Visual display windshield
First Claim
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1. An aircraft forward vision area windshield comprising:
- a flat lamination of a plurality of transparent plies having a central vision area provided with a high degree of optical regularity which is surrounded by marginal areas for which optical regularity is less critical; and
a visual image receiving area on said lamination consisting of a transparent, reflective, cathodically sputtered, metal oxide coating having an index of refraction of at least about 2.0 on a substantial portion of the inboard surface of said central area, said visual image receiving area being at least 60% visible light transmissive normal to the plane of the windshield and having a reflectivity to visible light of less than about 25% from the inboarD side at an angle of 60* from normal to the plane of the windshield.
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Abstract
A windshield adapted for use in aircraft is provided with a transparent reflective coating on the inboard surface in the center portion of the forward vision area to form a visual image receiving area.
23 Citations
4 Claims
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1. An aircraft forward vision area windshield comprising:
- a flat lamination of a plurality of transparent plies having a central vision area provided with a high degree of optical regularity which is surrounded by marginal areas for which optical regularity is less critical; and
a visual image receiving area on said lamination consisting of a transparent, reflective, cathodically sputtered, metal oxide coating having an index of refraction of at least about 2.0 on a substantial portion of the inboard surface of said central area, said visual image receiving area being at least 60% visible light transmissive normal to the plane of the windshield and having a reflectivity to visible light of less than about 25% from the inboarD side at an angle of 60* from normal to the plane of the windshield.
- a flat lamination of a plurality of transparent plies having a central vision area provided with a high degree of optical regularity which is surrounded by marginal areas for which optical regularity is less critical; and
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2. The windshield of claim 1 wherein said coating consists essentially of indium oxide.
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3. The windshield of claim 1 wherein said coating covers about one half of the inboard surface of said lamination.
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4. The windshield of claim 1 wherein about one half of said central area is covered by said coating.
Specification
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Current AssigneeJames B. Perkins, Robert H. Taylor, Rudolph L. Jr. Malobicky
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Original AssigneeJames B. Perkins, Robert H. Taylor, Rudolph L. Jr. Malobicky
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InventorsMalobicky, Rudolph L. Jr., Perkins, James B., Taylor, Robert H.
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Primary Examiner(s)Rubin, David H.
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Application NumberUS05/423,840Time in Patent Office609 DaysField of Search350/174,171 356/251,252 353/14 117/35VUS Class Current359/630CPC Class CodesB32B 17/10036 comprising two outer glass ...G02B 2027/0118 comprising devices for impr...G02B 27/0101 characterised by optical fe...
