| 发明名称 |
ILLUMINATION SYSTEM |
| 摘要 |
An illumination system defined a primary optical axis is provided. The illumination system comprises a light source, a first lens group, an integrator rod, and a second lens group successively located on the primary optical axis. The light source is configured to output a light. The first lens group is configured to reduce an aperture angle of the light to about 27 degrees. The integrator rod is configured to make the light uniformly. The second lens group is configured to amplify an illumination field of the light and reduce the aperture angle of the light to about 3 degrees. |
| 申请公布号 |
US2015131258(A1) |
申请公布日期 |
2015.05.14 |
| 申请号 |
US201414539018 |
申请日期 |
2014.11.12 |
| 申请人 |
Tsinghua University ;HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
ZHU JUN;PAN XUAN;JIN GUO-FAN;FAN SHOU-SHAN |
| 分类号 |
F21V5/04;F21V8/00 |
主分类号 |
F21V5/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An illumination system, defined a primary optical axis, comprising:
a light source, a first lens group, an integrator rod, and a second lens group located on the primary optical axis; wherein the light source configured to output a light with a divergent angle ranged from +10 degrees and −10 degrees; the first lens group is located on a light path of the light and configured to reduce an aperture angle of the light to about 27 degrees; the integrator rod is located on a side of the first lens group away from the light source and parallel to the primary optical axis; and the second lens group is located on a side of the integrator rod away from the first lens group, and the second lens group configured to amplify an illumination field of the light and reduce the aperture angle of the light to about 3 degrees. |
| 地址 |
Beijing CN |
