JPH07122101A - Headlights that also serve as side lights - Google Patents

Abstract

(57) [Abstract] [Purpose] The area of the reflecting mirror becomes narrower in the conventional structure of this type of vehicle width light and headlight, particularly in the one formed by focusing on the light distribution of the passing beam. Providing a light source for a sideways light there causes problems such as darkening. According to the present invention, the vehicle width light source 5 is provided at a position of the reflecting mirror 3 which is outside the effective range D of the lens 4, and is outside the effective range D of the lens 4 substantially facing the vehicle width light source 5. At the position of the headlight 1 which is also used as a sidelight, a return reflector 6 for returning light from the light source 5 for a sidelight to a position within the effective range of the reflector 4 is provided. The light from the light source 5 for a sideways light provided outside the effective range of 4 is brought into contact with the reflecting mirror 4 by the returning reflecting mirror 6 similarly provided outside the effective range of the lens 4, and The problem is solved by eliminating the area loss.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp such as a headlight, and more particularly to a vehicular lamp that also has a light source for a sidelight of a vehicle. This relates to the configuration of the lamp.

[0002]

2. Description of the Related Art FIG. 4 shows an example of the structure of a conventional headlight 90 that also serves as a sidelight, and this headlight 90 also serves as a headlight light source 91. A parabolic reflector 92 having a headlamp light source 91 as a focal point, and the reflector 92.
A lens 93 having an effective range D defined so that almost all of the light from the headlight light source 91 that is reflected by the lens 93 and an appropriate position of the reflecting mirror 92 are projected, for example, below the headlight light source 91. And a light source 94 for a sideways light provided so as to do so.

With the above construction, the headlight 90 also serving as the sidelight of the vehicle, when the light source 94 for the sidelight of the vehicle is turned on, is reflected by the direct light from the light source lamp 94 for the sidelight and the reflecting mirror 92. The reflected light produces irradiation light that passes through the lens 93, and thereby functions as a side light.

In the headlight light source 91, a traveling beam filament 91a provided at a position substantially coincident with the focal point of the reflecting mirror 92, and a traveling beam filament 91a arranged in front of the focal point and under a hood 91c. There is a passing beam filament 91b whose half is covered, and when the traveling beam filament 91a is turned on, reflection is performed on the entire surface of the reflecting mirror 92, and when the passing beam filament 91b is turned on, the reflecting mirror is reflected. The reflection is performed only in the substantially upper half of 92.

[0005]

In recent years, headlights have been driven by a passing beam in almost all states due to an increase in traffic volume, and in recent years automobiles where it is desired that the hood be lower In recent years, the structure of the headlight has been designed mainly for the passing beam because of design requirements.

That is, in the recent headlamp 80, as shown in FIG.
As shown in FIG. 5, the reflecting mirror 82 is formed mainly by the upper half portion necessary for forming the light distribution characteristic of the low beam, and most of the lower half portion necessary for forming the light distribution characteristic of the traveling beam is formed. Since it is omitted, the lower half of the lens 83 is also omitted at the corresponding position, and the height is lowered to correspond to the recent automobile design.

However, when the headlight 80 having the above-described structure is mounted with the vehicle width light source 84 in order to have the function of the vehicle width light, most of the lower half of the reflecting mirror 82 is omitted. Therefore, the upper half, that is, the headlight light source 8
However, there is a problem that the reflection area is further reduced with respect to the diffracted beam, which originally has a small area and tends to be dark, and thus becomes even darker.

Further, in the above-mentioned passing beam,
Since the light distribution characteristic is formed by the shape of the reflected light reflected by the reflecting mirror 82 of the light from the low beam filament (see FIG. 4), the light source 84 for a sideways light is provided at a corresponding portion of the reflecting mirror 82. When it is provided, there is a problem that it also affects the shape of the light distribution characteristic, and it has been a problem to solve these problems.

[0009]

As a concrete means for solving the above-mentioned conventional problems, the present invention provides a light source for a sideways light from a part of a reflecting mirror provided for a headlight. A headlight for a sidelight that also functions as a sidelight by making use of the reflector and the lens for the headlight by turning on the light source for the sidelight, The light source is provided at the position of the reflecting mirror that is outside the effective range of the lens, and the light from the side light source is provided at a position outside the effective range of the lens that substantially opposes the sideways light source. The present invention is to solve the problem by providing a headlight that also serves as a sidelight, characterized in that a return reflector for returning to a position within the effective range of the lens of the reflector is provided.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail based on an embodiment shown in the drawings. Reference numeral 1 in FIG. 1 is a headlight that also serves as a sidelight according to the present invention.
As described in the conventional example, the passing beam is prioritized in terms of the function as a headlight, so that the lower part of the lower half of the reflector 3 is omitted from the headlight light source 2. At the same time, the lens 4 is also omitted in the vertical width at the portion corresponding to the omission of the reflecting mirror 3.

Here, the vehicle width light headlight 1 is provided with a vehicle width light source 5 so that it can also function as a vehicle width light. Light source 5
Is an extension of the reflecting mirror 3 to a portion where the omission is once performed, that is, a downward extension from the headlamp light source 2 to provide a sideways light source mounting portion 3a. The light source 5 for a sideways light is attached to the portion 3a.

Therefore, the light source 5 for the sideways light is provided at a position outside the effective range D of the lens 4 and does not function as a sideways light when it is turned on. Then, in addition to the above-mentioned structure, the return reflecting mirror 6 is provided in front of the light source 5 for the sideways light.

At this time, the return reflecting mirror 6 is located outside the effective range D of the lens 4 and the light source 5 for the sideways light.
Is provided as a position facing the
The direction in which the reflected light is generated is the position of the reflecting mirror 3 within the effective range D of the lens 4, and the reflecting mirror 3 is substantially provided above the headlight light source 2. ,
The position where the reflected light from the return reflecting mirror 6 reaches is also above the headlight light source 2 of the reflecting mirror 3.

Here, the light source mounting portion 3a for the sideways light and the return reflecting mirror 6 will be described in more detail. The light source mounting portion 3a for the sideways light is outside the effective range D of the lens 4. The headlamp light source 2
When is turned on, the reflected light does not occur within the effective range D of the lens 4, and therefore, does not adversely affect the light distribution characteristics as a headlight such as the low beam distribution.

This means that the shape of the side light source mounting portion 3a can be freely set.
Therefore, the vehicle width light source mounting portion 3a can also be formed as, for example, a paraboloid of revolution with the vehicle width light source 5 at the focal point, and the light from the vehicle width light source 5 is parallelized. A means such as directing the light beam to the return reflecting mirror 6 is freely available.

Further, regarding the return reflecting mirror 6, for example, an extension 7 provided in a cylindrical shape at the inner peripheral edge of the lens 4 for the purpose of preventing unnecessary see-through in the interior of the lamp and for the purpose of decorative effect. Light source mounting portion 3a for the sideways light
It is only necessary to provide it on the back surface corresponding to the above, and by doing so, the return reflecting mirror 6 is not directly viewed even when the headlight 1 that also serves as a sidelight is viewed from the front. Becomes

Next, the operation and effect of the headlight 1 which also serves as a sidelight of the present invention having the above structure will be described. First, when only the light source 5 for sideways lights is turned on, the light from the light source 5 for sideways lights is, for example, a light source mounting portion for sideways lights of a paraboloid of revolution having the light source 5 for sideways lights as a focal point. The light is reflected by 3a, reaches the return reflecting mirror 6 as parallel rays, is reflected, and reaches the reflecting mirror 3.

At this time, by appropriately setting the position and the inclination of the return reflecting mirror 6 provided from the side light source 5, the reflected light from the returning reflecting mirror 6 is reflected by the reflecting mirror 3. It can be set so as to come into contact with a free position at a free angle, so that the light from the light source 5 for sideways light can be emitted from the effective range D of the lens 4 in the irradiation direction as irradiation light. Therefore, it will function as a side light.

When the headlight light source 2 is turned on, the light from the headlight light source 2 is reflected by the reflecting mirror 3 and is emitted through the lens 4 as a traveling beam distribution or a passing beam distribution. The point of irradiating the direction is as described in the conventional example. Therefore, the sidelight and headlight 1 of the present invention does not impair the area of the reflecting mirror 3 and does not affect the light distribution characteristics. The function of a side light will be provided without giving.

FIG. 2 shows another embodiment of the present invention. In the previous embodiment, the extension 7 was used to form the return reflecting mirror 6 integrally with the extension 7. In this embodiment, a boss 4a is provided below the effective range D of the lens 4 and a return reflecting mirror 8 made of, for example, a metal member is attached to the boss 4a by screwing or the like.

FIG. 3 shows a further embodiment of the present invention, in which the lower portion outside the effective range D of the lens 4 is formed into an appropriate shape to serve as a return reflection portion 4b. For example, aluminum is vacuum-deposited or aluminum foil is attached to the return reflection portion 4b to form a reflection film 4c, which is integrated with the lens 4 to form the return reflection mirror 9.

[0022]

As described above, according to the present invention, the light source for the sideways light is provided at the position of the reflecting mirror outside the effective range of the lens, and the effective range of the lens substantially facing the light source for the sideways light is provided. The effective range of the lens is the outer side headlight that also has a return reflector that returns the light from the light source for the sideways light to a position within the effective range of the reflector. The light from the outside light source for the sideways light is made to contact the reflector by the return reflector which is also provided outside the effective range of the lens, and the light distribution characteristics and brightness of the headlight are determined. The reflector that does not need to be modified to add the function of a sideways light does not cause a decrease in illuminance or a change in the shape of the light distribution characteristics. It is extremely effective in improving the performance of.

Further, since the light source for the sideways light and the reflecting mirror for return are provided outside the effective range of the lens, the shape of the reflector for returning and the mounting portion where the light source for the sidelight is provided is free. The degree is given, and the function as a side light can be improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a side-light and headlight according to the present invention.

FIG. 2 is a sectional view showing a main part of another embodiment of a headlight that also serves as a sidelight according to the present invention.

FIG. 3 is a sectional view showing a main part of still another embodiment of a headlight also serving as a sidelight according to the present invention.

FIG. 4 is a cross-sectional view showing a conventional example.

FIG. 5 is a cross-sectional view showing another conventional example.

[Explanation of symbols]

 1 ... Headlight that also serves as a sidelight 2 ... Headlight light source 3 ... Reflector 3a ... Sideways light source mount 4 ... Lens 4a ... Boss 4b ... Return reflector 4c ... … Reflective film 5 …… Sidelighting light source 6,8,9 …… Returning reflector 7 …… Extension D …… Lens effective range

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Claims (2)

[Claims] 1. A light source for a sidelight is projected from a part of a reflector provided for a headlight into a lamp chamber, and the light source for a sidelight is turned on to turn on the light source for the reflector and the headlight. In a headlight that also functions as a sidelight using a lens, the light source for the sidelight is provided at a position of the reflecting mirror that is outside the effective range of the lens, and At a position outside the effective range of the lens, which is substantially opposite to the light source for a lamp, there is provided a return reflecting mirror that returns light from the light source for a sideways light to a position within the effective range of the lens of the reflecting mirror. A headlight that is also used as a car side light. 2. The position where the light source for the sideways light is provided is lower than the light source for the headlight, and the position of the reflecting mirror that is returned by the returning reflecting mirror is higher than that for the headlight light source. The headlight that also serves as a sidelight according to claim 1, characterized in that it is also above.