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Messages - Asr

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Optics / Re: GRIN lense acquisition
« on: August 16, 2016, 04:28:18 PM »
Most GRIN lenses are designed to collimate fiber optic. As such, they usually have parabolic (2nd order) refraction index profiles, which are ideal for that purpose but are iffy at focusing off-axis light.
GRINtech uses 4th order index of refraction profiles which are much better for imaging.

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