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Vehicle-signal-lighting-unit

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Vehicle signal lighting unit

Details

Inventors: Ito, Hiroyuki; Okamura, Takeaki;
Assignee: Stanley Electric Co., Ltd. (JP)
Primary Examiner: Husar; Stephen
Assistant Examiner: Ward; John Anthony
Attorney, Agent or Firm: Ostrolenk, Faber, Gerb & Soffen, LLP

A vehicle signal lighting unit includes a light source, a plain outer lens, and a composite reflecting mirror consisting of a unit reflecting surface which reflects light having desired light distribution characteristics from the light source. The light source emits no direct light in an illuminating direction of the vehicle signal lighting unit, and is positioned to allow incident light against said composite reflecting mirror from at least two directions, and to prevent direct observation of the light source itself through the outer lens. Each unit reflecting surface of said composite reflecting mirror includes reflecting surface which reflects light from the light source from said two directions. Since the light source is provided outside an effective luminescent surface, the light source cannot be observed directly from outside through the plain outer lens. The light source can be mounted on both ends of the lighting unit outside an effective luminescent surface. The outer lens side of the light source can be provided with a hood member for preventing observation of the light source itself.

DETAILED DESCRIPTION It is an object of the present invention to provide a vehicle signal lighting unit which allows uniform brightness on a luminescent surface by use of only light reflected on a composite reflecting mirror in which direct light from the light source is excluded when the vehicle signal lighting unit is turned on.
It is further object of the present invention to provide a vehicle signal lighting unit which prevents observers from directly viewing internal components such as a light source when the vehicle signal lighting unit is turned off and allows a simplified design, thereby improving aesthetics of similar vehicle signal lighting units.
The present invention, to attain said objects, provides a vehicle signal lighting unit comprising a light source, a plain outer lens, and a composite reflecting mirror including unit reflecting surfaces which reflect light having desired light distribution characteristics from said light source, in which the light source emits no direct light in the illuminating direction of the vehicle signal lighting unit and is positioned to allow incident light from at least two directions against said composite reflecting mirror and to prevent direct observation of the light source itself through the outer lens, and in which each unit reflecting surface of the composite reflecting mirror comprises reflecting surfaces to reflect light from the light source in said two directions.
The present invention also provides a vehicle signal lighting unit characterized in that the above-mentioned light source is provided outside an effective luminescent surface of the vehicle signal lighting unit.
Further, the present invention provides a vehicle signal lighting unit characterized in that the light source is provided on both ends of the vehicle signal lighting unit.
Moreover, the present invention provides a vehicle signal lighting unit equipped with a hood member on the outer lens side of said light source for preventing observation of the light source itself

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