4. Optical: systems and elements
  5. Projection screen
  6. Rear projection screen

Ta-Kun Kung

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Light tunnel with gradient filter layer

Optics: image projectors – Color filter
Reexamination Certificate

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Projection system

Optics: image projectors – Reflector – Plural
Reexamination Certificate

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Rear projection screen and optical device thereof

Optical: systems and elements – Projection screen – Rear projection screen
Reexamination Certificate

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Rear projection screen and optical device thereof

Optical: systems and elements – Projection screen – Rear projection screen
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2364023

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