JPH017923Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a novel vehicular lamp. Specifically, in a lamp equipped with two light sources and capable of emitting light from the two light sources from a single irradiation surface, the light from each light source can be used effectively without wasting it. The aim is to provide a new vehicular lamp.

BACKGROUND TECHNOLOGY AND PROBLEMS By switching and lighting two light sources, a single irradiation surface can be used for two different purposes, and so-called pseudo lighting, that is, external light such as sunlight A phenomenon in which light enters a lamp, follows the light path from the light source in the opposite direction, and is then emitted outside, giving the impression that a non-lit lamp is lit. There is a vehicular lamp as shown in FIG. 1 as a lamp that can prevent this.

That is, in FIG. 1, a is the outer lens,
b is outer lens a inside outer lens a.
an inclined inner lens disposed at an angle of about 45° with respect to the inclined inner lens b;
Reflective surfaces d, d, . . . are formed on the side surface of the outer lens at appropriate intervals c, c, . . . in the vertical direction. Reference numeral e denotes a parabolic reflector disposed in the upper part so as to face the side surface of the outer lens of the inclined inner lens b, and a light bulb f is disposed approximately at the focal point of the parabolic reflector e. g is a parabolic reflector placed behind the lamp of the inclined inner lens b, and a light bulb h is placed approximately at its focal point. The optical axes of the parabolic reflecting mirrors e and g are substantially perpendicular to each other, and the optical axes are at an angle of 45 degrees with respect to the inclined inner lens b.

In the vehicle lamp shown in FIG. 1, the light emitted from the light bulb f enters the outer lens side of the inclined inner lens b, either directly or after being reflected by the parabolic reflector e. Then, the light is reflected by reflective surfaces d, d, . . . formed on the inclined inner lens b.
The light is reflected by the light and exits from the outer lens a. In addition, the light emitted from the light bulb h passes through the gaps c, c, ... of the inclined inner lens b directly or is reflected by the parabolic reflecting mirror g, reaches the inner surface of the outer lens a, and further The light passes through lens a and is emitted.

Therefore, in the vehicle lamp shown in FIG. 1, for example, the color of the inclined inner lens b and the parabolic reflector e
By changing the color given to the reflective surface of the outer lens a, different colors of light will be emitted from the outer lens a when the light bulb f is turned on and when the light bulb h is turned on. Also, even if outside light such as sunlight enters the lamp through the outer lens a,
Since its path is changed by the outer lens a and the inclined inner lens b, or it is obstructed by the reflective surfaces d, d, . . . , it does not cause false lighting.

However, in the vehicle lamp shown in FIG. In addition, the light emitted from the light bulb h passes through the gaps c, c, ... of the inclined inner lens b, and only the light that passes through the gaps c, c, ... from the outer lens a is emitted from the outer lens a. is emitted to
The light that reaches the reflective surfaces d, d, ... of the inclined inner lens b is obstructed by the reflective surfaces d, d, ... and is not emitted outside the lamp, resulting in extremely inefficient light. It was bad.

In addition, reflective surfaces d, d,
If the tilted inner lens is made into a half mirror without forming ..., the light that reaches the surface is divided into those that are reflected and those that are transmitted, so there is still a problem of poor efficiency. is not improved.

Furthermore, in the conventional lamp shown in Fig. 1,
Since the inclined inner lens b is arranged at an angle of 45 degrees, there is also the drawback that the depth of the lamp becomes too large.

Purpose of the invention Therefore, the present invention is a lamp that is equipped with two light sources and can emit light from the two light sources from a single irradiation surface, and uses the light from each light source effectively without wasting it. The purpose of the present invention is to provide a new vehicular lamp that can perform the following functions.

Summary of the invention In order to achieve the above object, the vehicle lamp of the present invention includes an outer lens, an inclined inner lens provided at an angle inside the outer lens, and an end edge of the inclined inner lens that is biased toward the rear of the lamp. a first light source arranged to face the outer lens side slope of the inclined inner lens on the side thereof;
It further includes a second light source disposed on the side opposite to the outer lens of the inclined inner lens, and
Two or more inclined surfaces having a larger protrusion amount on the side far from the light source are formed on the outer lens side slope of the inclined inner lens so as to further protrude from the surfaces and spaced apart in the direction of inclination, and the front surface of the inclined surfaces The light from the first light source is reflected on the front surface of the light source and emitted to the front of the lamp, and the light from the second light source is reflected on the back surface of the light source, which is adjacent to the side far from the first light source. It is characterized by forming double-sided reflective surfaces that reflect the light again at the front and emit it to the front of the lamp.

Embodiments Hereinafter, details of the vehicle lamp of the present invention will be explained according to illustrated embodiments.

Reference numeral 1 denotes a lamp body having an open front, and the front opening is covered with an outer lens 2.

3 is an inclined inner lens, which is attached to the rear end of the outer lens 2 with respect to the outer lens 2;
The arrangement is inclined by a predetermined angle of less than 45°. The front surface of the inclined inner lens 3, i.e.
A large number of inclined surfaces 4, 4, . . . extending in the horizontal direction are arranged on the surface facing the inner surface of the outer lens 2 at appropriate intervals in the vertical direction. Specifically, by forming a protrusion on the front surface of the inclined inner lens 3, the protrusion becomes larger as it approaches the outer lens 2, that is, as it goes downward in the illustrated embodiment, the front surface of the protrusion is inclined. It is considered to be a face. Then, double-sided reflective surfaces are formed on the inclined surfaces 4, 4, . . . by appropriate means such as aluminum vapor deposition.
5, 5, . . . are transparent portions formed between the inclined surfaces 4, 4, . . . by forming the inclined surfaces 4, 4, .

Two types of lens elements are formed on the back surface of the inclined inner lens 3, that is, the surface opposite to the outer lens. The first lens elements 6, 6, . . . substantially correspond to the inclined surfaces 4, 4, . 4, 4, . Then, the light incident on the back surface of the double-sided reflective surface formed on the front surface of the inclined surfaces 4, 4, ... is reflected by the surface, and the light is reflected on the double-sided reflective surface formed on the front surface of the inclined surface 4 located immediately below. The light enters the front surface of the surface, is reflected again from the surface and directed toward the outer lens 2, and then passes through the outer lens 2 and is irradiated toward the front of the lamp. Second lens elements 7, 7,...
corresponds to the transmitting parts 5, 5, ..., and most of the light incident on the lens elements 7, 7, ... passes through the transmitting parts 5, 5, ... to the outer lens 2.
The light enters the inner surface of the lamp, passes through the outer lens 2, and is emitted toward the front of the lamp.

Reference numeral 8 denotes a parabolic reflecting mirror disposed on the side opposite to the outer lens of the inclined inner lens 3, and 9 indicates a light bulb disposed approximately at the focal point of the parabolic reflecting mirror 8.

Reference numeral 10 denotes an inner lens disposed in the upper part in a bridging manner between the upper edge of the outer lens 2 and the upper edge of the inclined inner lens 3, and has appropriate lens elements formed therein. The inclined surfaces 4, 4, . . . are formed on the inclined inner lens 3.
are arranged so that when viewed from the direction of these inner lenses 10 and light bulbs 11, the gaps 5, 5, . . . between them cannot be overlooked. Therefore, the light emitted from the light bulb 11 passes through the inner lens 10, and all of the light enters the front surface of the double-sided reflective surface formed on the front surface of the inclined surfaces 4, 4, . . . and is reflected by the surface. The light is directed toward the outer lens 2, and is transmitted through the outer lens 2 to irradiate the front of the lamp.

In the vehicle lamp as described above, even if either the light bulb 9 or the light bulb 11 is turned on, all of the light is irradiated outside the lamp through the outer lens 2, and irradiation is performed without waste. By changing the colors of the inner lenses 3 and 10, the color of the irradiated light can be different when the light bulb 9 is turned on and when the light bulb 11 is turned on. The color of the irradiated light can be made different by not only changing the color of the inner lenses 3 and 10, but also by coloring the reflective surface of the parabolic reflector 8, providing a suitable filter, etc. It may be done by any suitable means. In addition, inner lens 10
Further, an appropriate reflecting mirror may be provided for the light bulb 11, or the parabolic reflecting mirror 8 may be omitted in some cases. Further, in the above embodiment, the inclined inner lens 3 is shown as being inclined so that the upper end edge is biased backward, but this may be reversed and the inclined inner lens 3 may be inclined so that the lower end edge is biased backward, Alternatively, it may be tilted in the horizontal direction, that is, the right edge or the left edge may be biased rearward.

Effects of the Invention As is clear from the above description, the vehicular lamp of the present invention includes an outer lens, an inclined inner lens provided at an angle inside the outer lens, and an inclined inner lens that is biased toward the rear of the lamp. a first light source arranged to face the outer lens side slope of the inclined inner lens on the side of the inclined edge; and a second light source further arranged on the side opposite to the outer lens of the inclined inner lens. , two or more inclined surfaces having a larger protruding amount on the side far from the first light source are formed on the outer lens side inclined surface of the inclined inner lens so as to further protrude from the surfaces and spaced apart in the inclined direction; The front side of the inclined surface has a side surface that reflects the light from the first light source on the front surface and emits it to the front of the lamp, and reflects the light from the second light source on the back surface, and also has a side surface farther from the first light source. It is characterized by forming double-sided reflective surfaces that reflect again on the front surface adjacent to the lamp and emit the light to the front of the lamp, so that more light from each light source can be directed toward the front of the lamp. It is possible to achieve the effect that the light from the can be used effectively without wasting it.

[Brief explanation of the drawing]

Fig. 1 is a schematic vertical side view showing an example of a conventional vehicle lamp, Fig. 2 is a longitudinal side view showing an example of implementation of the vehicle lamp of the present invention, and Fig. 3 is an enlarged view of a part of Fig. 2. FIG. Explanation of symbols, 2... Outer lens, 3... Inclined inner lens, 4... Inclined surface, 9... Light source,
11...Light source.

Claims (1)

[Scope of utility model registration request] an outer lens, an inclined inner lens provided inclined inside the outer lens, and an end edge of the inclined inner lens that is biased toward the rear of the lamp, which is arranged so as to face an outer lens side slope of the inclined inner lens. and a second light source disposed on the side opposite to the outer lens of the inclined inner lens, and two or more inclined surfaces having a large protrusion amount on the side far from the first light source are inclined. The inner lens is formed on the outer lens side slope of the inner lens to further project from the surface and spaced apart in the slope direction, and on the front surface of the slope, the light from the first light source is reflected on the front surface. Forming a double-sided reflective surface that emits light to the front of the lamp, reflects the light from the second light source on its back surface, and reflects it again on the front surface adjacent to the side far from the first light source to emit it to the front of the lamp. Vehicle lighting equipment characterized by: