发明名称 |
LUMINOUS FLUX SPLITTING APPARATUS, SPATIAL OPTICAL MODULATION UNIT, LIGHTING OPTICAL SYSTEM, EXPOSURE APPARATUS, AND DEVICE MANUFACTURING METHOD |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a luminous flux splitting apparatus capable of guiding luminous flux having a desired intensity distribution to a plurality of spatial optical modulators without depending upon an intensity distribution of incident luminous flux. <P>SOLUTION: The luminous flux splitting apparatus includes a spatial optical modulator (30) for splitting which includes a plurality of optical elements (30a) arrayed in a predetermined plane and individually controlled so as to split the incident luminous flux into two pieces of luminous flux and to guide first luminous flux along a first optical path and second luminous flux along a second optical path, and a driving section (30c) configured to drive the plurality of optical elements, and drives the driving section according to a control signal from a control section (CR). The spatial optical modulator for splitting is so controlled by the control section so that light passed through optical elements in a first group among the plurality of optical elements is guided along the first optical path and light passed through optical elements in a second group different from the first group among the plurality of optical elements is guided along the second optical path. <P>COPYRIGHT: (C)2011,JPO&INPIT |
申请公布号 |
JP2011114041(A) |
申请公布日期 |
2011.06.09 |
申请号 |
JP20090266889 |
申请日期 |
2009.11.25 |
申请人 |
NIKON CORP |
发明人 |
TANITSU OSAMU |
分类号 |
H01L21/027;G02B5/08;G02B19/00;G03F7/20 |
主分类号 |
H01L21/027 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|