Invention Grant
- Patent Title: Method and apparatus for optical filtering with two passbands
- Patent Title (中): 具有两个通带光滤波的方法和装置
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Application No.: US12554240Application Date: 2009-09-04
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Publication No.: US08294990B2Publication Date: 2012-10-23
- Inventor: Douglas J. Brown , Daniel B. Mitchell , Geoffrey G. Harris
- Applicant: Douglas J. Brown , Daniel B. Mitchell , Geoffrey G. Harris
- Applicant Address: CA Ottawa, Ontario
- Assignee: Raytheon Canada Limited
- Current Assignee: Raytheon Canada Limited
- Current Assignee Address: CA Ottawa, Ontario
- Agency: Lando & Anastasi, LLP
- Main IPC: G02B27/00
- IPC: G02B27/00 ; G02B5/28
Abstract:
An apparatus includes an optical filter having first and second passbands that are different, the optical filter including selectively operable first passband adjusting structure that varies a characteristic of the first passband without influencing the second passband. According to a different aspect, a method includes filtering radiation with an optical filter having first and second passbands that are different, and selectively varying a characteristic of the first passband without influencing the second passband.
Public/Granted literature
- US20110058256A1 Method and Apparatus for Optical Filtering with Two Passbands Public/Granted day:2011-03-10
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