EP0515175A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Heads-up projection display
Assignee: Westinghouse Electric Corp
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Filing: 1992-05-20
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Granted: —
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Expires: 2012-05-20
Abstract
Abstract A projection apparatus is provided which produces a heads-up display in a helmet (10) of the type commonly worn by a pilot. The projection apparatus includes a thin-film electroluminescent source having an edge emitter (16) device provided therein. The edge emitter (16) produces a linear signal which is transversely deflected by a scanner to produce an image on a display area (14). Preferably, the display area is provided on the face plate (12) of a helmet (10) worn by the pilot. <IMAGE>
Inventors
- 👤 David Leksell
- 👤 Zoltan Kokai Kun
- 👤 George Francis Mechlin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 06:57
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/0406; A42B3/042; G; G02; G02B; G02B27/00; G02B27/01; G02B27/017; G02B27/0172; G02B27/0176; G09; G09G; G09G3/00; G09G3/02; G02B27/0101; G02B2027/014; G02B5/00; G02B5/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
49 words
A projection apparatus for providing a heads-up display in a helmet (10) characterized by a thin-film electroluminescent means having an edge emitter (16) provided therein which produces a linear output, and means operatively connected to said thin-film electroluminescent means for transversely scanning said linear output over a designated area.
Claim 2
Dependent Claim
32 words
The apparatus of claim 1 further characterized by a transparent surface provided in said helmet (10), said transparent surface (12) adapted to receive said transversely scanned linear output and display an image.
Claim 3
Dependent Claim
22 words
The apparatus of claim 2 wherein said transparent surface (12) is polarized, said polarized surface (12) adapted to display said image thereon.
Claim 4
Dependent Claim
27 words
The apparatus of claim 2 wherein said transversely scanned linear output is directed at said transparent surface (12) at an appropriate angle to produce an image thereon.
Claim 5
Dependent Claim
28 words
The apparatus of claim 2 further characterized by a power logic circuit (18) operatively connected to said thin-film electroluminescent means for controlling the production of said linear output.
Claim 6
Dependent Claim
30 words
The apparatus of claim 5 wherein said power logic circuit (18) and said transversely scanning means are operatively connected to produce a heads-up display image on said transparent surface (12).
Claim 7
Dependent Claim
62 words
The apparatus of claim 5 wherein said scanning means comprises an elliptical mirror (20) provided intermediate said thin-film electroluminescent means and said transparent surface (12) and drive means (22) connected to said elliptical mirror (20) to rotate said mirror (20) wherein said rotation of said mirror (20) transversely deflects said linear output across said designated area (14) of said transparent surface (12).
Claim 8
Dependent Claim
63 words
The apparatus of claim 5 wherein said scanning means comprises an oscillating flat mirror (30) provided intermediate said thin-film electroluminescent means and said transparent surface (12) and drive means (32) connected to said flat mirror (30) to oscillate said mirror (30) wherein said oscillation of said mirror (30) transversely deflects said linear output across said designated area (14) of said transparent surface (12).
Claim 9
Dependent Claim
41 words
The apparatus of claim 5 wherein said scanning means comprises oscillating means provided on said thin-film electroluminescent means wherein said oscillation of said thin-film electroluminescent means transversely deflects said linear output across said designated area (14) of said transparent surface (12).
References Cited (Backward Citations)
No citation records indexed.
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