IP Library › Granted Patent US 6,944,581
Granted Patent B2
US 6,944,581 · App. 09/879,594 · Granted Sep 13, 2005

Collimated visual display apparatus

Assignee: SEOS Limited
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Quick Facts
Patent No.
US 6,944,581
App. No.
09/879,594
Granted
Sep 13, 2005
Kind
B2
Abstract

Collimated visual display apparatus comprising an aspheric screen ( 12 ) and a curved collimating mirror ( 16 ), characterised in that the aspheric screen ( 12 ) is not a surface of revolution about an axis, the aspheric screen ( 12 ) comprises first and second parts ( 6, 8 ) which are separated from each other by a third part ( 10 ), the first and second parts ( 6, 8 ) are curved in cross section and if connected together then they would form a surface of revolution, the third part ( 10 ) is straight in cross sectional view and is a short cylindrical centre section, and the collimated visual display apparatus is such that the aspheric screen ( 12 ) has an outer curved surface that is viewed via the curved collimating mirror ( 16 ) by a user of the collimated visual display apparatus.

Claims (2)

1. Collimated visual display apparatus comprising an aspheric screen and a curved collimating mirror, characterised in that the aspheric screen is not a surface of revolution about an axis, the aspheric screen comprises first and second parts which are separated from each other by a third part, the first and second parts are curved in cross section and if connected together then they would form a surface of revolution, the third part is straight in cross sectional view and is a short cylindrical center section, and the collimated visual display apparatus is such that the aspheric screen has an outer curved surface that is viewed via the curved collimating mirror by a user of the collimated visual display apparatus.

2. A simulator when including collimated visual display apparatus, the collimated visual display apparatus comprising an aspheric screen and a curved collimating mirror, characterised in that the aspheric screen is not a surface of revolution about an axis, the aspheric screen comprises first and second parts which are separated from each other by a third part, the first and second parts are curved in cross section and if connected together then they would form a surface of revolution, the third part is straight in cross sectional view and is a short cylindrical centre section, and the collimated visual display apparatus is such that the aspheric screen has an outer curved surface that is viewed via the curved collimating mirror by a user of the collimated visual display apparatus.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2014
From: ROCKWELL COLLINS UK LIMITED
To: ROCKWELL COLLINS, INC.
Reel/Frame 032482/0765 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2012
From: ROCKWELL COLLINS VISUAL DISPLAY SYSTEMS LIMITED
To: ROCKWELL COLLINS UK LIMITED
Reel/Frame 028024/0826 →
CHANGE OF NAME Recorded Feb 21, 2012
From: SEOS LIMITED
To: ROCKWELL COLLINS VISUAL DISPLAY SYSTEMS LIMITED
Reel/Frame 027753/0596 →
CHANGE OF NAME Recorded Aug 1, 2005
From: SEOS DISPLAYS LIMITED
To: SEOS LIMITED
Reel/Frame 016598/0767 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2001
From: CREEK, ROY EDWARD
To: SEOS DISPLAYS LIMITED
Reel/Frame 011901/0546 →
Priority Claims (1)
GB 0014672 · Jun 15, 2000 · national
Continuity (1)
Related Publication 20010053966A1 · Dec 20, 2001