JPH01167904A - Light equipment - Google Patents

Abstract

PURPOSE:To prevent the misconception of the light owing to an external light and to regulate the hue of the permeating light by providing two sheets of light color lenses whose color consists of the complementary color to the standard light emitted from a light source by adding and composing the color each other, and a lens to which uncolored particles are mixed and combined, between the two lenses. CONSTITUTION:In front of a light source 2, light lenses 7, 8, and 9 are provided. To the light lens 7 and 9, necessary color elements are combined respectively, and their color is complementary to the standard light emitted from the light source 2. To the light lens 8, fine particles of the mean diameter 1-20mu level such as the titanium white are mixed and combined. By the presence of three sheets of light lenses, the external light is absorbed in the fine particles in the light lens 8, and attenuated during the permeation through the light lenses 7 and 9. Thereby, no illusion to see as if the lamp is lighted by an external light is made, and moreover, since the hue of light color can be determined by selecting the color element to add, the hue to the peripheral substances can be regulated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rear combination lamp for a vehicle and other lamps having a fixed light color.

(Prior Art) As a conventional lamp, there is a combination lamp as shown in FIGS. 3 and 4, for example. In the figure, 1 is a combination rung, 2 is a pulp (light source), 3 is a soget, 4 is a housing, and 5 is a lamp lens.The lamp lens 5 is colored by adding a pigment to a resin material in advance. Then, by coloring the lamp lens 5, when the light beam from the light source 2 passes through the lamp lens 5, it becomes a target lamp color (for example, red, orange, etc.) and is displayed to the outside.

(Problem to be Solved by the Invention) However, in such a conventional lamp (rear combination lamp), the lamp lens 5 receives not only the light from the internal bulb 2 but also the light from the outside, for example, sunlight. Since there was no means to prevent the sun's rays from passing through from the outside, if the sun's rays hit the lamp lens during the daytime, the pulp 2 would not be lit. Regardless, the lighting lens 5 becomes brighter, making it appear as if the bulb 2 is lit, which is a problem in that it is easy to misidentify, which is not desirable from a safety standpoint.

In addition, in the case of the conventional lighting equipment (rear combination rung) as mentioned above, the lens color is red, orange, etc. regardless of the car body color, so it cannot be harmonized with the car body color, and this can be a problem in car body design. It became.

(Means for Solving the Problems) The present invention has been made by focusing on such conventional problems, and it prevents misidentification of lamp lighting due to external light and prevents the hue from being out of harmony with the surroundings. The purpose is to eliminate design obstacles.

According to the present invention, in a lamp equipped with a lamp lens that colors visible light radiated from a light source, the lamp lens has two lenses that have a complementary color to the standard light from the light source through additive color synthesis. This is achieved by having a three-layer structure in which lenses in which achromatic particles are mixed and blended are placed between colored transparent lenses.

(Example) Hereinafter, the present invention will be explained based on the drawings. Note that in the following, parts similar to those in the prior art will be indicated by the same reference numerals, and redundant explanation will be omitted.

FIG. 1 is a diagram showing an embodiment of the present invention.

In the figure, numerals 7, 8 and 9 are lamp lenses, which are composed of three lenses. Achromatic particles are mixed and blended into this lamp lens 8. Examples of achromatic particles include non-light-transmitting particles such as titanium white, carbon black, glass powder, nepheline feldspar powder, highly polymerized polymethacrylate particles, cross-linked polymethacrylate particles, and cross-linked polystyrene particles, or average particles with light-diffusing properties. Inorganic/organic transparent substance powder/particles with a particle size of 1 to 20 μm are used. For example, titanium white is used when the car body color is bright and whitish, and carbon black is used when the car body color is dark and blackish. In addition, when the color of the car body is close to the primary color, cross-linked polymethacrylate fine particles can be used. In addition, the resin material of the lamp lens 8 is normally transparent, such as polymethyl methacrylate or styrene, which does not contain other pigments, but in order to more closely match the car body color, a predetermined standard color and Depending on the coloring of the lamp lenses 7 and 9, a pigment may also be added. Furthermore, in order to blend the above-mentioned particles into the lamp lens 8, conventional techniques such as adding a master pellet are used to achieve a light transmittance of approximately 30 to 85%, and when the bulb 2 is turned on, the desired lamp color is obtained. The sixth-order lamp lenses 7 and 9 are each blended with a pigment that is a complementary color to the standard light through additive color synthesis, and the lamp lens 9 has a color close to the car body color. For example, if the car body color is yellow, the lamp lens 9 is colored yellow with a coloring agent, and the lamp lens 7 is colored orange or reddish-purple, thereby changing the color of the bulb 2.
When the lamp is turned on, a predetermined orange or red can be obtained as the desired light color. Examples of specific color combinations are shown in Table 1.
During the experiment, the transmittance curve of 1 is shown in FIG.

(Function and effect) Using titanium white as achromatic particles, lamp lens 9
When the light lens 7 is yellow to match the car body color and the light lens 7 is reddish-purple, the light lens 9 looks whitish yellow overall. When sunlight momentarily hits this lighting lens 9, a part of the sunlight passes through the lighting lens 8 and is absorbed by the particles mixed in the lighting lens 8, and only the remaining attenuated sunlight rays become the lighting lens. The light passes through the lens 7, is further attenuated, and is reflected by the reflective surface 6 of the housing 4 toward the lamp lens 9, but the amount of light that is attenuated in the same way as the incident path and emitted to the outside is extremely small, and the amount of light that is emitted to the outside is extremely small. The lens 9 is maintained in a yellow state similar to the whitish color of the car body, and there is no fear that it will be mistaken for when the bulb 2 is lit. Furthermore, when the bulb 2 is lit, the light rays from the bulb 2 are attenuated slightly by the particles of the lamp lens 8, but the attenuation is extremely small compared to the case of sunlight, etc. Therefore, the entire lamp lens becomes brighter with the desired lamp color, red. In this case, the particles blended into the lamp lens 8 are extremely good without causing any color change to the achromatic color of the lamp, which is the desired color.

Further, when light-diffusing powder/particles are used as the intangible colored particles, similar effects can be achieved due to their light-diffusing effect.

As explained above, the present invention provides a lamp equipped with a lamp lens that colors visible light radiated from an almost colorless light source, in which the lamp lens is composed of two lenses that have a complementary color to the standard light through additive color synthesis. Because it is a three-layered lamp with lenses mixed and blended with achromatic particles between the colored and transparent lenses, the color of the outer lens can be selected to match the color of the main body to which the lamp is attached. This makes it easy to eliminate design obstacles, and since a lens containing achromatic particles is placed in the middle of the three-lens structure, it is possible to prevent misidentification of lamp lighting due to external light. This is effective in creating an unexpected effect in that the color appears different when the light is on and when the light is off.

In addition, when the above-mentioned configuration is adopted as a combination lamp for a vehicle, it has the above-mentioned effects, and the restrictions on the design of the car body color are greatly eased, and the combination lamp can be matched to the car body color. In this way, it is possible to prevent a situation in which the lamp lens becomes bright due to sunlight and cause the driver to misunderstand that the bulb is on, thereby improving safety when the vehicle is running or stopped.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a combination lamp showing an embodiment of the lighting device of the present invention, FIG. 2 is a transmittance curve diagram of actual MNo. 1, and FIG. 3 is a sectional view of a combination lamp as an example of a conventional lighting device. FIG. 4 is a sectional view of a conventional combination lamp taken along a vertical plane including the optical axis. Note that the following symbols in the figure indicate the following parts, respectively. 1: Combination lamp as a lighting device, 2: Bulb (light source), 3: Socket 4: Housing, 5.7.8, 9: Light lens, 6: Reflective surface. Below are the margins Figure 1 Figure 2 Wavelength (nm) Figure 3 Figure 4

Claims (1)

[Claims] (1) In a lamp equipped with a lamp lens that colors visible light radiated from a light source, the lamp lens is formed between two colored transparent lenses that form a complementary color to the standard light from the light source through additive color synthesis. A lamp characterized by having a three-layer structure with a lens in which achromatic particles are mixed and blended.