JPH04135109U - Vehicle lights - Google Patents

Abstract

(57) [Summary] [Purpose] By changing the reflectance of the reflective surface, the brightness of the area near the light source bulb and the brightness of the area distant from the light source bulb are made almost uniform, thereby creating a vehicle lamp with good visibility. The purpose is to provide. [Structure] Among the reflective surfaces, the reflectance of the reflective surface in the vicinity of the light source bulb is made low, and the reflectance of the reflective surface in the portion distant from the light source bulb is made high. As a result, the brightness of the lens can be kept low in the vicinity of the light source bulb, and the brightness of the part distant from the light source bulb can be increased. Therefore, the brightness is made uniform, and visibility is improved accordingly.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to vehicle lighting equipment such as rear combination lamps, and is particularly applicable to vehicle lighting equipment such as rear combination lamps. The brightness of the area near the light source bulb and the brightness of the area far from the light source bulb are almost uniform. This invention relates to a vehicle lamp that provides good visibility.

0002

[Conventional technology]

Conventional vehicle lights of this type generally include a housing and a front surface of the housing. A lens placed in the opening and a light chamber defined by the lens and housing. A light source bulb is placed inside the lens, and the light from the light source bulb is reflected to illuminate the lens. It is equipped with a reflective surface that emits the light in a predetermined direction. Turn on the light source bulb When the light is turned on, the light from the light source bulb is reflected on the reflective surface, and the reflection Light passes through the lens and is emitted in a predetermined direction.

0003

[Problem that the idea aims to solve]

However, in the conventional vehicle lamp described above, the reflectance of the reflective surface is uniform. others Therefore, the brightness of the lens is high in the vicinity of the light source bulb, and It is lower in the area away from the rub. In other words, there is a noticeable difference in the brightness of the lenses, There is a problem with visibility.

0004 The purpose of this invention is to improve the brightness of the area near the light source bulb and the brightness of the area far from the light source bulb. To provide a vehicular lamp with almost uniform luminance and good visibility.

[0005]

[Means to solve the problem]

This invention lowers the reflectance of the reflective surface near the light source bulb among the reflective surfaces, It is also characterized in that the reflectance of the reflective surface in the portion away from the light source bulb is increased.

[0006]

[Effect] With the above configuration, the present invention makes it possible to reduce the brightness of the lens in the vicinity of the light source bulb. It is possible to keep the brightness of the light source low, and to increase the brightness of the areas far away from the light source bulb. can be given. As a result, it is possible to equalize the brightness and improve visibility accordingly. It will be uploaded.

[0007]

【Example】

Two examples of the vehicle lamp according to the present invention will be explained below with reference to the attached drawings. Ru. 1 to 4 show an embodiment of a vehicle lamp according to the present invention.

[0008] In the figure, 1 is a housing whose front side is open. In front of this housing 1 A recess 10 is provided on the entire periphery of the surface opening. At the center of the rear of this housing 1 is a cylindrical A shaped boss portion 11 is integrally provided in a protruding manner. A mounting hole 13 is provided in the boss portion 11. installed in the axial direction. The rear inner surface 12 of the housing 1 has a paraboloid of revolution, for example. vinegar. In the figure, 2 is a lens. A suitable prism is engraved on the inner surface of this lens 2. Adhesive legs 20 are integrally protruded from the entire periphery of the inner surface. The adhesive leg 20 of this lens 2 The recess 10 of the housing 1 is bonded and sealed with an adhesive 21 such as hot melt. A room sealed by the lens 2 and housing 1, that is, a lamp room. 22. In the figure, 3 is a socket. This socket 3 is an insert provided on one end side. It consists of a section 30, a clamping collar 31 provided at the center, and an external section 32 provided at the other end. . A clamping claw 33 is provided at the tip of the insertion portion 30 of this socket 3. In addition, in the figure , 35 is a lead wire connected to a terminal (not shown) provided inside the socket 3. It is. In the figure, 4 is a light source bulb. Insert this light source bulb 4 into the socket 3. It is removably attached to the insertion hole (not shown) of the entry part 30, and the terminal ( (not shown) is connected to the terminal of the socket 3. The light source bulb 4 is attached to the socket 3, and the socket 3 is attached to the housing 1. At the same time, the light source bulb 4 is installed at a predetermined position in the light chamber 22. do.

[0009] In the figure, reference numeral 5 indicates a low reflection portion of the reflection surface of the vehicle lamp of the present invention. this low The reflecting part 5 is a part of the paraboloid of revolution 12 of the housing 1 near the light source bulb 4. A substantially petal-shaped convex portion 50 and a small circular convex portion 51 are integrally protruded from each other. Its convexity The surfaces of parts 50 and 51 are coated with a low reflectance reflective coating, such as white reflective coating (in spots). Shown. ) 52.

0010 In the figure, reference numeral 6 indicates a highly reflective portion of the reflective surface of the vehicle lamp of the present invention. this high The reflecting part 6 consists of a reflector separate from the housing 1, and has a central part, that is, a reflector. In the vicinity of the light source bulb 4, there is a through hole into which the convex parts 50 and 51 of the low reflection part 5 fit. 60 and 61 are provided corresponding to the projections 50 and 51. This highly reflective part 6, that is, the paraboloid of revolution 12 of the housing 1, the surface of the light source bulb 4 A reflective surface with a high reflectance, for example, a reflective surface 62 made of aluminum vapor deposition, is provided at a separate part. .

[0011] The high reflection part 6 is set on the paraboloid of revolution 12 of the housing 1, and the high reflection part 6 The convex parts 50 and 51 of the low reflection part 5 are fitted into the through holes 60 and 61 of the separate body. The high reflection part 6 and the housing 1 are integrated.

0012 The vehicular lamp of the present invention in this embodiment has the above-described configuration. 4, in the brightness of the lens 2, the part near the light source bulb 4, that is, The brightness at the center of the lens 2 can be kept low, and the center of the lens 2 can be kept at a distance from the light source bulb 4. In other words, the brightness of the peripheral portion of the lens 2 can be increased. As a result, The brightness (indicated by the solid line in Figure 4) is compared with the brightness by conventional vehicle lighting (indicated by the broken line in Figure 4). Shown. ) can be made uniform, and visibility is improved accordingly.

[0013] FIG. 5 is a sectional view showing another embodiment of the present invention. In the figure, the same reference numerals as in FIGS. 1 to 4 indicate the same parts. In this embodiment, the vehicle lamp of the present invention has a paraboloid of revolution 12 of the housing 1. A reflective surface 70 with high reflectance, for example, aluminum vapor deposition, is provided on the surface. Said c A mask is placed on the surface of the paraboloid of revolution 12 of the Uzing 1 near the light source bulb 4. Then, coat the surface with a low-reflectance reflective coating, such as a white reflective coating (spotted). Shown in ) 71. The vehicle lamp of the present invention in this embodiment includes a high reflection section 70 and a low reflection section 71. It is made in one piece and can achieve the same effect as the above-mentioned embodiment. I can do that.

[0014] FIG. 6 is a plan view of a reflective surface of a vehicle lamp showing another embodiment of the present invention. In this example, there is a low reflection part with low reflectance in the vicinity of the light source bulb 4 on the reflection surface. (Indicated by dots). A high reflection section 81 is provided. Note that the above-mentioned low reflection section 80 has a width and a length of the central one. The width and length gradually decrease toward the periphery. Ru. The vehicle lamp of the present invention in this embodiment has the same function as that of the above-mentioned embodiment. effect can be achieved.

[0015]

[Effect of the idea]

As is clear from the above, in the vehicle lamp of the present invention, the light source bulb is the reflective surface. Lower the reflectance of the reflective surface in the vicinity of the light source bulb, and reduce the reflectance of the reflective surface in the portion far from the light source bulb. Since the reflectance of the lens is increased, the brightness of the lens is It is possible to keep the brightness of the parts low, and increase the brightness of the parts far away from the light source bulb. can be raised. As a result, the brightness is equalized and visibility is improved accordingly. Ru.

[Brief explanation of drawings]

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

FIG. 2 is an exploded perspective view of a low reflection section on the housing side and a high reflection section on the reflector side.

FIG. 3 is a plan view of a reflective surface.

FIG. 4 is a graph showing the brightness distribution according to the present invention and the brightness distribution according to the conventional vehicle lamp, where the vertical axis represents the brightness and the horizontal axis represents the position of the center and peripheral parts of the lens.

FIG. 5 is a sectional view showing another embodiment of the present invention.

FIG. 6 is a plan view of a reflective surface of a vehicle lamp showing another embodiment of the present invention.

[Explanation of symbols]

1 Housing 12 Paraboloid of revolution 2 Lens 22 Light room 3 socket 4 valve 5 Low reflective part 6 Highly reflective part 70 High reflective part 71 Low reflection part 80 Low reflection part 81 Highly reflective part

Claims (1)

[Scope of utility model registration request] 1. A vehicular lamp comprising a light source bulb and a reflective surface that reflects light from the light source bulb in a predetermined direction, wherein the reflective surface has a reflectance of a portion near the light source bulb. 1. A vehicular lamp comprising: a low reflection part having a low reflectance; and a high reflection part having a high reflectance on a reflective surface at a portion remote from the light source bulb.