Optical: systems and elements – Mirror – With mirror surface of varied radius
Patent
1995-12-22
1998-09-08
Nelms, David C.
Optical: systems and elements
Mirror
With mirror surface of varied radius
359850, 359267, G02B 510, G02B 508, G02F 1153
Patent
active
058053670
ABSTRACT:
A transparent electrode 21 formed by the ITO film, an EC layer 22 of an optoelectronic comprising element, a reflecting film also serving an electrode thin film 23 and an insulating sealing film 24 are deposited on a rear surface of a transparent substrate 20 of a main member of a mirror 10. The transparent substrate 20 has dividing lines 15, 16 for dividing a mirror surface area into a main mirror surface area 11 of a certain curvature convex surface having a large radius curvature and a supplemental mirror surface area 12 of a gradually varied curvature convex surface having a gradually decreased radius curvature. The EC layer 22 and the reflecting film also serving the electrode thin film 23 are divided along the dividing line 16 by cutting the transparent electrode 21 so that a reflectivity can be independently controlled on the main mirror surface area 11 and the supplemental mirror surface area 12 to achieve a safe driving of an automobile.
REFERENCES:
patent: 4245894 (1981-01-01), Luchtenberg
patent: 4878743 (1989-11-01), Aikawa et al.
patent: 5076674 (1991-12-01), Lynam
patent: 5563744 (1996-10-01), Matsumiya
Cornely John P.
Murakami Kaimeido Co. Ltd.
Nelms David C.
Striker Michael J.
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