JP2013020781A - Vehicular illumination lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a projector type vehicular illumination lamp forming variable light-distribution patterns which forms a first variable light-distribution pattern used for a high beam and a second variable light-distribution pattern that is a first variable light-distribution pattern missing a part thereof, capable of increasing brightness of the first variable light-distribution pattern without giving the glare to drivers of a front vehicle and an oncoming vehicle when forming the second variable light-distribution pattern while the brightness of the first variable light-distribution pattern is set to be increased.SOLUTION: A second light source 24 is arranged at a rear part of a movable shade 18 for selectively forming the first variable light-distribution pattern and the second variable light-distribution pattern, and a second reflector 26 is arranged in front of the second light source 24. Then, these second light source 24 and second reflector 26 are arranged at a position relationship wherein light from the second light source 24 is irradiated toward a front of the illumination lamp without making the light from the second light source 24 incident to a projection lens 12 by being reflected with the second reflector 26 when the movable shade 18 is moved to a shade releasing position and the light from the second light source 24 is not incident to the second reflector 26 by covering the light with the movable shade 18 when the movable shade 18 moves to a shade position.

Description

  The present invention relates to a so-called projector-type vehicular illuminating lamp, and more particularly to a vehicular illuminating lamp configured to form a variable light distribution pattern for a high beam.

  In general, a projector-type vehicular illumination lamp is configured to reflect light from a light source disposed rearward of the rear focus of the projection lens toward the projection lens by a reflector.

  “Patent Document 1” describes a vehicular illumination lamp configured to form a variable light distribution pattern for a high beam in such a projector-type vehicular illumination lamp.

  That is, in the vehicular illumination lamp described in “Patent Document 1”, a movable shade is disposed between the reflector and the projection lens, and this movable shade shields part of the reflected light from the reflector. It is configured to be able to move between a light shielding position to be performed and a light shielding cancellation position to cancel the light shielding position. When the movable shade is moved to the light shielding release position, the high beam light distribution pattern is formed as the first variable light distribution pattern. On the other hand, when the movable shade is moved to the light shielding position, a part of the high beam light distribution pattern is missing. The light distribution pattern is formed as a second variable light distribution pattern.

JP 2011-65960 A

  By adopting a configuration that can form a variable light distribution pattern for a high beam, such as the vehicular illumination lamp described in “Patent Document 1”, glare is given to the driver of the preceding vehicle or the oncoming vehicle. This makes it possible to improve the forward visibility of the driver of the vehicle without any problem.

  In such a vehicular illumination lamp, if the second light source and the second reflector that reflects the light from the second light source and irradiates the front of the lamp without being incident on the projection lens are additionally disposed, The brightness of the light distribution pattern for use can be increased.

  However, simply adopting such a configuration has the following problems.

  That is, since the light distribution pattern formed by the reflected light from the second reflector is formed in a fixed shape regardless of the position of the movable shade, the movable shade moves to the light shielding position and the second variable light distribution pattern. Is formed, a part of the light distribution pattern formed by the reflected light from the second reflector protrudes into the dark part formed by missing a part of the high beam light distribution pattern in the variable light distribution pattern. Will be formed. For this reason, there is a problem that glare is given to the driver of the preceding vehicle or the oncoming vehicle.

  The present invention has been made in view of such circumstances, and in a projector-type vehicle illumination lamp configured to form a variable light distribution pattern for a high beam, the first variable light distribution pattern is used as the first variable light distribution pattern. When the second variable light distribution pattern in which a part of the high beam light distribution pattern is missing is formed, the brightness of the first variable light distribution pattern is not given to the driver of the preceding vehicle or the oncoming vehicle without glare. An object of the present invention is to provide a vehicular illumination lamp capable of increasing the height.

  In the present invention, the second light source and the second reflector are additionally arranged, and the positional object is devised to achieve the above object.

That is, the vehicular illumination lamp according to the present invention is:
A vehicular illumination lamp configured to form a variable light distribution pattern for a high beam,
A projection lens, a light source disposed behind the rear focal point of the projection lens, a reflector that reflects light from the light source toward the projection lens, and between the reflector and the projection lens, A light-shielding position that shields a part of the reflected light from the reflector in order to eliminate a part of the high-beam light distribution pattern, and a movable shade that is arranged so as to be movable between the light-shielding release position that releases the light-shielding pattern. In the vehicular illumination lamp provided,
A second light source is disposed behind the movable shade, and a second reflector is disposed in front of the movable shade,
The second light source and the second reflector irradiate the front of the lamp without reflecting the light from the second light source by the second reflector and entering the projection lens when the movable shade moves to the light shielding release position. On the other hand, when the movable shade is moved to the light shielding position, the light from the second light source is shielded by the movable shade so as not to be incident on the second reflector. It is.

  The type of the “light source” is not particularly limited, and for example, a light emitting part of a discharge bulb, a filament of a halogen bulb, or a light emitting chip of a light emitting element such as a light emitting diode can be employed.

  The “second light source and second reflector” irradiates the light from the second light source to the front of the lamp without being reflected by the second reflector and entering the projection lens when the movable shade moves to the light shielding release position. When the movable shade is moved to the light shielding position, the light source from the second light source is shielded by the movable shade so as not to enter the second reflector. The arrangement is not particularly limited. At that time, if it is within a range that does not give glare to the driver of the preceding vehicle or oncoming vehicle, until the light from the second light source is shielded by the movable shade so as not to enter the second reflector at all. , Not always necessary.

  As shown in the above configuration, the vehicular illumination lamp according to the present invention is configured as a projector-type vehicular illumination lamp that forms a variable light distribution pattern for a high beam. A second light source is disposed behind the movable shade for selectively forming the high beam light distribution pattern and the second variable light distribution pattern lacking a part thereof, and the second light source is disposed in front of the second light source. 2 reflectors are arranged, and when the movable shade moves to the light shielding release position, the second light source and the second reflector reflect the light from the second light source by the second reflector and enter the projection lens. When the movable shade moves to the light blocking position, the light from the second light source is shielded by the movable shade and incident on the second reflector. Because it is arranged in a positional relationship not to, it is possible to obtain the following effects.

  That is, the first variable light distribution pattern is formed when the movable shade is moved to the light shielding release position. At this time, the light from the second light source is reflected by the second reflector and then does not enter the projection lens. Since the light is irradiated in front of the lamp, the brightness of the first variable light distribution pattern can be increased by the light distribution pattern formed thereby.

  On the other hand, the second variable light distribution pattern in which a part of the first variable light distribution pattern is missing is formed when the movable shade is moved to the light shielding position. At this time, the light from the second light source is moved to the movable shade. And is not incident on the second reflector. Therefore, in the second variable light distribution pattern, a part of the first variable light distribution pattern is lost, and the reflected light from the second reflector is formed in the dark part. It is possible to prevent a part of the formed light distribution pattern from protruding and being formed. As a result, it is possible to prevent glare from being given to the driver of the preceding vehicle or the oncoming vehicle.

  As described above, according to the present invention, in the projector-type vehicle illumination lamp configured to form the high beam variable light distribution pattern, a part of the high beam light distribution pattern as the first variable light distribution pattern. When the second variable light distribution pattern lacking is formed, the brightness of the first variable light distribution pattern can be increased without giving glare to the driver of the preceding vehicle or the oncoming vehicle.

  In the above configuration, if the third reflector that reflects the light from the second light source toward the projection lens is arranged behind the movable shade, the light distribution formed by the reflected light from the third reflector. The brightness of the variable light distribution pattern for high beam can be further increased by the pattern.

  In the above-described configuration, the first light beam is movable between a light shielding position for shielding a part of the reflected light from the reflector and a light shielding release position for releasing the same to form a low beam light distribution pattern between the reflector and the projection lens. If it is set as the structure by which 2 movable shades are arrange | positioned, it can be set as the structure which can switch the beam lamp of a vehicle between a low beam and a high beam. In this case, the second light source and the second reflector are arranged in a positional relationship so that the light from the second light source reaches the second reflector so that it passes above the second movable shade moved to the light shielding release position. Then, the movable shade and the second movable shade can be arranged without difficulty.

  In the above configuration, the light source is composed of a light emitting element disposed upward on or near the optical axis of the projection lens, and the second light source is disposed forward of the light source and downward on the upper side of the optical axis. If the second reflector is configured to be disposed below the optical axis after the light emitting element is configured, the light source, the second light source, and the second reflector can be disposed in a compact manner.

The front view which shows the vehicle lighting device which concerns on one Embodiment of this invention in the state in which the movable shade is in a light-shielding release position, and the 2nd movable shade is in a light-shielding position II-II sectional view of FIG. FIG. 2 is a view similar to FIG. 2, showing the vehicle illumination lamp in a state where the second movable shade is moved from the state shown in FIG. 2 to the light shielding release position. The perspective view which takes out and shows the main component from the said vehicle lighting device in the state shown in FIG. FIG. 3 is a view similar to FIG. 3, showing the vehicle illumination lamp in a state where the movable shade is moved from the state shown in FIG. 3 to the light shielding position. The perspective view which takes out and shows a main component from the said vehicle lighting device in the state shown in FIG. It is a figure which shows in perspective the variable light distribution pattern formed on the virtual vertical screen arrange | positioned in the position of the lamp front 25m with the light irradiated from the said vehicle lighting lamp ahead, (a) is 1st. FIG. 5B is a diagram showing the second variable light distribution pattern. The figure which decomposes | disassembles the said variable light distribution pattern into several light distribution patterns

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a vehicular illumination lamp 10 according to an embodiment of the present invention in a state where a movable shade 18 is in a light shielding release position and a second movable shade 28 is in a light shielding position. 2 is a sectional view taken along the line II-II.

  As shown in these drawings, the vehicular illumination lamp 10 according to the present embodiment is configured as a projector-type lamp unit, and is used in a state of being incorporated in a lamp body or the like (not shown).

  This vehicular illumination lamp 10 is configured to form a variable light distribution pattern for a high beam.

  In order to realize this, the vehicular illumination lamp 10 includes a projection lens 12, a light source 14 disposed behind the rear focal point F of the projection lens 12, and light from the light source 14. The reflector 16 is configured to include a movable shade 18 disposed between the reflector 16 and the projection lens 12 and a holder 40 that supports them.

  The projection lens 12 is constituted by a plano-convex aspheric lens having a convex front surface and a flat rear surface. The projection lens 12 is supported by the holder 40 via the lens holder 20.

  The light source 14 is composed of a light emitting element disposed upward on the optical axis Ax of the projection lens 12. Specifically, the light source 14 is composed of a white light emitting diode having a horizontally elongated light emitting chip.

  The reflector 16 is disposed so as to cover the light source 14 from above. The reflecting surface 16a of the reflector 16 has a long surface coaxial with the optical axis Ax and is formed of a substantially elliptical curved surface having the light emission center of the light source 14 as a first focal point, and the lower end edge of the reflecting surface 16a is the optical axis Ax. It is located on a horizontal plane including The reflecting surface 16a reflects the light from the light source 14 in a manner that substantially converges in the vicinity of the front of the rear focal point F in the vertical plane and displaces the convergence position in the horizontal plane forward. It is like that.

  The movable shade 18 is in the vicinity of the front of the rear focal point F of the projection lens 12 and shields a part of the reflected light from the reflector 16 (a position indicated by a two-dot chain line in FIG. 1) and cancels the light shielding. It arrange | positions so that it can move between positions (position shown as a continuous line in FIG. 1).

  The movable shade 18 is a plate-like member disposed along a vertical plane orthogonal to the optical axis Ax, and at the right end thereof (the left end when viewed from the front of the lamp, the same applies hereinafter) with respect to the actuator 42 in the front-rear direction. Is supported so as to be rotatable around an axis Ax1 extending in the direction of A. The actuator 42 is driven to move the movable shade 18 between the light shielding position and the light shielding release position.

  When the movable shade 18 is moved to the light shielding position, its upper end edge 18a extends horizontally in the vicinity below the optical axis Ax, and its left end edge 28b extends along a vertical plane including the optical axis Ax. It has become so.

  In the vehicular illumination lamp 10, when the movable shade 18 moves to the light shielding release position, the high beam light distribution pattern is formed as the first variable light distribution pattern PH1 (see FIG. 7A), When the movable shade 18 moves to the light shielding position, a light distribution pattern in which a part of the high beam light distribution pattern is missing is formed as a second variable light distribution pattern PH2 (see FIG. 7B). .

  As shown in FIGS. 1 and 2, a second light source 24 is disposed behind the movable shade 18, and a second reflector 26 is disposed in front of the movable shade 18.

  FIG. 3 is a view similar to FIG. 2, showing the vehicular illumination lamp 10 in a state where the second movable shade 26 is moved from the state shown in FIG. 2 to the light shielding release position. 4 is a perspective view showing main components extracted from the vehicular illumination lamp 10 in the state shown in FIG.

  On the other hand, FIG. 5 is a view similar to FIG. 3, showing the vehicular illumination lamp 10 in a state where the movable shade 16 is moved from the state shown in FIG. 3 to the light shielding position. FIG. 6 is a perspective view showing main components extracted from the vehicular illumination lamp 10 in the state shown in FIG.

  As shown in these drawings, the second light source 24 and the second reflector 26 reflect the light from the second light source 24 by the second reflector 26 when the movable shade 18 moves to the light shielding release position, and the projection lens 12. While the light is irradiated to the front of the lamp without being incident, the light from the second light source 24 is shielded by the movable shade 18 and is not incident on the second reflector 26 when the movable shade 18 moves to the light shielding position. ing.

  In order to realize this, the second light source 24 is composed of a light emitting element disposed on the front side of the light source 14 and on the lower side of the optical axis Ax. Specifically, the light source 24 is composed of a white light emitting diode having a horizontally elongated light emitting chip.

  Further, the second reflector 26 is disposed on the lower side than the optical axis Ax of the projection lens 12. Specifically, the second reflector 26 is disposed on the lower right side of the projection lens 12. The reflecting surface 26a of the second reflector 26 is formed with a paraboloid of revolution that focuses on the second light source 24 as a reference surface, and reflects the light from the second light source 24 as slightly diffusing light. ing.

  A third reflector 36 that reflects the light from the second light source 24 toward the projection lens 12 is disposed behind the movable shade 18.

  The third reflector 36 is disposed so as to cover the second light source 24 from below. The reflecting surface 36a of the reflector 36 has a long axis coaxial with the optical axis Ax and is formed of a substantially elliptical curved surface having the light emission center of the second light source 24 as a first focal point. It lies on a horizontal plane including the axis Ax. And this reflective surface 36a is the aspect which makes the light from the 2nd light source 24 substantially converge in the diagonally upper front of the rear side focus F in a vertical surface, and displaces the convergence position to the front side in a horizontal surface. It is supposed to be reflected by.

  The vehicular illumination lamp 10 according to the present embodiment is configured not only to form a high beam variable light distribution pattern, but also to selectively form a low beam light distribution pattern.

  In order to realize this, a second movable shade 28 is disposed between the reflector 16 and the projection lens 12.

  The second movable shade 28 has a light shielding position (a position indicated by a solid line in FIG. 1) for shielding a part of the reflected light from the reflector 16 and a light shielding release position (FIG. 1) for canceling this in the vicinity of the rear of the movable shade 18. The position is indicated so as to be movable between the positions indicated by the two-dot chain line in FIG.

  The second movable shade 28 is a plate-like member disposed along a vertical plane orthogonal to the optical axis Ax, and is supported by the actuator 44 so as to be rotatable at the left end portion thereof. The actuator 44 is driven so that the second movable shade 28 is moved between the light shielding position and the light shielding release position.

  When the second movable shade 28 is moved to the light-shielding position, the upper edge 28a of the second movable shade 28 extends in a stepwise manner in the horizontal direction so as to pass through the rear focal point F of the projection lens 12.

  In the vehicular illumination lamp 10, in the low beam, only the light source 14 is turned on in a state where the second movable shade 28 is moved to the light shielding position, whereby the low beam light distribution pattern PL (see FIG. 8A). In the high beam, the second light source 24 is additionally lit in a state where the second movable shade 28 is moved to the light shielding release position, whereby the high beam variable light distribution patterns PH1 and PH2 (FIG. 7 (a), (See (b)).

  At that time, the second light source 24 and the second reflector 26 have a positional relationship in which the light from the second light source 24 reaches the second reflector 26 so as to pass above the second movable shade 28 that has moved to the light shielding release position. Is arranged in.

  The second light source 24, the second and third reflectors 26 and 36, the second movable shade 28 and the actuators 42 and 44 are also supported by the holder 40.

  FIG. 7 is a perspective view showing a variable light distribution pattern formed on a virtual vertical screen arranged at a position 25 m ahead of the lamp by light irradiated forward from the vehicular illumination lamp 10, () Is a diagram showing a first variable light distribution pattern, and (b) is a diagram showing a second variable light distribution pattern.

  The first variable light distribution pattern PH1 shown in FIG. 7A is a high beam light distribution pattern, and the light source 14 and the second movable shade 28 are moved to the light-shielding release position. The second light source 24 is formed by turning on simultaneously.

  The first variable light distribution pattern PH1 is formed as a combined light distribution pattern in which three light distribution patterns P1A, P2, and P3A are superimposed.

  The light distribution pattern P1A is a light distribution pattern for forming the basic shape of the first variable light distribution pattern PH1, as shown in FIG. 8B, and is emitted from the light source 14 and reflected by the reflector 16. This is a light distribution pattern formed by light that is reflected and then irradiated forward of the lamp through the projection lens 12.

  As shown in FIG. 8 (d), the light distribution pattern P2 is a relatively small light distribution pattern for increasing the central luminous intensity of the first variable light distribution pattern PH1 and sufficiently ensuring far visibility. This is a light distribution pattern formed by light emitted from the second light source 24 and reflected by the second reflector 26 and then irradiated to the front of the lamp without entering the projection lens 12.

  As shown in FIG. 8E, the light distribution pattern P3A is a light distribution pattern for increasing the overall brightness of the first variable light distribution pattern PH1, and is emitted from the second light source 24. This is a light distribution pattern formed by light that is reflected by the third reflector 36 and then irradiated forward of the lamp through the projection lens 12.

  On the other hand, the second variable light distribution pattern PH2 shown in FIG. 7B is a light distribution pattern in which a part of the high-beam light distribution pattern is missing, and the second movable shade 28 moves to the light shielding release position. The light source 14 and the second light source 24 are turned on simultaneously with the movable shade 18 moved to the light shielding position.

  In the second variable light distribution pattern PH2, the horizontal cut-off line CL3 and the vertical cut-off line CL4 are formed by the upper end edge 18a and the left end edge 18b of the movable shade 18 at the light-shielding position. It is a light distribution pattern in which the upper right part of PH1 is missing and becomes a dark part.

  The second variable light distribution pattern PH2 is formed as a combined light distribution pattern in which two light distribution patterns P1B and P3B are superimposed.

  The light distribution pattern P1B is a light distribution pattern for forming the basic shape of the second variable light distribution pattern PH2, as shown in FIG. 8C. The light distribution pattern P1B is emitted from the light source 14 and reflected by the reflector 16. This is a light distribution pattern formed by light that is reflected and then irradiated forward of the lamp through the projection lens 12. This light distribution pattern P1B has a horizontal cutoff line CL3 and a vertical cutoff line CL4.

  The light distribution pattern P3B is a light distribution pattern for increasing the overall brightness of the second variable light distribution pattern PH2, as shown in FIG. 8 (f), and is emitted from the second light source 24. This is a light distribution pattern formed by light that is reflected by the third reflector 36 and then irradiated forward of the lamp through the projection lens 12. This light distribution pattern P3B also has a horizontal cutoff line CL3 and a vertical cutoff line CL4.

  In the second variable light distribution pattern PH2, the light distribution pattern P2 that has contributed to the formation of the first variable light distribution pattern PH1 does not contribute to the formation. This is because the light from the second light source 24 does not enter the second reflector 26 by the movable shade 18 at the light shielding position.

  Therefore, in the second variable light distribution pattern PH2, the upper right portion of the horizontal cutoff line CL3 and the vertical cutoff line CL4 is maintained as a dark portion, thereby giving glare to the driver of the oncoming vehicle 2. It is designed to prevent this from happening.

  As shown in FIG. 8A, the low beam light distribution pattern PL is different from the light distribution pattern P1A (see FIG. 8B) for forming the basic shape of the first variable light distribution pattern PH1. Thus, the light distribution pattern is formed with the upper portion missing.

  The low-beam light distribution pattern PL is a left-beam low-beam light distribution pattern, and horizontal cut-off lines CL1 and CL2 having an elbow point E and having left and right steps are formed at the upper end portion thereof. The horizontal cut-off lines CL1 and CL2 having different left and right steps are formed by the upper end edge 28a of the second movable shade 28 moved to the light shielding position.

  Next, the effect of this embodiment is demonstrated.

  The vehicular illumination lamp 10 according to the present embodiment is configured as a projector-type vehicular illumination lamp that forms a high-beam variable light distribution pattern, but the high-beam light distribution as the first variable light distribution pattern PH1. A second light source 24 is disposed behind the movable shade 18 for selectively forming the pattern and the second variable light distribution pattern PH2 that is partially missing, and the second light source 24 is disposed in front of the second light source 24. The reflector 26 is disposed, and the second light source 24 and the second reflector 26 reflect the light from the second light source 24 by the second reflector 26 when the movable shade 18 moves to the light shielding release position. While irradiating the front of the lamp without being incident on the projection lens 12, while the movable shade 18 is moved to the light shielding position, the light from the second light source 24 is allowed. Because it is arranged in shielding to be allowed not positional relationship enters the second reflector 26 in the shade 18, it is possible to obtain the following effects.

  That is, the first variable light distribution pattern PH1 is formed when the movable shade 18 moves to the light shielding release position. At this time, the light from the second light source 24 is reflected by the second reflector 26 and then the projection lens 12. Therefore, the brightness of the first variable light distribution pattern PH1 can be increased by the light distribution pattern P2 formed thereby.

  On the other hand, the second variable light distribution pattern in which a part of the first variable light distribution pattern PH1 is missing is formed when the movable shade 18 moves to the light shielding position. At this time, the light from the second light source 24 Is shielded by the movable shade 18 and does not enter the second reflector 26, and therefore, in the second variable light distribution pattern, a part of the first variable light distribution pattern PH1 is missing and is formed in the upper right dark part. It is possible to prevent a part of the light distribution pattern P2 formed by the reflected light from the second reflector 26 from protruding. As a result, it is possible to prevent glare from being given to the driver of the oncoming vehicle 2.

  As described above, according to the present embodiment, in the projector-type vehicle lighting device 10 configured to form the high-beam variable light distribution pattern, the high-beam light distribution pattern as the first variable light distribution pattern PH1. The brightness of the first variable light distribution pattern PH1 can be increased without giving glare to the driver of the oncoming vehicle 2 when the second variable light distribution pattern PH2 in which a part of the second variable light distribution pattern PH2 is missing is formed. .

  In the present embodiment, the third reflector 36 that reflects the light from the second light source 24 toward the projection lens 12 is disposed behind the movable shade 18, so that the reflection from the third reflector 36 is performed. The brightness of the high-beam variable light distribution patterns PH1 and PH2 can be further increased by the light distribution patterns P3A and P3B formed by light.

  Further, in the present embodiment, a light shielding position for shielding a part of the reflected light from the reflector 16 and a light shielding for canceling the same to form a low beam light distribution pattern PL between the reflector 16 and the projection lens 12. Since the second movable shade 28 that can move between the release positions is disposed, the vehicular illumination lamp 10 can be configured to be able to switch between a low beam and a high beam.

  At this time, in the present embodiment, the second light source 24 has a positional relationship in which the light from the second light source 24 reaches the second reflector 26 so as to pass above the second movable shade 28 that has moved to the light shielding release position. And since the 2nd reflector 26 is arrange | positioned, the movable shade 18 and the 2nd movable shade 28 can be arrange | positioned without difficulty.

  In the present embodiment, the light source 14 is composed of a light emitting element disposed upward on the optical axis Ax of the projection lens 12, and the second light source 24 is on the front side of the light source 14 and the optical axis. Since the second reflector 26 is disposed below the optical axis Ax, the light source 14, the second light source 24, and the second light source 24 are configured by light emitting elements disposed downward from the upper side of Ax. The 2nd reflector 26 can be arrange | positioned compactly.

  In the above embodiment, the light distribution pattern P2 formed by the light emitted from the second light source 24 and reflected by the second reflector 26 and then irradiated to the front of the lamp without entering the projection lens 12 is the first light distribution pattern P2. The variable light distribution pattern PH1 has been described as being formed as a relatively small light distribution pattern for increasing the central luminous intensity and sufficiently ensuring the distance visibility, but instead of doing so, a relatively large light distribution pattern It is also possible to form as.

  In the said embodiment, although 2nd variable light distribution pattern PH2 demonstrated as what was formed as a light distribution pattern whose upper right part becomes a dark part with respect to 1st variable light distribution pattern PH1, the said embodiment. If the second movable shade 28 disposed in a substantially symmetrical position relative to the optical axis Ax is used with respect to the second movable shade 28, the second variable light distribution pattern is changed to the first variable light distribution pattern. The pattern PH1 can be formed as a light distribution pattern whose upper left portion is a dark portion. By adopting such a configuration, it is possible to prevent glare from being given to the driver of the preceding vehicle when the second variable light distribution pattern is formed.

  In the above embodiment, the vehicular illumination lamp 10 has been described as being configured to form the left light distribution light beam distribution pattern as the low beam light distribution pattern PL, but the right light distribution low beam has been described. Even when the light distribution pattern is configured to be formed, the same effect can be obtained by adopting the same configuration as that of the above embodiment.

  In addition, the numerical value shown as a specification in the said embodiment is only an example, and of course, you may set these to a different value suitably.

2 Oncoming vehicle 10 Vehicle illumination lamp 12 Projection lens 14 Light source 16 Reflector 16a, 26a, 36a Reflecting surface 18 Movable shade 18a, 28a Upper edge 20 Lens holder 24 Second light source 26 Second reflector 28 Second movable shade 28b Left end edge 36 Third reflector 40 Holder 42, 44 Actuator Ax Optical axis Ax1 Axis CL1, CL2 Horizontal cut-off line with different left and right steps CL3 Horizontal cut-off line CL4 Vertical cut-off line E Elbow point F Rear focus PH1 First variable light distribution pattern PH2 Second Variable light distribution pattern PL Low beam light distribution pattern P1A, P1B, P2, P3A, P3B Light distribution pattern

Claims (4)

A vehicular illumination lamp configured to form a variable light distribution pattern for a high beam,
A projection lens, a light source disposed behind the rear focal point of the projection lens, a reflector that reflects light from the light source toward the projection lens, and between the reflector and the projection lens, A light-shielding position that shields a part of the reflected light from the reflector in order to eliminate a part of the high-beam light distribution pattern, and a movable shade that is arranged so as to be movable between the light-shielding release position that releases the light-shielding pattern. In the vehicular illumination lamp provided,
A second light source is disposed behind the movable shade, and a second reflector is disposed in front of the movable shade,
The second light source and the second reflector irradiate the front of the lamp without reflecting the light from the second light source by the second reflector and entering the projection lens when the movable shade moves to the light shielding release position. On the other hand, the vehicle is arranged in such a positional relationship that when the movable shade moves to the light shielding position, the light from the second light source is shielded by the movable shade and does not enter the second reflector. Lighting fixtures.   The vehicular illumination lamp according to claim 1, wherein a third reflector for reflecting light from the second light source toward the projection lens is disposed behind the movable shade. A second light movable between a light shielding position for shielding a part of the reflected light from the reflector and a light shielding release position for releasing the same to form a low beam light distribution pattern between the reflector and the projection lens. A movable shade is placed,
The second light source and the second reflector are arranged in a positional relationship so that the light from the second light source reaches the second reflector so as to pass above the second movable shade moved to the light shielding release position. The vehicular illumination lamp according to claim 2, wherein: The light source is composed of a light emitting element arranged upward on or near the optical axis of the projection lens,
The second light source is composed of a light emitting element disposed on the front side of the light source and downward on the upper side of the optical axis,
The vehicular illumination lamp according to any one of claims 1 to 3, wherein the second reflector is disposed below the optical axis.

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