Method for making optical diffuser
AssigneeHon Hai Precision Industry Co., Ltd.
InventorJau-Shuenn Wang
Life of this patent
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Abstract
A method for making an optical diffuser includes the following steps: providing a pressing plate and a substrate; coating a layer of PTFE film on the pressing plate; sandblasting and grinding the layer of PTFE film to form a number of uniformly distributed micro-concaves; coating a layer of acrylic resin onto the substrate; pressing the layer of PTFE film with the pressing plate onto the layer of acrylic resin to form a number of uniformly distributed raised micro-dots on the layer of acrylic resin; and separating the layer of acrylic resin from the layer of PTFE film to obtain an optical diffuser.
Claims7
A method for making an optical diffuser, comprising:
- providing a pressing plate and a substrate;
- coating a layer of PTFE film on the pressing plate;
- sandblasting and grinding the layer of PTFE film to form a plurality of uniformly distributed micro-concaves;
- coating a layer of acrylic resin on the substrate;
- pressing the layer of PTFE film with the pressing plate onto the layer of acrylic resin to form a plurality of uniformly distributed raised micro-dots on the layer of acrylic resin;
- and
- separating the layer of acrylic resin from the layer of PTFE film to obtain an optical diffuser.
Dependencies are inferred from the claim text.