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

Yoshinori Narutaki

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Electro-optical distance meter

Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent

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Equipment for measuring a difference in elevation

Optics: measuring and testing – By polarized light examination – With light attenuation
Patent

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Position encoder using a laser scan beam

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

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Profile ID: LFUS-PAI-P-671004

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