Ichikoh Industries, Ltd.

Harada Industry Co., Ltd.

Kotoka Inoue

Yasuhiro Okubo

Toshiya Abe

Katsuhiro Murahashi

Hiroto Tokunaga

Noriyuki Mukai

In vehicle headlamps of the prior art, a low-beam light distribution pattern and a high-beam distribution pattern could not be obtained in a direct illumination lens-type lamp unit. The present invention is provided with a semiconductor light source, a lens, a light control member, and a drive member. The lens is composed of a main lens section and an auxiliary lens section. The drive member positions the light control member in a first position and a second position in a moveable and switchable manner. Consequently, the present invention enables a low-beam light distribution pattern and a high-beam light distribution pattern to be obtained in a direct illumination lens-type lamp unit.

Vehicle headlamp

A vehicle headlamp is provided with a semiconductor light source and a lens. The light emission center of the semiconductor light source is arranged at a reference focal point of the lens, or in the proximity thereof. The incident surface of the lens is configured such that upper parts and the lower parts above and below the reference focal point form pairs. Light distribution patterns formed by the upper parts are shifted upwards relative to light distribution patterns formed by the lower parts. As a result, the vehicle headlamp is capable of suppressing occurrence of color bands due to lens spectral phenomena.

The present invention provides a semiconductor-type light source, a reflector, and a lens. The semiconductor-type light sourcehas a light emission surface. The reflectorhas a first reflection surfaceand a second reflection surface. The lenshas a plurality of convex surfaces (emission surfacesand), a first lens portion, and a second lens portion. As a result, according to the present invention, an appropriate light distribution pattern for low beam LP can be obtained in a lamp unit.

A conventional vehicle lighting device has entailed a problem on swaging and fixing a power-feeding portion and a connector to each other insofar. In the present invention, a connector is made up of: a male terminal set at a power-feeding electrically conductive paste on one face of a power-feeding film of a power-feeding portion; a grommeted terminal board (primary swaging tool) on which the terminal and the power-feeding portion have been swaged; and a resin board (secondary swaging tool) on which the male terminal, the power-feeding portion, and the grommeted terminal board have been swaged. As a result, in the present invention, a swaging fixing strength between the power-feeding portion and the connector can be improved by means of the primary swaging fixing of the grommeted terminal board and the secondary swaging fixing of the resin board.

Vehicle lighting device

A conventional vehicle lighting device entails a problem on appearance. A vehicle lighting device of the present invention is provided with a wire heater, an extension portion, and a power-feeding portion. An adhesive part is provided at a part of one face of an extension film of the extension portion. Of such one face of the extension film of the extension portion, a letterpress printed-film pattern of a rough portion is provided in a range excluding the adhesive part. As a result, the vehicle lighting device of the present invention provides an ability to reliably prevent an extension film of the extension portion from sticking to a lamp lens by means of the letterpress printed-film pattern of the rough portion; prevent an appearance failure or abnormality exerted by the sticking of the extension film of the extension portion to the lamp lens; and improve its appearance.

Growing community of inventors

Isehara, Japan

Kotoka Inoue