4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Pascal Royer

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Color matrix screen with colored filters in a triad or delta lay

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent

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Device for measuring current by optic fiber and dual polarizatio

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Optical fibres provided with a lens by photopolymerization...

Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1131854

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