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1. (WO2018013960) ELECTRO-OPTIC ELEMENT WITH HIGH DOUBLE IMAGE RATIO

Pub. No.:    WO/2018/013960    International Application No.:    PCT/US2017/042194
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Sat Jul 15 01:59:59 CEST 2017
IPC: B60K 35/00
G02B 27/01
G02F 1/15
Applicants: GENTEX CORPORATION
Inventors: NEUMAN, George A.
SAENGER NAYVER, Mario F.
ANDERSON, John S.
Title: ELECTRO-OPTIC ELEMENT WITH HIGH DOUBLE IMAGE RATIO
Abstract:
A variable transmittance electro-optic assembly includes a first partially reflective, partially transmissive substrate defining first and second surfaces. A second partially reflective, partially transmissive substrate defines a third surface and a fourth surface. The first and second substrates are held in a parallel spaced apart relationship and sealed about a perimeter of the first and second substrates. An electro-optic material is positioned between the second surface and the third surface. The electro-optic assembly includes a principle transflector having a transflector coating on at least one of first and second surfaces. Low reflectance coatings are disposed on secondary surfaces of the variable transmittance electro-optic assembly. The electro-optic assembly has a high double image characteristic defined by a ratio of a reflectance of the transflector coating to a net reflectance of at least one of the secondary surfaces, and further wherein the ratio is greater than 50.