Correcting lens with hologram

Discussion in 'Camera Building, Repairs & Modification' started by Mustafa Umut Sarac, Oct 16, 2007.

  1. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    I researched and learned that a hologram only good for single color , other colors diffract and distort the image if we use it as a lens . But at telescope correcting , they are puting a hologram between eye and the ocular to correct the image. If hologram is good for single color , why this is not same for telescope correcting.

    Best ,

    Mustafa Umut Sarac
     
  2. 3Dfan

    3Dfan Member

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    The only thing of this nature that I've heard of is the use of computer designed systems using fourier analysis which act to attenuate a star without attenuating light in the immediate vicinity. This is for planetary detection and I suspect achromatic performance is less of a priority.