JP3868625B2 - Vehicle light - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicular marker lamp including a plurality of light emitting diodes, and more particularly to a structure for improving the appearance.
[0002]
[Prior art]
In general, a vehicle marker lamp includes a light source, a reflector, and a lens. However, in the conventional vehicle marker lamp, the light source is composed of an incandescent bulb. The appearance of is relatively mediocre.
[0003]
On the other hand, as shown in FIG. 16 or 17, a vehicle marker lamp using a plurality of light-emitting diodes 2 as the light source has been proposed. Can be different from the conventional one.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned vehicular marker lamp, when the lamp is turned on, when viewed from the outside, only a plurality of small lamps appear to shine, and an extraordinary effect more than the effect of having a plurality of light emitting diodes is obtained. There is a problem that can not be.
[0005]
That is, the vehicular marker lamp shown in FIG. 16 merely diffuses the direct light from each light-emitting diode 2 by the lens 4, so that the lamp is scattered and planar for each light-emitting diode 2. On the other hand, in the vehicular marker lamp shown in FIG. 17, a small reflection surface 6 is provided for each light emitting diode 2, and these small reflection surfaces 6 are arranged in a plane in isolation from each other. Therefore, as the lamp, each light emitting diode 2 and the small reflection surface 6 are merely an assembly of small lamps that shine in a scattered manner.
[0006]
The present invention has been made in view of such circumstances, and in a vehicle marker lamp having a plurality of light emitting diodes, a vehicle marker lamp that has a novel depth of lighting when a lamp is lit is provided. It is intended to provide.
[0007]
[Means for Solving the Problems]
In the present invention, a plurality of light-emitting diodes and small reflective surfaces are not simply arranged in a planar manner as in the prior art, but a plurality of small reflective surfaces to be provided with light-emitting diodes are radially formed as reflective surface components of one reflector. By doing so, the above-mentioned purpose is achieved.
[0008]
That is, the vehicle marker lamp according to the present invention is as described in claim 1.
A vehicle lamp comprising a light source, a reflector that reflects light from the light source forward, and a lens provided in front of the reflector,
The light source comprises a plurality of light emitting diodes arranged at a predetermined pitch in the circumferential direction with respect to the optical axis of the reflector,
The reflecting surface of the reflector includes a plurality of small reflecting surfaces formed radially at a predetermined pitch in the circumferential direction with respect to the optical axis so as to reflect light from each light emitting diode forward. To do.
[0009]
Each of the above “light emitting diodes” is not particularly limited with respect to its specific configuration such as its luminance and emission color.
[0010]
The “reflective surface” may be one in which the plurality of small reflective surfaces are formed in close contact with each other, or may be formed by separating the plurality of small reflective surfaces from each other. .
[0011]
Each of the “small reflective surfaces” is not particularly limited as long as it is formed radially. Further, the outer shape and the surface shape may be the same between the small reflective surfaces, but may be different.
[0012]
[Effects of the invention]
As shown in the above configuration, the vehicle marker lamp according to the present invention uses a plurality of light emitting diodes as its light source, and these light emitting diodes are arranged at a predetermined pitch in the circumferential direction with respect to the optical axis of the reflector. The reflecting surface of the reflector includes a plurality of small reflecting surfaces formed radially at a predetermined pitch in the circumferential direction with respect to the optical axis, and the light from each of the light emitting diodes is forwarded by the small reflecting surfaces. Since it is configured to reflect, when it is lit from the outside when the lamp is lit, it can be seen as follows.
[0013]
That is, when observed from the front in the optical axis direction, each small reflection surface formed radially reflects light from the light emitting diode in the vicinity of the small reflection surface so that the entire surface or a part of the small reflection surface appears to shine. In addition, when the viewpoint is moved vertically and horizontally from the front in the optical axis direction and observed from diagonally forward, each small reflection surface is formed in a radial shape. In addition to reflecting and shining, the light from other light emitting diodes also reflects and shines, so that the entire reflecting surface shines with a sense of depth. Moreover, it looks different from one another as the viewpoint moves.
[0014]
Therefore, according to the present invention, in a vehicle marker lamp including a plurality of light emitting diodes, when the lamp is turned on, the lamp can be caused to have a novel way of shining with a sense of depth.
[0015]
In the above-described configuration, as described in claim 2, the surface shape of each of the small reflection surfaces is a light distribution pattern including irradiation light traveling forward in the optical axis direction by reflected light of light from a light emitting diode in the vicinity thereof. If the curved surface shape to be formed is set, it is possible to make all the small reflective surfaces look shining when observed from the front in the optical axis direction when the lamp is turned on.
[0016]
As described above, the “reflecting surface” may be formed by separating a plurality of small reflecting surfaces from each other. In this case, as described in claim 3, If each of the second small reflection surfaces is formed between the small reflection surfaces, the reflected light from each of the second small reflection surfaces is superimposed on the reflected light from each of the small reflection surfaces. The feeling can be further enhanced.
[0017]
In this case, the surface shape or the like of each of the second small reflection surfaces is not particularly limited. However, as described in claim 4, each of the second small reflection surfaces is located behind the respective small reflection surfaces. If it is formed so as to be offset, the reflecting surface can be periodically sharpened in the circumferential direction to shine, thereby providing a further sense of depth to the lamp.
[0018]
In this case, if the light emitting diodes are arranged in the vicinity of each of the second small reflection surfaces, the light from the light emitting diodes in the vicinity of each of the small reflection surfaces and the second small reflection surfaces is provided. The light reflected by the light and the light reflected by light from other light emitting diodes can make it appear more shining. Furthermore, in this case, when the lamp is lit, all the light emitting diodes may be lit at the same time. However, as described in claim 5, the lamp lighting mode is set only for the light emitting diodes in the vicinity of the small reflective surfaces. Can be switched between the mode in which the LED is turned on and the mode in which the light emitting diodes in the vicinity of the second small reflecting surfaces are also turned on at the same time. Can be greatly changed, which makes the lamp more innovative.
[0019]
By the way, although it is good also as a structure provided with the single reflector as a lamp structure of the said marker lamp for vehicles, as described in Claim 6, the lamp structure with which the said reflector was arrange | positioned by two or more scattered points, In addition, if an extension panel is provided on the front side of these reflectors to cover the peripheral edge of the opening of each reflector, the following operational effects can be obtained. In other words, when the lamp is lit, the light emitting part that shines with a sense of depth is arranged in scattered points for each reflector, so that the way the lamp shines can be made even more innovative, and when the lamp is not lit, When this is observed from the outside, it can be made a novel appearance by the contrast between the planar extension panel and the reflector having a sense of depth.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0021]
FIG. 1 is a front view showing a vehicular marker lamp according to this embodiment, and FIG. 2 is a sectional view taken along line II-II.
[0022]
As shown in these drawings, the vehicle marker lamp 10 according to the present embodiment is a tail lamp, and a pair of left and right reflector units 16 are provided in a lamp chamber composed of a lens 12 and a lamp body 14. An extension panel 18 that covers the peripheral edge of the opening is provided on the front side (the front side as a marker lamp and the rear side as a vehicle; the same applies hereinafter).
[0023]
Each of the reflector units 16 has the same configuration, and includes a light source including eight light emitting diodes 20 and a reflector 22 that reflects light from the light emitting diodes 20 forward. The lens 12 is a through lens, and the light distribution control function as a lamp is integrated in each reflector unit 16.
[0024]
FIG. 3 is a front view showing the reflector unit 16 as a single product, and FIG. 4 is a perspective view thereof.
[0025]
As shown in these drawings, the eight light emitting diodes 20 are disposed in a double manner at a 90 ° pitch in the circumferential direction with respect to the optical axis Ax of the reflector 22. The four light emitting diodes 20A positioned on the inner peripheral side are provided so as to be positioned on the upper, lower, left, and right sides of the optical axis Ax. The four light emitting diodes 20B positioned on the outer peripheral side are connected to the light emitting diodes 20A. The half pitch angle is provided at a shifted position.
[0026]
The reflector 22 has an opening 22b formed in a substantially circular shape, and the reflecting surface 22a is radially arranged at 90 ° pitch in the circumferential direction with respect to the optical axis Ax so as to be positioned on the top, bottom, left and right of the optical axis Ax. The four small reflective surfaces A1, A2, A3, and A4 formed, and four second small reflective surfaces B1, B2, B3, and B4 formed between these small reflective surfaces, Light from the light emitting diode 20A or 20B is diffusely reflected forward.
[0027]
The four small reflective surfaces A1, A2, A3, and A4 are adjacent to each other in the region near the optical axis Ax, but are separated from each other in the other regions, and are generally cross-shaped when viewed from the front of the lamp. A reflective surface is formed.
[0028]
FIG. 5 is a diagram showing a screen light distribution pattern formed by the reflector unit 14.
[0029]
In the figure, the light distribution patterns Pa1, Pa2, Pa3, Pa4 are due to the reflected light from the small reflection surfaces A1, A2, A3, A4, respectively, and the light distribution patterns Pb1, Pb2, Pb3, Pb4 are respectively the first. The light distribution pattern Pd is formed as a combined light distribution pattern by direct light from the eight light emitting diodes 20, which is based on the reflected light from the two small reflective surfaces B 1, B 2, B 3, B 4. In addition, the horizontally long rectangular frame indicated by a broken line in the figure is a frame indicating a region of 10 ° in the vertical direction and 20 ° in the horizontal direction with respect to the front (HV) in the optical axis Ax direction (a region preferably irradiated as a tail lamp). is there.
[0030]
As shown in the figure, the light distribution pattern Pd is a substantially circular light distribution pattern centered on the front in the optical axis Ax direction, and each light distribution pattern Pa1, Pa2, Pa3, Pa4 and each light distribution pattern Pb1, Pb2 , Pb3, Pb4 are substantially elliptical light distribution patterns including irradiation light traveling forward in the optical axis Ax direction. The light distribution pattern of the entire reflection surface 22a is a light distribution pattern in which the front in the optical axis Ax direction is brightest and the brightness gradually decreases toward the peripheral region.
[0031]
In order to form such a light distribution pattern, the surface shapes of the small reflective surfaces A1, A2, A3, A4 and the second small reflective surfaces B1, B2, B3, B4 are the light emitting diodes 20A, 20B in the vicinity thereof. Is set to a curved shape obtained by appropriately deforming the paraboloid of revolution having the axis passing through the center axis. At that time, each of the second small reflection surfaces B1, B2, B3, B4 is formed with reference to a rotating paraboloid having a focal length longer than each of the small reflection surfaces A1, A2, A3, A4, For this reason, each small reflective surface A1, A2, A3, and A4 is offset backward.
[0032]
As shown in FIGS. 1 and 2, the extension panel 18 is formed as an annular flange portion 18a in which a portion of each reflector unit 16 located in front of the opening 22b of the reflector 22 protrudes forward in an annular shape. The other portions are formed in a substantially planar shape.
[0033]
Next, the operation of this embodiment will be described.
[0034]
When the vehicle marker lamp 10 is observed from the front in the optical axis Ax direction, the pair of left and right reflector units 16 and the extension panel 18 can be seen through the transparent lens 12, but when the lamp is lit, the reflectors of the reflector units 16 The light from the light emitting diode 20 in the vicinity of the four small reflection surfaces A1, A2, A3, A4 and the four second small reflection surfaces B1, B2, B3, B4 constituting the reflection surface 22a of 22 is reflected. As a result, a part thereof (region to be reflected forward in the direction of the optical axis Ax) appears to shine. Further, when the viewpoint is moved vertically and horizontally from the front in the optical axis Ax direction and observed obliquely from the front, each small reflection surface A1, A2, A3, A4 and each second small reflection surface B1, B2, B3, B4 are radial. Therefore, the small reflective surface and the second small reflective surface reflect not only the light from the light emitting diode 20 in the vicinity thereof but also the light from other light emitting diodes 20 as well. As a result, the entire reflection surface 22a appears to shine with a sense of depth. Moreover, it looks different from one another as the viewpoint moves.
[0035]
Therefore, according to the present embodiment, in a vehicular marker lamp including a plurality of light emitting diodes, when the lamp is turned on, the lamp can be caused to have a novel way of lighting with a sense of depth.
[0036]
In addition, in the present embodiment, each of the second small reflection surfaces B1, B2, B3, B4 is formed with a surface shape different from that of each of the small reflection surfaces A1, A2, A3, A4 and offset backward. The reflecting surface 22a can be periodically sharpened in the circumferential direction to make it shine, thereby providing a further depth feeling to the lamp.
[0037]
In the present embodiment, a pair of left and right reflector units 16 are arranged at a predetermined interval, and an extension panel 18 that covers the opening peripheral edge of each reflector unit 16 is provided on the front side of the reflector units 16. Therefore, when the lamp is lit, light emitting parts that shine with a sense of depth will be scattered every reflector unit 16, so that the lighting of the lamp can be made even more innovative. In addition, when the lamp is not lit, when viewed from the outside, a novel appearance can be obtained by the contrast between the planar extension panel 18 and the reflector unit 16 having a sense of depth.
[0038]
Next, a first modification of the above embodiment will be described.
[0039]
In the above embodiment, each of the small reflection surfaces A1, A2, A3, A4 and each of the second small reflection surfaces B1, B2, B3, B4 is configured to diffusely reflect the light from each of the light emitting diodes 20A, 20B. However, in this modification, as shown in FIG. 6, each of the small reflection surfaces A1, A2, A3, A4 reflects the light from each light emitting diode 20A as parallel light forward in the optical axis Ax direction. It is configured as follows. Specifically, the surface shape of each of the small reflection surfaces A1, A2, A3, and A4 is set to a paraboloid shape having a central axis that is parallel to the optical axis Ax passing through the light emitting diode 20A in the vicinity thereof. ing.
[0040]
On the other hand, each of the second small reflection surfaces B1, B2, B3, and B4 has a surface shape substantially the same as that of the above embodiment, but as shown in FIG. 7, each of the small reflection surfaces A1, A2, The reflection / diffusion angle is set and adjusted so as to compensate for the fact that diffuse reflection light from A3 and A4 cannot be obtained.
[0041]
When the reflector unit 16 is observed from the front in the optical axis Ax direction when the lamp is lit, the reflection surface 22a of the reflector 22 appears to have four small reflection surfaces A1, A2, A3, and A4 shining over the entire area as shown in FIG. Only the peripheral region of the light emitting diode 20B appears to shine on the four second small reflection surfaces B1, B2, B3, and B4. Then, when the viewpoint is moved up, down, left and right from the front in the optical axis Ax direction and observed from obliquely forward, each of the small reflection surfaces A1, A2, A3, A4 does not appear to shine over the entire area, but is the same as in the above embodiment. Each of the small reflective surfaces A1, A2, A3, A4 and each of the second small reflective surfaces B1, B2, B3, B4 is reflected by light from the light emitting diode 20 and other light emitting diodes 20 in the vicinity thereof, and appears to shine. As a result, the entire reflection surface 22a appears to shine with a sense of depth. Moreover, it looks different from one another as the viewpoint moves.
[0042]
Therefore, also in this modified example, when the lamp is turned on, the lamp can be caused to have a novel way of shining with a sense of depth. In particular, in this modification, the impression when observed from the front in the optical axis Ax direction can be made intense.
[0043]
Next, a second modification of the above embodiment will be described.
[0044]
In the above-described embodiment, the case where the vehicle marker lamp is used as a tail lamp has been described. However, in the present modification, this is used as a tail & stop lamp, and the number of lighting of the eight light emitting diodes 20 is switched. The tail lamp lighting mode and the stop lamp lighting mode are switched.
[0045]
That is, in the tail lamp lighting mode, as shown in FIG. 8, when the lamp is lit, only the four light emitting diodes 20A on the inner peripheral side among the eight light emitting diodes 20 are lit to perform the light distribution function of the tail lamp. It is like that. In order to realize this, each small reflection surface A1, A2, A3, A4 diffuses and reflects light from the light emitting diode 20 in the vicinity thereof, and as shown in FIG. Patterns Pa1, Pa2, Pa3, and Pa4 are formed.
[0046]
On the other hand, in the stop lamp lighting mode, as shown in FIG. 10, when the lamp is lit, all eight light emitting diodes 20 are lit to perform the light distribution function of the stop lamp. The light distribution patterns Pb1, Pb2, Pb3, and Pb4 formed by the second small reflective surfaces B1, B2, B3, and B4 that are additionally lit are substantially the same as those in the above embodiment.
[0047]
When the reflector unit 16 is observed from the front in the direction of the optical axis Ax while being lit in the tail lamp lighting mode, the light emitting diodes in the vicinity thereof are formed by the four small reflecting surfaces A1, A2, A3, and A4 constituting the reflecting surface 22a of the reflector 22. The light from 20 </ b> A is reflected and a part of it (region to be reflected forward in the direction of the optical axis Ax) appears to shine. In addition, when the viewpoint is moved up and down or left and right from the front in the optical axis Ax direction and observed from diagonally forward, the small reflective surfaces A1, A2, A3, and A4 are formed in a radial shape. Not only the light from the light emitting diode 20A in the vicinity thereof reflects and shines but also the light from the other light emitting diodes 20A also reflects and shines, whereby the reflecting surface 22a has a cross shape and has a sense of depth. It looks shining. Moreover, it looks different from one another as the viewpoint moves.
[0048]
On the other hand, the way of lighting in the state of lighting in the stop lamp lighting mode is substantially the same as in the above embodiment. However, the brightness of the lamp is different due to the difference in function between the stop lamp and the tail lamp.
[0049]
As described above, according to the present modification, the tail and stop lamp can make the lamp have a novel way of shining with a sense of depth even when the tail lamp and the stop lamp are turned on.
[0050]
Next, a third modification of the above embodiment will be described.
[0051]
The vehicle marker lamp according to this modification is also a tail lamp as in the above embodiment, but the configuration of each reflector unit 16 is different.
[0052]
That is, in the present modification, as shown in FIG. 12, four light emitting diodes 20 are provided so as to be positioned on the top, bottom, left, and right of the optical axis Ax at a 90 ° pitch in the circumferential direction with respect to the optical axis Ax of the reflector 22. It has been. The reflecting surface 22a of the reflector 22 is composed of four small reflecting surfaces A1, A2, A3, and A4 that are divided into four vertically and horizontally so as to reflect light from each light emitting diode 20 forward. Each of these small reflective surfaces A1, A2, A3, and A4 diffuses and reflects light from the light emitting diode 20 in the vicinity thereof to form light distribution patterns Pa1, Pa2, Pa3, and Pa4 having shapes as shown in FIG. It has become.
[0053]
When the reflector unit 16 is observed from the front in the optical axis Ax direction when the lamp is turned on, the light from the light emitting diode 20 in the vicinity thereof is reflected by the four small reflecting surfaces A1, A2, A3, and A4 that constitute the reflecting surface 22a of the reflector 22. A part of the light is reflected and reflected in the front of the optical axis Ax direction. Further, when the viewpoint is moved up, down, left and right from the front in the optical axis Ax direction and observed from diagonally forward, the small reflective surfaces A1, A2, A3, A4 are formed in a radial shape. Not only the light from the nearby light emitting diodes 20 is reflected and shines, but also the light from other light emitting diodes 20 is reflected and shines, whereby the reflection surface 22a appears to shine with a sense of depth. . Moreover, it looks different from one another as the viewpoint moves.
[0054]
As described above, also in this modification, when the lamp is turned on, the lamp can be given a novel way of shining with a sense of depth.
[0055]
Next, the 4th modification of the said embodiment is demonstrated.
[0056]
The vehicle marker lamp according to this modification is also a tail lamp as in the above embodiment, but the configuration of each reflector unit 16 is different.
[0057]
That is, in the present modification, as shown in FIG. 14, six light emitting diodes 20 are provided at a 60 ° pitch in the circumferential direction with respect to the optical axis Ax of the reflector 22. The reflecting surface 22a of the reflector 22 includes small reflecting surfaces A1, A2, A3, A4, A5, and A6 that are divided into six sectors so as to reflect the light from each light emitting diode 20 forward. Each of these small reflection surfaces A1, A2, A3, A4, A5, and A6 diffuses and reflects light from the light emitting diode 20 in the vicinity thereof, and the light distribution patterns Pa1, Pa2, Pa3, and Pa4 having shapes as shown in FIG. , Pa5 and Pa6 are formed.
[0058]
When the reflector unit 16 is observed from the front in the optical axis Ax direction when the lamp is turned on, the light emitting diodes 20 in the vicinity thereof are formed by the six small reflecting surfaces A1, A2, A3, A4, A5, and A6 that constitute the reflecting surface 22a of the reflector 22. The light from the light is reflected and a part of the light (a region to be reflected forward in the direction of the optical axis Ax) appears to shine. In addition, when the viewpoint is moved vertically and horizontally from the front in the optical axis Ax direction and observed obliquely from the front, each small reflection surface A1, A2, A3, A4, A5, A6 is formed in a radial shape. The reflection surface not only reflects the light from the light emitting diode 20 in the vicinity thereof but also shines, but also reflects light from other light emitting diodes 20 so that the reflection surface 22a has a sense of depth and glitters. It looks shining. Moreover, it looks different from one another as the viewpoint moves.
[0059]
As described above, also in this modification, when the lamp is turned on, the lamp can be given a novel way of shining with a sense of depth.
[Brief description of the drawings]
FIG. 1 is a front view showing a vehicular marker lamp according to an embodiment of the present invention. FIG. 2 is a sectional view taken along line II-II in FIG. 1. FIG. 3 is a front view showing a reflector unit of the vehicular marker lamp as a single item. FIG. 4 is a perspective view showing the reflector unit as a single product. FIG. 5 is a diagram showing a screen light distribution pattern formed by the reflector unit. FIG. 6 shows a reflector unit according to a first modification of the embodiment as a single product. FIG. 7 is a diagram showing a screen light distribution pattern formed by the reflector unit of the first modification. FIG. 8 is a single unit of the reflector unit (tail lamp lighting mode) according to the second modification of the embodiment. FIG. 9 is a diagram showing a screen light distribution pattern in the tail lamp lighting mode. FIG. 10 is a reflector unit (stop lamp point) according to the second modified example. FIG. 11 is a front view showing a screen light distribution pattern in the stop lamp lighting mode. FIG. 12 is a front view showing a reflector unit according to a third modification of the embodiment. FIG. 14 is a diagram showing a screen light distribution pattern formed by the reflector unit of the third modified example. FIG. 14 is a front view showing a reflector unit according to the fourth modified example of the embodiment as a single item. The figure which shows the screen light distribution pattern formed by the reflector unit of a modification. [FIG. 16] The principal part side sectional view which shows a prior art example. [FIG. 17] The principal part side sectional view which shows another conventional example.
DESCRIPTION OF SYMBOLS 10 Mark light 12 for vehicles 12 Lens 14 Lamp body 16 Reflector unit 18 Extension panel 18a Ring flange part 20, 20A, 20B Light emitting diode (light source)
22 Reflector 22a Reflective surface 22b Aperture Ax Optical axis A1, A2, A3, A4, A5, A6 Small reflective surface B1, B2, B3, B4 Second small reflective surface

Claims (6)

A vehicle marker lamp comprising a light source, a reflector that reflects light from the light source forward, and a lens provided in front of the reflector,
The light source comprises a plurality of light emitting diodes arranged at a predetermined pitch in the circumferential direction with respect to the optical axis of the reflector,
The reflecting surface of the reflector includes a plurality of small reflecting surfaces formed radially at a predetermined pitch in the circumferential direction with respect to the optical axis so as to reflect light from the light emitting diodes forward. Vehicle sign light. The surface shape of each of the small reflection surfaces is set to a curved surface that forms a light distribution pattern including irradiation light traveling forward in the optical axis direction by reflected light from light emitting diodes in the vicinity of the small reflection surfaces. The vehicle sign lamp according to claim 1. Each of the small reflective surfaces is formed apart from each other,
The vehicle sign lamp according to claim 1 or 2, wherein a second small reflection surface is formed between each of these small reflection surfaces. 4. The vehicle marker lamp according to claim 3, wherein each of the second small reflection surfaces is formed to be offset backward with respect to each of the small reflection surfaces. Light emitting diodes are respectively disposed in the vicinity of the second small reflecting surfaces,
The lamp lighting mode is configured to be switchable between a mode in which only the light emitting diodes in the vicinity of the respective small reflective surfaces are lit and a mode in which the light emitting diodes in the vicinity of the respective second small reflective surfaces are simultaneously lit. The vehicle sign lamp according to claim 3 or 4, characterized by the above-mentioned. A plurality of the reflectors are arranged at scattered points,
The vehicle sign lamp according to any one of claims 1 to 5, wherein an extension panel is provided on the front side of the reflectors to cover the peripheral edge of the opening of each reflector.

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