Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1994-04-15
1996-03-05
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428212, 428336, 428426, 428432, 428437, 428697, 428701, 428702, 428913, 359359, 359586, 359589, G02B 1100
Patent
active
054966213
ABSTRACT:
The invention relates to a transparent coating on a transparent glass pane which may be a laminated glass pane such as an automobile windshield. The present invention provides a two-layer coating including a first layer which is a transparent oxide film in direct contact with the major surface of the glass substrate and a second layer which is a transparent oxide film. The first layer has a thickness of 70-230 nm and a refractive index of 1.80-2.10 and includes a major portion and a minor portion which is exposed and adapted to be used as a combiner of a head-up display system. The second layer is formed on the major portion of the first layer so as to expose the minor portion of the first layer. The second layer has a thickness of 110-130 nm and a refractive index of 1.40-1.50. An additional film is optionally formed on the minor portion of the first layer so as to fully or partly cover the minor portion. The additional layer is adapted to be used as a wavelength-selective combiner of the head-up display system. The two-layer coating except the minor portion is adapted to be used as a reflectance reducing coating. To reduce the reflectance of perpendicularly incident light the two-layer coating can be modified into a three-layer coating by interposing another oxide film.
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Makita Kensuke
Takamatsu Atsushi
Tanaka Katsuto
Central Glass Company Limited
Krynski William A.
Ryan Patrick J.
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