Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate
2008-04-22
2008-04-22
Allen, Stephone B. (Department: 2872)
Optical: systems and elements
Extended spacing structure for optical elements
Extension of tubular element adjustable
C359S485050, C349S096000
Reexamination Certificate
active
10579932
ABSTRACT:
A mirror display device which may be simultaneously used for display purposes, based on a display, wherein the display device during use provides light of a first (circular) polarization, with a switchable polarizing mirror placed in front of it. The reflectivity of such a mirror display device may be enhanced by providing a second switchable (circular) polarizer between the display device and the polarizing mirror.
REFERENCES:
patent: WO 9838547 (1998-09-01), None
Hikmet Rifat Ata Mustafa
Horsten Jan Baptist Adrianus Maria
Allen Stephone B.
Chapel Derek S.
Koninklijke Philips Electronics , N.V.
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