Light guide unit and light source module
First Claim
1. A light guide unit adapted to be disposed beside a light source, and the light guide unit comprising:
- a light guide plate, comprising a bottom surface, a light emitting surface, a light incident surface, a side surface, a first connecting surface, and a second connecting surface, wherein the bottom surface is opposite to the light emitting surface;
the light incident surface, the side surface, the first connecting surface, and the second connecting surface are respectively connected between the bottom surface and the light emitting surface; and
the light incident surface is disposed between the light source and the side surface; and
a plurality of optical structures, protruding on the side surface, the first connecting surface, and the second connecting surface, and the optical structures together forming a Fresnel lens structure.
2 Assignments
0 Petitions
Accused Products
Abstract
A light guide unit is adapted to be disposed beside a light source. The light guide unit includes a light guide plate and a plurality of optical structures. The light guide plate has a bottom surface, a light emitting surface, a light incident surface, a side surface, a first connecting surface, and a second connecting surface. The bottom surface is opposite to the light emitting surface. The light incident surface, the side surface, the first connecting surface, and the second connecting surface are respectively connected between the bottom surface and the light emitting surface. The light incident surface is disposed between the light source and the side surface. The optical structures protrude on the side surface, the first connecting surface, and the second connecting surface, and together form a Fresnel lens structure. A light source module is also provided.
3 Citations
24 Claims
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1. A light guide unit adapted to be disposed beside a light source, and the light guide unit comprising:
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a light guide plate, comprising a bottom surface, a light emitting surface, a light incident surface, a side surface, a first connecting surface, and a second connecting surface, wherein the bottom surface is opposite to the light emitting surface;
the light incident surface, the side surface, the first connecting surface, and the second connecting surface are respectively connected between the bottom surface and the light emitting surface; and
the light incident surface is disposed between the light source and the side surface; anda plurality of optical structures, protruding on the side surface, the first connecting surface, and the second connecting surface, and the optical structures together forming a Fresnel lens structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A light source module, comprising:
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a light source; and a light guide unit, comprising; a light guide plate, comprising a bottom surface, a light emitting surface, a light incident surface, a side surface, a first connecting surface, and a second connecting surface, wherein the bottom surface is opposite to the light emitting surface;
the light incident surface, the side surface, the first connecting surface, and the second connecting surface are respectively connected between the bottom surface and the light emitting surface; and
the light incident surface is disposed between the light source and the side surface; anda plurality of optical structures, protruding on the side surface, the first connecting surface, and the second connecting surface, and together forming a Fresnel lens structure, wherein the light source comprises a first light source group and a second light source group, and the Fresnel lens structure is adapted to transmitting a first light beam emitted by the first light source group in a first direction and transmitting a second light beam emitted by the second light source group in a second direction, wherein the second direction intersects the first direction. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification