Imaging optics with wavelength dependent aperture stop
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United States of America Patent
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Jul 15, 2008
Grant Date -
Feb 15, 2007
app pub date -
Aug 12, 2005
filing date -
Aug 12, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An imaging system includes a wavelength dependent aperture stop, which transmits light with different ranges of wavelengths through apertures of different diameters. Thus, different colored light will have different F-stops, which can be selected based on the power transfer and image quality requirements for the different colored light. For example, a smaller F-stop may be used with a weaker light source to produce a higher throughput for a specific range of wavelengths. Accordingly, the optical system's design and optimization is wavelength and F-stop dependent.
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