direction), can made relative to light guide member 202 by making projection lens 13 Move in the horizontal direction in high illumination region in light distribution patterns.Light guide member 202 does not move relative to light source 11.Therefore, lead to Crossing makes projection lens 13 be moved relative to light source 11 on left and right directions (X-direction), can make the high illumination in light distribution patterns Move in the horizontal direction in region.
Thus, the illumination of the watching area of driver's observation in driving can be improved in turning driving.
Headlamp module 1 can suppress can to make luminous intensity distribution along the vertical direction or the structure of left and right directions movement it is large-scale Change.
In addition, in embodiment above-mentioned or described later, use " parallel " and " vertical " etc. be present and represent between part Position relationship or component shape term situation.These terms represent to include considering in tolerance or the assembling in manufacture The scope of deviation etc..Therefore, the content for representing position relationship or component shape between part is described in detail in the claims In the case of, represent the scope for including considering tolerance or the deviation in assembling etc. in manufacture.
Embodiment 2
In embodiment 2, the drive division 16x illustrated in embodiment 1 an and drive division 16y part is configured to One.By the way that the drive division 16x shown in embodiment 1 and a drive division 16y part are integrally constituted, can further press down System can make the luminous intensity distribution of headlamp module along the vertical direction or the maximization of the structure of left and right directions movement.
Figure 11 is the stereogram of the headlamp module 2 of embodiment 2.Also, Figure 12 is the headlamp module of embodiment 2 2 exploded perspective view for eliminating a part of structure.
As shown in figure 11, the headlamp module 2 of embodiment 2 has light source 11, projection lens 13, holding member 15, tune Nodal axisn 40, drive division 50.Headlamp module 2 can have base portion 18, optical component 202, lens mount 19.
Base portion 18 fixes light source 11.Optical component 202 is fixed in base portion 18.Projection lens 13 is incident from optics The light of the injection of part 12 simultaneously projects to opposite side.Lens mount 19 fixes projection lens 13.Holding member 15 protects lens mount 19 Hold in base portion 18.Adjustment axis 40 makes lens mount 19 in the face vertical with the optical axis of projection lens 13 (be that X-Y is put down in fig. 11 Face) on move.Drive division 50 drives adjustment axis 40.That is, the incident light from the injection of light source 11 of projection lens 13, will as incident light Incident light projects as projection light to the front of vehicle.
Illustrated in addition, though below distinguishing adjustment axis 40 with drive division 50, but adjustment axis 40 is included in driving In portion 50.That is, drive division 50 includes adjustment axis 40.
Identical with the headlamp module 1 of embodiment 1, the headlamp module 2 of embodiment 2 has light source 11, optical section Part 12, projection lens 13, holding member 15 and drive division 50 (including adjustment axis 40).Headlamp module 2 can have lens mount 19 and base portion 18.
In embodiment 2, the mechanism and embodiment 1 that are driven to the lens mount 19 of fixed projection lens 13 are not Together.Therefore, in embodiment 2, the drive divisions 16 of alternate embodiments 1 and use this point of drive division 50 and using regulation This point of axle 40 is different from embodiment 1.
That is, headlamp module 2 is that the drive division 16 of headlamp module 1 is replaced into drive division 50.Therefore, lens mount 19 Structure is different from lens mount 14.Also, headlamp module 2 also has projection lens side connection member 41.Preceding photograph in addition The inscape of lamp module 2 is identical with headlamp module 1.
According to the structure of drive division 50, a part for the structure of lens mount 19, base portion 18 and drive division 50 is with implementing The structure of the lens mount 19, base portion 18 and the drive division 16 that illustrate in mode 1 is different.But structure in addition is and reality Apply the identical structure of mode 1.That is, in embodiment 2, it is identical knot to have with the structure of the identical label of embodiment 1 Structure, thus omit the description.
Inscape with the identical headlamp module 2 of headlamp module 1 is light source 11 (LED light source 101 and radiator 102), optical component 12 (lens 201 and light guide member 202), projection lens 13 and holding member 15 (parallel spring 15a, 15b).In addition, parallel spring 15a, 15b are to maintain one of part.
<Lens mount 19>
Accordingly illustrate lens mount 19 with lens mount 14, lens mount 19 has lens mount housing and fitting portion 405.But In the following description, illustrated lens mount housing as lens mount 19.Therefore, lens mount 19 has fitting portion 405.
Lens mount 19 is to maintain the part of projection lens 13.
Lens mount 19 is frame shape.
Lens mount 19-Y direction side is fixed with projection lens side connection member 41.Projection lens side connection member 41 It is connected with rotary shaft 40.It is integrated in addition, projection lens side connection member 41 can also be formed with lens mount 19.Also, project Lens side connection member 41 can also be formed directly into projection lens 13.
Moved by adjustment axis 40, projection lens side connection member 41 moves.Also, it is fixed in the projection of lens mount 19 Lens 13 move.Lens mount 19 is installed in base portion 18 by holding member 15.
As it is explained in detail hereinafter, adjustment axis 40 is moved in the X-axis direction by little gear 22a rotation.Also, adjustment axis 40 Rotated by little gear 32a rotation on RX direction of principal axis.
As described in Embodiment 1, holding member 15 has the holding member 15a and maintaining part as leaf spring Part 15b.Therefore, lens mount 19 can be moved up by holding member 15 relative to base portion 18 in X-direction or Y direction It is dynamic.
Projection lens 13 is maintained on lens mount 19.Light source 11 is maintained in base portion 18.Therefore, projection lens 13 It can be moved by holding member 15 relative to light source 11 in X-direction or Y direction.
<Base portion 18>
As shown in figure 12, on the face (with YZ plane parallel side) vertical with X-axis of base portion 18, in base portion 18 - Z-direction is provided with the internal thread hole 708 being used for using the fixed holding member 15 such as screw.In the top of base portion 18 (+Y-axis Direction) be fixed with optical component 12, optical component 12-Z-direction is fixed with light source 11.
That is, base portion 18+side of X-axis side on-Z axis side is provided with internal thread hole 708.Also, equally in pedestal Portion 18-side of X-axis side on-Z axis side is provided with internal thread hole 708.The internal thread hole 703 of internal thread hole 708 and pedestal 17 It is identical.Base portion 18+side of the side of X-axis side and-X-axis side is, for example, the face vertical with X-axis.
Also, light source 11 and optical component 12 are installed in base portion 18.Light source 11 and optical component 12 and embodiment 1 Base portion 17 be equally installed in base portion 18.
That is, the base portion 18 of embodiment 2 is formed as eliminating axis hole 704 and length in the base portion 17 of embodiment 1 The structure in hole 705.
<Adjustment axis 40>
Figure 13 is to show adjustment axis 40 and the stereogram of the structure of drive division 50 about shown in Figure 11.Figure 14 is to show figure The top view of adjustment axis 40 and drive division 50 shown in 13.That is, Figure 14 is from the adjustment axis 40 shown in Figure 11 from+Y direction And the figure of drive division 50.
As shown in figure 13, there is adjustment axis 40 the 1st driving transfer part 27 and the 2nd to drive transfer part 28.That is, the 1st driving passes Pass portion 27 and transmit the driving force from drive division 50.1st driving transfer part 27 transmits the driving force from the 1st drive division 140.And And the 2nd drives transfer part 28 to transmit the driving force from drive division 50.2nd driving transfer part 28, which is transmitted, comes from the 2nd drive division 141 driving force.
1st driving transfer part 27 is formed has concaveconvex shape 37 on the direction of the central shaft (rotary shaft) 43 of adjustment axis 40 Rack.Central shaft 43 is the axle of the pivot of adjustment axis 40.Different from common rack, concaveconvex shape 37 is not in adjustment axis Describe spiral on the direction of 40 central shaft 43, but the recessed of gear-like is asymmetrically formed on whole periphery around central shaft 43 It is convex.
That is, different from common rack, concaveconvex shape 37 is formed with concaveconvex shape on the whole periphery of adjustment axis 40. Also, it is different from cutting out the external screw thread that spiral helicine groove forms, the groove of concaveconvex shape 37 on the whole periphery of adjustment axis 40, Identical position is located on the direction of the central shaft 43 of adjustment axis 40.That is, the groove of concaveconvex shape 37 is passing through the flat of central shaft 43 It is in identical shape on face.That is, concaveconvex shape 37 is the rotary body shape for rotary shaft with central shaft 43.Also, concaveconvex shape 37 for example in gear tooth shape.
In fig. 14, when in ZX plan views, rack-and-pinion is formed by little gear 22a and concaveconvex shape 37." tooth Rack-and-pinion " be by revolving force be transformed to linear motion mechanism, be by be referred to as little gear small-bore circular gear and The rack combination of formation cutting (with teeth) forms on flat rod.When applying revolving force to little gear, rack edge Horizontal direction moves.
In addition, according to the groove shape of above-mentioned concaveconvex shape 37, it is small even if adjustment axis 40 is rotated centered on central shaft 43 Gear 22a does not also rotate.
The direction (X-direction) of central shaft 43 (in fig. 13 with single dotted broken line shown) of the adjustment axis 40 along adjustment axis 40 is moved It is dynamic, and rotated around central shaft 43.Specific action on adjustment axis is described in detail later.
Adjustment axis 40 has connecting portion 20.
Connecting portion 20 is connected with projection lens side connection member 41.Projection lens side connection member 41 is for example installed on lens Frame 19.
Connecting portion 20 has the 1st holding section 70 and core shift portion 30.1st holding section 70 relative to adjustment axis 40 central shaft 43 Direction engage with projection lens side connection member 41." engaging ", which refers to key element and key element being connected with each other, to be combined.
Core shift portion 30 in the position different from the central shaft 43 of adjustment axis 40 there is central shaft 44 (to be shown in fig. 13 with dotted line Go out).Central shaft 43 is parallel with central shaft 44.Therefore, when adjustment axis 40 rotates, core shift portion 30 is entered with central shaft 43 for rotary shaft Row rotation.The radius of turn in core shift portion 30 is the core shift amount between central shaft 43 and central shaft 44.
In embodiment 2, adjustment axis 40 has the (flange of the 1st holding section 70 in the both sides of the X-direction in core shift portion 30 Portion).Also, the 1st holding section 70 is bigger than the diameter of adjustment axis 40 discoid." disk " is circular and flat shape.1st Holding section 70 is the limiting unit limited movable area of the adjustment axis 40 on the direction of central shaft 43.
<Drive division 50>
Drive division 50 drives adjustment axis 40.Drive division 50 has the 1st drive division 140 and the 2nd drive division 141.1st drive division 140 drive adjustment axis 40 along X-direction.2nd drive division 141 driving adjustment axis 40 is entered centered on the central shaft 43 of X-direction Row rotation.
As shown in FIG. 13 and 14, the 1st drive division 140 has the 1st motor 25 and the 1st reduction part 130.1st reduction part 130 The driving force of 1st motor 25 is passed into adjustment axis 40.1st reduction part 130 adjusts the driving force of the 1st motor 25.
1st reduction part 130 has the 1st worm gear 24 and two-stage gear 22.1st worm gear 24 is fixed in the rotation of motor 25 Axle.The driving force of 1st worm gear 24 is passed to adjustment axis 40 by two-stage gear 22.
Two-stage gear 22 has gear wheel 22b and little gear 22a.Gear wheel 22b engages with the 1st worm gear 24.Little gear 22a Contacted with the 1st driving transfer part 27 of adjustment axis 40.That is, little gear 22a engages with the 1st driving transfer part 27 of adjustment axis 40. In addition, in two-stage gear 22, gear wheel 22b and little gear 22a have common axis of rotation, but do not illustrate.Also, small tooth Wheel 22a is integrally formed with gear wheel 22b in a rotational direction.
2nd drive division 141 has the 2nd motor 35 and the 2nd reduction part 131.2nd reduction part 131 is by the driving of the 2nd motor 35 Power passes to adjustment axis 40.2nd reduction part 131 adjusts the driving force of the 2nd motor 35.
2nd reduction part 131 has the 2nd worm gear 34 and two-stage gear 32.2nd worm gear 34 is fixed in the rotation of motor 35 Axle.The driving force of 2nd worm gear 34 is passed to adjustment axis 40 by two-stage gear 32.
Two-stage gear 32 has gear wheel 32b and little gear 32a.Gear wheel 32b engages with the 1st worm gear 34.Little gear 32a Contacted with the 2nd driving transfer part 28 of adjustment axis 40.That is, little gear 32a engages with the 2nd driving transfer part 28 of adjustment axis 40. In addition, in two-stage gear 32, gear wheel 32b and little gear 32a have common axis of rotation, but do not illustrate.Also, small tooth Wheel 32a is integrally formed with gear wheel 32b in a rotational direction.
The headlamp module 2 of embodiment 2 has the 1st reduction part 130 and the 2nd reduction part 131.1st reduction part 130 is located at Between 1st motor the 25 and the 1st driving transfer part 27.2nd reduction part 131 located at the 2nd motor the 35 and the 2nd driving transfer part 28 it Between.Therefore, drive division 50 can adjust the torque required for the responsiveness of projection lens 13 and the action of projection lens 13.
<Projection lens side connection member 41>
Figure 15 is the figure for roughly showing projection lens side connection member 41 and the structure of connecting portion 20.Connecting portion 20 is with throwing Lens side connection member 41 is penetrated to connect.
As shown in figure 15, projection lens side connection member 41 extends along X-direction." extension " refers to extend.Here, projection Lens side connection member 41 extends along X-direction.
Projection lens side connection member 41 is in-unlimited U the shape of Z-direction in YZ planes." U shape " is, for example, U-shaped.In fig.15, the part at the angle of U-shaped is formed as right angle." U shape " is for example the absence of a line of square Shape.In fig.15, projection lens side connection member 41 is the barrel shape that square with the axis cross sectional shape is rectangle, and is in go The shape of a side is fallen.
As shown in figure 15, projection lens side connection member 41 has the part (plate-like portion 41a, 41b, 41c) of 3 tabulars. Plate-like portion 41a and plate-like portion 41b are configured in parallel to each other.In fig.15, plate-like portion 41a and plate-like portion 41b are relative to ZX planes Abreast configure.Plate-like portion 41c vertically configures relative to plate-like portion 41a, 41c.In fig.15, plate-like portion 41c is relative to XY Plane abreast configures.Also, plate-like portion 41c connecting plate-shapeds portion 41a and plate-like portion 41b.The part opposed with plate-like portion 41c into For opening portion.Plate-like portion 41a, 41b, 41c distinguish rectangular shaped.The groove 52 of U shape is by plate-like portion 41a, 41b, 41c bag The part enclosed.
In fig.15, the width W of the Y direction of the groove 52 of the U shape of projection lens side connection member 41 is configured to adjust The value that core shift portion 30 (the diameter phi A in section) in the connecting portion 20 of nodal axisn 40 can enter.That is, width W is relative to core shift portion 30 diameter phi A, the gap for the degree that can be rotated with core shift portion 30 in the groove 52 of U shape.
The depth D of the Z-direction of the groove 52 of the U shape of projection lens side connection member 41 is set to be greater than core shift portion 30 core shift amount E." core shift amount E " refers to the distance of the central shaft 43 of adjustment axis 40 and the central shaft 44 in core shift portion.
Thus, though adjustment axis 40 from core shift portion 30 relative to adjustment axis 40 positioned at the position of+Z-direction to RX direction of principal axis It is rotated by 90 °, core shift portion 30 does not appear in the outside of the groove 52 of U shape yet.In addition, in fig.15, central shaft 43 and core shift The central shaft 44 in portion is parallel.
The length L of the X-direction of the groove 52 of the U shape of projection lens side connection member 41 is to be controlled in be arranged at partially Size in the distance B of 1st holding section, the 70 mutual inner side at the both ends of core 30.That is, distance B is more than length L.
Core shift portion 30 is incorporated in the inside of the groove 52 of the U shape of projection lens side connection member 41.Thus, even Core shift portion 30 along X-direction move when, core shift portion 30 also will not be de- from the groove 52 of the U shape of projection lens side connection member 41 Go out.Also, core shift portion 30 moves smoothly projection lens side connection member 41.
<The action of drive division 50>
Below, action, the regulation carried out with the action of drive division 50 of drive division 50 are illustrated according to Figure 16 to Figure 19 The action of axle 40 and the action of projection lens 13.
Figure 16 is illustrated in the case where the 1st drive division 140 drives adjustment axis 40, direction of the adjustment axis 40 along central shaft 43 The figure of mobile action.
When the 1st motor 25 rotates, the 1st worm gear 24 rotates around X-axis.1st worm gear 24 is fixed in the rotation of the 1st motor 25 Axle.The rotary shaft of 2nd motor 25 abreast configures with X-axis.When the 1st worm gear 24 rotates, gear wheel 22b rotations.Gear wheel 22b Engaged with the 1st worm gear 24.Gear wheel 22b rotary shaft abreast configures with Y-axis.
With gear wheel 22b rotation, little gear 22a rotations.When little gear 22a rotates, the 1st driving transfer part 27 edge The direction movement of the central shaft 43 of adjustment axis 40.1st driving transfer part 27 engages with little gear 22a.That is, the profit of the 1st drive division 140 With the structure of rack-and-pinion by linear motion that little gear 22a rotation transformation is adjustment axis 40.
By the movement of the 1st driving transfer part 27, direction of the adjustment axis 40 along central shaft 43 is moved.In addition, in order to adjust The moving direction of nodal axisn 40 is set to+X-direction or-X-direction, select the direction of rotation of the 1st motor 25.
Moved by direction of the adjustment axis 40 along central shaft 43, connecting portion 20 moves along X-direction.Also, projection lens Side connection member 41 moves along X-direction.That is, projection lens side connection member 41 is in the shape clamped by a pair of the 1st holding sections 70 Moved under state along X-direction.Projection lens side connection member 41 is connected with connecting portion 20.Pass through projection lens side connection member 41 Moved along X-direction, projection lens 13 can be made to be moved along X-direction.
In this case, the 2nd drive transfer part 28 in the state of being engaged with little gear 32a along the direction of central shaft 43 It is mobile.In the case where the 2nd driving transfer part 28 and little gear 32a are horizontal gear, by the 2nd driving transfer part 28 in central shaft Movement on 43 direction, little gear 32a do not rotate.
Figure 17 (A) and Figure 17 (B) are that explanation is moved to make headlamp module 2 by adjustment axis 40 along X-direction The figure of the action of luminous intensity distribution movement.In addition, for the purpose of simplifying the description, headlamp module 2 is shown with the two-dimensional representation of XZ planes.And And in Figure 17 (A) and Figure 17 (B), in headlamp module 2 omit projection lens 13, holding member 15, lens 201, Structure beyond light guide member 202 and light source 11 is shown.
Figure 17 (A) is that projection lens 13 configures figure at reference position." reference position " refers to the appearance for irradiating vehicle The situation of the light of light distribution patterns when gesture is flatly kept straight on.
Assembled from the light that light source 11 projects by lens 201.Therefore, angle of divergence when being projected from lens 201 be less than from Angle of divergence when light source 11 projects.In Figure 17 (A) and Figure 17 (B), such as from the light that light source 11 projects to+Z-direction Project.
The light projected from light source 11 incides light guide member 202.The light projected from lens 201 incides light guide member 202. The part for inciding the light of light guide member 202 directly projects from the exit facet of light guide member 202.When being observed on ZX faces, The light for inciding light guide member 202 does not reflect in the side of light guide member 202.That is, when being observed on ZX faces, leaded light is incided The light of part 202 directly projects from light guide member 202.
The light projected from optical component 12 is for example through front more than the 10m in+Z-direction of projection lens 13 X/Y plane It is imaged on (shadow surface 9).In addition, the movement of these light is identical with embodiment 1.
Figure 17 (B) is to make projection lens 13 mobile from reference position to-X-direction and make luminous intensity distribution to+X-direction movement When figure.
It is assumed that when vehicle is turned around the corner, the situation of the corner of this vehicle advance will be illuminated.
The driving transfer part 27 of 1st drive division 140 driving the 1st (not shown), projection lens side connection member 41 and projection are saturating Mirror 13 moves to-X-direction.
For example, as described in Embodiment 1,5 degree are turned forward and before caused by vehicle in order to correct The offset of the optical axis of projection lens 13 at square 25m, headlamp module 2 make projection lens 13 to+Y direction movement 1.5mm ~2mm.Based on same consideration, if making projection lens 13 to-X-direction movement 1.5mm~2mm, in front 25m Locate luminous intensity distribution to-X-direction movement about 2m.
Figure 18 is to illustrate that adjustment axis 40 is around central shaft in the case of the driving transfer part 28 of the 2nd drive division 141 driving the 2nd (rotary shaft) 43 carries out the figure of the situation of spinning movement.
When the 2nd motor 35 rotates, the 2nd worm gear 34 rotates around Y-axis.2nd worm gear 34 is fixed in the rotation of the 2nd motor 35 Axle.The rotary shaft of 2nd motor 35 abreast configures with Y-axis.When the 2nd worm gear 34 rotates, the gear wheel that is engaged with the 2nd worm gear 34 32b rotates.Gear wheel 32b engages with the 2nd worm gear 34.Gear wheel 32b rotary shaft abreast configures with X-axis.
With gear wheel 32b rotation, little gear 32a rotations.Little gear 32a rotary shaft abreast configures with X-axis. When little gear 32a rotates, the 2nd driving transfer part 28 rotates around the central shaft 43 of adjustment axis 40.2nd driving transfer part 28 and small tooth Take turns 32a engagements.
The rotary shaft of 2nd driving transfer part 28 is consistent with central shaft 43.2nd driving transfer part 28 is horizontal gear.Little gear 32a is horizontal gear.Horizontal gear is that the gear that tooth forms abreast is cut out with rotary shaft.
By the rotation of the 2nd driving transfer part 28, core shift portion 30 rotates around central shaft 43.The phase of central shaft 44 in core shift portion 30 For the eccentric core shift amount E of central shaft 43.Therefore, core shift portion 30 is carried out using core shift amount E as radius, centered on central shaft 43 Rotation.In addition, " bias " refers to that position is off-center." core shift " is used with being looked like with " bias " identical.
By the spinning movement in core shift portion 30, projection lens side connection member 41 moves in the Y-axis direction.Pass through adjustment axis 40 rotations, core shift portion 30 rotates around central shaft 43.Core shift portion 30 is embedded in the groove 52 of projection lens side connection member 41.In core shift Portion 30 around central shaft 43 rotate when, projection lens side connection member 41 moves in the Y-axis direction.Pass through projection lens side connecting portion Part 41 moves, and can move projection lens 13.In addition, rotation of the position of the Y direction of projection lens 13 according to motor 35 Angle is adjusted.
In this case, the 1st driving transfer part 27 in the state of being engaged with little gear 22a centered on central shaft 43 Rotation.But because concaveconvex shape 37 is not spiral-shaped, thus little gear 22a will not pass through the rotation of the 1st driving transfer part 27 Then rotate.
Here, as shown in figure 18, in embodiment 2, the 2nd driving transfer part 28 is that have to revolve with the identical of central shaft 43 The horizontal gear of rotating shaft.The facewidth C of the X-direction of 2nd driving transfer part 28 is set to be greater than the little gear 32a facewidth.
Therefore, though adjustment axis 40 by the 1st drive division 140 along X-direction move when, engagement also cannot come off.2nd drives The facewidth C of the X-direction of dynamic transfer part 28 is for example contemplated to be the length of the width of the drive area of the X-direction comprising adjustment axis 40 Degree.
Figure 19 (A) and Figure 19 (B) are that explanation makes headlamp module 2 by core shift portion 30 to the movement of+Y direction The figure of the action of luminous intensity distribution movement.In addition, for the purpose of simplifying the description, headlamp module 2 is shown with the two-dimensional representation of YZ planes.And And in Figure 19 (A) and Figure 19 (B), in headlamp module 2 omit projection lens 13, holding member 15, lens 201, Structure beyond light guide member 202, light source 11, side connection member 41 and adjustment axis 40 is shown.
Figure 19 (A) is that projection lens 13 configures figure at reference position.
Assembled from the light that light source 11 projects by lens 201.In Figure 19 (A) and Figure 19 (B), such as from light source 11 light projected are tilted in+Z-direction and projected to-Y direction.
The light projected from light source 11 incides light guide member 202.The light projected from lens 201 incides light guide member 202. Light guide member 202 is the part to form luminous intensity distribution.A part for the light of light guide member 202 is incided directly from light guide member 202 Exit facet projects.Also, the part for inciding the light of light guide member 202 is reflected in the side of light guide member 202, traveling side To being changed to+Y direction.In Figure 19 (A) and Figure 19 (B), a part for light for light guide member 202 is incided in leaded light Part 202-side of Y-axis side reflected.
The light projected from optical component 12 is for example through front more than the 10m in+Z-direction of projection lens 13 X/Y plane It is imaged on (shadow surface 9).
Figure 19 (B) is to make projection lens 13 mobile from reference position to+Y direction and make luminous intensity distribution to+Y direction movement When figure.
It is assumed that due to the carrying state of vehicle or the deceleration of vehicle, the oblique situation of the posture declining forward of vehicle.
The driving transfer part 28 of 2nd drive division 141 driving the 2nd (not shown), thus projection lens side connection member 41 and throwing Lens 13 are penetrated to+Y direction movement.For example, as described in Embodiment 1, turned forward to correct by vehicle Oblique 5 degree and the offset of the optical axis of the projection lens 13 at caused front 25m, headlamp module 2 make projection lens 13 to+Y Direction of principal axis moves 1.5mm~2mm.
In addition, in Figure 16 into Figure 19, showing makes the 1st drive division 140 or the 2nd drive division 141 independently act Example.However, it is possible to so that the 1st drive division 140 and the 2nd drive division 141 drive simultaneously.
1st driving transfer part 27 is on the direction of central shaft 43 formed with concaveconvex shape 37.Also, concaveconvex shape 37 is in Mandrel 43 is the rotary body shape of rotary shaft.Thus, for example during the 1st drive division 140 acts, the 1st drive division 140 and the 1 drives action of the transfer part 27 without prejudice to the 2nd drive division 141.
" rotary body " is the solid formed when the straight line rotation for making planar graph on same plane is turned around. This, planar graph refers to the shape of the concaveconvex shape 37 in the plane comprising central shaft 43.Also, straight line refers to center Axle 43.
According to the headlamp module 2 of embodiment 2, drive division 50 has the 1st drive division 140 and the 2nd drive division 141.
1st drive division 140 makes direction linear motion of the adjustment axis 40 along central shaft 43.2nd drive division 141 drives adjustment axis 40 rotate around central shaft 43.
There is adjustment axis 40 the 1st driving transfer part 27 and the 2nd to drive transfer part 28.1st driving transfer part 27 will come from the 1st Transmit in direction of the driving force of drive division 140 along central shaft 43.2nd drives transfer part 28 by the driving from the 2nd drive division 141 Power is transmitted along around the direction of central shaft 43.
Therefore, the action of the projection lens 13 based on the 1st drive division 140 and the projection lens 13 based on the 2nd drive division 141 Action do not interfere.
As described above, headlamp module 2 can make luminous intensity distribution along X by making axial movement of the adjustment axis 40 along central shaft 43 Direction of principal axis moves.Thus, it is possible to realize the illumination that the region that the driver in driving watches attentively can be improved in turning driving Headlamp.
Also, headlamp module 2 can be such that luminous intensity distribution is moved along Y direction by rotating adjustment axis 40.Thus, it is possible to Even if caused postural change is realized in the presence of the carrying state due to vehicle or the acceleration and deceleration of vehicle, can also illuminate fixation The headlamp of the position of height.
In addition, by the rotation of adjustment axis 40 or the axial movement of adjustment axis 40, luminous intensity distribution can be made along X-direction or Y direction moves.Projection lens 13 is connected with adjustment axis 40.It therefore, there is no need to be provided for making projection lens 13 along X-direction Or the axle independent of each other of Y direction movement.Therefore, it is possible to make the miniaturized structure on the periphery of projection lens 13.Also, energy Enough increase the free degree of the design model of headlamp.
Figure 20 is when showing to be configured headlamp module 2a, 2b, 2c of embodiment 2 along X-direction arrangement is multiple Headlamp 98 structure figure.
As shown in figure 20, in headlamp 98, multiple headlamp module 2a, 2b, 2c are arranged along X-direction.Regulation Axle 45 is corresponding position has connecting portion 42 respectively with headlamp module 2a, 2b, 2c.
Adjustment axis 45 corresponds to the adjustment axis 40 shown in Figure 13.Connecting portion 42 corresponds to the connecting portion 20 shown in Figure 13.Adjust Nodal axisn 45 has multiple connecting portions 42.In fig. 20, such as adjustment axis 45 has 3 connecting portions 42.
Connecting portion 42 is connected with projection lens side connection member 41.Projection lens side connection member 41 is respectively arranged at preceding photograph Lamp module 2a, 2b, 2c.In addition, in fig. 20 without diagram projection lens side connection member 41.
Also, connecting portion 42 has the 1st holding section 70 and core shift portion 46.1st holding section 70 in the X-axis direction with headlamp The respective projection lens side connection member 42 of module 2a, 2b, 2c engages.Core shift portion 46 connects with projection lens side in the Y-axis direction Relay part 41 engages.
In addition, adjustment axis 45 has central shaft (rotary shaft) 47.Core shift portion 46 has in the position different from central shaft 47 Central shaft 48.That is, the central shaft 47 in core shift portion 46 relative to adjustment axis 45 the core shift of central shaft (rotary shaft) 47.The He of central shaft 47 Central shaft 47 is parallel to each other.In fig. 20, central shaft 47 and central shaft 47 are parallel with X-axis.
It is identical with the structure described in fig.15 on the connection of projection lens side connection member 41 and connecting portion 42, because And omit the description.
As shown in figure 20, multiple headlamp module 2a, 2b, 2c are arranged along X-direction.Thereby, it is possible to pass through one group Adjustment axis 45 and drive division 50 adjust each headlamp module 2a, 2b, 2c.Therefore, even if the number increase of headlamp module 2, Compared with the situation of adjustment axis 45 and drive division 50 is set to each headlamp module 2, it can also simplify for driving headlamp The structure of module 2.
That is, even if the quantity of headlamp module 2 is multiple, by using the adjustment axis 45 shown in embodiment 2 and driving The structure in portion 50, also it can move multiple projection lens 13 by one group of adjustment axis 45 and drive division 50.
As illustrated in fig. 10 in embodiment 1, headlamp 98 is that multiple headlamp module 2a, 2b, 2c are each From light distribution patterns be added.Also, headlamp 98 can form desired luminous intensity distribution figure using multiple headlamp module 2a, 2b, 2c Case.
The headlamp module 2 of embodiment 2 has light source 11, projection lens 13, adjustment axis 40 and drive division 50.
The incident light projected from light source 11 of projection lens 13.The incident light projected from light source 11 of projection lens 13 is used as incident Light.Projection lens 13 projects using incident light as projection light to the front of vehicle.In embodiment 2, projection lens 13 is incident The light projected from light guide member 202.
Adjustment axis 40 has the connecting portion 20 being connected with projection lens 3.Connecting portion 20 has core shift portion 30.Core shift portion 30 exists The position different from the central shaft 43 of adjustment axis 40 has central shaft 44.That is, central shaft 44 is relative to the core shift of central shaft 43.
Drive division 50 moves direction of the adjustment axis 40 along central shaft 43, and drives adjustment axis 40 to be rotated around central shaft 43. Central shaft 43 is the axle of adjustment axis 40.
Therefore, headlamp module 2 can further suppress the knot that can make luminous intensity distribution along the vertical direction or left and right directions moves The maximization of structure.
In addition, according to the headlamp module 2 of embodiment 2, projection lens 13 is maintained on lens mount 19.Lens mount 19 With projection lens side connection member 41.Projection lens side connection member 41 connects connecting portion 20 and lens mount 19.Connecting portion 20 have the 1st holding section 70.1st holding section 70 engages on the direction of rotary shaft 43 with projection lens side connection member 41.
Therefore, the 1st holding section 70 be limit projection lens 13 in the horizontal direction the action in (X-direction) composition will Element.X-direction is the horizontal direction of headlamp module 2.1st holding section 70 can simplify the knot of projection lens side connection member 41 Structure.
Also, the headlamp 98 of embodiment 2 can have headlamp module 2a, 2b, 2c of multiple embodiments 2.Before Illuminator 98 by each projection light projected from headlamp module 2a, 2b, 2c it is overlapping or arrangement, be consequently formed before projecting vehicle The light distribution patterns of side.Therefore, respective light distribution patterns can be added by headlamp 98 using multiple headlamp module 2a, 2b, 2c And form desired light distribution patterns.
In addition, in the case where headlamp 98 has a headlamp module 2, headlamp module 2 itself turns into headlamp 98.This is same in embodiment 1.
In above-mentioned embodiment 2, the limitation of the X-direction of projection lens 130 is projected by the 1st holding section 70 The both ends of the X-direction of lens side connection member 41 are engaged and realized.It is however not limited to this structure.
Figure 21 is the figure for the variation for showing projection lens side connection member 41.
For example, it is also possible to as shown in figure 21, in projection lens side, the both ends of the X-direction of connection member 41 set the 2nd card Conjunction portion 71, the action of the X-direction in limitation core shift portion 31.In the case of shown in Figure 21, make core shift portion 31 than adjustment axis 40 External diameter is thick.Also, take the structure for being not provided with the 1st holding section 70.In this case, core shift portion 31 corresponds to connecting portion 20.
2nd holding section 71 protrudes inwardly from the side of projection lens side connection member 41 court.Projection lens side connecting portion The side of part 41 refer to projection lens side connection member 41+face of X-axis side and the face of-X-axis side.Projection lens side connection member 41 inner side is, for example, the part enclosed by 3 bread of projection lens side connection member 41.
That is, the part side in core shift portion 31 has been stored from the side of projection lens side connection member 41 direction in the 2nd holding section 71 It is prominent.2nd holding section 71 is from the side of projection lens side connection member 41 to the pleurapophysis of central shaft 49 when having stored core shift portion 31 Go out.Central shaft 49 is the central shaft in core shift portion 31.
2nd holding section 71 is located at the side of the both sides of projection lens side connection member 41.
In figure 21, such as the 2nd holding section 71 is located at plate-like portion 41c side.But the 2nd holding section 71 can also be set In plate-like portion 41a, 41b side.
The length B of the X-direction in core shift portion 31 is configured to be less than in the side of the both sides of projection lens side connection member 41 The distance between the 2nd holding section 71 that face is set L.Structure in addition is identical with Figure 15 structure, thus omits the description.
According to the headlamp module 2 of embodiment 2, projection lens 13 is maintained on lens mount 19.Lens mount 19 has Projection lens side connection member 41.Projection lens side connection member 41 connects connecting portion 20 (core shift portion 31) and lens mount 19. Projection lens side connection member 41 has the 2nd holding section 71.Block on the direction of rotary shaft 47 with core shift portion 31 2nd holding section 71 Close.
Therefore, the 2nd holding section 71 be limit projection lens 13 in the horizontal direction the action in (X-direction) composition will Element.X-direction is the horizontal direction of headlamp module 2.2nd holding section 71 can simplify the structure of adjustment axis 40.
Figure 22 is the figure for the variation for showing projection lens side connection member 41.
Also, show another method for realizing the limitation to the X-direction of projection lens 13.
Projection lens side connection member 41 shown in Figure 22 has the 3rd holding section 72 in the groove 52 of U shape.Also, partially Core 31 has the 4th holding section 73.4th holding section 73 engages with the 3rd holding section 72.In this case, core shift portion 31 and the 4th Holding section 73 corresponds to connecting portion 20.
3rd holding section 72 is from plate-like portion 41a, 41b, 41c to prominent raised in the side of groove 52.In fig. 22, the 3rd holding section 72 be in ribbed shape.3rd holding section 72 is vertical relative to central shaft 49.Also, the 3rd holding section 72 protrudes from plate-like portion 41b.
4th holding section 73 is the groove set in core shift portion 31.The groove of 4th holding section 73 relative to central shaft 49 vertically Formed.That is, the groove of the 4th holding section 73 is circumferentially formed on the side of the drum in core shift portion 31.
In fig. 22, it is conformed with portion in the groove 52 of the U shape of projection lens side connection member 41.The jut is 3rd holding section 72.Groove portion is provided with core shift portion 31.The groove portion is the 4th holding section 73.4th holding section 73 and the 3rd holding section 72 Engaging.
Alternatively, it is also possible to be, the 3rd holding section 72 is groove portion, and the 4th holding section 73 is jut.
It is identical with Figure 15 and Figure 21 structure about the structure beyond the 3rd holding section and the 4th holding section, thus omit and say It is bright.
According to the headlamp module 2 of embodiment 2, projection lens 13 is maintained on lens mount 19.Lens mount 19 has Projection lens side connection member 41.Projection lens side connection member 41 has the 3rd holding section 72.3rd holding section 72 and core shift portion 31 (connecting portions 20) connect.Core shift portion 31 has the 4th holding section 73.4th holding section 73 engages with the 3rd holding section 72.
Therefore, it is possible to realize the miniaturization of connecting portion 20 and projection lens side connection member 41 simultaneously.Connecting portion 20 is located at Adjustment axis 40.
In addition, as embodiment 1, in above-mentioned each embodiment, plane or the vertical expression part etc. of waiting The term of position relationship, including consider the scope of the tolerance or the deviation in assembling etc. in manufacture.
In addition, embodiments of the present invention are illustrated as described above, but the invention is not restricted to these embodiments.
Following content is recorded as note.
<Note 1>
A kind of headlamp module, it is characterised in that the headlamp module has：
Light source, it sends light；
Projection lens, its incident light projected from the light source is as incident light, and as projection light to the front of vehicle Project；
Holding member, it is included in the deflection division on the optical axis direction of the projection lens with length, the deflection division One end is fixing end and the other end is movable end, and the holding member keeps the projection lens being connected with the movable end Into being bent by the deflection division, the projection lens can be relative to the optical component in the light with the projection lens Translated in the vertical plane of axle；And
Drive division, it makes the projection lens move on the plane.
<Note 2>
The headlamp module recorded according to note 1, wherein,
The holding member has parallel with the optical axis and orthogonal 1st plate spring part and the 2nd plate spring part,
One end of 1st plate spring part is the fixing end, the other end and the 2nd plate spring part of the 1st plate spring part One end connection, the other end of the 2nd plate spring part is the movable end.
<Note 3>
A kind of headlamp module, it is characterised in that the headlamp module has：
Light source；
Projection lens, its incident light projected from the light source is as incident light, and using the incident light as projection light Projected to vehicle front；
Adjustment axis, it has the connecting portion being connected with the projection lens；And
Drive division, its axially driving described projection lens adjustment axis along the adjustment axis, and drive the projection saturating Mirror adjustment axis rotates around the axle,
The connecting portion has core shift portion, and the core shift portion has center in the position different from the rotary shaft of the adjustment axis Axle.
<Note 4>
The headlamp module recorded according to note 3, wherein,
The projection lens has the projection lens side connection member being connected with the connecting portion,
The connecting portion has the 1st card engaged on the direction of the rotary shaft with projection lens side connection member Conjunction portion.
<Note 5>
The headlamp module recorded according to note 3, wherein,
The projection lens has the projection lens side connection member being connected with the connecting portion,
Projection lens side connection member has the 2nd that the direction relative to the rotary shaft engages with the core shift portion Holding section.
<Note 6>
The headlamp module recorded according to note 3, wherein,
Projection lens side connection member of the projection lens with being connected with the connecting portion and with the 3rd holding section,
The core shift portion has the 4th holding section engaged with the 3rd holding section.
<Note 7>
According to the headlamp module that any one is recorded in note 3 to 6, wherein,
The drive division has the 1st drive division that the adjustment axis is driven up in the side of the rotary shaft and driving institute The 2nd drive division that adjustment axis rotates around the rotary shaft is stated,
The adjustment axis has the transmit direction of the driving force from the 1st drive division along the axle the 1st to transmit Portion and by the driving force from the 2nd drive division along the 2nd transfer part transmitted around the direction of the axle.
<Note 8>
The headlamp module recorded according to note 7, wherein,
The headlamp module has：
1st reduction part, it is located between the 1st drive division and the 1st transfer part；And
2nd reduction part, it is located between the 2nd drive division and the 2nd transfer part.
<Note 9>
A kind of headlamp,
The headlamp has multiple headlamp modules according to any one record in note 1 to 8,
By each projection light projected from the headlamp module it is overlapping or arrangement, be consequently formed and project the vehicle The light distribution patterns in front.
Label declaration
1、1a、1b、1c、2、2a、2b、2c：Headlamp module；11：Light source；12：Optical component；13：Projection lens；14、 19：Lens mount；15：Holding member；15a、15b：Parallel spring；16、50：Drive division；17、18：Base portion；20、42：Connection Portion；22：Two-stage gear；22a：Little gear；22b：Gear wheel；27：1st driving transfer part；28：2nd driving transfer part；30、31、 46：Core shift portion；32：Two-stage gear；32a：Little gear；32b：Gear wheel；34：1st worm gear；35：2nd motor；37：Concave-convex Shape；40、45：Adjustment axis；41：Projection lens side connection member；41a、41b、41c：Plate-like portion；43、44、47、48、49：Center Axle；50：Drive division；52：Groove (groove of U shape)；70：1st holding section (flange part)；71：2nd holding section；72：3rd engaging Portion；73：4th holding section；9：Shadow surface；91、92：Irradiation area；93：The end of road；95、98：Headlamp；96：Cover；97： Housing；101：LED light source；102：Radiator；130：1st reduction part；131：2nd reduction part；140：1st drive division；141：2nd Drive division；201：Lens；202：Light guide member；301：Lens face；302：Flange part；401：Lens mount housing；402：X-axis adjusts Axle；403：Y-axis adjusts axle；404：Internal thread hole；405：Fitting portion；502、502a、502b：X-direction deflection division；503、 503a、503b：Y direction deflection division；601、601x、601y：Driving source；602、602x、602y：Feed screw；603、603x、 603y：Cam part；604：Cam shell；605：Cam path；606：Support shaft；701：Base housing；702：Leaf spring；703、 708：Internal thread hole；704、704x、704y：Axis hole；705、705x、705y：Elongated hole；φA：Diameter；B：Distance；C：The facewidth；E： Core shift amount；L：Length；W：Width.

Claims (15)

1. a kind of headlamp module, the headlamp module has：
Light source, it sends light；
Projection lens, its incident described light project as incident light, and as projection light；
Holding member, it is included in the deflection division on the optical axis direction of the projection lens with length, one end of the deflection division It is fixing end and the other end is movable end, by keeping the projection lens in the movable end, the projection lens is kept Into can be moved relative to the light source；And
Drive division, it moves the projection lens,
Bent by the deflection division, the projection lens translates in the plane vertical with the optical axis of the projection lens.
2. headlamp module according to claim 1, wherein,
The holding member includes the 1st deflection division and the 2nd deflection division,
1st deflection division and the 2nd deflection division include the part of parallel with the optical axis and orthogonal tabular,
One end of 1st deflection division is the fixing end, the other end of the 1st deflection division and the one of the 2nd deflection division End connection, the other end of the 2nd deflection division is the movable end.
3. headlamp module according to claim 2, wherein,
The part of the tabular is leaf spring.
4. the headlamp module according to any one in claims 1 to 3, wherein,
The headlamp module has the adjustment axle moved together with the projection lens,
The drive division is included in the cam part moved on the optical axis direction,
The adjustment axle and the cam part form cam mechanism.
5. the headlamp module according to any one in claims 1 to 3, wherein,
The headlamp module has the cam path moved together with the projection lens,
The drive division is included in the adjustment axle moved on the optical axis direction,
The adjustment axle and the cam path form cam mechanism.
6. the headlamp module according to any one in claims 1 to 3, wherein,
The headlamp module has adjustment axis, and the adjustment axis includes transmitting the connecting portion of driving force to the projection lens,
The drive division makes the adjustment axis be moved up in the side of the 1st central shaft of the adjustment axis, and makes the adjustment axis Rotated around the 1st central shaft.
7. headlamp module according to claim 6, wherein,
The connecting portion has core shift portion,
The core shift portion is parallel with the 1st central shaft, has the 2nd central shaft in the position different from the adjustment axis.
8. the headlamp module according to claim 6 or 7, wherein,
There is the headlamp module projection lens side moved together with the projection lens and be connected with the connecting portion to connect Socket part.
9. headlamp module according to claim 8, wherein,
The connecting portion is included in the 1st engaging engaged on the direction of the 1st central shaft with projection lens side connecting portion Portion.
10. headlamp module according to claim 8, wherein,
Projection lens side connection member is included in the 2nd card engaged on the direction of the 1st central shaft with the core shift portion Conjunction portion.
11. headlamp module according to claim 8, wherein,
The core shift portion includes the 3rd holding section,
Projection lens side connecting portion includes the 4th holding section,
3rd holding section engages on the direction of the 1st central shaft with the 4th holding section.
12. the headlamp module according to any one in claim 6~11, wherein,
The drive division have make the 1st drive division that the adjustment axis moves up in the side of the 1st central shaft,
The adjustment axis has the transmit direction of the driving force from the 1st drive division along the 1st central shaft the 1st to drive Dynamic transfer part.
13. headlamp module according to claim 12, wherein,
The 1st driving transfer part is in concaveconvex shape along the section that the plane cut-out comprising the 1st central shaft forms, and described 1st driving transfer part is the rotary body shape using the 1st central shaft as rotary shaft.
14. the headlamp module according to any one in claim 6~13, wherein,
The drive division have make the 2nd drive division that the adjustment axis rotates around the 1st central shaft,
The adjustment axis has the driving force from the 2nd drive division along transmitting around the direction of the 1st central shaft 2nd driving transfer part.
15. a kind of headlamp,
The headlamp has multiple headlamp modules according to any one in claim 1~14,
By each projection light projected from the headlamp module it is overlapping or arrangement, be consequently formed projected light distribution patterns.
CN201680028998.3A 2014-08-27 2016-02-23 Headlamp module and headlamp Active CN107614983B (en)

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PCT/JP2016/055182 WO2016189907A1 (en) 2015-05-25 2016-02-23 Headlamp module and headlamp

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JP2017065677A (en) 2017-04-06
DE112016002385B4 (en) 2023-07-20

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