JPS6079602A - Lamp cover of automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a lamp cover used in an automobile henno-dramp, rear combination lamp, etc.

[Prior Art] [Prior Art] [Recently, in automobiles, for the purpose of improving aerodynamic characteristics and styling, unusually shaped headlamps in which the nose and nose lamps are flush with the Δε diameter surface have been added.

By the way, these odd-shaped headlamps make the presence of the headlamps clearly visible, making it difficult to clearly see the area around the front grille. For this reason, it was desired to eliminate the presence of the Heno 1 lamp and make the body line look more beautiful.

In order to eliminate the presence of this headlamp, it is best to make the headlamp the same color as the body.

Possible methods for this include painting and louvers.

The entire surface of the headlamp cover is painted in the same color as the body in a mesh or dot shape.
゛The headlights appear to be almost the same color as the body. However, with such coating, the light from the headlamp is significantly blocked, resulting in an absolute lack of light, and furthermore,
This is undesirable because the color of the pigment used in the coating is colored by light. In addition, the method of covering the head lamp with a louver narrows the luminous flux, limits the pre-in area, and the &J, , ff, -J head lamp is visible from the front.
This is also not the preferred method.

In recent years, this idea has been further advanced, and sports cars etc. have retractable headlamps or tractor pull lamps (
This retractable lamp is stored inside the body when not in use, so there is no presence of a headlamp, the area around the front grille can be seen clearly, and the body The lines become beautiful.

However, this type of screaming lamp is inferior to the speed of lighting in an emergency, and the air resistance increases when lighting the lamp.Furthermore, the lighting structure requires multiple parts, which increases costs. Problematic power such as connection (there was).

[Purpose of the invention]

The present invention was made in order to solve the above-mentioned problems of the prior art.When the lamp is off, it looks the same color as the car body, and when the lamp is on, the color is white and amber (yellow). The purpose of the present invention is to provide automobile lamp covers that come in colors such as brown), red, etc.

[Structure of the invention]

According to the present invention, such an object is to provide a lamp cover formed flush with a body surface so as to appear integral with the four-dimensional surface of an automobile, the lamp cover comprising a transparent substrate and a transparent substrate. and an optical interference film made of an optical thin film coated with INH on top of the
This is achieved by an automobile lamp cover characterized in that the optical interference film is formed to reflect the same color as the body of the automobile.

In the present invention, the lamp cover is formed flush with the body surface of the automobile so that it looks integral with the body surface.

This lamp cover consists of a transparent substrate and an optical film. As the transparent substrate, in addition to electrically conductive glass, transparent resin such as polymethyl methacrylate or polycarbonate-1 can be used. As the glass, in addition to laminated glass, tempered glass, tempered glass, etc. can be used.

Further, the optical interference film is formed from a single layer or multilayer optical thin film.

In the present invention, the optical interference film C can be used in an appropriate combination of conventionally known optical thin films.

An optical thin film is a thin film formed on the surface of a substrate such as glass for the purpose of preventing reflection, increasing reflection, etc. on the substrate surface, and utilizes the interference effect of light. An optical thin film may be formed of only one layer, but it may also be formed as a so-called multilayer film in which high refractive index materials and low refractive index materials are alternately laminated. Examples of high refractive index materials include zirconium oxide (zro+), ffi titanium ilt
), etc., and low refractive index substances include silicon dioxide (SiO2), magnesila fluoride A (M g F 2
) etc. are used.

When the optical thin film is formed as a multilayer film, it is possible to prevent reflection.
As a result, the reflection increasing effect can be further enhanced. In addition, we can prevent reflection, expand the wavelength range of light that causes increased reflection,
The degree of freedom in selecting the material can be increased in relation to the refractive index of the material a forming the thin film.

In the present invention, for example, TiO□
It is possible to use a multilayer film consisting of a single layer of membrane and 5ill crotch.

In addition, each film thickness of the optical interference film is optical film thickness λ/4 (
λ: wavelength of the hue to be reflected).

Therefore, in order to obtain the same color as the car body, the thickness of each optical thin film may be determined so as to reflect light of that hue.

This optical interference film can be formed on the lamp cover by vacuum deposition methods such as empty deposition, ion blating, and sputtering, or by ceramic baking.

[Action of the invention]

Since the lamp cover of the present invention is constructed as described above, the same color as the rib body is reflected during the light interference by the optical interference film during the daytime, so that it appears the same color as the body.

Also, by lighting a lamp at night, it appears white, amber, red, etc.

〔Effect of the invention〕

Therefore, the present invention has the following effects.

(b) By adjusting the 191 yen of the optical interference film, it is possible to express red, orange, yellow, dark red, tan, purple, gray, halftones thereof, and even dark tones of these, If you make it the same color as the body, it will become one with the body and the lamp will have no presence.

(b) Therefore, styling and aerodynamic characteristics can be improved.

(c) Since the optical element b IK' absorbs little light, a sufficient amount of light can be ensured when the lamp is turned on.

(d) Since it is formed by a vacuum film forming method or the like, the optical interference film serves as a protective film, improving the durability of the lamp. This effect is particularly great when the lamp cover is molded from resin.

(B) Compared to conventional glue tractor pull lamps, lighting can be done quickly in an emergency.

(f) Because the structure is simple, there are fewer failures (and maintenance costs can be reduced).

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings (First Embodiment) The first embodiment is an example in which the present invention is applied to a headlamp of an automobile having a silherme click body color. show.

Here, FIG. 1 is a perspective view showing the vicinity of a part of a headlamp cover of an automobile, and FIG. 2 is a perspective view showing the vicinity of a part of a headlamp cover of an automobile, and FIG. II
FIG. 3 is a sectional view showing the 1-1 plane along the l1l-1it line in FIG. 2, and FIG. 4 is a graph showing the reflection spectrum of the headlamp according to the first embodiment of the present invention.

As shown in FIG. 1, the headlamp cover 1 was formed flush with the body 2 of the automobile. At this time, polymethyl methacrylate 1 was used as the transparent substrate 3. On the surface of this headlamp cover I, a titanium oxide (T i O+ ) film as the optical interference film 4 was formed by sputtering to a thickness of approximately 510 mm, as shown in FIG.

As a result, a 11I reflection with a gentle spectrum peaked at the 52On river, where human visibility is high. This reflected light became a sylherme-like color that matched the color of the body.

(Second Embodiment) A second embodiment shows an example in which the present invention is applied to a headlamp of an automobile having a solid yellow body color.

Here, FIG. 5 is a schematic configuration diagram showing an outline of a headlamp according to a second embodiment of the present invention, and FIG. 6 is a graph showing a reflection spectrum by the headlamp according to a second embodiment of the present invention.

As in the first embodiment, the headlamp cover was formed flush with the body of the automobile. At this time, polycarbonate was used as the transparent substrate. Since the paint color is solid rather than metallic, the surface of the F lamp cover was blasted to produce fine diffused reflections rather than mirror-like reflections. This results in a gloss level comparable to that of the body.

After cleaning this headlamp cover, optical thin films of titanium oxide and silicon dioxide were alternately laminated by sputtering as shown in FIG. 6. At this time, the film thickness of titanium oxide was 785 layers, and the thickness of silicon dioxide was 1205 layers.

The reflection spectrum of the headlamp cover obtained as a result was as shown in FIG. As is clear from FIG. 5, this reflection spectrum had a peak at a wavelength of 700 nm, and the reflected light became a seedling color.

Although specific embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and includes various embodiments and aspects within the scope of the claims. It is.

It should be noted that the present invention can be applied not only to a hesodron lamp case but also to a leet combination lamp case.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the vicinity of a part of the headlamp cover of a car, Fig. 2 is a sectional view taken along line ll-1 in Fig. 1, Fig. 3 is a sectional view taken along line u+-m in Fig. 2, and Fig. 4. 5 is a graph showing the reflection spectrum of the headlamp cover according to the first embodiment of the present invention, FIG. 5 is a schematic configuration diagram showing the outline of the navel F lamp cover according to the second embodiment of the present invention, and FIG. It is a graph which shows the reflection spectrum by the headlamp cover based on 2nd Example of this invention. 1-m-Helson lamp power bar 2--Body 3-11--Transparent substrate 4--1 Optical interference film 4a----Titanium monoxide film (optical thin film) 4b----
Silicon dioxide film (optical thin film) 4cm -- Titanium oxide film (optical thin film) Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 4 200 400 600 800 Week length (nm) Fig. 5 Fig. 6 200 400 600 800: A101m )

Claims (1)

[Claims] (1) The lamp cover is formed flush with the body surface of the vehicle so that the mark appears to be integral with the body surface of the vehicle. and an optical interference film made of optically thin IN.
This optical interference film is formed to reflect the same color as the color of the automobile.