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US 2008/0158669 A1Published application
Projection screen apparatus for use with portable digital projectors
Assignee3M Innovative Properties Company
InventorsMichael W. O'Keefe, John E. Duncan
Life of this patent
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Abstract
Projection screen apparatuses that comprise at least a first and a second projection screen member having different optical properties are described. These screen members can be adapted to connect to each other to form a self-supporting structure in which the first projection screen member is oriented in a viewing position and the second projection screen member is oriented in a support position.
Claims14
A projection screen apparatus suitable for use with portable projectors, comprising:
- a first rigid projection screen member and a second rigid projection screen member having different optical properties;
- wherein the first projection screen member and the second projection screen member are adapted to connect to each other to form a self-supporting structure in which the first projection screen member is oriented in a viewing position and the second projection screen member is oriented in a support position.
A projection screen apparatus suitable for use with portable projectors, comprising:
- a first rigid projection screen member and a second rigid projection screen member having different optical properties;
- and
- a coupling mechanism for connecting the first projection screen member to the second projection screen member;
- wherein the coupling mechanism is (a) capable of forming the first and second projection screen members into a self-supporting structure in which the first projection screen member is oriented in a viewing position and the second projection screen member is oriented in a support position and (b) capable of reorienting the first and second projection screen members into a compact configuration.
1 more element
Dependencies are inferred from the claim text.