JP3193891B2 - Vehicle sign lights - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular marker lamp in which a plurality of reflecting surface elements are formed on a reflecting surface of a reflector.

[0002]

2. Description of the Related Art In recent years, so-called step reflectors, in which a plurality of reflecting surface elements are formed on a reflecting surface, are often used in vehicle marker lights.

[0003] Generally, this step reflector is shown in FIG.
As shown in FIG. 8, the reflecting surface 6a is configured by allocating a reflecting surface element 6s formed of a cylindrical curved surface extending in the vertical direction to each of a plurality of strip-shaped segments SG 'divided into vertical stripes at substantially right and left intervals. The light from the light source bulb 2 is diffused and reflected in the left-right direction by the respective reflecting surface elements 6s.

In the marker lamp provided with such a step reflector 6, of the light incident on each reflecting surface element 6s, only the light incident on one point in the left-right direction of the reflecting surface element 6s is directed in the front direction of the lamp. Will be reflected. Therefore, when the lit lamp is observed from the front, as shown in FIG. 19, each of the reflecting surface elements 6s includes a bright portion B extending linearly from the upper end to the lower end of the reflecting surface 6a.
It will appear to shine as r '.

[0005]

However, in the marker lamp provided with the step reflector 6 such that the vertical stripe-like brilliant portions Br 'can be seen at equal intervals on the left and right, the lighting fixture in the lighting state is observed from the front. A novel impression cannot be given to the observer, and even in the non-lighting state, a boundary line between the respective reflecting surface elements 6s does not appear so clearly. Can not be done, in any case the appearance of the lamp is not very good,
There is a problem.

The present invention has been made in view of such circumstances, and improves the appearance of a marker lamp provided with a step reflector at the time of lighting (preferably also at the time of non-lighting). It is an object of the present invention to provide a vehicular marker lamp that can be used.

[0007]

SUMMARY OF THE INVENTION The present invention achieves the above object by modifying the cross-sectional shape of each reflecting surface element and the width of a strip-shaped segment to which each reflecting surface element is allocated. It is.

That is, according to the present invention, as described in claim 1, a light source bulb, a reflector having a reflecting surface for reflecting light from the light source bulb forward, and a lens provided in front of the reflector are provided. , The reflecting surface is configured by allocating a reflecting surface element to each of a plurality of strip-shaped segments divided into stripes, and the width of each of the strip-shaped segments in a lamp front view. Is set so as to gradually change in accordance with the distance from the optical axis of the reflector to the strip-shaped segment, and a step is formed at a side end of each of the reflection surface elements, and each of the reflection surfaces An element having a cylindrical axis set with each of a plurality of paraboloids of revolution having different focal lengths having the optical axis as a common axis and having a fixed point on the optical axis as a common focal point; It is constituted by a curved surface, and a focal length of each of the paraboloids of revolution is set so as to gradually change according to a distance from the optical axis to each of the reflective surface elements. It is.

The direction of the stripes generated by the plurality of strip-shaped segments is not particularly limited, and any of vertical stripes, horizontal stripes, and oblique stripes can be adopted.

[0010]

The "step" is formed at a side end of each of the reflecting surface elements (that is, an end in a direction orthogonal to a direction in which each of the strip-shaped segments extends). It may be formed only on one side end, or may be formed on both side ends. In addition, the “step portion”
It may be a step formed so that the side away from the optical axis is retracted, or may be a step opposite to this.

[0012] The expression "according to the distance from the optical axis of the reflector to the strip-shaped segment" means "to make the distance have some relevance", and the concept "to be directly proportional to the distance". This is a broader concept. Specifically, the width of the strip-shaped segment may be monotonically increased toward both ends of the reflection surface, may be monotonously decreased, or may be periodically increased and decreased. Good.

[0013]

[0014]

[0015]

[0016]

[0017]

As described above, in the present invention, the reflecting surface of the reflector is constituted by allocating a reflecting surface element to each of a plurality of strip-like segments divided into stripes. The width of each of the band-shaped segments in a lamp front view is set so as to gradually change according to the distance from the optical axis of the reflector to the band-shaped segment, and at the side end of each of the reflection surface elements. Since the step portion is formed, the following operation and effect can be obtained.

That is, the width of each of the strip-shaped segments when viewed from the front of the lamp is set so as to gradually change according to the distance from the optical axis of the reflector to the strip-shaped segment. The width of each of the reflective surface elements appears to be gradually changed by light, while at the time of lighting, the interval between the bands of light from the light source bulb reflected by each of the reflective surface elements appears to be gradually changed. . Thus, a sense of perspective is created, and a person who observes the reflection surface through the lens can give an impression with a sense of depth.

Further, since a step portion is formed at a side end of each of the reflection surface elements, when the light is not lit, each of the step portions is different from a general portion of each of the reflection surface elements due to external light. In the lighting, on the other hand, at the time of lighting, a plurality of band-shaped shadows for the light from the light source bulb are formed on the reflection surface by the respective step portions, or the respective step portions are formed by the light from the light source bulb. Each of the reflective surface elements emits light differently from the general part, thereby making the boundaries between the reflective surface elements clear. Therefore, a sharp impression can be given to a person who observes the reflection surface through the lens.

As described above, according to the present invention, in a sign lamp provided with a step reflector, a person who observes a reflecting surface through a lens can feel a sense of depth regardless of whether the lamp is lit or not. And a sharp impression can be given, whereby the appearance of the lamp can be improved. Moreover, in the present invention, each of the reflecting surface elements uses the optical axis as a common axis and a fixed point on the optical axis as a common focal point. It is composed of a set cylindrical curved surface, and the focal length of each of the paraboloids of revolution is set so as to gradually change according to the distance from the optical axis to each of the reflective surface elements. A reflector shape corresponding to the installation space can be obtained. That is, for example, if the plurality of paraboloids of revolution are set to a paraboloid of revolution having a longer focal length as being farther from the optical axis,
The thickness of the reflector can be reduced, and conversely,
If the plurality of paraboloids of revolution are set to a paraboloid of revolution having a shorter focal length as being farther from the optical axis, a reflector having a greater depth can be obtained.

In the above structure, the width of each of the band-shaped segments in a front view of the lamp is set so as to be wider as the band-shaped segment is located farther from the optical axis. The vicinity can be seen deep, and the sense of depth of the lamp can be enhanced. In that case, as described in the claim, if the height of the step portion in the optical axis direction is set to be higher as the step portion is located farther from the optical axis, the reflection surface of the reflection surface Since sharpness at both ends is enhanced, the sense of depth can be further enhanced.

On the other hand, in the above configuration, if the width of each of the band-shaped segments as viewed from the front of the lamp is set to be narrower as the band-shaped segment is located farther from the optical axis, The vicinity of both ends of the reflection surface can be seen deeply with a glittering feeling, thereby giving the lamp a unique sense of depth. In particular, since the vicinity of both ends of the reflecting surface is often close to the lens, it is effective to give the portion a sense of depth. Further, in that case, as described in the claim, the height of each step portion in the optical axis direction,
If the step is set to be lower at a position farther from the optical axis, light loss can be reduced.

That is, when each of the step portions is a step portion formed such that the side away from the optical axis retreats, a plurality of band-shaped shadows due to these step portions are formed on the reflection surface during lighting. However, these shadow portions are invalid portions in light distribution. Assuming that the height of each of the steps is constant, the width of the band-shaped shadow becomes wider as the steps are farther from the optical axis. In this regard, as described in claim 3, the height of each stepped portion in the optical axis direction is:
If the height is set to be lower at the step portion located farther from the optical axis, the width of the band-shaped shadow formed near both ends of the reflection surface can be narrowed, and the loss of light can be reduced.

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

In the present invention, the "lens"
May be a transparent lens or a lens having a lens step formed thereon, but as described in claim 4, a plurality of strip-shaped members extending in a direction orthogonal to the direction in which the respective band-shaped segments extend. If the lens step is formed, it is easy to obtain the light distribution performance as a lamp,
In addition, the appearance of the lamp can be improved.

In this case, the cross-sectional shape of the “band-shaped lens step” is not particularly limited.
Also, the pitch can be arbitrarily set, such as the same pitch, a gradually changing pitch, a random pitch, and the like.

[0032]

Embodiments of the present invention will be described below with reference to the drawings.

First, a first embodiment of the present invention will be described.

FIG. 1 is a front view showing a vehicle marker light according to the present embodiment, and FIGS. 2 and 3 are sectional views taken along lines II-II and III-III.

As shown in these drawings, a marker lamp (lamp) 10 according to the present embodiment is a tail and stop lamp provided at a rear right end portion of a vehicle body and has a filament 12a extending vertically. A light source bulb 12,
A reflecting surface that supports the light source bulb 12 via a socket 14 and diffuses and reflects light from the light source bulb 12 forward (forward as a lamp and rearward as a vehicle body, and so on) in the left-right direction. A reflector 16 having a reflector 16a and a lens 18 disposed in front of the reflector 16 and fixed to the reflector 16 have a rectangular outer shape that is long on the left and right.

The light source bulb 12 has its optical axis Ax 'inclined slightly outward in the vehicle width direction with respect to the optical axis Ax of the reflector 16, and its filament 12a is positioned on the optical axis Ax. , And is inserted into the reflector 16.

The lens 18 has a surface shape inclined in the left-right direction so that the right side thereof is retracted, and a plurality of lens steps 18s are formed on the inner surface thereof. Each of these lens steps 18s is formed of a convex cylindrical reflecting surface element extending in the left-right direction, and is formed at an equal pitch in the vertical direction. The lens step 18s diffuses and transmits the reflected light from the reflective surface 16a in the vertical direction.

FIG. 4 shows the marker lamp 10 with its lens 18
It is a front view which removes and shows.

As shown in the figure, the reflector 16 has a plurality of reflecting surface elements 16 over its entire reflecting surface 16a.
s is formed. Each of these reflection surface elements 16s
Are allocated to each of the plurality of strip-shaped segments SG divided into vertical stripes.

The lateral width of each of the strip-shaped segments SG when viewed from the front of the lamp is determined by the optical axis A of the reflecting surface 16a.
Both the left and right sides of x are set so as to gradually increase as the distance from the optical axis Ax increases. Each of the reflection surface elements 16s allocated to each of the strip-shaped segments SG is formed as a right and left diffuse reflection surface element having a so-called multiple paraboloid as a reference surface.

That is, as shown in FIG. 5 which is a detailed sectional view taken along the line VV of FIG. 4, each of the reflecting surface elements 16s has the optical axis Ax as a common axis and the optical axis Ax and the light source bulb 12 .., Each having a common focal point at the intersection with the optical axis Ax ′ (that is, the position of the filament 12 a) and having different focal lengths, each of which is a reference plane. The surface is constituted by a curved surface having a different curvature (a convex cylindrical curved surface extending in the vertical direction). The focal lengths f1, f2,... Of the respective paraboloids of revolution P1, P2,... Are set to gradually increase as the distance from the optical axis Ax increases. Thus, while reducing the thickness of the reflector 16, the light source bulb 1 is formed by the reflection surface elements 16 s.
2 is diffused and reflected in the left-right direction.

In each of the reflection surface elements 16s formed with the multiple paraboloid as a reference surface, a step 20 is formed at the side end on the optical axis Ax side. The height of each of the steps 20 in the direction of the optical axis Ax is:
The left side of the reflecting surface 16a is substantially the same, but the right side of the reflecting surface 16a has a small depth dimension of the reflector 16 due to the left and right inclination of the lens 18, so that the optical axis It is set to be higher as the step is farther from Ax. Adjustment of the height of these steps is performed by the above-mentioned rotation paraboloid P
The adjustment is performed by adjusting the values of the focal lengths f1, f2,... Of 1, P2,.

FIG. 6 is a diagram showing how the reflection surface 16a is viewed from the front of the lamp when the light source bulb 12 is turned on.

As shown in the figure, since each of the reflection surface elements 16s has a left-right diffusion function, the reflection surface elements 16s
A substantially central portion in the left-right direction of s constitutes a band-shaped optical axis direction reflection area B that reflects light from the light source bulb 12 in the optical axis Ax direction. Then, the optical axis direction reflection area B appears to shine as the vertical stripe-shaped bright part Bro, and the strip-shaped optical axis direction non-reflection area D located between the respective bright parts Bro.
(That is, the light from the light source bulb 12 is transmitted to the optical axis Ax.
The area not reflected in the direction) is a non-bright part.

The left and right widths of the respective reflection areas B in the optical axis direction (that is, the bright portions Bro) are such that the right and left widths of the respective reflection surface elements 16s are gradually increased as the distance from the optical axis Ax is increased, but the curvature is reduced. From the optical axis Ax. Further, since the left and right widths of the non-reflective region D in the optical axis direction are set so as to gradually increase as the left and right widths of the respective band-shaped segments SG are separated from the optical axis Ax, the left and right widths are set as the distance from the optical axis Ax increases. It gradually widens.

In the figure, an area Do indicated by oblique lines is where light from the light source bulb 12 is incident but the optical axis Ax
The area Dso indicated by a dotted line is a part where the light from the light source bulb 12 does not enter due to the shadow of the stepped portion 20 and is not reflected.
This is a shadow portion that looks darker than the above-mentioned area Do that simply does not shine. The non-reflective area D in the optical axis direction is the area D
o and Dso.

FIG. 7 shows how the reflecting surface 16a is viewed from the front of the lamp when the light source bulb 12 is turned on in a state where the lens 18 is put on the reflector 16 (that is, a state as the lamp 10). FIG.

Since each lens step 18s has a function of vertically diffusing, each of the reflecting surface elements 16s
The bright portion Bro of s is dispersed in the vertical direction by each of the lens steps 18s, and appears as a bright portion Br1 that shines in a scattered manner as shown in the figure. At this time, since the lens steps 18s are formed at the same pitch in the vertical direction, the bright portions Br1 are formed at equal intervals in the vertical direction.

Since each of the diffusing lens steps 18s does not have a function of diffusing in the left and right directions, the left and right widths of each of the brilliant portions Br1 gradually widen as the distance from the optical axis Ax increases. The fact that the distance gradually widens as the distance from the optical axis Ax increases increases with the lens 18.
Is the same as the pattern of each of the glittering portions Bro in a state where is not covered.

As described in detail above, in the present embodiment, the width of the plurality of strip-shaped segments SG that divides the reflecting surface 16a of the reflector 16 into vertical stripes is determined from the optical axis Ax from the optical axis Ax in front view of the lamp. 4, the width of each of the reflection surface elements 16s appears to be gradually changed by external light, when not lit, as shown in FIG. When lit, see FIG.
As shown in (1), the distance between the bright portions Bro (that is, the left-right width of each non-reflection region D in the optical axis direction) appears to be gradually changed. As a result, a sense of perspective is created, and a person who observes the reflection surface 16a through the lens 18 can be given an impression with a sense of depth.

At this time, in the present embodiment, the width of each of the strip-shaped segments SG in a front view of the lamp is set to be wider as the strip-shaped segment located farther from the optical axis Ax is turned on. In any case when the lamp is not lit, the vicinity of the light source bulb 12 can be seen deep, whereby the sense of depth of the lamp 10 can be enhanced.

Further, in the present embodiment, since each of the reflecting surface elements 16s is formed of a cylindrical curved surface extending in the vertical direction, each of the luminous portions B at the time of lighting is provided.
ro is formed in the optical axis direction reflection area B at a substantially central portion in the left-right direction of each of the reflection surface elements 16s. The brighter the area becomes, the wider it becomes. Therefore, also in this respect, the vicinity of the light source bulb 12 can be seen deeply.

In this embodiment, since the step 20 is formed at the side end of the reflecting surface element 16s on the side of the optical axis Ax, when the light is not lit, the step 20 is formed by external light. 20 illuminates differently from the general portion of each of the reflection surface elements 16s, while, when lit, as shown in FIG.
A plurality of strip-shaped shadow portions Dso with respect to the light from the light source bulb 12 are formed on the reflection surface by the respective step portions 20, whereby the respective reflection surface elements 16 s
The boundaries between each other are clear. Therefore, a sharp impression can be given to a person who observes the reflection surface 16a through the lens 18.

In particular, in the present embodiment, at the right side of the reflection surface 16a, each stepped portion 20 is connected to the optical axis A.
Since it is set to be higher as the position is farther from x, the sharpness at the right end of the reflection surface 16a is enhanced, and the sense of depth can be further enhanced.

As described above, in the present embodiment, in the marker lamp provided with the step reflector, a person who observes the reflection surface through the lens and feels the depth regardless of whether the lamp is lit or not. And a sharp impression can be given, whereby the appearance of the lamp can be improved.

Further, in the present embodiment, a plurality of lens steps 18s formed of a cylindrical curved surface extending in the left-right direction are formed on the inner surface of the lens 18 at equal pitches in the vertical direction. Instead, the appearance of the reflection surface 16a can be changed by the vertical diffusion action of each of the lens steps 18s, so that the appearance of the lamp can be further improved. That is, as shown in FIG. 7, at the time of lighting, a plurality of brilliant portions Br1 whose upper and lower widths are constant and whose left and right widths increase as the distance from the optical axis Ax in the left and right direction are increased, are constant from the optical axis Ax at a constant vertical pitch. The pattern can be made to shine in a pattern in which the left and right pitches increase as the distance increases.

Next, a modified example of the first embodiment will be described.

FIG. 8 is a front view showing this modification, and FIG. 9 is a sectional view taken along line IX-IX.

As shown in these figures, the basic configuration of this modification is the same as that of the first embodiment, but the vertical pitch of a plurality of lens steps 18s formed on the lens 18 is different from that of the first embodiment. Are different. That is, the lens steps 18s are formed so that the vertical pitch gradually increases as the distance from the optical axis Ax in the vertical direction increases.

For this reason, in this modification, as shown in FIG. 10, when the lamp 10 in the lighting state is observed from the front, each of the glittering parts Bro shown in FIG. The luminous portions Br1 gradually increase in height as they move away from each other in the direction, and the entire lamp looks like a pattern in which the size of each luminous portion Br1 gradually increases radially from the optical axis Ax. This makes it possible to give the observer a more novel impression than in the first embodiment.

Next, a second embodiment of the present invention will be described.

FIG. 11 is a front view showing a vehicle marker light according to the present embodiment, and FIGS. 12 and 13 are XII-XI.
FIG. 3 is a sectional view taken along line I and XIII-XIII.

As shown in these figures, the marker lamp (lamp) 10 according to the present embodiment is a turn signal lamp provided at the rear right end of the vehicle body of the automobile, and its basic configuration is the tail of the first embodiment. Same as & stop lamp.

However, the marker lamp 10 according to the present embodiment is
Compared to the first embodiment, the left-right inclination angle of the lens 18 is large, and the left-right shape balance of the reflector 16 is poor.
Further, a light source bulb 12 is mounted on a slightly cylindrical socket 14.

A plurality of lens steps 18s are formed on the inner surface of the lens 18, and each of the lens steps 18s is composed of a convex cylindrical reflecting surface element extending in the left-right direction. The vertical pitch is formed so as to gradually narrow.

As shown by a two-dot chain line in FIG. 12, on both sides of the marker lamp 10, vehicle body panels 102 and 104 extend substantially flush with the lens 18.

FIG. 14 shows the marker lamp 10 and its lens 1
It is a front view which removes and shows 8.

As shown in the figure, a plurality of reflecting surface elements 16s constituting the reflecting surface 16a of the reflector 16 are allocated to each of a plurality of strip-shaped segments SG divided into vertical stripes as in the first embodiment. I have. However,
The left and right widths of each of the strip-shaped segments SG when viewed from the front of the lamp are set so as to gradually become narrower as the distance from the optical axis Ax increases, on both the left and right sides of the optical axis Ax on the reflection surface 16a.

Each of the reflecting surface elements 16s assigned to each of the strip segments SG has the optical axis Ax as a common axis, and sets the intersection of the optical axis Ax and the optical axis Ax 'as a common focal point. The point that each of a plurality of paraboloids of revolution having different focal lengths is formed as a reference plane is the same as in the first embodiment, but the method of setting the focal length of each paraboloid of revolution is large. Is different.

That is, in this embodiment, FIG.
As shown in FIG. 15 which is a detailed cross-sectional view taken along the line XV-XV, in the right reflection area of the reflection surface 16a (the area on the reflection surface 16a on the right side of the optical axis Ax), as in the first embodiment, A plurality of paraboloids of revolution P1 to be the reference planes,
While the focal lengths f1, f2,... Of P2,... Are set to gradually increase as the distance from the optical axis Ax increases, the left-side reflection area of the reflection surface 16a (see FIG. In the reflection surface 16a, on the left side of the optical axis Ax), the focal lengths f1 ', f2',... Of the plurality of paraboloids of revolution P1 ', P2',.
.. Are set so as to become smaller and larger gradually as the distance from the optical axis Ax increases. Thus, in the reflection surface 16a having a very shallow right reflection region and a very deep left reflection region,
The plurality of reflection surface elements 16s can be formed.

Each of the reflecting surface elements 16s is formed of a curved surface having a curvature different from that of the reference surface, as in the first embodiment. In this embodiment, the reflecting surface element 16s is formed of a concave cylindrical curved surface extending in the vertical direction. Have been. The light from the light source bulb 12 is diffused and reflected in the left-right direction by the respective reflection surface elements 16s.

Also in this embodiment, a step 20 is formed at the side end of the reflection surface element 16s on the optical axis Ax side. The method of setting the reference plane is different from that of the right reflection area. Since it is opposite to the left reflection area, in the right reflection area, as in the first embodiment, the side away from the optical axis Ax is formed as a stepped portion that retreats, whereas the left reflection area is formed. Is formed as a stepped portion protruding on the side away from the optical axis Ax.

Each of the step portions 20 is set to be higher in the left reflection region as the step portion is farther from the optical axis Ax, but in the right reflection region, three steps from the inside are set. The steps to the eyes are all set at substantially the same height, and the third and subsequent steps are set to be lower as the steps are farther from the optical axis Ax.

FIG. 16 is a diagram showing how the reflecting surface 16a is viewed from the front of the lamp when the light source bulb 12 is turned on.

As shown in the figure, since each of the reflection surface elements 16s has a left-right diffusion function, the reflection surface elements 16s
A substantially central portion in the left-right direction of s constitutes a band-shaped optical axis direction reflection area B that reflects light from the light source bulb 12 in the optical axis Ax direction. Then, the optical axis direction reflection area B appears to shine as the vertical stripe-shaped bright part Bro, and the strip-shaped optical axis direction non-reflection area D located between the respective bright parts Bro.
(That is, the light from the light source bulb 12 is transmitted to the optical axis Ax.
The area not reflected in the direction) is a non-bright part.

The left and right widths of the respective reflection areas B in the optical axis direction (that is, the bright portions Bro) are gradually narrowed as the left and right widths of the respective reflection surface elements 16s are further away from the optical axis Ax, but the curvature is increased. From the optical axis Ax. Further, since the left-right width of the non-reflection region D in the optical axis direction is set so as to gradually decrease as the left-right width of each of the strip-shaped segments SG moves away from the optical axis Ax, the farthest away from the optical axis Ax becomes. It gradually narrows.

In the figure, a region Do shown by oblique lines is where the light from the light source bulb 12 enters but the optical axis Ax
The area Dso indicated by a dotted line is a part where the light from the light source bulb 12 does not enter due to the shadow of the stepped portion 20 and is not reflected.
This is a shadow portion that looks darker than the above-mentioned area Do that simply does not shine. In the present embodiment, the shadow portion Dso is formed only in the right reflection region in which the step portion 20 is formed as a step portion in which the side away from the optical axis Ax retreats. The non-reflection area D in the optical axis direction is constituted by the area Do or the areas Do and Dso.

FIG. 17 shows how the reflecting surface 16a is seen from the front of the lamp when the light source bulb 12 is turned on in a state where the lens 18 is put on the reflector 16 (that is, a state as the lamp 10). FIG.

As shown in the figure, the bright portion Bro of each reflecting surface element 16s is vertically dispersed by the lens steps 18s, and the bright portion Br1 which shines in a scattered manner.
Looks like. At this time, each lens step 18s
Are formed so that the vertical pitch gradually decreases as the distance from the optical axis Ax increases.
The height dimension of r1 gradually decreases as the distance from the optical axis Ax in the vertical direction increases. Then, as a whole lamp, the size of each bright portion Br1 appears to shine in a pattern in which the size of the bright portion Br1 decreases radially from the optical axis Ax.

As described in detail above, also in the present embodiment, the width of the plurality of strip-shaped segments SG for dividing the reflecting surface 16a of the reflector 16 into vertical stripes is determined from the optical axis Ax in the front view of the lamp. 14, the width of each of the reflective surface elements 16s appears to be gradually changed by external light, when not lit, as shown in FIG. At the time of lighting, as shown in FIG. 16, the interval between the respective bright portions Bro (that is, the left-right width of each non-reflection region D in the optical axis direction) appears to gradually change. As a result, a sense of perspective is created, and a person who observes the reflection surface 16a through the lens 18 can be given an impression with a sense of depth.

At this time, in the present embodiment, the width of each of the band-shaped segments SG in a front view of the lamp is set so as to be narrower as the band-shaped segment is located farther from the optical axis Ax. In any case when the lamp is not lit, the vicinity of both ends of the reflection surface 16a can be seen deeply with a glittering feeling, and a unique feeling of depth can be given to the lamp. In particular, although the vicinity of the right end of the reflection surface 16a is close to the lens 18, a sense of depth can also be given to the vicinity of the right end.

Further, in the present embodiment, since each of the reflecting surface elements 16s is constituted by a cylindrical curved surface extending in the vertical direction, each of the luminous portions B at the time of lighting is provided.
ro is formed in the optical axis direction reflection area B at a substantially central portion in the left-right direction of each of the reflection surface elements 16s. The smaller the bright part, the narrower. Therefore, also at this point, the vicinity of both ends of the reflection surface 16a can be seen deeply.

In this embodiment, since the step 20 is formed at the side end on the optical axis Ax side of each of the reflection surface elements 16s, when the light is not lit, the step 20 is formed by external light. 20 illuminates differently from the general portion of each of the reflection surface elements 16s. On the other hand, at the time of lighting, as shown in FIG.
By 0, a plurality of strip-shaped shadow portions Dso for the light from the light source bulb 12 are formed on the reflection surface, and the boundary between the reflection surface elements 16s becomes clear. Therefore, a sharp impression can be given to a person who observes the reflection surface 16a through the lens 18.

Further, in the present embodiment, the height of each of the step portions 20 in the direction of the optical axis Ax in a portion near the right end of the right reflective area of the reflective surface 16a is far from the optical axis Ax. Since the position of the step portion is set to be lower at the position, the right and left widths of the shadow portion Dso formed on each of the reflection surface elements 16s can be reduced due to the presence of the step portion 20. Loss can be reduced.

As described above, in the present embodiment, in the marker lamp provided with the step reflector, a sense of depth and a sense of depth can be given to a person who observes the reflection surface through the lens regardless of whether the lamp is lit or not. A sharp impression can be given, thereby improving the appearance of the lamp.

In this embodiment, since a plurality of lens steps 18s each formed of a cylindrical curved surface extending in the left-right direction are formed on the inner surface of the lens 18, not only the reflecting surface 16a but also each of these The appearance of the reflection surface 16a can be changed also by the up-down diffusion action of the lens step 18s, whereby the appearance of the lamp can be further improved. That is, as shown in FIG. 17, at the time of lighting, the size of each bright portion Br1 appears to shine in a pattern in which the size gradually decreases radially from the optical axis Ax. Thus, a novel impression can be given to the observer.

Further, in this embodiment, since the right reflection area of the reflection surface 16a extends toward the vehicle body, the direct light from the light source bulb 12 can be emitted to the vehicle body. As a result, it is possible to sufficiently secure the irradiation light amount to the side of the vehicle body. In addition, since the step portion 20 is formed in the left reflection region of the reflection surface 16a to the rear region thereof, it is possible to increase the amount of light radiated to the vehicle body side even by the reflected light from the step portion 20. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing a vehicle marker light according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is a front view showing the marker lamp of the first embodiment with its lens removed.

FIG. 5 is a detailed sectional view taken along line VV of FIG. 4;

FIG. 6 is a diagram showing how the reflective surface is viewed from the front of the lamp when the light source bulb is turned on with the lens removed in the first embodiment.

FIG. 7 is a diagram showing how the reflection surface is viewed from the front of the lamp when the light source bulb is turned on with the lens covered in the first embodiment.

FIG. 8 is a front view showing a modification of the first embodiment.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a diagram showing how the reflection surface is viewed from the front of the lamp when the light source bulb is turned on with the lens covered in the second embodiment.

FIG. 11 is a front view showing a vehicle marker light according to a second embodiment of the present invention.

12 is a sectional view taken along line XII-XII of FIG.

13 is a sectional view taken along line XIII-XIII in FIG. 11;

FIG. 14 is a front view showing the marker lamp of the first embodiment with its lens removed.

15 is a detailed sectional view taken along line XV-XV in FIG.

FIG. 16 is a diagram showing how the reflection surface is viewed from the front of the lamp when the light source bulb is turned on with the lens removed in the second embodiment.

FIG. 17 is a diagram showing how the reflection surface is viewed from the front of the lamp when the light source bulb is turned on with the lens covered in the second embodiment.

FIG. 18 is a perspective view of a reflector showing a conventional example.

FIG. 19 is a diagram showing how the reflector reflecting surface looks from the front of the lamp when the light source bulb is turned on in the conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 marker light (lighting fixture) 12 light source bulb 12 a filament 16 reflector 16 a reflecting surface 16 s reflecting surface element 18 lens 18 s lens step 20 stepped portion 102, 104 body panel Ax optical axis of reflector Ax ′ optical axis of light source bulb B optical axis direction reflection Region Bro, Br1 Bright portion D Non-reflective region in optical axis direction Do Non-light portion Dso Shadow portion SG Band-shaped segment

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F21S 8/10 F21W 101: 14 F21Y 101: 00

Claims (4)

(57) [Claims] 1. A vehicular marker light comprising: a light source bulb; a reflector having a reflection surface for reflecting light from the light source bulb forward; and a lens provided in front of the reflector. Is configured by allocating a reflection surface element to each of a plurality of strip-shaped segments divided into stripes, and the width of each of the strip-shaped segments in a lamp front view is from the optical axis of the reflector to the strip-shaped segment. It is set so as to gradually change according to the distance, a step portion is formed at a side end of each of the reflective surface elements, and each of the reflective surface elements has the optical axis as a common axis and Each of the plurality of paraboloids of revolution with different focal lengths having a fixed point on the optical axis as a common focal point is constituted by a cylindrical curved surface set as a reference plane. Distance is set so as to vary gradually with the distance from the optical axis to each of the reflective surface elements, vehicular marker lamp, characterized in that. 2. The width of each of the band-shaped segments in a lamp front view is set to be wider as the band-shaped segment is located farther from the optical axis, and the height of each of the step portions in the optical axis direction is increased. 2. The vehicular marker lamp according to claim 1, wherein a height of the stepped portion located farther from the optical axis is set higher. 3. The width of each of the band-shaped segments in a lamp front view is set so as to be narrower as the band-shaped segment is located farther from the optical axis, and the height of each of the step portions in the optical axis direction is set to be smaller. The vehicular marker lamp according to claim 1, wherein the height of the stepped portion is set to be lower at a position farther from the optical axis. 4. The lens according to claim 1, wherein a plurality of strip-shaped lens steps extending in a direction perpendicular to a direction in which the strip-shaped segments extend are formed on the lens.
4. The vehicle marker light according to any one of items 1 to 3.