LIGHT GUIDE UNIT AND LIGHT SOURCE MODULE
First Claim
1. A light guide unit comprising:
- a first curved portion having a first optical surface, a second optical surface, and a light incident surface connecting the first optical surface and the second optical surface;
a planar portion having a first surface and a second surface opposite to the first surface, wherein the first optical surface is connected to the first surface, an absolute value of a slope of the first optical surface with respect to the first surface gradually increases near to the light incident surface, the second surface is connected to the second optical surface, and an absolute value of a slope of the second optical surface with respect to the second surface gradually increases near to the light incident surface; and
a second curved portion having a third surface and a third optical surface, wherein the planar portion connects the first curved portion and the second curved portion, the first surface connects the first optical surface and the third surface, the second surface connects the second optical surface and the third optical surface, and an absolute value of a slope of the third optical surface with respect to the second surface gradually increases away from the first surface.
1 Assignment
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Accused Products
Abstract
A light guide unit having a planar portion, a first curved portion, and a second curved portion are disclosed. The first curved portion has a first optical surface, a second optical surface, and a light incident surface connecting the first and the second optical surfaces. The planar portion has a first and a second surfaces, respectively, connected to the first and the second optical surfaces. Absolute values of slopes of the first and second optical surfaces with respect to the first and second surfaces gradually increase near to the light incident surface, respectively. The planar portion connects the first and the second curved portions having a third surface and a third optical surface, and the second surface connects the second and the third optical surfaces. An absolute value of a slope of the third optical surface with respect to the second surface gradually increases away from the first surface.
9 Citations
20 Claims
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1. A light guide unit comprising:
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a first curved portion having a first optical surface, a second optical surface, and a light incident surface connecting the first optical surface and the second optical surface; a planar portion having a first surface and a second surface opposite to the first surface, wherein the first optical surface is connected to the first surface, an absolute value of a slope of the first optical surface with respect to the first surface gradually increases near to the light incident surface, the second surface is connected to the second optical surface, and an absolute value of a slope of the second optical surface with respect to the second surface gradually increases near to the light incident surface; and a second curved portion having a third surface and a third optical surface, wherein the planar portion connects the first curved portion and the second curved portion, the first surface connects the first optical surface and the third surface, the second surface connects the second optical surface and the third optical surface, and an absolute value of a slope of the third optical surface with respect to the second surface gradually increases away from the first surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A light source module comprising:
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a plurality of light guide units arranged in an array, wherein the any two adjacent light guide units do not overlap with each other, and each of the light guide units comprises; a first curved portion having a first optical surface, a second optical surface, and a light incident surface connecting the first optical surface and the second optical surface; a planar portion having a first surface and a second surface opposite to the first surface, wherein the first optical surface is connected to the first surface, an absolute value of a slope of the first optical surface with respect to the first surface gradually increases near to the light incident surface, the second surface is connected to the second optical surface, and an absolute value of a slope of the second optical surface with respect to the second surface gradually increases near to the light incident surface; a second curved portion having a third surface and a third optical surface, wherein the planar portion connects the first curved portion and the second curved portion, the first surface connects the first optical surface and the third surface, the second surface connects the second optical surface and the third optical surface, and an absolute value of a slope of the third optical surface with respect to the second surface gradually increases away from the first surface; and a plurality of light sources, wherein each of the light sources is disposed adjacent to the light incident surface of a corresponding one of the light guide units, and a light beam provided by each of the light sources is capable of entering each of the light guide unit through the light incident surface thereof. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification