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infinity_microscope_basics [2019/04/18 23:34]
127.0.0.1 external edit
infinity_microscope_basics [2019/10/09 19:13] (current)
gary [Vignetting]
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 $L_{coll}$ is the distance between the back focal plane and limiting aperture when vignetting just starts to happen $L_{coll}$ is the distance between the back focal plane and limiting aperture when vignetting just starts to happen
  
-$⌀_{TL}$ is the clear aperture of the tube lens (or whatever other element will clip the rays) (30-32 mm for most of ASI's tube lenses)+$⌀_{TL}$ is the clear aperture of the tube lens (or whatever other element will clip the rays) (30-32 mm for most of ASI's tube lenses ​but a mere 23 mm for typical 25 mm emission filters)
  
 $⌀_{BFP}$ is the diameter of the objective back focal plane, given by $2 \times NA_{obj} \times F_{obj}$. $⌀_{BFP}$ is the diameter of the objective back focal plane, given by $2 \times NA_{obj} \times F_{obj}$.
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infinity_microscope_basics.txt · Last modified: 2019/10/09 19:13 by gary