Headlight module and headlight device
First Claim
Patent Images
1. A headlight module comprising:
- a light source for emitting light;
a condensing element for concentrating light emitted from the light source;
a light guide element having an incident surface for receiving light emitted from the condensing element and a reflecting surface for reflecting the received light; and
a projection optical element for projecting light reflected by the reflecting surface,wherein the incident surface has positive refractive power or negative refractive power,wherein a condensing function of the condensing element and the incident surface forms a shape of a first light distribution pattern,wherein the reflecting surface superposes light that enters through the incident surface and is reflected at the reflecting surface and light that enters through the incident surface and is not reflected at the reflecting surface on a plane passing through a focal point of the projection optical element and being perpendicular to an optical axis of the projection optical element, thereby forming a high luminous intensity region on the plane,wherein the high luminous intensity region is formed in a region of the first light distribution pattern, andwherein the projection optical element projects, as a second light distribution pattern, the first light distribution pattern formed on the plane.
1 Assignment
0 Petitions
Accused Products
Abstract
A headlight module includes a light source, a light guide element, and a projection optical element. The light source emits light. The light guide element has a reflecting surface for reflecting light emitted from the light source and an emitting surface for emitting light reflected by the reflecting surface. The projection optical element projects light emitted from the emitting surface. In a direction of an optical axis of the projection optical element, an end portion on the emitting surface side of the reflecting surface includes a point located at a focal position of the projection optical element.
-
Citations
19 Claims
-
1. A headlight module comprising:
-
a light source for emitting light; a condensing element for concentrating light emitted from the light source; a light guide element having an incident surface for receiving light emitted from the condensing element and a reflecting surface for reflecting the received light; and a projection optical element for projecting light reflected by the reflecting surface, wherein the incident surface has positive refractive power or negative refractive power, wherein a condensing function of the condensing element and the incident surface forms a shape of a first light distribution pattern, wherein the reflecting surface superposes light that enters through the incident surface and is reflected at the reflecting surface and light that enters through the incident surface and is not reflected at the reflecting surface on a plane passing through a focal point of the projection optical element and being perpendicular to an optical axis of the projection optical element, thereby forming a high luminous intensity region on the plane, wherein the high luminous intensity region is formed in a region of the first light distribution pattern, and wherein the projection optical element projects, as a second light distribution pattern, the first light distribution pattern formed on the plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A headlight module comprising:
-
a light source for emitting light; a light guide element having an incident surface for receiving light emitted from the light source and a reflecting surface for reflecting the received light; and a projection optical element for projecting light reflected by the reflecting surface, wherein the incident surface has positive refractive power, wherein the incident surface forms a shape of a first light distribution pattern by changing a divergence angle of light entering through the incident surface, wherein the reflecting surface superposes light that enters through the incident surface and is reflected at the reflecting surface and light that enters through the incident surface and is not reflected at the reflecting surface on a plane passing through a focal point of the projection optical element and being perpendicular to an optical axis of the projection optical element, thereby forming a high luminous intensity region on the plane, wherein the high luminous intensity region is formed in a region of the first light distribution pattern, and wherein the projection optical element projects, as a second light distribution pattern, the first light distribution pattern formed on the plane. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification