发明名称 |
LED-based illumination modules with thin color converting layers |
摘要 |
An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module may include a reflective color converting element with a PTFE layer and a color converting layer fixed to the PTFE layer. The color converting layer includes phosphor particles embedded in a polymer matrix and has a thickness that is less than five times an average diameter of the phosphor particles. The illumination module may include a transmissive color converting element. The color converting elements may be produced by mixing a polymer binder with a solvent and phosphor particles to form a homogeneous suspension of the phosphor particles. The homogeneous suspension is applied to a surface to form an uncured color converting layer, which is heated to vaporize the solvent. The cured color converting layer includes the phosphor particles suspended in the polymer binder. |
申请公布号 |
US9033531(B2) |
申请公布日期 |
2015.05.19 |
申请号 |
US201313867840 |
申请日期 |
2013.04.22 |
申请人 |
Xicato, Inc. |
发明人 |
Ravilisetty Padmanabha Rao;Harbers Gerard |
分类号 |
F21V9/16;C09K11/08;C09K11/77;F21K99/00;F21V3/04;F21V5/04;F21V7/22;F21V13/04;C09K11/02;F21V13/08;F21V29/00;F21Y101/02;F21Y105/00;F21V13/12 |
主分类号 |
F21V9/16 |
代理机构 |
Silicon Valley Patent Group LLP |
代理人 |
Silicon Valley Patent Group LLP |
主权项 |
1. A method comprising:
mixing a polymer binder with a solvent and a plurality of phosphor particles to form a homogeneous suspension of the phosphor particles; applying the homogeneous suspension to a surface of a transparent substrate to form an uncured color converting layer; and heating the uncured color converting layer to vaporize the solvent to form a cured color converting layer, wherein the cured color converting layer includes the phosphor particles suspended in the polymer binder, and wherein a thickness of the cured color converting layer on the transparent substrate is less than five times an average diameter of the phosphor particles. |
地址 |
San Jose CA US |