4. Optics: image projectors
  5. Unitary plural refracting surfaces

Hisashi Iechika

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Illuminating optical system and projector

Optics: image projectors – Unitary plural refracting surfaces
Reexamination Certificate

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Illumination optical system and projector using the same

Optics: image projectors – Particular condenser
Reexamination Certificate

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Liquid crystal light valve and projection display device...

Optics: motion pictures – Methods – Recording
Reexamination Certificate

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Polarizing illumination device and projection display device

Illumination – With polarizer
Patent

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Prism structure and projector

Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1050749

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