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

Ernst A. Seiffarth

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Laser detection device

Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent

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Laser radiation warning sensor utilizing polarization

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

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Optical sensor device using a dielectric transparent spherical-s

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

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Profile ID: LFUS-PAI-P-380659

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