JP2006216455A - Vehicular marker lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide originality for the design of a vehicular marker lamp and to improve visibility for a driver of a succeeding vehicle or the like. <P>SOLUTION: A reflecting surface 14a of a reflector 14 is formed into a structure comprising: a plurality of fan-shaped reflecting areas 14aA radially arranged centering an optical axis Ax; and a plurality of rib-like reflecting areas 14aB radially extending nearly at a certain width along border lines thereof. Then, each fan-shaped reflecting area 14aA is radially divided into a plurality of first diffusive reflecting elements 14sA, and each rib-like reflecting area 14aB is divided into a plurality of second diffusive reflecting elements 14sB at a pitch shorter than it. In lighting a lamp, a linear bright part group where the sizes of bright parts are gradually increased toward the outside in the radial direction is produced by each fan-shaped reflecting area 14aA, and a linear bright part group where bright parts having a nearly equal size are arranged in a chain-like form is produced by each rib-like reflecting area 14aB. Therefore, a strong brilliant feeling is provided to a lamp observer and its shining manner is well-modulated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicular marker lamp, and more particularly to a configuration of a reflecting surface of the reflector.

  In general, a vehicle marker lamp includes a light source disposed on an optical axis extending in the front-rear direction of the lamp, a reflector having a reflection surface that diffuses and reflects light from the light source toward the front of the lamp, and a front side of the lamp of the reflector However, in such a vehicle marker lamp, it is possible to improve the visibility of the vehicle for a lamp observer such as a following vehicle driver. This is important for improving driving safety.

  In relation to this, in “Patent Document 1”, the reflection surface of the reflector is divided radially around the optical axis, and the plurality of fan-shaped reflection regions formed thereby are further divided in the radial direction, A diffuse reflection element is assigned to each segment, and at that time, a convex reflection element and a concave reflection element are alternately arranged in the radial direction and the circumferential direction. In addition, a vehicular beacon lamp is described in which the entire reflecting surface appears to shine in a scattered manner.

JP 2001-167614 A

  By adopting the lamp configuration described in the above-mentioned “Patent Document 1”, it is possible to give a strong sparkle feeling to the lamp observer, thereby improving the visibility of the following vehicle driver and the like.

  However, in the vehicle marker lamp described in “Patent Document 1”, although the entire reflecting surface appears to shine in a scattered manner, the way of shining is substantially uniform, so that it is slightly poor, and therefore the following vehicle There is still room for improvement in further improving the visibility of drivers and the like.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the marker lamp for vehicles which can aim at the improvement of visibility with respect to a following vehicle driver.

  The present invention is intended to achieve the above object by devising the configuration of the reflecting surface of the reflector.

That is, the vehicle marker lamp according to the present invention is
A light source disposed on an optical axis extending in the front-rear direction of the lamp, a reflector having a reflecting surface that diffusely reflects light from the light source toward the front of the lamp, and a translucent cover provided on the front side of the lamp of the reflector; In a vehicular marker lamp comprising:
A plurality of fan-shaped reflection areas arranged radially with the optical axis as the center, and a boundary line between the fan-shaped reflection areas at a position protruding forward of the lamp from the plurality of fan-shaped reflection areas A plurality of rib-like reflective regions extending in a radial direction with a substantially constant width along the
Each of the fan-shaped reflection areas is divided into a plurality of first diffuse reflection elements in the radial direction, and each of the rib-like reflection areas has a plurality of first diffuse reflection elements at a pitch shorter than that of the plurality of first diffusion reflection elements in the radial direction. It is divided into two diffuse reflection elements.

  The type of the “vehicle marker lamp” is not particularly limited, and for example, a tail lamp, a stop lamp, a tail & stop lamp, a turn signal lamp, a clearance lamp, and the like can be employed.

  The material of the “translucent cover” is not particularly limited as long as it is a member having translucency, and may be formed through the entire surface thereof. A lens element may be formed on the part.

  Each of the “rib-like reflection areas” is formed to extend in a radial direction with a substantially constant width along a boundary line between the fan-shaped reflection areas at a position protruding forward of the lamp from the plurality of fan-shaped reflection areas. If it is a thing, specific structures, such as the width dimension and the amount of front protrusions, are not specifically limited. Here, “substantially constant width” means that one rib-like reflection region as a whole has a constant width or a width close to this when viewed from the front of the lamp. In addition to those formed with a constant width, a part having a wide part or a narrow part or a part formed by repeating a wide part and a narrow part may be used. Further, each of the “rib-like reflective regions” is not necessarily formed so as to extend linearly in the radial direction, and is formed so as to extend in a zigzag shape or a curved shape. Also good.

  As long as the “several fan-shaped reflection areas” are arranged radially around the optical axis, the number of arrangement in the circumferential direction is not particularly limited, and the center of each of the fan-shaped reflection areas is not limited. The corners may be set to equal values or different values.

  The specific value of the pitch in the radial direction of the “plurality of first diffuse reflection elements” is not particularly limited, and the pitch may be a constant value for each first diffuse reflection element. However, the value may be different for each first diffuse reflection element.

  The pitch in the radial direction of each of the “second diffuse reflection elements” is not particularly limited as long as the pitch is set to be shorter than the plurality of first diffuse reflection elements. The pitch may be a constant value for each second diffuse reflection element or may be a value different for each second diffuse reflection element. Here, “the pitch shorter than the plurality of first diffuse reflection elements” means that the average pitch of the plurality of second diffuse reflection elements is shorter than the average pitch of the plurality of first diffuse reflection elements.

  If each of the “first diffuse reflection elements” and each of the “second diffuse reflection elements” is configured to diffusely reflect light from the light source toward the front of the lamp, the magnitude of the curvature is It is not particularly limited.

  As shown in the above configuration, the vehicle marker lamp according to the present invention has a configuration in which the reflecting surface of the reflector includes a plurality of fan-shaped reflection areas and a plurality of rib-shaped reflection areas, and each fan-shaped reflection. The region is divided into a plurality of first diffuse reflection elements in the radial direction, and each rib-like reflection region is divided into a plurality of second diffuse reflection elements at a shorter pitch than the plurality of first diffuse reflection elements in the radial direction. Therefore, the following effects can be obtained.

  That is, since the light from the light source is diffusely reflected toward the front of the lamp in each first diffuse reflection element and each second diffuse reflection element, when the reflection surface of the reflector is observed from the front with the light source turned on, The plurality of fan-shaped reflection regions appear to shine in a scattered manner in a row at predetermined intervals in the radial direction for each sector-shaped reflection region, and a row of bright portions composed of the plurality of bright portions is radially formed. It looks like it is placed. Further, at this time, the plurality of rib-like reflection regions appear to shine in a scattered manner in a row at predetermined intervals in the radial direction for each rib-like reflection region, and a row of these plurality of bright portions It can be seen in the state where the bright part groups are arranged radially.

  At that time, each fan-shaped reflection region gradually increases in the circumferential width outward in the radial direction, whereas each rib-like reflection region extends in the radial direction with a substantially constant width, and each rib The plurality of second diffusive reflecting elements that constitute the reflective area are arranged at a shorter pitch than the plurality of first diffusive reflecting elements that constitute each fan-shaped reflective area. The bright portion group is arranged so that the bright portion gradually increases toward the outer side in the radial direction, whereas the row-like bright portion group generated by each rib-like reflection region is substantially the same size. The small bright parts are arranged in a chain.

  For this reason, while being able to give a strong sparkle feeling to a lamp observer, it is possible to sharpen the way it shines.

  Furthermore, since each rib-like reflection area is located at a position protruding forward of the lamp relative to each fan-shaped reflection area, when the viewpoint is moved from the lamp front direction to either the top, bottom, left, or right, each fan-shaped reflection area The positional relationship between the generated line-like bright part group and the line-like bright part group generated by each rib-like reflection region changes, and this allows the lamp design to have a three-dimensional effect.

  Thus, according to this invention, the novelty of a lamp design can be improved and, thereby, the visibility to a following vehicle driver etc. can be improved. As a result, the traveling safety of the vehicle can be improved.

  In addition, the vehicular marker lamp according to the present invention is in a position where each rib-like reflection area protrudes forward of the lamp with respect to each fan-like reflection area. A three-dimensional feeling can be given, and thereby the appearance of the lamp can be enhanced.

  In the above configuration, each of the first diffuse reflection elements has a curvature different from that of the paraboloidal surface with respect to the first paraboloidal surface having the optical axis as a central axis and focusing on a point near the light source. A second rotation formed by a curved surface, and each second diffuse reflection element having the optical axis as a central axis and a point near the light source as a focal point, and having a focal length shorter than that of the first paraboloid of revolution If it is formed with a curved surface having a curvature different from that of the paraboloid with respect to the paraboloid, each rib-like reflection area can be reliably projected from the fan-shaped reflection area to the lamp front side over the entire length thereof, Thereby, the three-dimensional effect of the reflective surface of a reflector can be ensured reliably. Moreover, when viewed from the front of the lamp, each of the first diffuse reflection elements and each of the second diffuse reflection elements can be made to shine at substantially the center of the segment to which they are assigned. Each can have regularity to enhance the harmony of the lamp design.

  In the above configuration, the pitch in the radial direction of the plurality of first diffuse reflection elements is set to gradually increase as the distance from the optical axis increases, while the pitch in the radial direction of the plurality of second diffuse reflection elements is substantially constant. If set to a value, the following effects can be obtained.

  That is, if the pitch in the radial direction of the plurality of first diffuse reflection elements is set so as to gradually increase as the distance from the optical axis increases, the plurality of glitters constituting the row-like glitter portion group generated by each fan-shaped reflection region is formed. The portion can be made denser as it approaches the optical axis. As a result, the bright portion closer to the optical axis can be seen at a farther position based on the principle of the linear perspective, so that the reflecting surface of the reflector can have a sense of depth. In addition, at that time, with respect to the plurality of second diffuse reflection elements, the plurality of bright portions constituting the row-like bright portion group generated by each rib-shaped reflection region by setting the radial pitch to a substantially constant value. As for all, since they are seen at substantially the same distance, the depth can be further enhanced by the comparison.

  As a result, it is possible to give the reflecting surface of the reflector a sense of depth without increasing the depth dimension of the lamp, thereby further enhancing the novelty of the lamp design.

  Further, in the above configuration, if the plurality of first diffuse reflection elements constituting each fan-shaped reflection area are arranged so as to be shifted by a substantially half pitch in the radial direction between the adjacent fan-shaped reflection areas, the fan-shaped reflection areas are generated. It is possible to change the way the row-like brilliant portion groups shine among a plurality of fan-shaped reflection regions, thereby providing a sharpness.

  In the above-described configuration, the first diffuse reflection element and the first rotation paraboloid are formed by forming a plurality of first diffuse reflection elements constituting each fan-shaped reflection region with a curved surface that is convex with respect to the first rotation paraboloid. When the configuration is such that the first diffuse reflection elements formed in a concave curved surface with respect to the surface are alternately arranged in the radial direction, the viewpoint is moved up and down or left and right from the front direction of the lamp The bright part of the first diffuse reflection element formed with the convex curved surface moves in the same direction as the viewpoint movement direction, whereas the bright part of the first diffuse reflection element formed with the concave curved surface has the viewpoint movement direction. Moves in the opposite direction, so that the way of illuminating the group of bright portions generated by the respective fan-shaped reflection areas can be greatly changed as the viewpoint moves, thereby further improving the novelty of the lamp design. . Moreover, the moving speed of the vehicle-like lamp observer around the vehicle can be sensed by greatly changing the way the line-like shining portion group generated by each fan-shaped reflection area shines as the viewpoint moves. This makes it possible to easily recognize the vehicle, thereby further improving the driving safety of the vehicle.

  Similarly, with respect to the plurality of second diffuse reflection elements constituting each rib-like reflection region, the second diffuse reflection element and the second rotation paraboloid formed with a curved surface that is convex with respect to the second rotation paraboloid. If the configuration is such that the second diffuse reflection elements formed as curved surfaces that are concave with respect to the surface are alternately arranged in the radial direction, the ribs are generated by the respective rib-like reflection regions as the viewpoint moves. It is possible to greatly change the way of illuminating the group of bright parts, thereby further improving the novelty of the lamp design. Moreover, the moving speed of the vehicle with respect to the lamp observer around the vehicle can be reduced by greatly changing the way the row-like shining portion group is generated by each rib-like reflection region as the viewpoint moves in this way. It is possible to easily recognize it sensuously, which can further increase the traveling safety of the vehicle.

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

  FIG. 1 is a front view showing a vehicular marker lamp according to an embodiment of the present invention, and FIG. 2 is a side sectional view thereof.

  As shown in these drawings, the vehicle marker lamp 10 according to the present embodiment is a tail lamp arranged at the rear end of the vehicle, and the optical axis Ax extending in the front-rear direction of the lamp is made to coincide with the front-rear direction of the vehicle. It can be attached to the car body in a state.

  The vehicle marker lamp 10 includes a light source bulb 12 disposed on an optical axis Ax, and a reflector 14a that diffuses and reflects light from the light source bulb 12 to the front of the lamp (backward as a vehicle, the same applies hereinafter). 14 and a transparent light-transmitting cover 16 attached to the front end opening 14c of the reflector 14, and has a circular outer shape when viewed from the front of the lamp.

  The light source bulb 12 is an incandescent bulb having a vertically extending filament as the light source 12a. The light source bulb 12 is inserted and fixed in the rear top opening 14b of the reflector 14 so that the light emission center of the light source 12a is positioned on the optical axis Ax. ing.

  The reflecting surface 14a of the reflector 14 is linear in a radial direction with a constant width along a plurality of fan-shaped reflection areas 14aA arranged radially around the optical axis Ax and a boundary line between the plurality of fan-shaped reflection areas 14aA. It comprises a plurality of rib-like reflective regions 14aB extending in a shape.

  Each fan-shaped reflection area 14aA is divided into a plurality of first diffuse reflection elements 14sA in the radial direction. On the other hand, each rib-like reflection region 14aB is divided into a plurality of second diffuse reflection elements 14sB at a pitch shorter than the plurality of first diffuse reflection elements 14sA in the radial direction.

  3 is a detailed view of the main part of FIG. 2, and FIG. 4 is a detailed view of the main part of FIG.

  As shown in these drawings, each first diffuse reflection element 14sA rotates with respect to a first paraboloid Pa having the optical axis Ax as a central axis and the light emission center of the light source 12a as a reference. The paraboloid Pa is formed by a curved surface having a different curvature. Each of the first diffuse reflection elements 14sA diffuses and reflects the light from the light source 12a toward the front of the lamp.

  On the other hand, each second diffuse reflection element 14sB has the optical axis Ax as the central axis, the light emission center of the light source 12a as a focal point, and a focal length fb shorter than the focal length fa of the first paraboloid Pa. With reference to the second paraboloid Pb, the paraboloid Pb is formed with a curved surface having a different curvature. Each of the second diffuse reflection elements 14sB diffuses and reflects the light from the light source 12a toward the front of the lamp.

  The pitch in the radial direction of the plurality of first diffuse reflection elements 14sA is set to gradually increase as the distance from the optical axis Ax increases. On the other hand, the radial pitch of the plurality of second diffuse reflection elements 14sB is set to a substantially constant value.

  The plurality of first diffuse reflection elements 14sA constituting each fan-shaped reflection area 14aA are arranged so as to be shifted by approximately a half pitch in the radial direction between the adjacent fan-shaped reflection areas 14aA.

  The plurality of first diffuse reflection elements 14sA constituting each of the fan-shaped reflection areas 14aA includes a first diffuse reflection element 14sA1 formed as a convex curved surface with respect to the first rotational paraboloid Pa, The first diffuse reflection elements 14sA2 formed in a concave curved surface with respect to the paraboloid Pa are formed so as to be alternately arranged in the radial direction.

  On the other hand, the plurality of second diffuse reflection elements 14sB constituting each rib-like reflection region 14aB are formed in a second rotational reflection direction with the second diffuse reflection element 14sB1 formed as a convex curved surface with respect to the second rotation paraboloid Pb. The second diffuse reflection elements 14sB2 formed in a concave curved surface with respect to the paraboloid Pb are formed so as to be alternately arranged in the radial direction.

  Next, the effect of this embodiment is demonstrated.

  FIG. 5 is a front view showing how the reflecting surface 14a of the reflector 14 looks when the light source bulb 12 is turned on.

  As shown in the drawing, the plurality of fan-shaped reflection regions 14aA appear to shine in rows at predetermined intervals in the radial direction for each of the sector-shaped reflection regions 14aA, and from the plurality of bright portions Ba It can be seen in a state where the line-like bright portion groups are arranged radially. Further, the plurality of rib-like reflection regions 14aB appear to shine in a scattered manner in a row at predetermined intervals in the radial direction for each rib-like reflection region 14aB, and are arranged in rows of these plurality of bright portions Bb. It can be seen in the state where the bright part groups are arranged radially.

  At that time, the plurality of first diffuse reflection elements 14sA constituting each fan-shaped reflection area 14aA gradually increase in the circumferential width outward in the radial direction, whereas each rib-like reflection area 14aB has a constant width. In addition, the plurality of second diffuse reflection elements 14sB constituting each rib-like reflection region 14aB has a shorter pitch than the plurality of first diffuse reflection elements 14sA constituting each fan-shaped reflection region 14aA. Since the arrangement is such that the array of bright portions generated by each of the fan-shaped reflection regions 14aA is arranged such that the bright portions Ba gradually increase outward in the radial direction, The row-like bright portion group generated by the rib-like reflective region 14aB is a group in which small bright portions Bb having substantially the same size are arranged in a chain.

  For this reason, while being able to give a strong sparkle feeling to a lamp observer, it is possible to sharpen the way it shines.

  Further, each rib-like reflection area 14aB is located at a position protruding forward of the lamp relative to each fan-shaped reflection area 14aA. Therefore, when the viewpoint is moved from the front direction of the lamp to either the top, bottom, left, or right, each sector reflection The positional relationship between the row-like shining portion group generated by the region 14aA and the row-like shining portion group generated by each rib-like reflection region 14aB changes, and thereby, it is possible to give the lamp design a stereoscopic effect. .

  As described above, according to the present embodiment, the novelty of the lamp design can be improved, thereby improving the visibility of the following vehicle driver and the like. As a result, the traveling safety of the vehicle can be improved.

  Further, in the vehicle marker lamp 10 according to the present embodiment, each rib-like reflection area 14aB is in a position protruding forward of the lamp with respect to each fan-shaped reflection area 14aA. The fourteen reflecting surfaces 14a can be given a three-dimensional effect, whereby the appearance of the lamp can be enhanced.

  In particular, in the present embodiment, each of the first diffuse reflection elements 14sA has the rotational parallax with respect to the first paraboloid Pa that has the optical axis Ax as the central axis and the light emission center of the light source 12a as a reference. The second diffuse reflection element 14sB has the optical axis Ax as a central axis and the light emission center of the light source 12a as a focal point, and has a first rotational release. Since the second paraboloidal surface Pb having a focal length shorter than the object surface Pa is used as a reference, the rib-shaped reflective region 14aB is formed with a curved surface having a curvature different from that of the paraboloidal surface Pb. It can project reliably from each sector-shaped reflection area 14aA to the front side of the lamp over the entire length, thereby ensuring the stereoscopic effect of the reflecting surface 14a of the reflector 14. Moreover, when viewed from the front of the lamp, each of the first diffuse reflection elements 14sA and each of the second diffuse reflection elements 14sB can be illuminated at the approximate center of the segment to which the first diffuse reflection element 14sA and the second diffuse reflection element 14sB are assigned. It is possible to increase the harmony of the lamp design by providing regularity to each.

  In the present embodiment, the radial pitch of the plurality of first diffuse reflection elements 14sA is set to gradually increase as the distance from the optical axis Ax increases, while the radial direction of the plurality of second diffuse reflection elements 14sB is set. Is set to a substantially constant value, the following effects can be obtained.

  That is, since the pitch in the radial direction of the plurality of first diffuse reflection elements 14sA is set to gradually increase as the distance from the optical axis Ax increases, the row of bright portions generated by each fan-shaped reflection region 14aA The plurality of bright parts Ba to be configured can be made denser as they approach the optical axis Ax. As a result, the bright portion Ba closer to the optical axis Ax can be seen at a farther position based on the principle of the linear perspective method, so that the reflecting surface 14a of the reflector 14 can have a sense of depth. In addition, at that time, since the pitch in the radial direction is set to a substantially constant value for the plurality of second diffuse reflection elements 14sB, a plurality of the plurality of row radiating portion groups generated by the rib-like reflection regions 14aB are formed. The bright portions Bb can be seen at substantially the same distance. Therefore, the depth sensation of the reflecting surface 14a of the reflector 14 can be further enhanced by comparing the row-like glitter portion group composed of the plurality of glitter portions Ba and the row-like glitter portion group composed of the plurality of glitter portions Bb.

  Accordingly, it is possible to give the reflecting surface 14a of the reflector 14 a sense of depth without increasing the depth dimension of the lamp, thereby further enhancing the novelty of the lamp design.

  Further, in the present embodiment, the plurality of first diffuse reflection elements 14sA constituting each fan-shaped reflection area 14aA are arranged so as to be shifted by a substantially half pitch in the radial direction between the adjacent fan-shaped reflection areas 14aA. It is possible to add clarity by changing the way in which the line-like bright portion group generated by each sector-shaped reflection region 14aA is lit between the plurality of sector-shaped reflection regions 14aA.

  Further, in the present embodiment, the plurality of first diffuse reflection elements 14sA constituting each fan-shaped reflection region 14aA and the first diffuse reflection element 14sA1 formed with a curved surface convex with respect to the first paraboloid Pa Since the first diffuse reflection elements 14sA2 formed in a concave curved surface with respect to the first paraboloid Pa are formed so as to be alternately arranged in the radial direction, the viewpoint is moved up and down from the front direction of the lamp or When moved to the left and right, the bright portion Ba of the first diffuse reflection element 14sA formed with a convex curved surface moves in the same direction as the viewpoint movement direction, whereas the first diffuse reflection element formed with a concave curved surface The bright portion Bb moves in the direction opposite to the viewpoint movement direction. Accordingly, it is possible to greatly change the way in which the line-like shining portion groups are generated by the respective fan-shaped reflection regions 14aA with this viewpoint movement, and thereby it is possible to further enhance the novelty of the lamp design.

  Moreover, the moving speed of the vehicle with respect to the lamp observer around the vehicle can be increased by greatly changing the way the line-like shining portion group is generated by each sector-shaped reflection area 14aA as the viewpoint moves. It is possible to easily recognize it sensuously, which can further increase the traveling safety of the vehicle.

  Similarly, with respect to the plurality of second diffuse reflection elements constituting each rib-like reflection region 14aB, the second diffuse reflection element 14sB1 formed in a curved surface convex with respect to the second rotation paraboloid and the second rotation Since the second diffuse reflection elements 14sB2 formed in a concave curved surface with respect to the paraboloid are formed so as to be alternately arranged in the radial direction, they are generated by the respective rib-like reflection regions 14aB as the viewpoint moves. It is possible to greatly change the way in which the line-like brilliant group is illuminated, and thereby further improve the novelty of the lamp design.

  In addition, in the present embodiment, the way the row-like shining portion group generated by each rib-like reflection region 14aB in accordance with the movement of the viewpoint is greatly increased together with the row-like shining portion group generated by each sector-like reflection region 14aA. Since it can be changed, it becomes possible to make it easier for a lamp observer around the vehicle to recognize the moving speed of the vehicle sensuously, thereby further improving the driving safety of the vehicle. .

  In particular, in the present embodiment, each fan-shaped reflection region 14aA has a configuration in which convex curved surfaces and concave curved surfaces are alternately arranged in the radial direction, and has a smooth surface shape. By forming each rib-like reflection area 14aB in a position protruding to the front side of the lamp with respect to each fan-shaped reflection area 14aA, the stereoscopic effect of the reflecting surface 14a of the reflector 14 when not lit can be further enhanced. .

  In addition, in the said embodiment, although it has the structure formed so that each rib-shaped reflective area | region 14aB may extend linearly in the radial direction with a fixed width, it formed so that it might extend in the radial direction with a substantially fixed width. If it is a thing, it is also possible to employ | adopt a structure other than this. For example, as shown in FIG. 6, the structure is formed to extend in a zigzag shape in a radial direction with a constant width, or as shown in FIG. 7, a linear portion is formed in a radial direction by repeating a wide portion and a narrow portion. It is also possible to have a formed configuration or the like, and even in this case, the same effects as those of the above embodiment can be obtained.

  In the above-described embodiment, the vehicle marker lamp 10 has been described as having a circular outer shape when viewed from the front of the lamp. By adopting the same configuration as the above, it is possible to obtain the same operation and effect as the above embodiment.

  Furthermore, in the above-described embodiment, the vehicular marker lamp 10 has been described as a tail lamp. However, even when the vehicular marker lamp 10 is a vehicular marker lamp, the above-described embodiment can be implemented by adopting the same configuration as the above-described embodiment. The same effect as the form can be obtained.

The front view which shows the marker lamp for vehicles which concerns on one Embodiment of this invention Side cross-sectional view showing the above vehicle sign lamp Detailed view of the main part of FIG. Detailed view of the main part of FIG. The front view which shows how the reflective surface of a reflector looks when the said vehicle marker light is turned on The same figure as FIG. 1 which shows the 1st modification of the said embodiment. The same figure as FIG. 1 which shows the 2nd modification of the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle marker lamp 12 Light source bulb 12a Light source 14 Reflector 14a Reflective surface 14aA Fan-shaped reflective area 14aB Rib-shaped reflective area 14b Rear top opening 14c Front end opening 14sA, 14sA1, 14sA2 First diffuse reflection element 14sB, 14sB1, 14sB2 Diffuse reflection element 16 Translucent cover Ax Optical axis Ba, Bb Bright part fa, fb Focal length Pa First rotation paraboloid Pb Second rotation paraboloid

Claims (6)

A light source disposed on an optical axis extending in the front-rear direction of the lamp, a reflector having a reflecting surface that diffusely reflects light from the light source toward the front of the lamp, and a translucent cover provided on the front side of the lamp of the reflector; In a vehicular marker lamp comprising:
A plurality of fan-shaped reflection areas arranged radially with the optical axis as the center, and a boundary line between the fan-shaped reflection areas at a position protruding forward of the lamp from the plurality of fan-shaped reflection areas A plurality of rib-like reflective regions extending in a radial direction with a substantially constant width along the
Each of the fan-shaped reflection areas is divided into a plurality of first diffuse reflection elements in the radial direction, and each of the rib-like reflection areas has a plurality of first diffuse reflection elements at a pitch shorter than that of the plurality of first diffusion reflection elements in the radial direction. A vehicular marker lamp, which is divided into two diffuse reflection elements. Each of the first diffuse reflection elements has a curved surface having a curvature different from that of the rotating paraboloid, with the first rotating paraboloid having the optical axis as a central axis and focusing on a point near the light source. Formed with
Each of the second diffuse reflection elements has a second rotating paraboloid having the optical axis as a central axis, a point near the light source as a focal point, and a focal length shorter than the first rotating paraboloid. The vehicular marker lamp according to claim 1, wherein the vehicular marker lamp is formed with a curved surface having a curvature different from that of the paraboloid of revolution. The radial pitch of the plurality of first diffuse reflection elements is set to gradually increase as the distance from the optical axis increases.
3. The vehicular marker lamp according to claim 1, wherein a pitch in a radial direction of the plurality of second diffuse reflection elements is set to a substantially constant value.   The plurality of first diffuse reflection elements constituting each of the fan-shaped reflection areas are arranged so as to be shifted by a substantially half pitch in the radial direction between the adjacent fan-shaped reflection areas. Any of the vehicle marker lights described above.   A plurality of first diffuse reflection elements constituting each of the fan-shaped reflection areas are formed on a first diffuse reflection element formed with a convex curved surface with respect to the first rotation paraboloid and the first rotation paraboloid. 5. The vehicular marker lamp according to claim 1, wherein the vehicular marker lamp is formed so that the first diffuse reflection elements formed in a concave curved surface are alternately arranged in a radial direction.   A plurality of second diffuse reflection elements constituting each of the rib-like reflection regions are a second diffuse reflection element formed by a curved surface that is convex with respect to the second rotation paraboloid, and the second rotation paraboloid. The vehicle sign lamp according to any one of claims 1 to 5, wherein the second diffuse reflection elements formed in a concave curved surface are alternately arranged in the radial direction. .

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