Invention Grant
- Patent Title: Electro-optic element with high double image ratio
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Application No.: US15650618Application Date: 2017-07-14
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Publication No.: US10247995B2Publication Date: 2019-04-02
- Inventor: George A. Neuman , Mario F. Saenger Nayver , John S. Anderson
- Applicant: Gentex Corporation
- Applicant Address: US MI Zeeland
- Assignee: GENTEX CORPORATION
- Current Assignee: GENTEX CORPORATION
- Current Assignee Address: US MI Zeeland
- Agency: Price Heneveld LLP
- Agent Bradley D. Johnson
- Main IPC: G02F1/157
- IPC: G02F1/157 ; F21V7/22 ; G02F1/00 ; G02F1/01 ; G02F1/155 ; G02B27/01 ; B60R1/12

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 substrate and the second substrate are configured to be 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.
Public/Granted literature
- US20180017834A1 ELECTRO-OPTIC ELEMENT WITH HIGH DOUBLE IMAGE RATIO Public/Granted day:2018-01-18
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