High brightness diffuser
First Claim
1. A high brightness diffuser, comprising:
- a convex light diffusing piece with ridge-shape structure arranged on a surface thereof, being consisted of a plurality of large convex ridges and a plurality of small convex ridges, wherein, each of the convex ridges has a ridgeline, and the large ridge and small ridge are interlace-arranged, and the plural ridges along with the associated ridgelines are extending toward a same direction;
a concave light diffusing piece with ridge-shape structure arranged on a surface thereof, being consisted of a plurality of concave ridges associated with a ridgeline existing in between two adjacent ridges, wherein the plural ridges along with the associated ridgelines are extending toward a same direction; and
wherein, the two light diffusing pieces are stacked up by plastering the surface with ridge-shape structure of the convex light diffusing piece on the surface without ridge-shape structure of the concave light diffusing piece, and enabling an included angle to be formed between the two ridge-extending directions of the two light diffusing pieces.
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Accused Products
Abstract
The present invention is to provide a solution for fabricating a light diffusing sheet-like device capable of emitting light with superior brightness, that is a high brightness diffuser. The high brightness diffuser mainly comprises at least two light diffusing pieces with ridge-shape structure arranged thereon, which can be either convex or concave. The convex ridge-shape structure is consisted of a plurality of large convex ridges and a plurality of small convex ridges, which are associated with a ridgeline existing in between two adjacent ridges where the large ridge and small ridge are interlace-arranged, and the ridges along with the associated ridgelines can be longitudinally extended to the same direction. Likewise, The concave ridge-shape structure is constituted the same way as the convex ridge-shape structure is, but is consisted of concave ridges. The high brightness diffuser is fabricated by stacking up the two light diffusing pieces and enabling an included angle to be formed between the two ridge-extending directions of the two light diffusing pieces. Through the embodiment of the present invention, a high brightness diffuser with reduced thickness capable of emitting light of superior brightness and of wide-angle uniformity can be fabricated, and thus can be applied in a rear projection module.
16 Citations
13 Claims
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1. A high brightness diffuser, comprising:
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a convex light diffusing piece with ridge-shape structure arranged on a surface thereof, being consisted of a plurality of large convex ridges and a plurality of small convex ridges, wherein, each of the convex ridges has a ridgeline, and the large ridge and small ridge are interlace-arranged, and the plural ridges along with the associated ridgelines are extending toward a same direction;
a concave light diffusing piece with ridge-shape structure arranged on a surface thereof, being consisted of a plurality of concave ridges associated with a ridgeline existing in between two adjacent ridges, wherein the plural ridges along with the associated ridgelines are extending toward a same direction; and
wherein, the two light diffusing pieces are stacked up by plastering the surface with ridge-shape structure of the convex light diffusing piece on the surface without ridge-shape structure of the concave light diffusing piece, and enabling an included angle to be formed between the two ridge-extending directions of the two light diffusing pieces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 13)
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8. A high brightness diffuser, comprising:
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two convex light diffusing piece with ridge-shape structure arranged on a surface thereof, being consisted of a plurality of large convex ridges and a plurality of small convex ridges, wherein, each of the convex ridges has a ridgeline, and the large ridge and small ridge are interlace-arranged, and the plural ridges along with the associated ridgelines are extending toward a same direction;
wherein, the two convex light diffusing pieces are stacked up by plastering the surface with ridge-shape structure of the convex light diffusing piece on the surface without ridge-shape structure of the other convex light diffusing piece, and enabling an included angle to be formed between the two ridge-extending directions of the two convex light diffusing pieces. - View Dependent Claims (9, 10, 11, 12)
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Specification