4. Optics: measuring and testing
  5. Refraction testing

Jean-Pierre Gerardin

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Device for discriminating fluids having different refractive ind

Optics: measuring and testing – Refraction testing
Patent

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Light detector having a photodiode with bias control

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
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Process and device for optically measuring the distance and the

Optics: measuring and testing – Range or remote distance finding – With photodetection
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Profile ID: LFUS-PAI-P-112620

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