4. Optical: systems and elements
  5. Projection screen
  6. Border, mask, shade, or curtain

Vincent Donohoe

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Adjustable-aspect video projection screen

Optical: systems and elements – Projection screen – Border – mask – shade – or curtain
Patent

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Optical aspect ratio control for video projection

Optics: image projectors – Reflector
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Profile ID: LFUS-PAI-P-48153

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