Invention Grant
- Patent Title: Multi-spectral super-pixel filters and methods of formation
- Patent Title (中): 多光谱超像素滤波器和形成方法
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Application No.: US12635318Application Date: 2009-12-10
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Publication No.: US08559113B2Publication Date: 2013-10-15
- Inventor: Justin G. A. Wehner
- Applicant: Justin G. A. Wehner
- Applicant Address: US MA Waltham
- Assignee: Raytheon Company
- Current Assignee: Raytheon Company
- Current Assignee Address: US MA Waltham
- Agency: Lando & Anastasi, LLP
- Main IPC: G02B5/28
- IPC: G02B5/28 ; G02B5/22

Abstract:
Multi-spectral filter elements and methods of formation are disclosed. Each multi-spectral filter element may include a plurality of sub-filters that are, in some embodiments, each adapted to respond to electromagnetic radiation within respective ones of a plurality of spectral bands. A method embodiment includes forming an optical cavity layer. Volume of the optical cavity layer can be reduced in at least N−1 number of spatial regions. The reducing may include a number of selective removal steps equal to the binary logarithm function Log2 N. In this example, each spatial region corresponds to a respective one of the plurality sub-filters. The plurality of sub-filters include at least N sub-filters. In particular embodiments, the respective ones of the plurality of spectral bands may be at least partially discrete with respect to each other.
Public/Granted literature
- US20110141569A1 Multi-Spectral Super-Pixel Filters and Methods of Formation Public/Granted day:2011-06-16
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