Projection screen with movable shutter
First Claim
Patent Images
1. A projection screen with a movable shutter, the projection screen comprising;
- a flat reflective screen;
a translatable shutter; and
a shutter translating and opening component that moves a center of the translatable shutter to a specified position on the surface of the flat reflective screen and opens the translatable shutter for a specified time interval.
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0 Petitions
Accused Products
Abstract
A projection screen for displaying projected images with a movable shutter that can be positioned and opened at any location within a large rectangular area of the surface of the projection screen. Physical objects and light signals may pass through the open shutter. When the shutter is closed, the projection screen appears to a viewer as a continuous, unbroken, vertical reflective surface.
6 Citations
10 Claims
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1. A projection screen with a movable shutter, the projection screen comprising;
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a flat reflective screen;
a translatable shutter; and
a shutter translating and opening component that moves a center of the translatable shutter to a specified position on the surface of the flat reflective screen and opens the translatable shutter for a specified time interval.
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2. A projection screen that reflects images and provides for a movable shutter opening comprising:
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a main frame;
a first internal frame slidably mounted within the main frame that moves horizontally within the main frame under control of an electrical servomotor;
a second internal frame slidably mounted within the first internal frame that moves vertically within the first internal frame under control of an electrical servomotor;
a left-hand flexible reflective screen dynamically mounted between the left-hand side of the main frame and the left-hand side of the first internal frame and a right-hand flexible reflective screen dynamically mounted between the right-hand side of the main frame and the right-hand side of the first internal frame; and
an upper flexible reflective screen dynamically mounted between the top of the first internal frame and the top of the second internal frame and a lower flexible reflective screen dynamically mounted between the bottom of the first internal frame and the bottom of the second internal frame;
a face plate mounted to the second internal frame, the face plate having a first aperture; and
a vertical flexible reflective screen with a second aperture dynamically mounted between the top and bottom of the first internal frame, so that, when the second aperture is moved along with the vertical flexible reflective screen past the first aperture, a shutter comprising the first and second apertures opens for the period of time during which the second aperture overlies the first aperture. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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Specification