发明公开
EP2959503A1 SYSTEMS FOR PROVIDING ILLUMINATION IN OPTICAL METROLOGY 有权
系统,用于光学检测提供照明

SYSTEMS FOR PROVIDING ILLUMINATION IN OPTICAL METROLOGY
摘要:
The disclosure is directed to systems for providing illumination to a measurement head for optical metrology. In some embodiments of the disclosure, illumination beams from a plurality of illumination sources are combined to deliver illumination at one or more selected wavelengths to the measurement head. In some embodiments of the disclosure, intensity and/or spatial coherence of illumination delivered to the measurement head is controlled. In some embodiments of the disclosure, illumination at one or more selected wavelengths is delivered from a broadband illumination source configured for providing illumination at a continuous range of wavelengths.
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