4. Photography
  5. With exposure objective focusing means, focusing aid, or...
  6. Optical detail with photoelement system

Masaki Imaizumi

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Automatic focus detecting mechanism for endoscopes

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

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Compact vari-focal photographic lens system

Patent

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Compact zoom lens system

Optical: systems and elements – Lens – With variable magnification
Patent

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Eyepiece lens system

Optical: systems and elements – Lens – Eyepiece
Patent

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Finder optical system with low-hygroscopic organic material

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

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Profile ID: LFUS-PAI-P-294199

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