Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-08-23
2005-08-23
Lester, Evelyn A. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S268000, C359S265000, C359S275000
Reexamination Certificate
active
06934067
ABSTRACT:
An improved electrochromic rearview mirror for motor vehicles, the mirror incorporating thin front and rear spaced glass elements having a thickness ranging from about 0.5 to about 1.5. A layer of transparent conductive material is placed onto the mirror's second surface, and either another layer of transparent conductive material or a combined reflector/electrode is placed onto the mirror's third surface. A chamber, defined by the layers on the interior surfaces of the front and rear glass elements and a peripheral sealing member, contains a free-standing gel comprising a solvent and a crosslinked polymer matrix. The chamber further contains at least one electrochromic material in solution with the solvent and interspersed in the crosslinked polymer matrix. The gel cooperatively interacts with the thin glass elements to form a thick, strong unitary member which is resistant to flexing, warping, bowing and/or shattering and further allows the mirror to exhibit reduced vibrational distortion and double imaging.
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Ash Kevin L.
Bauer Frederick T.
Roberts Kathy E.
Tonar William L.
Gentex Corporation
King & Jovanovic, PLC
Lester Evelyn A.
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