4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controls its own optical systems

Nobuyuki Nagasawa

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Autofocus control apparatus and method applied to microscope

Optical: systems and elements – Compound lens system – Microscope
Patent

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Automatic focal point sensing device

Television – Camera – system and detail – Optics
Reexamination Certificate

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Automatic focal-point sensing apparatus sensing high and low mag

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent

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Dark box apparatus for fluoroscopy, fluoroscopy system, and...

Optics: measuring and testing – By shade or color – With color transmitting filter
Reexamination Certificate

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Dark box apparatus for fluoroscopy, fluoroscopy system, and...

Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1395525

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