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Create Annular aperture for phase-contrast condenser?

  • 27 October 2021
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Hi there, 

I am designing a phase-contrast microscope and would like to include an annular, ring-shaped aperture in the condenser lens for a phase-contrast microscope. Please advise and thank you in advance! 

 

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Best answer by Mike.Jones 18 November 2023, 02:14

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Place a circular obscuration aperture on the stop surface.  Define the annular aperture by its minimum radius and maximum radius.

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