JP2804414B2 - Light fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp for automobiles and lighting, and more particularly to a technique for improving the appearance when the lamp is not lit.

[0002]

2. Description of the Related Art Pigments are known as a means for coloring synthetic resins and paints. One type of such pigments is a pearl pigment formed by forming a thin film of titanium dioxide or iron oxide on mica pieces. In this pearl pigment, the incident light is regularly multiple-reflected by the plate-shaped pigment particles, so that the reflected light causes interference, and a pearly iris color is obtained. Is obtained.

[0003] As an application field of such pearl pigments,
2. Description of the Related Art Conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. 1-104673, it is known to use it for coating an outer panel of an automobile body. By the way, recently, as a field of application of such pearl pigments, the use of such pearl pigments in lamps such as headlamps for automobiles has been studied. A pearl pigment-containing coating layer is formed on the lens surface of a lamp such as a lamp, and when the lamp is not lit, the coating layer is colored iris by external light, thereby giving the lamp a unique appearance. It is considered.

However, when pearl pigments are used in lamps, there are technical problems as described below.

[0005]

That is, in a lamp such as an automobile headlamp, it is necessary to secure an essential function of emitting light emitted from a light source bulb to the outside through a lens. The lens is usually a clear one with good light transmittance, but if a coating layer containing pearl pigment is formed on such a clear lens surface, when light enters from the outside, Part of this light is transmitted through the lens surface, reflected from the inside of the lamp, transmitted again through the lens surface, and emitted to the outside.

However, when such reflected light is generated, the reflected light also passes through the coating layer, so that the reflected light is mixed with the light reflected from the pearl pigment. There is a problem that the obtained iris color is weakened and the effect of the pearl pigment is not sufficiently exerted. Such a problem becomes more prominent in, for example, a structure in which a lamp is provided with a reflector that reflects light emitted from a light source bulb.

Further, when a coating layer containing a pearl pigment is formed on the surface of a lens of a bright color such as white, external light is reflected by the lens, so that the color of the pearl pigment becomes difficult to see. The present invention has been made in view of the above problems, and an object of the present invention is to provide a lamp capable of sufficiently exhibiting an iris color effect obtained with a pearl pigment.

[0008]

Means for Solving the Problems In order to achieve the above object, a first invention is a lens, a lens body to which the lens is mounted, and a lens body mounted on the lens body, which is turned on through the lens at the time of lighting. And a light source bulb for emitting light to the lens , wherein a black pigment is mixed in the lens.
In this case, the lens is a smoke-like lens having a low light transmittance, and a color changing coating layer containing a pearl pigment is provided on the surface of the lens.

According to a second aspect of the present invention, there is provided a lens, a lens body on which the lens is mounted, and a light source bulb mounted on the lens body and emitting light outward through the lens when the light is turned on. In the lamp, a color change coating layer containing a pearl pigment is provided on the surface of the lens, and a smoke-like inner lens having a low light transmittance is provided inside the lens.

[0010]

According to the first aspect of the invention, the lamp of the first aspect is configured to reflect external light.
Reduces the color and transmits the color change coating layer,
After passing through the lens, it is reflected by the lens body and
Effectively prevents the light traveling toward the outside from being emitted to the outside.
That is, by mixing a black pigment into the lens,
Configuration with a smoke-tone lens with low light transmittance.
When the light source bulb is not lit, external light
Absorbs light, reduces reflected light, and passes through the lens.
Light that reflects off the lens body and travels back to the lens
Is absorbed by the lens and is not released to the outside.
You.

According to the lamp of the second aspect of the present invention, the color change coating layer containing the pearl pigment is provided on the lens surface, and the smoke-like inner lens having low light transmittance is provided inside the lens. When the external light enters when the light source bulb is not lit, the light transmitted through the color change coating layer is reflected by the lens body after passing through the lens and the inner lens, and again passes through the inner lens and the lens to the outside. Although the light is emitted, since the light transmittance of the inner lens is low, the amount of reflected light that is absorbed when passing through the inner lens and emitted to the outside is extremely small.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a first embodiment of a lamp according to the present invention. The lamp shown in FIG. 1 is one in which the present invention is applied to a lamp such as a headlamp for an automobile. A lamp 10 includes a lens 12 and a lens body 14.
And a light source bulb 16.

The lens body 14 has a base portion 14a formed in a parabolic shape, a flange portion 14b formed on the outer periphery of the base portion 14a, and a concave groove 14 formed in the flange portion 14b.
c and is fixed to a vehicle body (not shown). The lens 12 has a substantially concave cross section, and its outer peripheral edge is mounted and fixed in the concave groove 14 c of the lens body 14 with the sealant 18 interposed therebetween. On the inner peripheral surface of the lens body 14, a reflector 20 formed by an aluminum vapor deposition process or the like is provided. Base 14a of lens body 14
A bulb mounting hole 22 is formed integrally with the rear top portion, and the light source bulb 16 is mounted and fixed in the bulb mounting hole 22.

The basic structure of the above-described lamp 10 for a vehicle is the same as that of the conventional lamp, but the lamp 10 shown in FIG. 1 has the following remarkable features. That is, in the automotive lamp 10 shown in FIG.
2, a color changing coating layer 24 is provided on the front side. The color change coating layer 24 has a pearl pigment 26 in which a thin film of titanium dioxide, iron oxide, or the like is formed on a plate-like mica piece, and a paint 28 containing the pearl pigment 26 in a dispersed state. Is formed on the entire surface of the lens 12.

The lens 12 is a smoke-like lens having a low light transmittance by mixing a black pigment 32 into the lens material 30. In the automotive lamp 10 configured as described above, when the light source bulb 16 is turned on, the light from the light source bulb 16 is reflected by the paraboloid of the reflector 20 and then transmitted outward through the lens 12. Released.

On the other hand, when the light source bulb 16 is not lit, when external light is incident, the light is first transmitted to the color changing coating layer 2.
4 and the color change coating layer 24 contains the pearl pigment 26, the paint 28 is colored iris by the multiple interference of the light reflected by the pearl pigment 26, and a part of the external light is Through the color change coating layer 24,
After passing through the lens 12, the light is reflected by the reflector 20 and emitted again to the outside.

At this time, in the automotive lamp 10 of the present embodiment, the lens 12 is a smoke-like lens having a low light transmittance by mixing the black pigment 32 with the lens 12 itself.
When external light enters, the light transmitted through the color change coating layer 24 passes through the lens 12, is reflected by the reflector 20, passes through the lens 12 again, and is emitted to the outside.
The reflected light that is absorbed by the black pigment 32 when passing through the lens 12 and emitted to the outside is extremely reduced.

Therefore, the iris color obtained from the pearl pigment 26 of the color change coating layer 24 is very little weakened, and the coloring effect of the pearl pigment 26 can be sufficiently exerted. By matching the color tones with the color of the vehicle body,
A special design that emphasizes the portion of the vehicle lighting device 10 by making the 0 portion completely inconspicuous in the daytime or by making the color tone obtained with the pearl pigment 26 a complementary color relationship with the color tone of the vehicle body side Can be.

[0019]

FIG. 2 shows a second embodiment of the lamp according to the present invention. The lamp shown in the figure is a case where the present invention is applied to a vehicle lamp 10a as in the above embodiment,
The same reference numerals are given to the same or corresponding portions as those in the above-described embodiment, and the description thereof is omitted. Only the characteristic portions will be described below. The automotive lamp 10a shown in FIG. 2 is provided with a color-changing coating layer 24 containing a pearl pigment on the front side of a smoke-like lens 12 having a low light transmittance, in which a black pigment is mixed, similarly to the above embodiment. Have been.

An annular light-shielding coating layer 34 is provided on the outer peripheral portion of the inner surface of the lens 12. In the automotive lamp 10a thus configured, the same functions and effects as those of the first embodiment can be obtained, and in this embodiment, the following functions and effects can also be obtained. That is, the automotive lamp 10
When a is not lit, since the external light is reflected by the reflector 20 and emitted again as described above, the iris color of the color change coating layer 24 is weakened. The reflected external light becomes almost parallel rays when reflected by the reflector 20, and such parallel rays give a strong stimulus to the viewer, and further weaken the iris color of the color change coating layer 24.

However, as in this embodiment, the lens 12
When the light-shielding coating layer 34 is provided on the outer peripheral portion of the inner surface, when reflected by the reflector 20, external light that becomes almost parallel rays is blocked, so that the iris color obtained by the color change coating layer 24 is further enhanced. It will be possible to get out. The means for blocking external light in this way can be achieved not only by forming the light-shielding coating layer 34 on the inner periphery of the lens 12 but also by forming the light-shielding coating layer 34 on the outer periphery of the lens 12. Further, a structure in which the lens 12 is formed in two colors and the outer peripheral portion of the lens 12 is blackened to form a light-shielding layer, or a structure in which a wall covering the outer peripheral portion of the lens 12 is provided on the vehicle body side to form a light-shielding portion. Can be adopted.

FIG. 3 shows a third embodiment of the lamp according to the present invention. The lamp shown in the figure is a case where the present invention is applied to the vehicle lamp 10b as in the above embodiment,
The same reference numerals are given to the same or corresponding portions as those in the above-described embodiment, and the description thereof is omitted. Only the characteristic portions will be described below. The automotive lamp 10b shown in FIG. 3 is provided with a color changing coating layer 24 containing a pearl pigment on the front side of the lens 12a as in the above embodiment.

The lens 12a is a clear lens, and an inner lens 36 is provided inside the lens 12a at a predetermined interval. The inner lens 36 is a smoke-like lens having a low light transmittance by mixing a black pigment into the lens material, for example. The same effect as that of the first embodiment can be obtained by the automotive lamp 10b configured as described above.

FIGS. 4 and 5 show a fourth embodiment of the lamp according to the present invention. The lamp shown in the figure is a case where the present invention is applied to an automobile rear combination lamp,
The rear combination lamp shown in FIG. 1 has a stop lamp unit 38 and a turn signal lamp unit 39 integrated with each other. In the figure, the reference numeral 40 denotes a container-shaped lens body, and the lens body 40 is formed by a shade 42 extending in the vertical direction and a lens body portion 40a on the stop lamp portion 38 side and a turn signal lamp portion 39.
Light source bulbs 48 and 50 are inserted and fixed in bulb insertion holes 44 and 46 formed on the rear lens body sections 40a and 40b, respectively.

On the inner surface side of each of the lens body portions 40a, 40b, there are formed reflectors 52, 54 for guiding light emitted from the bulbs 48, 50 to the front, respectively. Further, a concave groove 56 formed on the outer periphery of the front surface of the lens body 40 is provided.
Inside, a lens 58 having a concave cross section is mounted via a seal material 60. In this embodiment, the lens 58 is provided such that a red functional color is obtained at the stop lamp section 38.
The red pigment 62 is mixed into the lens material 64, and the amber pigment 66 is mixed into the lens material 64 so that the turn signal lamp section 39 can obtain a functional color of amber.

Further, the lens 58 has the pigment 62,
Along with 66, a black pigment 68 for lowering the light transmittance of the lens 58 and forming a smoke-like lens is mixed. The pearl pigment 26 is provided on the front side of the lens 58.
Is provided. The color change coating layer 70 is formed so as to provide a circular non-forming portion 72 at the stop lamp portion 38 and to provide a triangular non-forming portion 74 at the turn signal lamp portion 39, as shown by oblique lines in FIG. Formed.

The portion where the color change coating layer 70 is not formed can be not only the symbol shown in FIG. 5 but also a character such as 4WD. In the combination lamp configured as described above, when the light source bulbs 48 and 50 are turned on, the light source bulb 4
After the light from the lenses 8 and 50 is reflected by the paraboloids of the reflectors 52 and 54 and passes through the lens 58, the pigment 6
The stop lamp 38 is colored red and the turn signal lamp 39 is colored amber.

On the other hand, when the light source bulbs 48 and 50 are not lit, when external light enters, the light incident on the portion where the color change coating layer 70 is provided contains the pearl pigment 26 in the color change coating layer 70. So, this pearl pigment 26
Due to the multiple interference of the light reflected by, the portion where the coating layer 70 is present is colored iris, and part of the external light is transmitted through the color changing coating layer 70 and the non-formed portions 72 and 74,
The light is reflected by the reflectors 52 and 54 and emitted to the outside again.

At this time, in the combination lamp of this embodiment, since the lens 58 is a smoke-like lens having a low light transmittance by mixing the black pigment 68 into the lens 58, the reflected light passes through the lens 58. When the black pigment 6
8, the reflected light that passes through the coating layer 70 and is emitted to the outside becomes very small, and in the non-formed portions 72 and 74 of the coating layer 70, this portion becomes red or amber due to incoming and reflected external light. It is colored.

For this reason, the iris color of the color change coating layer 70 is sufficiently exhibited, and the difference in color from the portion where the color change coating layer 70 is not formed becomes very clear.
The means for coloring the stop lamp section 38 and the turn signal lamp section 39 to a predetermined functional color shown in the above-described embodiment is not limited to a configuration in which a pigment is mixed into the lens 58, as shown by a virtual line in FIG. Means for providing a red or amber cap on the outer periphery of the light source bulbs 48 and 50 may be used. When symbols and characters are not displayed when the light source bulbs 48 and 50 are not lit, a color changing coating layer 70 may be provided on the entire surface of the lens 58.

FIG. 6 shows a fifth embodiment of the lamp according to the present invention. The lamp shown in the figure is a case where the present invention is applied to an automobile front combination lamp,
The front combination lamp shown in the figure has a head lamp unit 76 and a turn signal lamp unit 78 integrated with each other. In the figure, reference numeral 80 denotes a container-shaped lens body. The lens body 80 is formed by a vertically extending shade 82 and a lens body 80a on the headlamp 76 side and a turn signal lamp 78.
Light source bulbs 88 and 90 are respectively inserted and fixed in bulb insertion holes 84 and 86 formed on the rear apexes of the lens body sections 80a and 80b.

Reflectors 92 and 94 are formed on the inner surfaces of the lens body portions 80a and 80b, respectively, for guiding light emitted from the bulbs 88 and 90 to the front. Further, a concave groove 96 formed on the outer periphery of the front surface of the lens body 80.
Inside, a lens 98 having a concave cross section is mounted via a seal material 100. The lens 98 is a clear lens in this embodiment, and an inner lens 102 is provided inside the headlamp 76 at a predetermined distance from the lens 98 on the headlamp section 76 side. This is a smoke-like lens with low transmittance.

The head lamp section 76 of the lens 98
The first color change coating layer 104 containing a pearl pigment is provided only on the front side of the first color changing layer. On the other hand, on the side of the turn signal lamp portion 78, a cap 106 having an amber color is provided on the outer periphery of the light source bulb 90, and a second color changing coating layer 108 is formed on the outer periphery of the cap 106. In the combination lamp configured as described above, when the light source bulb 88 is turned on, the light from the light source bulb 88 is reflected by the paraboloid of the reflector 92 and then emitted to the outside through the lenses 98 and 102. When the light source bulb 90 is turned on, the light from the bulb 90 is colored amber when passing through the cap 106, and is emitted to the outside through the lens 80.

On the other hand, when the light source bulbs 88 and 90 are not lit, when external light enters, the headlamp 76 side
Since the first color change coating layer 104 is provided and the color change coating layer 104 contains a pearl pigment, it is colored iris by the multiple interference of light reflected by the pearl pigment. At this time, in the combination lamp of this embodiment,
Inner lens 102 having low light transmittance inside lens 98
Is provided, the light transmitted through the first coating layer 104 and reflected by the reflector 92 is absorbed each time the light passes through the lens 102, and the reflected light emitted outside through the coating layer 104 is Very low.

Further, the external light incident on the turn signal lamp portion 78 is reflected by the second color changing coating layer 108 provided on the surface of the cap 106 and then reflected again by the reflector 94 via the lens 98. The light is emitted to the outside, whereby the turn signal lamp 78 is also iris-colored by the pearl pigment. Therefore, in the case of this embodiment, the head lamp unit 76 and the turn signal lamp unit 78
This is suitable for giving a sense of unity.

In the above embodiment, the case where the present invention is applied to lamps such as headlamps and combination lamps for automobiles is exemplified. However, the present invention is not limited to this. It can also be applied to lighting fixtures. Further, in the above-described embodiment, an example in which a reflector is provided in a lamp such as a headlamp, but the present invention can be applied to a direct-type lamp without a reflector.

Further, in the above-described embodiment, the color change coating layer containing the pearl pigment is provided on the surface of the lens or the like, but the pearl pigment is mixed in the lens material and the smoke layer is provided on the inner surface of the lens. Alternatively, the smoke layer can be formed by two-color molding of a smoke resin material or application of a sukuk paint.

[0039]

As described above in detail in the embodiments,
ADVANTAGE OF THE INVENTION According to the lamp concerning this invention, the coloring of the color change coating layer containing a pearl pigment can be fully exhibited.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a lamp according to the present invention.

FIG. 2 is a sectional view showing a second embodiment of the lamp according to the present invention.

FIG. 3 is a sectional view showing a third embodiment of the lamp according to the present invention.

FIG. 4 is a sectional view showing a fourth embodiment of the lamp according to the present invention.

FIG. 5 is an explanatory front view of the lamp shown in FIG. 4;

FIG. 6 is a sectional view showing a fourth embodiment of the lamp according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Automotive lamp 12 Lens 14 Lens body 16 Light source lamp 24 Color changing coating layer 26 Pearl pigment 32 Black pigment

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F21Q 1/00 F21M 3/02

Claims (2)

(57) [Claims] And 1. A lens, a lens body the lens is mounted, the mounted lens body, in lamp having a light source bulb that emits light to the outside through the lens at the time of lighting, the lens A lighting device characterized in that a black pigment is mixed into the lens to make the lens a smoke-like lens having a low light transmittance, and a color changing coating layer containing a pearl pigment is provided on the surface of the lens. 2. A lamp comprising: a lens; a lens body on which the lens is mounted; and a light source bulb mounted on the lens body and emitting light outward through the lens when the lens is turned on. A lamp comprising: a color changing coating layer containing a pearl pigment on a surface thereof; and a smoke-like inner lens having a low light transmittance inside the lens.