JPH0583903U - Headlight - Google Patents

Abstract

(57) [Abstract] [Purpose] In a headlight having a structure in which an opening is provided in a part of a reflector for a headlight and a position light bulb is projected from this opening to serve also as a position light, The problem that the radiated light when the position light bulb is turned on becomes diffused light and it is difficult to visually recognize from a distance is solved. [Structure] At least a part of a peripheral edge of an opening 2a provided in the reflecting mirror 2 is formed by simultaneous molding with the reflecting mirror 2,
By providing the headlight 1 with the sub-reflecting surface 5 having a substantially focal point on the position light bulb 4 so that the light from the position light bulb 4 is reflected in the substantially same direction as the irradiation direction of the headlight 1, A part of the light from the position light bulb 4 is reflected by the sub-reflecting surface 5 and emitted as parallel light in the irradiation direction, thereby improving visibility from a distance and solving the problem.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle headlight, and more particularly to a headlight configured to also serve as a position light.

[0002]

[Prior Art]

 FIG. 2 shows an example of the configuration of a conventional headlight 90 of this type. In the headlight 90, for example, a reflecting mirror 91 which is a paraboloid of revolution and a substantially focal point of the reflecting mirror are provided. The function as a headlight is constituted by a light bulb 92 having a filament disposed at a position, and an opening 91a is provided in a part of the reflecting mirror 91, and a position is provided from this opening 91a. The light bulb 93 for projection is projected, and when the light bulb 93 for position is turned on, the entire surface of the reflecting mirror 91 shines and the position function is exhibited.

[0003]

[Problems to be solved by the device]

 However, in the position function of the conventional headlamp 90 described above, the position where the position light bulb 93 is provided with respect to the reflecting mirror 91 does not have any optical meaning optically. The light emitted from the headlight 90 when the 93 is turned on becomes diffused light, which causes a problem that it is difficult to check from a long distance due to the trowel, and a solution to this problem becomes an issue. Was there.

[0004]

[Means for Solving the Problems]

 As a concrete means for solving the above-mentioned conventional problems, the present invention provides an opening in a part of a reflector for a headlight, and a position light bulb is projected from the opening to serve also as a position light. In the headlight configured as described above, at least a part of the peripheral edge of the opening is formed simultaneously with the reflecting mirror, and the light from the position light bulb is directed in substantially the same direction as the irradiation direction of the headlight. By providing a headlight, which is characterized in that the position light bulb that reflects light to the position is provided with a sub-reflecting surface having a substantially focal point, it is possible to view from a distant point, and the conventional problem is solved. It is a solution.

[0005]

【Example】

 Next, the present invention will be described in detail based on an embodiment shown in the drawings. Reference numeral 1 in FIG. 1 denotes a headlamp according to the present invention. The headlamp 1 includes a reflecting mirror 2 having a paraboloid of revolution, for example, and a filament at a position substantially at the focal point of the reflecting mirror 2. It is a conventional point that the headlamp function is constituted by the light bulbs 3 arranged and the reflecting mirror 2 is provided with an opening 2a, and the position light bulb 4 is projected from the opening 2a. Similar to the example.

However, in the present invention, in addition to that, a sub-reflecting surface 5 is provided on the periphery of the opening 2a, and the sub-reflecting surface 5 focuses on the substantially filament of the position light bulb 4, for example. It is formed of a paraboloid of revolution, and its irradiation direction is substantially the same as that of the reflecting mirror 2.

The sub-reflecting surface 5 will be described in more detail below. The sub-reflecting surface 5 is formed at the same time by additionally processing the molding die of the reflecting mirror 2 described above. Therefore, it is not necessary to provide it in a portion where, for example, an undercut occurs and the molding of the reflecting mirror 2 becomes impossible, and it may be a part of the peripheral edge of the opening 2a.

In forming the sub-reflecting surface 5, it is preferable that direct light from the light bulb 3 does not enter the sub-reflecting surface 5 and generate upward reflected light. However, when the sub-reflection surface 5 is provided on the lower half portion of the reflecting mirror 2, it is desirable to consider that the lower half portion of the sub-reflection surface 5 is omitted.

Next, the operation of the present invention having the above-described structure will be described. When the position light bulb 4 is turned on, a part of the light from the position light bulb 4 is reflected by the reflecting mirror 2 in the conventional manner. The diffused light is emitted as a diffused light to the outside of the headlight 1. However, since the sub-reflecting surface 5 is provided, a part of the light reflected by the sub-reflecting surface 5 is a parallel light. Then, the light is projected in the irradiation direction of the headlight 1, and the collimated light reaches a distant place.

[0010]

[Effect of the device]

 As described above, according to the present invention, by providing a sub-reflecting surface on the periphery of the opening for reflecting the light from the position light bulb in substantially the same direction as the irradiation direction of the headlight, Light is reflected as parallel light in the irradiation direction of the headlight, and an excellent effect can be obtained in improving the position function of reaching further away and improving visibility.

Further, since the sub-reflecting mirror and the reflecting mirror are formed at the same time, the sub-reflecting mirror can be formed without any additional step in the production process even when the sub-reflecting mirror is provided, and the performance can be improved. The improvement can be obtained without increasing the cost.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a headlight according to the present invention.

FIG. 2 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 1 ... Headlight 2 ... Reflector 2a ... Opening 3 ... Light bulb 4 ... Position light bulb 5 ... Sub-reflecting surface

Claims (1)

[Scope of utility model registration request] 1. A headlight having a structure in which an opening is provided in a part of a reflector for a headlight, and a position light bulb is projected from the opening to serve also as a position light. A sub-reflecting surface that is formed at the same time as the reflecting mirror in at least a part of the position and reflects the light from the position light bulb in substantially the same direction as the irradiation direction of the headlight and has a substantially focus on the position light bulb. A headlight that is provided with.