WO2014057681A1 - 車両用前照灯装置 - Google Patents
車両用前照灯装置 Download PDFInfo
- Publication number
- WO2014057681A1 WO2014057681A1 PCT/JP2013/006045 JP2013006045W WO2014057681A1 WO 2014057681 A1 WO2014057681 A1 WO 2014057681A1 JP 2013006045 W JP2013006045 W JP 2013006045W WO 2014057681 A1 WO2014057681 A1 WO 2014057681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- wedge prism
- angle
- axis
- light
- Prior art date
Links
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
- B62J6/02—Headlights
- B62J6/022—Headlights specially adapted for motorcycles or the like
- B62J6/023—Headlights specially adapted for motorcycles or the like responsive to the lean angle of the cycle, e.g. changing intensity or switching sub-lights when cornering
-
- 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]
- F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- 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
- F21S41/60—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
Definitions
- the present invention relates to a vehicle headlamp device that provides an appropriate light distribution to a driver.
- a motorcycle headlamp having means for rotating a light distribution region in a direction opposite to the bank direction of the vehicle body is disclosed so that a wide field of view can be secured even during cornering when the vehicle is driven at night (for example, (See Patent Document 1).
- “light distribution” is a spatial distribution of light emitted from a light source.
- a two-wheeled vehicle headlamp that has a plurality of lamps and ensures a visual field by sequentially lighting the lamps according to the bank angle of the vehicle body is disclosed (for example, see Patent Document 2).
- Japanese Patent Laid-Open No. 2001-347977 page 2-3, FIG. 8
- Japanese Patent Laying-Open No. 2009-120057 page 3, FIG. 1
- Patent Document 2 there is a problem that the irradiation area cannot be continuously changed with the change in the bank angle of the vehicle body because the lamp is fixed.
- the vehicular headlamp apparatus is made to solve the above-described problems, and can brightly illuminate a region facing the driver's line of sight when the vehicle body turns. Moreover, the vehicle headlamp device according to the present invention can continuously change the irradiation region with the change of the bank angle of the vehicle body.
- the headlamp device has the same meaning as a headlamp and a lighting device. However, when a headlamp device is configured using a plurality of lamps, each lamp is referred to as a “lamp”.
- a vehicle headlamp device includes a first light source, and an optical system including a first wedge prism and a second wedge prism that emit light after being incident, deflected, and emitted from the first light source.
- a rotation mechanism that rotates the first wedge prism about the rotation axis, and a control circuit that controls the rotation mechanism to rotate the first wedge prism in a direction opposite to the bank direction according to the bank angle of the vehicle.
- the first wedge prism and the second wedge prism are arranged so that the surfaces perpendicular to the rotation axis face each other, and the first wedge prism has a wedge angle of the road surface. It arrange
- the illumination area can be moved based on the bank angle of the vehicle, the direction in which the driver's line of sight faces is brightly illuminated when the vehicle turns. Can do. Further, the irradiation area can be continuously changed as the bank angle of the vehicle body changes.
- FIG. 1 shows schematically the structure of the headlamp apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing about the bank angle d of a vehicle. It is explanatory drawing of the wedge prism of the headlamp apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing of the wedge prism of the headlamp apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the movement of the high illumination intensity area
- FIG. 23 and FIG. 24 are explanatory diagrams showing a light distribution region of the headlamp device.
- 22, 23, and 24 are views when the horizon 2006 is seen when the driver is positioned at the position of the vertical line V on the near side with respect to the paper surface.
- the straight line 2007 perpendicular to the ground coincides with the direction in which the vehicle goes straight before the vehicle enters the corner.
- a straight line corresponding to the straight line 2006 is H
- a straight line corresponding to the straight line 2007 is V. As shown in FIG.
- a wide area illuminated by the headlamp device is a main light distribution area 2002.
- the end part 2001 may indicate a roadside band drawn on the road surface, for example.
- a horizon 2006 is a line that forms a boundary between the ground and the sky.
- a central portion 2003 of the light distribution region shown in FIG. 22 is a portion in the main light distribution region 2002 whose illuminance is higher than a predetermined illuminance. This high illuminance portion is defined as a high illuminance region 2003.
- the main light distribution region 2002 and the high illuminance region 2003 may indicate an illuminance distribution in which the illuminance increases as the central portion of each region increases.
- the formation of the high illumination area 2003 by the vehicle headlamp device is realized by devising the lens shape of the lens constituting the headlamp device or by using a plurality of lamps. Yes.
- the embodiment of the present invention will be described based on a vehicle headlamp device in which a main light distribution region 2002 and a high illuminance region 2003 are formed by a plurality of lamps.
- the front of the vehicle is irradiated with the high illuminance area 2003.
- the lower side of the intersection of the horizon 2006 and the straight line 2007 perpendicular to the ground is irradiated in the high illuminance region 2003.
- the vehicle when the vehicle travels in a corner where the course of the vehicle is in the left direction, the vehicle tilts to the left, so that the main light distribution region 2002 is tilted so that the right side is raised and the left side is lowered. “Tilt” means tilting down.
- the region where the driver's line of sight faces is the front of the corner, and is the driver's line-of-sight region 2005 when turning.
- the driver's line-of-sight area 2005 during turning is indicated by a broken line.
- the driver's line-of-sight area 2005 during turning is an area where light distribution does not reach. For this reason, the visibility of the area where the driver's line of sight is directed is lower than when driving straight ahead.
- FIG. 24 is a diagram showing an illuminance distribution when the main light distribution region 2002 shown in FIG. 23 is rotated clockwise as in Patent Document 1.
- the main light distribution area 2002 has a light distribution including the driver's line-of-sight area 2005 when turning left. In this case, it is possible to illuminate the driver's line-of-sight area 2005 during turning.
- the area where the driver's line of sight (the driver's line-of-sight area 2005 when turning) cannot be irradiated in the high illuminance area 2003, as in the case of the vehicle traveling straight. For this reason, the visibility is lower than when the vehicle is traveling straight.
- FIG. 1 is a diagram showing a vehicle headlamp device 100 according to Embodiment 1 of the present invention.
- xyz coordinates are used for ease of explanation.
- the x-axis is the left-right direction when viewed in the traveling direction of the vehicle.
- the + x-axis direction is the left side when viewing the traveling direction of the vehicle, and the -x-axis direction is the right side.
- y-axis It is the vertical direction of the vehicle. For this reason, when the vehicle tilts, the y-axis also tilts.
- the + y axis direction is the upper side.
- the y-axis direction is the lower side.
- the “upper side” is the sky direction
- the “lower side” is the direction of the ground.
- the z axis is the longitudinal direction of the vehicle.
- the + z axis direction is the forward direction
- the ⁇ z axis direction is the backward direction.
- the vehicular headlamp device 100 performs irradiation of a lighting device 91 (second lighting device) responsible for irradiation of the main light distribution region 2002 and irradiation of the high illumination region 2003 in the light distribution region shown in FIG. 22. It has two lamps with the lamp 92 (first lamp) to carry. In the vehicle headlamp 100, the lighting device 91 and the lighting device 92 are disposed in the vicinity.
- the lighting device 92 (first lighting device) irradiates a range that is higher in illuminance than the fire device 91 (second lighting device) and narrower than the fire device 91 (second lighting device).
- the firearm 91 (second lamp) has a lower illuminance than the lamp 92 (first lamp) and irradiates a wider area than the lamp 92 (first lamp).
- the lighting device 91 includes a light source 111 and an optical element 80.
- the lamp 91 can have a light shielding plate 70.
- the light shielding plate 70 forms light emitted from the light source 111 into a desired shape.
- the light-shielding plate 70 has an opening to provide a light distribution that does not give glare to the driver of the oncoming vehicle.
- the optical element 80 adjusts the light distribution by irradiating the light having passed through the light shielding plate 70 to a desired position.
- a surface emitting light source intended to reduce the loss of light from the light source 111 to the optical element 80 may be used.
- the surface light source include an LED, an electroluminescence element, and a semiconductor laser.
- the optical element 80 is a projection lens or a reflector intended to irradiate the road surface with light from the light source 111.
- the optical element 80 is represented as a lens.
- the lighting device 92 includes a light source 211, an optical system 21, a rotation mechanism 50, and a control circuit 60.
- the lighting device 92 can include the optical element 20.
- the optical element 20 collimates the light emitted from the light source 211.
- the optical system 21 deflects the light collimated by the optical element 20 to a desired position. “Deflection” is to bend or change the traveling direction of light.
- the rotation mechanism 50 drives the optical system 21. When the rotation mechanism 50 drives the optical system 21, the deflection direction of the light emitted from the light source 211 changes.
- the control circuit 60 controls the rotation mechanism.
- the light source 211 a surface emitting light source intended to reduce the loss of light from the light source 211 to the optical element 20 may be used.
- the surface light source include an LED, an electroluminescence element, and a semiconductor laser.
- the optical element 20 is a collimating lens or a reflector having a positive power. However, in FIG. 1, the optical element 20 is represented as a lens.
- the optical system 21 includes a wedge prism 30 and a wedge prism 40. Further, the driving power is transmitted to the optical system 21 by a gear 503.
- the “wedge prism” is a prism having a small apex angle.
- the “vertical angle” is an angle formed by two refractive surfaces of the prism. That is, the wedge prism has an inclined optical surface, and one surface is usually inclined at a very small angle with respect to the other surface. Incident light is refracted in the direction of thick prism.
- the apex angle will be described as the wedge angle a.
- the two refracting surfaces of the wedge prism are generally flat, but the “wedge prism” shown below includes a case where the refracting surface is a curved surface.
- the wedge prism is used with one refracting surface arranged perpendicular to the optical axis. Further, the wedge prism is used while being rotated with an optical axis or an axis parallel to the optical axis as a rotation axis.
- the “surface perpendicular to the optical axis” means that the tangent plane at the point where the rotation axis intersects the refracting surface is perpendicular to the optical axis.
- the wedge prism 30 has an entrance surface 301 and an exit surface 302.
- the incident surface 301 is a surface inclined by a wedge angle a1 with respect to a surface perpendicular to the optical axis C.
- the exit surface 302 is a surface perpendicular to the optical axis C.
- the wedge prism 40 has an entrance surface 401 and an exit surface 402.
- the incident surface 401 is incident on the light emitted from the emission surface 302 of the wedge prism 30.
- the incident surface 401 is a surface perpendicular to the optical axis C.
- the emission surface 402 is a surface inclined by a wedge angle a2 with respect to a surface perpendicular to the optical axis C.
- the optical axis C is a normal line at the center of the light emitting surface of the light source 211.
- the size of the wedge angle a1 of the wedge prism 30 is equal to the size of the wedge angle a2 of the wedge prism 40.
- the entrance surface 301 of the wedge prism 30 is parallel to the exit surface 402 of the wedge prism 40.
- the wedge angle a1 of the wedge prism 30 is arranged so as to face the ⁇ y axis direction. Since the ⁇ y-axis direction is the direction of the road surface, the wedge angle a1 is arranged to face the road surface. That is, the incident surface 301 is a surface rotated clockwise from the surface perpendicular to the optical axis C by the wedge angle a1 when viewed from the ⁇ x-axis direction.
- the wedge angle a2 of the wedge prism 40 is arranged to face the + y axis direction.
- the emission surface 402 is a surface rotated clockwise from the surface perpendicular to the optical axis C by the wedge angle a2 when viewed from the ⁇ x-axis direction.
- the wedge angle faces the road surface means that a position where two refracting surfaces (incident surface and outgoing surface) intersect is on the opposite side of the road surface with respect to the optical axis C.
- the wedge prism 30 is installed so as to be rotatable about the optical axis C. Also.
- the wedge prism 30 is provided with a gear 503 for transmitting the rotational motion from the rotation mechanism 50.
- the gear 503 receives the driving force from the rotation mechanism 50.
- the method for rotating the wedge prism 30 by the rotation mechanism 50 may be any method that transmits the driving force of the rotation mechanism 50 to the wedge prism 30. For this reason, not only gear 503 but a belt etc. may be used, for example.
- FIG. 2 is an explanatory diagram showing the bank angle d when the vehicle is turning.
- the “bank angle d” is an angle d of the inclination of the vehicle body with respect to a straight line 2007 (y-axis) perpendicular to the ground. The greater the curvature of the corner where the vehicle turns, the greater the bank angle d of the vehicle body.
- the drive source 501 is, for example, a stepping motor.
- the rotation shaft 51 is a shaft that transmits the rotation of the drive source 501 to the gear 502.
- the gear 502 rotates in response to the rotational motion of the rotary shaft 51 and drives the gear 503.
- the gear 502 is in mesh with the gear 503.
- the rotation mechanism 50 has a function of rotating the wedge prism 30 around the optical axis C in a direction opposite to the banking direction of the vehicle according to the bank angle d of the vehicle body shown in FIG.
- Banking means that the vehicle body tilts when turning around a corner or the like.
- the “banked direction” is a direction in which the vehicle body is inclined to the right side ( ⁇ x axis direction) or the left side (+ x axis direction). Hereinafter, it is also referred to as “bank direction”.
- the rotation mechanism 50 is not limited to the above configuration as long as it can rotate the wedge prism 30 around an axis parallel to the optical axis C.
- the control circuit 60 receives a detection signal from the vehicle body inclination detector 65 that detects the bank angle d of the vehicle body.
- the vehicle body inclination detector 65 is a sensor such as a gyro, for example. Based on this detection signal, the control circuit 60 calculates the rotation angle f of the wedge prism 30 and controls the drive source 501.
- the rotation angle f is a rotation angle of the wedge prism 30 necessary for irradiating the turning driver's line-of-sight area 2005 (see FIG. 22) with the lighting device 92.
- FIG. 3 is an explanatory diagram of the wedge prism of the vehicle headlamp device 100.
- FIG. 3 shows how light rays are deflected by the wedge prism 1 having the wedge angle a.
- Parallel rays parallel to the optical axis C are incident on the incident surface 11 of the wedge prism 1 perpendicular to the optical axis C.
- the exit surface 12 is inclined by the wedge angle a with respect to the entrance surface 11.
- the incident light beam travels inside the wedge prism 1 without being refracted by the incident surface 11.
- the incident light beam is refracted and travels in the direction opposite to the position E where the incident surface 11 and the exit surface 12 intersect when exiting from the exit surface 12.
- the deflection angle r w1 is the refractive index n w of the wedge prism 1. It is known that it is obtained approximately by the following equation (1).
- This expression (1) is an approximate expression when the wedge angle a is small.
- the “deflection angle” is an angle at which light is bent with respect to incident light.
- FIG. 4 is an explanatory diagram of the wedge prisms 2 and 3 of the vehicle headlamp device 100.
- FIG. 4 shows the deflection of the light beam by the pair of wedge prisms 2 and 3.
- the pair of wedge prisms 2 and 3 are arranged such that surfaces perpendicular to the optical axis C face each other.
- FIG. 4 shows xyz coordinates.
- the z axis indicates the traveling direction of the vehicle.
- the direction in which the vehicle travels is the + z direction.
- the x-axis indicates the left-right direction with respect to the vehicle. Looking at the direction in which the vehicle travels, the left side is the + x-axis direction.
- the y axis indicates the vertical direction of the vehicle.
- the upper side (empty direction) with respect to the vehicle is the + y-axis direction.
- the x-axis and the y-axis rotate in the direction in which the vehicle tilts around the z-axis.
- the entrance surface 21 of the wedge prism 2 is inclined with respect to the optical axis C.
- the exit surface 22 of the wedge prism 2 is perpendicular to the optical axis C.
- the entrance surface 31 of the wedge prism 3 is perpendicular to the optical axis C.
- the exit surface 32 of the wedge prism 3 is inclined with respect to the optical axis C.
- the exit surface 22 of the wedge prism 2 is disposed to face the entrance surface 31 of the wedge prism 3.
- FIG. 4 shows the deflection of the light beam emitted from the output surface 32 when the light beam on the optical axis C is incident on the incident surface 21.
- the maximum deflection angle r w23 is expressed by the following equation (2).
- the rotation directions of the wedge prism 2 and the wedge prism 3 are indicated by thick arrows.
- FIG. 5 is an explanatory diagram showing the movement of the central portion of the high illuminance region 2003 irradiated by the vehicle headlamp device 100.
- FIG. 5 is a view of the traveling direction from a traveling vehicle.
- FIG. 5 shows an example in which the vehicle is turning to the left.
- the position Q1 is the intersection of the horizon 2006 and a straight line 2007 passing through the vehicle body and perpendicular to the horizon 2006. That is, the position Q1 is a position where the driver's line of sight faces when the vehicle goes straight.
- the position Q2 is a position where the driver's line of sight is directed when the vehicle turns left at the bank angle d.
- the position Q1 and the position Q2 are indicated by white circles.
- the coordinate system viewed from the vehicle tilted at the bank angle d is indicated by xy coordinates.
- the x-axis is inclined by the bank angle d with respect to the horizontal straight line 2006 through the position Q1.
- the x-axis is tilted counterclockwise with respect to the horizontal straight line 2006.
- the y-axis is inclined by the bank angle d with respect to the vertical straight line 2007 through the position Q1.
- the y-axis is tilted counterclockwise with respect to the vertical straight line 2007.
- a straight line corresponding to the straight line 2006 is H
- a straight line corresponding to the straight line 2007 is V. The same applies to H and V in the subsequent drawings.
- the rotation direction is the angle d clockwise with respect to the x-axis.
- the high illuminance region 2003 moves in the first quadrant and the second quadrant of the xy coordinates of the vehicle. Therefore, the range irradiated by the high illuminance area 2003 is the upper half of the deflection area shown in FIG.
- the deflection region is represented by the bottom surface in the cone represented by the solid angle 2 ⁇ r w23 .
- “upper” is the y-axis direction shown in FIG.
- FIG. 6 is an explanatory view of the deflection by the optical system 21 included in the vehicle headlamp device 100.
- FIG. 6 is a view of the vehicle side as viewed from the front of the vehicle. That is, it is a view of the ⁇ z-axis direction viewed from the + z-axis direction.
- the wedge prism 30 of the optical system 21 shown in FIG. 1 is rotated clockwise by the rotation angle f when viewed in the + z-axis direction from the ⁇ z-axis direction.
- the wedge prism 30 is rotated counterclockwise by the rotation angle f.
- the wedge prism 40 is fixed so that the wedge angle a faces the + y-axis direction (the direction opposite to the ground). That is, the exit surface 402 is inclined with respect to the entrance surface 401 so that the + y-axis direction is widened.
- the vector D30 is a deflection vector of the wedge prism 30.
- the vector D30 is a deflection vector when the wedge prism 30 is rotated by the rotation angle f.
- the vector D30 is oriented in the direction rotated by the rotation angle f counterclockwise from the ⁇ y axis direction around the intersection of the x axis and the y axis.
- the vector D40 is a deflection vector of the wedge prism 40.
- the vector D40 is a deflection vector in the + y-axis direction by the wedge prism 40.
- FIG. 6 shows a state in which light incident on the optical system 21 is deflected by the wedge prisms 30 and 40 constituting the optical system 21 according to the first embodiment.
- the light beam incident on the wedge prism 30 is deflected in the direction of the combined deflection vector D50 of the deflection vector D30 and the deflection vector D40. That is, by fixing the direction of the wedge prism 40, the direction of deflection of the light incident on the prism portion (the wedge prisms 30 and 40) can be easily changed.
- the vehicle headlamp device 100 shown in the first embodiment fixes the wedge prism 40 so as to deflect the light beam in the + y-axis direction. And the vehicle headlamp apparatus 100 rotates the wedge prism 30 around the optical axis C according to the bank angle d of the vehicle. Thus, the vehicle headlamp device 100 can move the high illuminance region 2003 to an arbitrary position. That is, the vehicular headlamp apparatus 100 shown in the first embodiment can move the high illumination area 2003 to an arbitrary position according to an arbitrary bank angle d of the vehicle using these.
- a “skew ray” is a ray that is not in a plane that includes both the optical axis and the object point.
- FIG. 4 will be described as an example.
- the object point m is arranged at a position other than on the optical axis C in the ⁇ z-axis direction of the wedge prism 2.
- the chief ray CR is a ray that passes through the intersection point of the incident surface 21 and the optical axis C and the object point m.
- the plane including both the optical axis C and the object point m described above is a plane (illustrated by hatching) including the principal ray CR and the optical axis C.
- the skew ray SR is a ray not included in this plane.
- FIG. 7 is an explanatory diagram showing the configuration of the wedge prism 30 and the wedge prism 40 of the vehicle headlamp device 100.
- FIG. 7 is a diagram viewed from the ⁇ x-axis direction.
- FIG. 7 shows the arrangement of the wedge prisms 30 and 40 of the lamp 92 when traveling on a straight road.
- the position E 1 where the entrance surface 301 and the exit surface 302 of the wedge prism 30 intersect is located in the + y-axis direction with respect to the optical axis C.
- a position E 2 where the entrance surface 401 and the exit surface 402 of the wedge prism 40 intersect is located in the ⁇ y-axis direction with respect to the optical axis C.
- the exit surface 302 and the entrance surface 401 are planes perpendicular to the optical axis C. Further, the wedge prisms 30 and 40 are arranged so that the exit surface 302 and the entrance surface 401 face each other. Light rays enter the wedge prism 30 from the incident surface 301 and exit from the exit surface 302. The light beam emitted from the emission surface 302 enters the wedge prism 40 from the incident surface 401 and exits from the emission surface 402.
- the gap between the exit surface 302 of the wedge prism 30 and the entrance surface 401 of the wedge prism 40 does not affect the deflection of the light beam and can be ignored.
- “Void” means a gap. Therefore, the pair of wedge prisms 30 and 40 in FIG. 7 can be considered as a block of prisms 34 as shown in FIG. “A lump” refers to one lump. That is, the two wedge prisms 30 and 40 can be represented by one prism 34.
- the wedge prism 30 rotates in the circumferential direction of the z-axis, only the incident surface 301 of the prism 34 in FIG. 8 may be shaped to rotate in the circumferential direction of the z-axis.
- FIG. 8 is an explanatory diagram showing the configuration of the wedge prisms 30 and 40 of the vehicle headlamp device 100.
- the prism 34 is a prism in which the wedge prisms 30 and 40 are integrated.
- the prism 34 has an entrance surface 301 and an exit surface 402.
- the entrance surface 301 and the exit surface 402 are inclined by a wedge angle a with respect to the surface perpendicular to the optical axis C.
- the entrance surface 301 and the exit surface 402 are surfaces that are rotated by the wedge angle a clockwise with respect to the surface perpendicular to the optical axis C as viewed from the ⁇ x-axis direction. Therefore, the incident surface 301 is a surface parallel to the emission surface 402.
- the light refraction formula is applied to the case where the light emitted from the light source 211 and collimated by the optical element 20 enters the prism 34 in FIG. Then, the center position of the high illuminance region 2003 at an arbitrary distance from the emission surface 402 of the prism 34 is obtained as follows.
- FIG. 9 is an explanatory diagram showing the configuration of the wedge prisms 30 and 40 of the vehicle headlamp device 100. 9 explains how to obtain the center position of the high illuminance region 2003 using the prism 34 shown in FIG.
- the code is determined as follows.
- a unit direction vector (direction cosine) of incident light incident on the incident surface 301 of the prism 34 is set as a vector s 1
- a normal vector of the incident surface 301 is set as a vector N 1
- a unit direction vector of transmitted light from the incident surface 301 is set as a vector s 1h .
- the unit direction vector of the light ray incident on the output surface 402 is set as a vector s 2
- the normal vector of the output surface 402 is set as a vector N 2
- the unit direction vector of the output light beam (transmitted light) on the output surface 402 is a vector s 2h.
- the refractive index of air is 1 and the refractive index of the medium of the prism 34 is n
- the relationship of the following expressions (3) and (4) is established from the light refraction formula.
- Expression (3) and Expression (4) are transformed using the vector formula, they are expressed as the following Expression (3a) and Expression (4a).
- the expression (3a) is expressed as the expression (3b).
- the unit direction vector s 2h of the outgoing light beam on the outgoing surface 402 is expressed as shown in the following formula (5) using formulas (3b) and (4b).
- the unit direction vector s 2h can be uniquely obtained by using Equation (5).
- the normal vector N 1 of formula (5) is changed according to the rotation angle f.
- the rotation angle angle f of the wedge prism 30 and the normal vector of the incident surface 301 in traveling the angle a and the straight road wedge angle and vector N 10 uses the rotation matrix R f
- the following equation (6) is obtained.
- the unit direction vector s 1 in the equation (5) is expressed as the following equation (7) because it is considered that a principal ray parallel to the optical axis C emitted from the light source 211 is incident.
- the “principal ray” is a ray that is incident on the lens obliquely from a point outside the optical axis and passes through the center of the stop of the optical system. It is a light beam that exists even when the aperture is minimized.
- a light beam that is incident on the lens obliquely from a point outside the optical axis and passes through a position where the incident surface 301 and the optical axis C intersect is shown.
- FIG. 10 is an explanatory view showing the irradiation position of the light beam of the vehicle headlamp device 100.
- FIG. 10 shows the geometric relationship between the exit surface 402 of the prism 34 and the screen surface 35.
- a coordinate system x 2 y 2 z 2 is newly set with the emission point O 2 of the light beam on the emission surface 402 as the origin.
- x 2 axis is parallel to the x-axis.
- the + x 2- axis direction is the same as the + x-axis direction.
- y 2 axis is parallel to the y-axis.
- the + y 2- axis direction is the same as the + y-axis direction.
- z 2 axis is parallel to the z-axis.
- the + z 2- axis direction is the same as the + z-axis direction.
- a light irradiation position P (X, Y, Z) on the screen surface 35 at a distance Z in the + z 2 axis direction from the origin O 2 is obtained.
- the screen surface 35 is a surface perpendicular to the optical axis C.
- a distance from the origin O 2 to the irradiation position P (X, Y, Z) is a distance R.
- a straight line connecting the origin O 2 and the irradiation position P is parallel to the unit direction vector s 2h .
- the screen surface 35 is a virtual surface for explaining the irradiation position.
- Each component of the unit direction vector s2h is defined as the following equation (9).
- the position of the exit point O 2 of the exit surface 402 of the wedge prism 40 also changes.
- the emission point O 2 is the same as the origin O 2 described above. However, since the present invention irradiates far enough, the difference can be ignored. Therefore, by calculating the equation (12), the irradiation position of the light beam reaching the screen surface 35 at an arbitrary distance can be accurately obtained.
- FIG. 11 is an explanatory view showing the irradiation position of the light beam of the vehicle headlamp device 100.
- FIG. 11 shows an example in which the coordinates of the irradiation position P f (X, Y) on the screen surface 35 when the rotation angle f of the wedge prism 30 is changed are plotted.
- the x axis in FIG. 11 is the value of the x coordinate of the irradiation position P f (X, Y).
- the y axis in FIG. 11 is the y coordinate value of the irradiation position P f (X, Y).
- the subscript “P” indicates the rotation angle f of the wedge prism 30.
- the origin O 3 is a position where the principal ray emitted from the center of the light source 111 reaches the screen surface 35 when the wedge prism 30 is not rotated.
- the angle k is given by the following equation (13).
- the straight line L is a straight line connecting the origin O 3 and the irradiation position P f on the screen surface 35.
- the angle k is referred to as a tilt angle of the irradiation position P f.
- the trajectory drawn by the irradiation position P f depends on the wedge angle a and the refractive index n of the wedge prism 30 and the wedge prism 40.
- the irradiation position Pf is the irradiation position on the screen surface 35 of the light beam when the wedge prism 30 is rotated by the rotation angle f as shown in FIG. Therefore, by optimizing the wedge angle a and the refractive index n, it is possible to design the movement amount L f (distance L f shown in FIG. 11) to be a desired movement amount.
- the movement amount L f is the movement amount in the horizontal direction of the high illuminance region 2003 at an arbitrary bank angle d. This is because when the vehicle body is tilted by the bank angle d, the xy coordinates are also tilted by the angle d, so that the straight line L becomes a straight line extending in the horizontal direction.
- the principal ray emitted from the lamp 92 reaches the origin O 3 .
- the wedge prism 30 is rotated in a direction opposite to the bank direction of the vehicle. Accordingly, a principal ray emitted from the lighting apparatus 92 is moved in the horizontal direction of the inner corner distance L f. That is, the chief ray emitted from the lighting device 92 moves from the irradiation position P 0 to the irradiation position P f .
- “Inside the corner” means the left side when the road turns to the left and the right side when the road turns to the right.
- FIG. 13A is a diagram showing the light distribution in the main light distribution region 2002 and the light distribution in the high illuminance region 2003 when traveling on the straight road of the present invention.
- FIG. 13B is a diagram showing the light distribution in the main light distribution region 2002 and the light distribution in the high illuminance region 2003 when making a left turn according to the present invention.
- the high illuminance region 2003 illuminates directly under the intersection of the horizon 2006 and a line 2007 perpendicular to the ground.
- “directly” is the ⁇ y-axis direction. Note that the y-axis shown here is the coordinate of the vehicle that is traveling straight, and is therefore not inclined by the bank angle d.
- the y-axis direction is the vertical direction.
- a line 2007 perpendicular to the ground is at the position of the vehicle in the left-right direction.
- the high illuminance area 2003 moves to the vicinity of the driver's line-of-sight area 2005 during turning. In other words, the high illuminance region 2003 moves to the left in parallel to the horizon 2006 from the position where the vehicle goes straight.
- the vehicle headlamp device 100 according to the first embodiment can move the high illuminance region 2003 to a desired position only by rotating only the wedge prism 30 according to the bank angle d. Therefore, a compact vehicle headlamp device 100 with a small load on the rotating mechanism 50 can be realized.
- the vehicle headlamp device 100 can use both the lighting device 91 and the lighting device 92.
- the lighting device 91 irradiates the main light distribution region 2002 that irradiates the front of the vehicle.
- the lamp 92 includes means for moving the high illuminance region 2003 according to the bank angle d.
- the vehicle headlamp apparatus 100 can irradiate the traveling direction in the high illuminance region 2003 when the vehicle travels straight.
- the vehicle headlamp device 100 can continuously follow and irradiate the driver's line-of-sight region 2005 that moves according to the bank angle d in the high illuminance region 2003.
- operator improves.
- the wedge prism 30 is rotated so as to satisfy
- is the absolute value of the bank angle d.
- is the absolute value of the tilt angle of the irradiation position P f.
- the present invention is not limited to this, and may be changed as appropriate, for example, by rotating it so that
- the rotation direction of the rotation amount f of the wedge prism 30 related to the movement of the high illuminance region 2003 when the vehicle turns is opposite to the detected bank direction of the vehicle.
- the rotation amount f of the wedge prism 30 may be controlled so that the magnitude of the inclination angle k of the irradiation position P f obtained from the equation (13) matches the bank angle d.
- the inclination angle k of the rotation amount f and the irradiation position P f of the wedge prism 30 are in a non-linear relationship.
- the rotation amount f of the wedge prism 30 and the distance L f are also in a non-linear relationship. For this reason, the control of the rotation mechanism 50 is nonlinear control.
- the rotation amount f u per unit bank angle controls the rotation mechanism 50.
- the rotation amount of the wedge prism 30 at the maximum bank angle d max is set as a necessary rotation amount f max .
- the rotation amount f u per unit bank angle is expressed by the following equation (16). If the rotation mechanism 50 is controlled using a value obtained by multiplying the rotation amount f u per unit bank angle by the bank angle d at which the vehicle is inclined, linear control is possible and the control can be simplified.
- the wedge prisms 30 and 40 are arranged as shown in FIG. 7 in the reference state when traveling on a straight road.
- the state of FIG. 14 in which the wedge prism 30 and the wedge prism 40 are both rotated 180 degrees around the z axis may be used as the reference state.
- FIG. 14 is an explanatory diagram showing the configuration of the wedge prisms 30 and 40 of the vehicle headlamp device 100.
- the rotation mechanism 50 needs to drive the wedge prism 40 instead of the wedge prism 30.
- the control method for rotating the wedge prism 40 is the same as the control method for rotating the wedge prism 30.
- the vehicle headlamp device 100 includes a first lamp 92 having a light source 211, an optical system 21, a rotating mechanism 50, and a control circuit 60.
- the optical system 21 includes a first wedge prism 30 and a second wedge prism 40 that enter, deflect, and emit light from the light source 211.
- the rotation mechanism 50 rotates the first wedge prism 30 about the rotation axis.
- the control circuit 60 controls the rotation mechanism 50 to rotate the first wedge prism 30 in the direction opposite to the bank direction according to the bank angle d of the vehicle.
- the first wedge prism 30 and the second wedge prism 40 are arranged so that the surfaces perpendicular to the rotation axis face each other.
- the first wedge prism 30 is arranged such that the wedge angle a1 faces the road surface.
- the first wedge prism 30 is disposed so as to be rotatable about a rotation axis.
- the vehicle headlamp device 100 can brightly illuminate the direction in which the driver's line of sight faces when the vehicle turns.
- the vehicle headlamp device 100 can continuously change the irradiation region as the bank angle of the vehicle body changes.
- Light enters from the entrance surface 301 of the first wedge prism 30 and exits from the exit surface 302.
- the light emitted from the exit surface 302 enters from the entrance surface 401 of the second wedge prism 40 and exits from the exit surface 402.
- the rotation axis is described as being parallel to the optical axis C as an example.
- the vehicle headlamp device 100 can further include the optical element 20 that collimates the light emitted from the light source 211. Parallel light emitted from the optical element 20 enters the optical system 21. Thereby, the vehicle headlamp device 100 can realize accurate light distribution.
- the control circuit 60 controls the rotation angle f of the first wedge prism so that
- the angle d is the bank angle d of the vehicle. Further, a position where the principal ray emitted from the center of the light source 211 arrives at the origin O 3 on a plane which is located in front of the vehicle and at a predetermined distance Z from the vehicle and perpendicular to the traveling direction of the vehicle.
- a straight line passing through the origin O 3 and parallel to the horizon 2006 is taken as the x-axis
- a straight line passing through the origin O 3 and orthogonal to the x-axis is taken as the y-axis.
- the coordinates of the irradiation position illuminated by the light deflected by the optical system 21 are defined as coordinates (X, Y).
- An angle formed by a straight line connecting the coordinates (X, Y) and the origin O 3 with the x-axis is an angle k.
- the control circuit 60 can perform the following control in addition to the control method described above.
- the control circuit 60 obtains the rotation amount f max of the first wedge prism when the relationship with the maximum bank angle d max of the vehicle is
- the control circuit 60 the bank direction of the first wedge prism 30 vehicle in the reverse direction, the vehicle unit bank angle per rotation of f u is controlled by the value obtained by multiplying the bank angle d which is inclined. For this reason, the control circuit 60 can perform linear control and can simplify the control.
- the vehicle headlamp device 100 can further include a second lighting device 91.
- the second lighting device 91 includes a light source 111 and an optical element 80 that adjusts the light distribution of the light from the light source 111.
- the vehicle headlamp device 100 synthesizes the light distribution emitted from the first lighting device 92 and the light distribution emitted from the second lighting device 91 to illuminate the front of the vehicle. be able to. For this reason, the visibility at the time of a driving
- the first lighting device 92 irradiates the light distribution area with higher illuminance than the second lighting device 91.
- the first lighting device 92 illuminates the direction in which the driver's line of sight is directed.
- the second lighting device 91 illuminates a wide range in front of the vehicle. Since the vehicular headlamp device 100 illuminates the direction in which the driver's line of sight faces with high illuminance, the visibility of the driver when traveling is further improved.
- the first wedge prism 30 and the second wedge prism 40 are arranged so that the surfaces perpendicular to the optical axis C face each other.
- the opposing surfaces of the first wedge prism 30 and the second wedge prism 40 do not necessarily have to be arranged perpendicular to the optical axis.
- the opposing surfaces of the first wedge prism 30 and the second wedge prism 40 can be arranged to be inclined with respect to the optical axis C.
- the inclined light distribution is irradiated as compared with the case where the wedge prisms 30 and 40 are arranged perpendicular to the optical axis C.
- the vehicle headlamp device 100 it is advantageous when it is desired to arrange the vehicle headlamp device 100 so as to be inclined with respect to the front direction of the vehicle.
- the rotation axes of the wedge prisms 30 and 40 are inclined, the control is complicated as compared with the case where the rotation axes are not inclined. Further, when management of the angle at which the wedge prisms 30 and 40 are tilted is considered, productivity is lowered. Further, when it is desired to irradiate the light distribution in this way, it is also conceivable to arrange the vehicle headlamp device 100 at an angle. This may be easier to apply.
- FIG. FIG. 15 is a diagram schematically showing a configuration of the vehicle headlamp device 101 according to the second embodiment of the present invention.
- the configuration of the vehicular headlamp apparatus 101 according to the second embodiment includes two lamps, a lamp 91 and a lamp 93.
- the difference from the first embodiment is that the exit surface 312 of the wedge prism 36 is a cylindrical surface. That is, the headlamp 101 according to the second embodiment uses the wedge prism 36 in which the emission surface 302 of the wedge prism 30 according to the first embodiment is a cylindrical surface.
- the two refracting surfaces of the wedge prism are generally flat, but the “wedge prism” shown here includes a case where the refracting surface is a curved surface.
- the wedge prism is used with one refracting surface arranged perpendicular to the optical axis.
- the wedge prism is used while being rotated with an optical axis or an axis parallel to the optical axis as a rotation axis.
- the “surface perpendicular to the optical axis” means that the tangent plane at the point where the rotation axis intersects the refracting surface is perpendicular to the optical axis.
- the wedge prism 36 is driven by the rotation mechanism 50. Further, the emission surface 312 corresponds to the emission surface 302 of the wedge prism 30 shown in FIG.
- the exit surface 302 is a surface perpendicular to the optical axis C.
- the cylindrical surface is a kind of toroidal surface.
- the “toroidal surface” is a lens in which the curvature in the x-axis direction and the curvature in the y-axis direction shown in FIG. 15 are different.
- a “cylindrical surface” is a surface that has a refractive power in one direction and converges or diverges but does not have a refractive power in an orthogonal direction.
- Constituent elements similar to the constituent elements of the vehicle headlamp device 100 are the lighting device 91 (light source 111, light shielding plate 70 and optical element 80), light source 211, optical element 20, wedge prism 40, rotating mechanism 50 (drive source). 501, rotating shaft 51 and gear 502), gear 503, and control circuit 60.
- the entrance surface 311 of the wedge prism 36 is given a reference numeral different from that of the entrance surface 301, but the configuration and function are the same as those of the entrance surface 301.
- FIG. 16 is an explanatory diagram of the wedge prism 36 of the vehicle headlamp device 101.
- the exit surface 312 of the wedge prism 36 is a cylindrical surface having negative power only in the x-axis direction.
- FIG. 16A is a side view of the wedge prism 36. That is, it is a view seen from the -x-axis direction.
- FIG. 16B is a plan view of the wedge prism 36. That is, it is a view seen from the + y-axis direction.
- FIG. 17 is an explanatory diagram showing a light distribution area of the vehicle headlamp device 101.
- FIG. 17 shows a light distribution when the vehicle according to the second embodiment travels straight ahead.
- the “width direction” is the direction of the horizon 2006. That is, the “width direction” is the horizontal direction. This is because the light distribution of the light incident on the wedge prism 36 is spread in the horizontal direction by the lens action of the cylindrical surface of the exit surface 312 of the wedge prism 36.
- the “lens action” is an action of bending light.
- FIG. 18 is an explanatory diagram showing the configuration of the wedge prisms 36 and 40 of the vehicle headlamp device 101.
- FIG. 18 shows the arrangement of the wedge prism 36 and the wedge prism 40 in the second embodiment.
- the light enters the entrance surface 311 of the wedge prism 36 from the ⁇ z-axis direction.
- the incident surface 311 is inclined with respect to a surface perpendicular to the optical axis C.
- the incident surface 311 is a surface rotated clockwise with respect to a surface perpendicular to the optical axis C when viewed from the ⁇ x-axis direction.
- the incident surface 311 is a plane.
- the light incident on the wedge prism 360 from the incident surface 311 exits from the exit surface 312.
- the exit surface 312 is a cylindrical surface having a curvature only in the x-axis direction.
- the light divergence angle is expanded only in the x-axis direction when transmitted through the exit surface 312.
- the “divergence angle” is an angle at which light spreads.
- the light emitted from the exit surface 312 of the wedge prism 36 enters the entrance surface 401 of the wedge prism 401.
- the exit surface 312 and the entrance surface 401 are disposed to face each other.
- the incident surface 401 is a surface parallel to a plane perpendicular to the optical axis C.
- the incident surface 401 is a flat surface.
- the light incident on the wedge prism 40 from the incident surface 401 is emitted from the emission surface 402.
- the emission surface 402 is inclined with respect to a plane perpendicular to the optical axis C. In FIG. 18, the surface is rotated clockwise with respect to the surface perpendicular to the optical axis C when viewed from the ⁇ x-axis direction.
- the emission surface 402 is a flat surface. In FIG. 18, the entrance surface 311 and the exit surface 402 are parallel to each other. That is, the inclination angle of the incident surface 311 with respect to the plane perpendicular to the optical axis C is equal to the inclination angle of the output surface 402.
- FIG. 19 is an explanatory diagram showing the shape of the light distribution of the vehicle headlamp device 101.
- FIG. 19 shows how the high illuminance region 3003 is formed.
- the light emitted from the light source 211 is collimated by the optical element 20.
- the collimated light forms a high illuminance region 3003 by the wedge prism 36 and the wedge prism 40.
- the manner in which the high illuminance region 3003 is formed will be described below.
- the shape of the light emitting surface of the light source 211 is a horizontally long rectangular shape
- light having the shape of the light distribution 3000 shown in FIG. 19 is incident on the incident surface 311 of the wedge prism 36 shown in FIG.
- the light distribution 3000 has a wide horizontally long rectangular shape in the x-axis direction in the xyz coordinate system of the vehicle body.
- the light distribution 3000 is indicated by a rough broken line.
- “laterally long” means that the length of light distribution in the x-axis direction is longer than the length in the y-axis direction.
- the light transmitted through the incident surface 311 is deflected in the direction of the deflection vector D31 of the wedge prism 36 because the wedge prism 36 is rotated by a desired rotation angle f in the direction opposite to the bank angle d.
- a coordinate system obtained by rotating the xyz coordinate system around the z-axis by the rotation angle f as viewed from the z-axis direction is defined as an x f y f z coordinate system.
- Direction of deflection vector D31 is a -y f-axis direction.
- the emission surface 312 of the wedge prism 36 is not a cylindrical surface, the light distribution shape is a light distribution 3001 in FIG.
- Light distribution 3001 is for light distribution 3000 is moved parallel to the -y f-axis direction. In FIG. 19, the light distribution 3001 is indicated by a fine broken line.
- the exit surface 312 of the wedge prism 36 is a cylindrical surface.
- the light beam emitted from the emission surface 312 is deflected in the direction of the deflection vector D31R or the direction of the deflection vector D31L having different sizes depending on the position.
- Direction of deflection vector D31R is a -x f-axis direction.
- Direction of deflection vector D31L is a + x f-axis direction. Therefore, the light transmitted through the emission surface 312 is emitted after the light distribution 3001 is deformed like the light distribution 3002.
- the upper side and the lower side of the light distribution 3002 have a light distribution shape substantially parallel to a straight line 2006 (horizon line) horizontal to the ground.
- the light distribution 3002 has a parallelogram shape.
- the light emitted from the exit surface 312 of the wedge prism 36 is further deflected by the wedge prism 40 in the direction of the deflection vector D40.
- the direction of the deflection vector D40 is the + y-axis direction.
- region 3003 is formed.
- FIG. 20 is an explanatory diagram showing a light distribution area of the vehicle headlamp device 101. As shown in FIG. FIG. 20 shows a light distribution area when the vehicle travels while turning in the second embodiment. In this case, like the lamp 92 according to the first embodiment, the wedge prism 36 of the lamp 93 is rotated by the rotation angle f according to the bank angle d.
- the exit surface 312 of the wedge prism 36 is a cylindrical surface. Accordingly, when the vehicle travels while turning, the high illuminance region 3003 changes from the shape of the high illuminance region 2004 shown in FIG. 17 to the shape of the high illuminance region 3003 shown in FIG.
- the shape of the high illuminance region 2004 (FIG. 17) is the shape of light distribution when traveling straight ahead.
- the shape of the high illuminance region 3003 (FIG. 20) is the shape of light distribution when turning and traveling. As shown in FIG. 20, the high illuminance region 3003 effectively irradiates the driver's line-of-sight region 2005 during turning.
- the vehicle headlamp device 100 according to the first embodiment could not irradiate the entire driver's line-of-sight area 2005 during turning in the high-illuminance area 2003.
- the vehicular headlamp apparatus 101 according to the second embodiment can irradiate the entire driver's line-of-sight area 2005 when turning in a high illuminance area 3003.
- the wedge prism 36 has a function of widening the light distribution width of the high illuminance region 2003 shown in the first embodiment.
- the shape of the high-illuminance region 2003 shown in Embodiment Mode 1 is optimally changed by the lens action of the cylindrical surface (exit surface) 312. Therefore, the vehicle headlamp device 101 can effectively irradiate the driver's line-of-sight area 2005 during turning. That is, the vehicle headlamp device 101 can irradiate the entire driver's line-of-sight area 2005 during the turn in the high illuminance area 3003.
- the wedge prism 36 and the wedge prism 40 are arranged as shown in FIG. 18 as a reference state when the headlamp 101 according to the second embodiment travels on a straight road.
- the wedge prism 36 and the wedge prism 40 may both be rotated 180 degrees around the z axis (axis parallel to the optical axis C) to be in the reference state.
- the wedge prism 30 is disposed instead of the wedge prism 36. That is, the cylindrical emission surface 312 is a planar emission surface 301. Further, a wedge prism 41 is arranged instead of the wedge prism 40.
- the entrance surface 411 of the wedge prism 41 has a cylindrical surface shape. That is, the planar incident surface 401 becomes a cylindrical incident surface 411.
- the rotation mechanism 50 needs to drive the wedge prism 41 instead of the wedge prism 30.
- the operation of the rotation mechanism 50 that drives the wedge prism 41 and the operation of the control unit 60 that controls the rotation mechanism 50 are the same as those of the wedge prisms 36 and 40 shown in FIG.
- the surface shape of the exit surface 312 of the wedge prism 36 or the entrance surface 411 of the wedge prism 41 is a cylindrical surface.
- the cylindrical surface is a kind of toroidal surface, but is not limited to the cylindrical surface.
- the exit surface 312 or the entrance surface 411 may be a free curved surface such as a toroidal surface or an aspherical surface as long as the light distribution shape can be appropriately deformed by rotating the wedge prism when the vehicle is turning.
- An “aspherical surface” is a surface made of a curved surface that is not spherical.
- a surface having a complicated surface shape such as a curvature that becomes gentler as it goes away from the center of the optical axis, and a surface represented by a paraboloid or a polynomial (such as an ellipsoid, a hyperboloid, or a quartic surface).
- a shape of the surface having the curvature of the toroidal surface or the cylindrical surface is an aspherical shape.
- Free-form surface is a general term for surfaces having no rotational symmetry axis. Also called non-rotation symmetric surface.
- Embodiment 1 and Embodiment 2 an apparatus including two lamps has been described. That is, in Embodiment 1, there are two lamps 91 and 92. In the second embodiment, the lighting device 91 and the lighting device 93 are provided. However, the present invention is not limited to this, and a single lighting device including any one of the lighting device 92 that irradiates the high illuminance region 2003 or the lighting device 93 that irradiates the high illuminance region 3003 may be used. That is, it is the structure which is not provided with the lighting device 91. Even in such a configuration, it is possible to expect an effect that the driver's line-of-sight area 2005 during turning can be irradiated with the high illuminance areas 2003 and 3003.
- the light source of the lighting device is not limited to one provided with each light source.
- a single light source may be shared, and the optical system may distribute the light path in the main light distribution region and the light path in the high illuminance region.
- the light incident on the optical systems 21 and 22 is parallel light.
- the light does not necessarily have to be parallel light, and an angled light beam may be incident.
- the “angled light beam” is a light beam inclined with respect to a plane perpendicular to the optical axis C. That is, the lighting devices 92 and 93 may be configured without the optical element 20. Even in this case, the position to which the irradiation position P moves can be accurately calculated by calculating Expression (12).
- the light incident on the optical systems 21 and 22 is preferably parallel light.
- the first wedge prisms 36 and 41 are formed with curved surfaces perpendicular to the rotation axis.
- the divergence angle in the deflection direction D31 of the light transmitted through the curved surface is smaller than the divergence angle in the direction orthogonal to the deflection direction. For this reason, it is possible to efficiently irradiate all of the driver's line-of-sight area 2005 during turning in the high illuminance area 3003.
- the deflection direction D31 is parallel to the y-axis.
- the “divergence angle in the deflection direction D31” is a divergence angle in the y-axis direction.
- the divergence angle on the yz plane is parallel to the x-axis. That is, the “divergence angle in the direction orthogonal to the deflection direction” is the divergence angle in the x-axis direction. That is, the divergence angle on the zx plane.
- the vehicle including the vehicle headlamp devices 100 and 101 is not limited to a motorcycle.
- it can be employed in a tricycle.
- it is a motor tricycle called “gyro”.
- a “motorcycle called a gyro” is a scooter made up of three wheels with one front wheel and two rear wheels. In Japan, it corresponds to a motorbike. It has a rotating shaft near the center of the vehicle body, and most of the vehicle body including the front wheels and the driver's seat can be tilted left and right. With this mechanism, the center of gravity can be moved inward during turning as with a motorcycle.
- a four-wheeled vehicle can also detect the bank angle of the vehicle body and correct the high irradiation area.
- a four-wheeled vehicle can arbitrarily move in a high-illuminance region when the vehicle body is tilted, for example, when only one wheel is on an obstacle. And an appropriate light distribution can be obtained.
- the embodiments can be freely combined, or the embodiments can be appropriately changed or omitted.
- Vehicle headlamp device 111 211 Light source 20, 80 Optical element 1, 30, 36, 40 Wedge prism 11, 21, 31, 301, 311, 401 Incident surface 12, 22, 32, 302, 312 402 exit surface 50 rotation mechanism 501 drive source 503 gear 60 control circuit 65 vehicle body tilt detection unit 91, 92, 93 light a, a1, a2 wedge angle d bank angle f rotation angle k tilt angle C optical axis P intersecting position CA cone Corner 2002 Main light distribution area 2003, 3003 High illumination area 2005 Turning driver's line of sight area 2006 Horizon 2007 Straight line perpendicular to the ground
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
図1は、本発明の実施の形態1における車両用前照灯装置100を示す図である。以下の図において、説明を容易にするためにxyz座標を用いる。x軸は、車両の進行方向を見て、左右方向である。+x軸方向は、車両の進行方向を見て、左側であり、-x軸方向は、右側である。y軸は。車両の上下方向である。このため、車両が傾いた場合には、y軸も傾斜する。+y軸方向は上側である。-y軸方向は下側である。ここで、「上側」とは、空の方向で、「下側」とは地面の方向である。z軸は、車両の前後方向である。+z軸方向は前方向で、-z軸方向は後方向である。
図15は、本発明の実施の形態2に係る車両用前照灯装置101の構成を概略的に示す図である。図15に示されるように、実施の形態2に係る車両用前照灯装置101の構成は、灯火器91と灯火器93との2つの灯火器から構成されている。そして、ウェッジプリズム36の出射面312がシリンドリカル面となっている点で実施の形態1と異なる。すなわち、実施の形態2に係る前照灯101は、実施の形態1におけるウェッジプリズム30の出射面302をシリンドリカル面とした、ウェッジプリズム36を用いている。
111、211 光源
20、80 光学素子
1、30、36、40 ウェッジプリズム
11、21、31、301、311、401 入射面
12、22、32、302、312、402 出射面
50 回転機構
501 駆動源
503 歯車
60 制御回路
65 車体傾斜検出部
91、92、93 灯火器
a、a1、a2 ウェッジ角
d バンク角
f 回転角
k 傾き角度
C 光軸
P 交わる位置
CA 円錐角
2002 主配光領域
2003、3003 高照度領域
2005 旋回時運転者視線領域
2006 地平線
2007 地面に垂直な直線
Claims (7)
- 第一の光源と、
前記第一の光源からの光を入射して偏向して出射する第一のウェッジプリズム及び第二のウェッジプリズムを含む光学系と、
前記第一のウェッジプリズムを、回転軸を中心として回転させる回転機構と、
前記第一のウェッジプリズムを、車両のバンク角に応じてバンク方向と逆の方向に回転させるよう前記回転機構を制御する制御回路と
を有する第一の灯火器を備え、
前記第一のウェッジプリズム及び前記第二のウェッジプリズムは、前記回転軸に垂直な面が対向するように配置され、
前記第一のウェッジプリズムは、ウェッジ角が路面の方向を向くように配置されるとともに前記回転軸を中心として回転可能に配置されることを特徴とする車両用前照灯装置。 - 第一の光源から出射された光を平行光化する光学素子をさらに有し、前記光学素子から出射された平行光が前記光学系に入射することを特徴とする請求項1に記載の車両用前照灯装置。
- 第一のウェッジプリズムは、回転軸に対して垂直な面が曲面で形成され、前記曲面を透過した光の偏向方向の発散角は、前記偏向方向に直交する方向の発散角よりも小さいことを特徴とする請求項1または請求項2に記載の車両用前照灯装置。
- 制御回路は、
車両の前方でかつ車両から予め定められた距離に位置し、車両の進行方向に対して垂直な平面上で、第一の光源の中心から出射された主光線が到達する位置を原点とし、前記原点を通り地平線と平行な直線をx軸とし、前記原点を通りx軸に直交する直線をy軸とすると、
前記x軸および前記y軸を含むx-y平面上において、
光学系によって偏向された光によって照明される照射位置の座標を座標(X,Y)とし、前記座標(X,Y)と前記原点とを結ぶ直線が前記x軸となす角を角kとするとき、
前記車両のバンク角dと前記角kとの関係が、|d|≦|k|となるように、前記第一のウェッジプリズムの回転角fを制御することを特徴とする請求項1ないし請求項3のいずれか一項に記載の車両用前照灯装置。 - 制御回路は、
車両の前方でかつ車両から予め定められた距離に位置し、車両の進行方向に対して垂直な平面上で、第一の光源の中心から出射された主光線が到達する位置を原点とし、前記原点を通り地平線と平行な直線をx軸とし、前記原点を通りx軸に直交する直線をy軸とすると、
前記x軸および前記y軸を含むx-y平面上において、
光学系によって偏向された光によって照明される照射位置の座標を座標(X,Y)とし、前記座標(X,Y)と前記原点とを結ぶ直線が前記x軸となす角を角kとするとき、
前記車両の最大バンク角dmaxと前記角kとの関係が、|k|=|dmax|となるときの前記第一のウェッジプリズムの回転量fmaxを求め、前記第一のウェッジプリズムの単位バンク角当たり回転量fuをfu=fmax/dmaxとして求め、前記第一のウェッジプリズムを車両のバンク方向とは逆方向に、前記単位バンク角当たり回転量fuに前記車両が傾斜したバンク角dを乗算した値で制御することを特徴とする請求項1ないし請求項3のいずれか一項に記載の車両用前照灯装置。 - 第二の光源と、前記第二の光源の光の配光を調整する光学素子とを有した第二の灯火器をさらに備え、第一の灯火器から出射された光の配光と前記第二の灯火器から出射された光の配光とを合成して車両の前方を照らすことを特徴とする請求項1ないし請求項5のいずれか一項に記載の車両用前照灯装置。
- 第一の灯火器は、第二の灯火器よりも高照度で配光領域を照射するものであることを特徴とする請求項6に記載の車両用前照灯装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13845784.1A EP2907732B1 (en) | 2012-10-11 | 2013-10-10 | Vehicle headlight device |
JP2014540750A JP5920480B2 (ja) | 2012-10-11 | 2013-10-10 | 車両用前照灯装置 |
CN201380052825.1A CN104703869B (zh) | 2012-10-11 | 2013-10-10 | 车辆用前照灯装置 |
US14/434,469 US9810392B2 (en) | 2012-10-11 | 2013-10-10 | Vehicle headlight device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-226230 | 2012-10-11 | ||
JP2012226230 | 2012-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014057681A1 true WO2014057681A1 (ja) | 2014-04-17 |
Family
ID=50477163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/006045 WO2014057681A1 (ja) | 2012-10-11 | 2013-10-10 | 車両用前照灯装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9810392B2 (ja) |
EP (1) | EP2907732B1 (ja) |
JP (1) | JP5920480B2 (ja) |
CN (1) | CN104703869B (ja) |
WO (1) | WO2014057681A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014216103A (ja) * | 2013-04-23 | 2014-11-17 | 三菱電機株式会社 | 光軸調整装置 |
WO2015190112A1 (ja) * | 2014-06-11 | 2015-12-17 | ヤマハ発動機株式会社 | 鞍乗型車両 |
JP2019160805A (ja) * | 2014-07-08 | 2019-09-19 | 三菱電機株式会社 | 前照灯モジュール |
WO2020044418A1 (ja) * | 2018-08-28 | 2020-03-05 | 三菱電機株式会社 | 光照射装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015103649B4 (de) * | 2015-03-12 | 2022-09-29 | HELLA GmbH & Co. KGaA | Lichtmodul mit Mitteln zur Justage zwischen einer Lichtquelle und einem optischen Element |
CN108688744A (zh) * | 2017-03-03 | 2018-10-23 | 长城汽车股份有限公司 | 前照灯的调节机构 |
CN108528322B (zh) * | 2017-03-03 | 2021-11-19 | 长城汽车股份有限公司 | 前照灯控制系统及车辆 |
CN108692267A (zh) * | 2017-03-03 | 2018-10-23 | 长城汽车股份有限公司 | 前照灯的调节机构 |
CN111094840A (zh) * | 2017-08-24 | 2020-05-01 | 株式会社小糸制作所 | 车辆用灯具 |
FR3074118B1 (fr) * | 2017-11-30 | 2020-12-11 | Saint Gobain | Toit vitre lumineux de vehicule, vehicule l'incorporant et fabrication. |
WO2019123146A1 (en) * | 2017-12-22 | 2019-06-27 | Piaggio & C. S.P.A. | Tilting motorcycle with adjustment of the beam of light emitted by the headlights as a function of the rolling angle |
FR3078560B1 (fr) * | 2018-03-01 | 2020-09-18 | Valeo Vision | Module lumineux de projection d'un pictogramme pour vehicule automobile |
US11982927B2 (en) * | 2018-06-04 | 2024-05-14 | Mitsubishi Electric Corporation | Light irradiation device having two wedge prisms and an aberration correction surface |
CN110762476B (zh) * | 2018-07-27 | 2022-02-18 | 嘉兴海拉灯具有限公司 | 一种用于车辆的角灯结构 |
EP3616989A1 (fr) * | 2018-08-28 | 2020-03-04 | The Swatch Group Research and Development Ltd | Dispositif d'éclairage actif portable ou placé sur un véhicule |
WO2020216206A1 (zh) * | 2019-04-25 | 2020-10-29 | 苏州欧普照明有限公司 | 一种配光组件和照明装置 |
US11732859B2 (en) * | 2019-09-17 | 2023-08-22 | Psa Automobiles Sa | Vehicle headlamp |
US10823358B1 (en) * | 2019-12-19 | 2020-11-03 | Valeo Vision | Device and method of directing a light via rotating prisms |
CN113911236A (zh) * | 2021-10-14 | 2022-01-11 | 江苏爱玛车业科技有限公司 | 车灯控制装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09277974A (ja) * | 1996-04-15 | 1997-10-28 | Hideo Hayashi | 照射範囲を一定に保つ二輪車用前照灯 |
JPH10149702A (ja) * | 1996-11-18 | 1998-06-02 | Honda Motor Co Ltd | 自動二輪車の前照灯 |
JP2001347977A (ja) | 2000-06-06 | 2001-12-18 | Kawasaki Heavy Ind Ltd | 自動二輪車用ヘッドランプ装置 |
JP2002277549A (ja) * | 2001-03-19 | 2002-09-25 | Toshiba Corp | 撮像装置 |
JP2008041385A (ja) * | 2006-08-04 | 2008-02-21 | Ichikoh Ind Ltd | 車両用前照灯 |
JP2009120057A (ja) | 2007-11-15 | 2009-06-04 | Stanley Electric Co Ltd | 二輪車ヘッドライト用afs装置 |
JP2012066683A (ja) * | 2010-09-22 | 2012-04-05 | Kawasaki Heavy Ind Ltd | 乗物のバンク角検出装置 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR606316A (fr) | 1925-09-08 | 1926-06-11 | Perfectionnement aux phares d'automobiles | |
DE701365C (de) | 1938-02-11 | 1941-01-15 | Dr Med Fritz Weckert | Kraftwagenscheinwerfer |
JPS5782001U (ja) | 1980-11-08 | 1982-05-20 | ||
JPS6047738A (ja) | 1983-08-26 | 1985-03-15 | Honda Motor Co Ltd | 小型車輌用二灯式ヘツドライト装置 |
JP2549851B2 (ja) | 1986-12-16 | 1996-10-30 | 株式会社小糸製作所 | 車輌用前照灯の照射角修正装置 |
JPH05139203A (ja) * | 1991-11-15 | 1993-06-08 | Nippondenso Co Ltd | 車両用前照灯装置 |
JPH06261242A (ja) | 1993-03-03 | 1994-09-16 | Mitsubishi Electric Corp | 旋回撮像装置 |
JP3493611B2 (ja) | 1993-12-29 | 2004-02-03 | 本田技研工業株式会社 | 自動二輪車用の前照灯 |
JPH10228063A (ja) | 1997-02-13 | 1998-08-25 | Asahi Glass Co Ltd | 投射型光学装置 |
JP2000187180A (ja) | 1998-12-24 | 2000-07-04 | Denso Corp | 立体映像表示装置 |
JP2001091402A (ja) | 1999-09-24 | 2001-04-06 | Mitsubishi Precision Co Ltd | コンピュータによるウェッジプリズムの合成偏角算出方法およびウェッジプリズムの合成偏角算出プログラムを記録したコンピュータ読み取り可能な記録媒体 |
JP2002277812A (ja) | 2001-03-22 | 2002-09-25 | Nec Corp | レーザ走査方法並びに走査装置 |
JP2003121764A (ja) | 2001-10-18 | 2003-04-23 | Nippon Telegr & Teleph Corp <Ntt> | 回転型ウェッジプリズムを用いた光スイッチ及び光スイッチモジュール |
FR2844759B1 (fr) * | 2002-09-20 | 2007-04-06 | Ecole Nationale D Ingenieurs D | Phare gyrostable pour moto |
US6969183B2 (en) * | 2002-12-27 | 2005-11-29 | Ichikoh Industries, Ltd. | Digital lighting apparatus for vehicle, controller for digital lighting apparatus, and control program for digital lighting apparatus |
JPWO2008081859A1 (ja) * | 2006-12-29 | 2010-04-30 | パナソニック株式会社 | 光ピックアップ、光ディスク装置、複合カップリングレンズ、複合プリズム、及び光情報機器 |
JP4782051B2 (ja) | 2007-03-15 | 2011-09-28 | 株式会社小糸製作所 | 二輪車用前照灯 |
CN201162981Y (zh) | 2008-03-04 | 2008-12-10 | 常州星宇车灯股份有限公司 | 带棱镜的汽车前照灯 |
JP5157884B2 (ja) | 2008-12-25 | 2013-03-06 | 市光工業株式会社 | 車両用前照灯 |
JP5510805B2 (ja) | 2010-03-01 | 2014-06-04 | スタンレー電気株式会社 | 自動二輪車用プロジェクタ型ヘッドランプ |
US8398277B2 (en) * | 2010-03-05 | 2013-03-19 | Billie Brandt Fritz | Vehicle lighting system |
FR2963922B1 (fr) | 2010-08-18 | 2014-08-29 | Quality Electronics Design S A | Phare frontal pour vehicule a deux roues |
IT1402378B1 (it) | 2010-09-07 | 2013-09-04 | Clay Paky Spa | Proiettore da palcoscenico |
CN202125883U (zh) | 2011-06-08 | 2012-01-25 | 杭州瑾丽光电科技有限公司 | 双聚光镜加成像物镜的照明装置 |
US9140901B2 (en) * | 2011-08-12 | 2015-09-22 | Bae Systems Information And Electronic Systems Integration Inc. | Ultra wide band achromatic Risley prism scanner |
US20130241761A1 (en) * | 2012-03-16 | 2013-09-19 | Nikon Corporation | Beam steering for laser radar and other uses |
US9689549B2 (en) | 2012-09-07 | 2017-06-27 | Mitsubishi Electric Corporation | Vehicle headlight device |
US9717118B2 (en) * | 2013-07-16 | 2017-07-25 | Chia Ming Chen | Light control systems and methods |
-
2013
- 2013-10-10 JP JP2014540750A patent/JP5920480B2/ja active Active
- 2013-10-10 US US14/434,469 patent/US9810392B2/en active Active
- 2013-10-10 EP EP13845784.1A patent/EP2907732B1/en active Active
- 2013-10-10 WO PCT/JP2013/006045 patent/WO2014057681A1/ja active Application Filing
- 2013-10-10 CN CN201380052825.1A patent/CN104703869B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09277974A (ja) * | 1996-04-15 | 1997-10-28 | Hideo Hayashi | 照射範囲を一定に保つ二輪車用前照灯 |
JPH10149702A (ja) * | 1996-11-18 | 1998-06-02 | Honda Motor Co Ltd | 自動二輪車の前照灯 |
JP2001347977A (ja) | 2000-06-06 | 2001-12-18 | Kawasaki Heavy Ind Ltd | 自動二輪車用ヘッドランプ装置 |
JP2002277549A (ja) * | 2001-03-19 | 2002-09-25 | Toshiba Corp | 撮像装置 |
JP2008041385A (ja) * | 2006-08-04 | 2008-02-21 | Ichikoh Ind Ltd | 車両用前照灯 |
JP2009120057A (ja) | 2007-11-15 | 2009-06-04 | Stanley Electric Co Ltd | 二輪車ヘッドライト用afs装置 |
JP2012066683A (ja) * | 2010-09-22 | 2012-04-05 | Kawasaki Heavy Ind Ltd | 乗物のバンク角検出装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014216103A (ja) * | 2013-04-23 | 2014-11-17 | 三菱電機株式会社 | 光軸調整装置 |
WO2015190112A1 (ja) * | 2014-06-11 | 2015-12-17 | ヤマハ発動機株式会社 | 鞍乗型車両 |
US9487258B2 (en) | 2014-06-11 | 2016-11-08 | Yamaha Hatsudoki Kabushiki Kaisha | Straddled vehicle |
JP2019160805A (ja) * | 2014-07-08 | 2019-09-19 | 三菱電機株式会社 | 前照灯モジュール |
US11209143B2 (en) | 2014-07-08 | 2021-12-28 | Mitsubishi Electric Corporation | Headlight module and headlight device |
US11754247B2 (en) | 2014-07-08 | 2023-09-12 | Mitsubishi Electric Corporation | Headlight module and headlight device |
WO2020044418A1 (ja) * | 2018-08-28 | 2020-03-05 | 三菱電機株式会社 | 光照射装置 |
Also Published As
Publication number | Publication date |
---|---|
CN104703869B (zh) | 2017-10-24 |
CN104703869A (zh) | 2015-06-10 |
JP5920480B2 (ja) | 2016-05-18 |
EP2907732B1 (en) | 2018-01-31 |
US20150267888A1 (en) | 2015-09-24 |
US9810392B2 (en) | 2017-11-07 |
EP2907732A1 (en) | 2015-08-19 |
JPWO2014057681A1 (ja) | 2016-09-05 |
EP2907732A4 (en) | 2016-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5920480B2 (ja) | 車両用前照灯装置 | |
JP6542446B2 (ja) | 前照灯モジュール | |
JP6188879B2 (ja) | 前照灯モジュール及び前照灯装置 | |
US9822947B2 (en) | Lens member and vehicle lighting unit | |
CN108603644B (zh) | 前照灯模块和前照灯装置 | |
CN108474537B (zh) | 前照灯模块和前照灯装置 | |
CN107960117B (zh) | 前照灯模块及前照灯装置 | |
CN114270097B (zh) | 前照灯模块和前照灯装置 | |
JP6919266B2 (ja) | 光射出装置および画像表示システム | |
US11867371B2 (en) | Vehicular light guiding body and vehicular lamp unit | |
US11987174B2 (en) | Lighting device | |
KR102082897B1 (ko) | 헤드업 디스플레이 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13845784 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2014540750 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2013845784 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14434469 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |