JP2002298620A - Lighting device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new and attractive lighting device for a vehicle of which, the color tone of an outer lens when it is not lighting, is not limited to the function color at lighting. SOLUTION: In the daytime, as the sun light L, entered into a fluorescent part 10 from its surface, with a color turned into the color corresponding to the fluorescent part 10, is reflected to a lens main body 9 side by an end surface 10a of the fluorescent part 10 or the like, the color corresponding to the original function color and the color corresponding to the fluorescent part 10 is mixed, and a new and attractive color tone is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle lamp such as a rear combination lamp and other signal lights, sign lights, and illumination lights.

[0002]

2. Description of the Related Art A rear combination lamp or the like installed at the rear of an automobile uses, as a functional color, a color of irradiation light emitted from the lamp at the time of lighting in order to sufficiently exhibit the function of each lamp constituting the lamp. Stipulated by laws and regulations. Therefore, the outer lens of each lamp also presents a color corresponding to its functional color. For example, the back lamp is colorless and transparent, the stop lamp is red and the turn signal lamp is amber and transparent (for a similar technique, see JP-A-2001-47935).

[0003]

However, in such a conventional technique, the color of the outer lens of the lamp is limited to a color corresponding to the functional color at the time of lighting (at night). A predetermined monotonous color tone is forced even during non-lighting or during daytime when color is not required, and the degree of freedom in design color design around the lamp is limited.

The present invention has been made by paying attention to such a conventional technique, and aims to make the color tone of the outer lens at the time of non-lighting new and attractive without being limited to the functional color at the time of lighting. It is intended to provide a vehicular lamp which can be used.

[0005]

According to the first aspect of the present invention,
A vehicle lamp in which a transparent outer lens having a colored or colorless functional color is attached to an opening of a housing, wherein the outer lens has at least a part of a peripheral portion of a color different from a lens body having a functional color. A transparent fluorescent part containing a fluorescent material, and an opaque part having a thickness that does not completely block the boundary part is provided on the surface side of the boundary part between the fluorescent part and the lens body. Here, “transparent” means not only colorless and transparent but also includes colored and transparent as described above.

According to the first aspect of the present invention, sunlight that has entered the fluorescent portion from the surface during daytime becomes light of a color corresponding to the fluorescent portion, and is reflected toward the lens body by the end face of the fluorescent portion. Therefore, in the lens body, the color corresponding to the original functional color and the color corresponding to the fluorescent portion are mixed, resulting in a new and attractive color tone. Therefore, by selecting the color of the fluorescent portion, the color of the outer lens can be delicately changed at the time of non-lighting, and the degree of freedom of the design color design around the lamp increases. At the time of lighting, since the light from the lens body is blocked by the opaque portion on the front side, the surface of the fluorescent portion does not shine unnecessarily bright in its color tone. Also, even if it shines to some extent,
Since the opaque portions are clearly separated from the functional colors, they are not mistaken for the functional colors.

According to a second aspect of the present invention, a flange-shaped seal portion attached to the opening of the housing is formed on the inner surface side of the outer lens peripheral portion, and the entire peripheral portion including the seal portion becomes a fluorescent portion. ing.

According to the second aspect of the present invention, since the entire peripheral portion including the seal portion is a fluorescent portion, the cross-sectional area of the fluorescent portion is increased, and sunlight entering the fluorescent portion responds to the fluorescent portion. It is easy to become a color.

According to a third aspect of the present invention, the thickness of the boundary between the fluorescent portion and the lens body is set to be larger than that of the lens body.

According to the third aspect of the present invention, since the thickness of the boundary between the fluorescent portion and the lens body is set to be large, the sunlight inlet at the boundary between the fluorescent portion and the lens body becomes large. In addition, the color of the lens body can be further different from the original mechanical color.

In the invention according to claim 4, an inclined surface is formed on the end side of the base end of the seal portion.

According to the fourth aspect of the present invention, since the inclined surface is formed on the end side of the base end of the seal portion, the sunlight entering from the surface side of the fluorescent portion can be efficiently transmitted to the lens body by the inclined portion. Can be reflected.

According to a fifth aspect of the present invention, an irregular prism is formed on the inner surface of the lens body.

According to the fifth aspect of the present invention, since the uneven prism is formed on the inner surface side of the lens body, sunlight guided from the fluorescent portion to the lens body side is applied to the entire lens body by the prism. Diffuses the lens body into a different color tone.

According to a sixth aspect of the present invention, the housing is provided with a rib capable of preventing light from a light source from reaching the fluorescent portion.

According to the sixth aspect of the present invention, the light from the light source is blocked by the rib, and it is possible to reliably prevent the fluorescent portion from shining when the light source is turned on.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS.

This embodiment shows a left portion of a rear combination lamp 1 installed on the left and right sides of the rear portion of the vehicle. This rear combination lamp 1
Consists of three "lights" from the top: a stop lamp 2, a turn signal lamp 3, and a back lamp 4.
The stop lamp 2 has a functional color of “red”, the turn signal lamp 3 has a functional color of “amber”, and the back lamp 4 has a functional color of “colorless and transparent”. Here, the “amber” turn signal lamp 3 will be described as a representative.

Outer lens 5 of turn signal lamp 3
Is mounted on an opening of a housing 6 having a bulb as a light source (not shown) at the center. A flange-shaped seal portion 7 is formed at a peripheral portion of the outer lens 5 at a position slightly inside from the end face 10 a, and the seal portion 7 is attached in a state in which the seal portion 7 is in contact with an opening of the housing 6. The housing 6 is installed in a state where the housing 6 is incorporated inside the vehicle body 8, and is provided with a rib 6a.
The light La from a bulb (not shown) is blocked to prevent the fluorescent portion 10 from illuminating when the bulb is turned on. The outer lens 5 forms a surface that is continuous with the outer surface of the vehicle body 8.

The lens body 9, which is a large part of the outer lens 5, has an amber transparent color corresponding to the functional color, but only the right and left ends of the lens body 9 of the peripheral portion including the seal portion 7 are provided. The transparent blue fluorescent portion 10 includes a blue fluorescent material different from the functional color. The thickness near the boundary 11 between the lens body 9 and the fluorescent portion 10 is larger on the inner surface side than the general portion of the lens body 9. An uneven prism 12 is formed on the inner surface side of the lens body 9.

A blue opaque portion 13 having a thickness that does not completely block the boundary 11 is provided on the front surface of the boundary 11 between the lens body 9 and the fluorescent portion 10. As described above, the outer lens 5 is
Although the three portions of the fluorescent portion 10 and the opaque portion 13 are formed by three-color resin molding, the surface of the boundary may be covered by an outer cover.

At the base end of the seal portion 7, which is a part of the fluorescent portion 10, an inclined surface 10b of about 45 ° is formed on the outer portion. The inclined surface 1 from the back side of the end face 10a
By applying a surface treatment 15 such as silver coating or vapor deposition to 0b, the light from the fluorescent section 10 can be further sent to the lens body 9 to increase the reflection efficiency.

Therefore, the turn signal lamp 3 is
When lit at night, the outer lens 5 emits amber light according to laws and regulations. In addition, at the time of lighting,
Since the light from the lens body 9 is blocked by the opaque part 13 on the front side, the fluorescent part 10 does not emit light with a color tone different from the functional color on the front side more brightly than necessary. In addition, even if it shines to some extent, since it is clearly separated from the functional color by the opaque part 13, it does not cause misunderstanding as the functional color.

When the light is not turned on in the daytime, as shown in FIG. 3, the sunlight L that has entered the inside of the fluorescent section 10 from the surface side turns into blue light corresponding to the fluorescent section 10, and
While being reflected by the end surface 10a and the inclined surface 10b of the zero, the light passes through a portion of the boundary portion 11 that is not covered by the opaque portion 13, and is guided toward the lens body 9. In particular, in this embodiment, since the slope 10b is formed at the base end of the seal portion 7,
The sunlight L can be more reliably reflected toward the lens body 9 by the inclined portion 10b.

Therefore, in the lens body 9, the amber color corresponding to the original functional color and the blue color corresponding to the fluorescent portion 10 are mixed to obtain a new color tone. Moreover, depending on the angle of the sunlight L and the distance from the fluorescent section 10, the lens body 9
The color tone of the rear combination lamp 1 can be slightly changed, and a new and attractive color tone which has not been obtained in the past can be obtained. Therefore, the degree of freedom of a design color design around the rear combination lamp 1 can be increased.

When the sunlight L is reflected in the fluorescent section 10,
Since the left and right ends of the peripheral portion including the seal portion 7 are the fluorescent portions 10, the cross-sectional area of the fluorescent portion 10 is large, and the sunlight L that has entered the fluorescent portion 10 has a color corresponding to the fluorescent portion 10. Easy to be.

Since the thickness of the boundary portion 11 between the fluorescent section 10 and the lens body 9 is set to be large, the fluorescent section 10
The entrance of sunlight L at the boundary 11 between the lens body 9 and the lens body 9 becomes large, and the color of the lens body 9 can be further different from the original functional color.

Further, sunlight L guided into the lens body 9
Is diffused throughout the lens body 9 by the prism 12 on the inner surface of the lens body 9, so that the lens body 9 tends to have a color tone different from the functional color over a wide range.

In addition, since the surface treatment 15 is applied to the back surface of the end surface 10a of the fluorescent portion 10 and the back surface of the inclined surface 10b, light emitted from the fluorescent portion 10 can be reflected to the lens body 9 side. Accordingly, the sunlight L can be reliably guided to the lens body 9 side.

In this embodiment, the turn signal lamp 3 of the rear combination lamp 1 has been described as an example.
It is not limited to this.

[0031]

According to the present invention, sunlight entering the fluorescent portion from the surface during daytime becomes light of a color corresponding to the fluorescent portion and is reflected toward the lens body by the end face of the fluorescent portion. In the lens body, the color according to the original functional color,
The colors according to the fluorescent parts are mixed, resulting in a new and attractive color tone. Therefore, by selecting the color of the fluorescent portion, the color of the outer lens can be delicately changed at the time of non-lighting, and the degree of freedom of the design color design around the lamp increases. At the time of lighting, since the light from the lens body is blocked by the opaque portion on the front side, the surface of the fluorescent portion does not shine unnecessarily bright in its color tone. In addition, even if it shines to some extent, it is clearly separated from the functional color by the opaque portion, so that it is not mistaken for the functional color.

[Brief description of the drawings]

FIG. 1 is a front view showing a rear combination according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line SA-SA shown in FIG.

FIG. 3 is an enlarged cross-sectional view of a peripheral portion of the outer lens of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear combination lamp 2 Stopper lamp 3 Turn signal lamp 4 Back lamp 5 Outer lens 6 Housing 7 Sealing part 8 Car body 9 Lens body 10 Fluorescent part 10a End face 10b Slope 11 Boundary part 12 Prism 13 Opaque part 14 Rib 14a Reflecting surface L Sunlight

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3K080 AA01 AB00 BA01 BB06 BB08 BB12 BB20 BC11 BD01

Claims (6)

[Claims] 1. A vehicle lamp in which a transparent outer lens having a colored or colorless functional color is attached to an opening of a housing, wherein the outer lens has a lens body having at least a part of a peripheral edge having a functional color. An opaque portion having a thickness that does not completely block the boundary portion is provided on a transparent fluorescent portion containing a fluorescent material of a color different from that of the fluorescent portion and on the surface side of the boundary portion between the fluorescent portion and the lens body. Vehicle lighting device characterized by the above-mentioned. 2. The vehicular lamp according to claim 1, wherein a flange-shaped seal portion attached to an opening of a housing is formed on an inner surface side of a peripheral portion of the outer lens, and the peripheral edge including the seal portion. A vehicular lamp characterized in that the entire part is a fluorescent part. 3. The vehicle lighting device according to claim 1, wherein a thickness of a boundary between the fluorescent portion and the lens body is set to be larger than that of the lens body. Vehicle lighting. 4. The vehicle lamp according to claim 2, wherein an inclined surface is formed on an end side of a base end of the seal portion. 5. The vehicular lamp according to claim 1, wherein an irregular prism is formed on an inner surface of the lens body. 6. The vehicular lamp according to claim 1, wherein a rib is formed on the housing so as to prevent light from a light source from reaching the fluorescent portion. Vehicle lighting device characterized by the above-mentioned.