JPH029451Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new vehicular lamp, and in particular to a vehicular lamp in which a mark is attached to the lens surface, the mark is visible when the light source is not lit, but is not visible when the light source is lit. The present invention aims to provide a new vehicular lamp with improved visibility.

In vehicle lighting, especially automotive lighting,
As a recent trend, it is common to attach trademarks or symbol marks to the lens surface due to design requirements. Conventionally, in order to mark the lens surface in this way, a structure as shown in FIGS. 1 and 2 has been used. That is,
A recess b is formed in the front surface of the lens a where the mark is to be attached, and an opaque material c of a color such as black that creates a difference in brightness from the lens a is inserted into the recess b to mark the mark (see Figure 1). The area shown in the figure corresponds to the opaque material). still,
d is a lamp body whose front opening is covered by a lens a, and e is a light bulb for a light source placed in a space defined by the lens a and the lamp body d. In such conventional vehicle lights, when the light bulb e is not lit, the mark c is visible from the surrounding lens a part and the difference in brightness between them.
Although the intention of giving mark c is achieved, light bulb e
When the light bulb e is turned on, the light from the bulb e does not pass through the mark c part at all, so the mark c part becomes a dark area, and there is a part on the lens a surface that does not function as a visual lamp, which greatly reduces the visibility of the lamp. let Also, even though the part of mark c becomes a dark area, the brightness of the surrounding lens is extremely high, so the outline of mark c will blur, and therefore the shape will not be visible on the lens a side. This results in dark areas that are not visible, and the appearance itself becomes extremely poor.

Therefore, the present invention aims to eliminate the drawbacks of the conventional vehicle lights mentioned above and provide a new vehicle light in which the mark is visible only when not lit, and the entire surface of the lens becomes a luminous surface when lit. In a vehicle lamp in which the front opening of the lamp body is covered with a lens and the light source is placed within the space defined by the lamp body and the lens, the front opening of the lens has a transmittance of 30% compared to the lens transmittance. A semi-transparent layer having a transmittance of more than 100% is applied, and marks such as letters and symbols are exposed by the difference in brightness when the light source is not lit between the part to which the semi-transparent layer is applied and the part to which it is not. It is characterized by the following.

The details of the vehicle lamp of the present invention will be explained below with reference to the illustrated embodiments.

FIGS. 4 and 5 show an example of the vehicle lamp according to the present invention, in which the mark is formed of a semi-transparent layer. 1 is a lamp body whose front opening is covered by a lens 2;
A light bulb 3 for a light source is arranged in a space defined by the lamp body 1 and the lens 2.
A lens step is formed on the entire back surface of the lens 2 to obtain the desired light distribution required for a vehicle lamp. The light source bulb 3 is attached to the lamp body 1 via a socket 4 which is detachably attached to the lamp body 1.
Reference numeral 5 denotes a semi-transparent layer (shown in a satin-like appearance in the front view) applied to the surface of the lens 2 by painting, and the letters "ABC" are drawn by this layer.
This semi-transparent layer 5 may be of any material as long as it produces a difference in brightness from the color of the lens 2. Therefore, for example, if the color of the lens 2 is amber because it is used as a turn signal lamp, the color of the lens 2 is red or black, but if it is used as a stop lamp, the color of the lens 2 is amber.
If the color of the lens 2 is red, black is often selected, and if the lens 2 is white because it is used as a backlight, amber or red is often selected. Of course, the combination of colors is not limited to this, as long as the combination is such that a difference in brightness is created between the lens 2 and the semi-transparent layer.

The transmittance of the semi-transparent layer 5 needs to be 30% or more, taking the transmittance of the lens 2 as 100%. This means that if the transmittance of the part to which the semi-transparent layer 5 is applied (marked part) is 30% or more compared to the transmittance of the part to which the semi-transparent layer 5 is not applied, the light source used in the vehicle lamp is This is because the light bulb 3 is so powerful that when the light bulb 3 is turned on, the mark is sufficiently illuminated and cannot be distinguished from the rest of the mark by the human eye. If the transmittance of the mark part is 30% or less of the part other than the mark, no matter how powerful the light bulb 3 is, the mark part will remain as a dark part even when the human eye sees it when it is lit. This is because you will end up getting tired.

In addition, when the light bulb 3 is not lit, the mark part must be distinguishable by the human eye by the difference in brightness between the mark part and the part other than the mark, so the transmittance of the mark part is Naturally, there must be a certain degree of difference between the transmittance of the area other than the mark and the transmittance of the area other than the mark. Therefore, it goes without saying that it does not matter how high the transmittance of the mark part is 30% or more.

Therefore, in the vehicle lamp as described above, when the light bulb 3 is not lit, the mark made of the semi-transparent layer 5 is visible due to the difference in brightness between the mark and the lens 2, but when the light bulb 3 is lit, the mark made of the semi-transparent layer 5 is visible. Since the mark part has a transmittance of 30% or more compared to the transmittance of lens 2, the mark part is illuminated in the same way as the other parts, so that it is almost invisible to the naked eye, and therefore the visibility is low. The appearance will be extremely good and the appearance will also be improved.

Incidentally, in the above embodiment, the mark is formed on the semi-transparent layer 5.
Although the mark is drawn and expressed directly by the above method, it is also possible to express the mark indirectly, as shown in FIGS. 5 and 6. That is, a semi-transparent layer 5 (shown in a matte finish in the front view as described above) is applied to a certain section on the surface of the lens 2, and marks are removed from this layer to form a character shape, that is, the semi-transparent layer 5 is provided. It is to express the part that is not. As a result, when the light bulb 3 is not lit, the mark is visible due to the difference in brightness between the mark and the surrounding semi-transparent layer 5, and when the bulb 3 is lit, the part to which the semi-transparent layer 5 is applied is also visible to other parts. At the same time, it will be illuminated, so the mark will disappear.

In each of the above embodiments, the semi-transparent layer 5 is applied to the surface of the lens 2 by coating without any processing, but as shown in FIG.
According to a method, the semi-transparent layer 5 It is also possible to make the outline very clear. In addition, when forming a mark in the shape of a punched character as shown in FIGS. 5 and 6, the part that will become the mark is formed in the shape of a protrusion 8 as shown in FIG. The semi-transparent layer 5 may be formed to surround the.

Further, in each of the above embodiments, the semi-transparent layer 5 is formed by painting, but the method is not limited to painting. For example, a semi-transparent thin plate such as a so-called smoke lens is formed on the surface of the lens 2. It is also possible to give it to .

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show an example of a conventional vehicle lamp, Fig. 1 is a front view, and Fig. 2 is a - of Fig. 1.
3 and 4 show an example of the implementation of the vehicle lamp of the present invention, FIG. 3 is a front view, FIG. 4 is a sectional view taken along line - in FIG. 3, and FIG. 6 and 6 show another embodiment of the vehicle lamp of the present invention, FIG. 5 is a front view of the main parts, FIG. 6 is a sectional view taken along the line - in FIG. 5, and FIGS. 7 to 9 Each figure is a sectional view showing an example of deformation of the semi-transparent layer. Explanation of symbols: 1...Lamp body, 2...Lens, 3...Light source, 5...Semi-transparent layer.

Claims (1)

[Scope of utility model registration request] In a vehicle lamp in which the front opening of the lamp body is covered with a lens and the light source is placed within the space defined by the lamp body and lens, the front opening of the lens has a transmittance of 30% or more compared to the transmittance of the lens. A semi-transparent layer having a certain ratio is applied, and marks such as letters and symbols are made to appear based on the difference in brightness when the light source is not lit between the part to which the semi-transparent layer is applied and the part to which it is not. A vehicle lamp characterized by: