Intelligent head lamp assembly for vehicle
First Claim
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1. An intelligent head lamp assembly for a vehicle, comprising:
- a light source to irradiate light;
a reflector reflecting the light irradiated from the light source;
a beam pattern variable unit having at least a digital micro-mirror device (DMD) that selectively change direction of the light reflected by the reflector to a predetermined angle;
a projection lens optical system irradiating the light selectively reflected by the beam pattern variable unit onto a road surface; and
a prism installed between the reflector and the beam pattern variable unit to reflect the light reflected by the reflector to the at least a digital micro-mirror device;
wherein the prism includes;
a first prism surface that reflects the light reflected by the reflector to at least digital micro-mirror device;
a second prism surface that reflects again the light which is reflected by the first prism surface; and
a third prism surface that reflects again the light reflected by the second prism surface in a front direction of the vehicle such that the light is not incident to the projection lens optical system.
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Abstract
An intelligent head lamp assembly for a vehicle may include a light source to irradiate light, a reflector reflecting the light irradiated from the light source, a beam pattern variable unit having at least a digital micro-mirror device (DMD) that selectively change direction of the light reflected by the reflector to a predetermined angle, and a projection lens optical system irradiating the light selectively reflected by the beam pattern variable unit onto a road surface.
15 Citations
7 Claims
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1. An intelligent head lamp assembly for a vehicle, comprising:
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a light source to irradiate light; a reflector reflecting the light irradiated from the light source; a beam pattern variable unit having at least a digital micro-mirror device (DMD) that selectively change direction of the light reflected by the reflector to a predetermined angle; a projection lens optical system irradiating the light selectively reflected by the beam pattern variable unit onto a road surface; and a prism installed between the reflector and the beam pattern variable unit to reflect the light reflected by the reflector to the at least a digital micro-mirror device; wherein the prism includes; a first prism surface that reflects the light reflected by the reflector to at least digital micro-mirror device; a second prism surface that reflects again the light which is reflected by the first prism surface; and a third prism surface that reflects again the light reflected by the second prism surface in a front direction of the vehicle such that the light is not incident to the projection lens optical system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification