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

Ian E. Ashdown

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Integral ambient light and occupancy sensor having a linear arra

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

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Near-field photometric method and apparatus

Optics: measuring and testing – Lamp beam direction or pattern
Patent

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Profile ID: LFUS-PAI-P-1516863

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