Optical: systems and elements – Building interior illumination with reflected – refracted or... – Unitary light transmitting member comprising plural...
Reexamination Certificate
2006-06-06
2006-06-06
Perkey, W. B. (Department: 2851)
Optical: systems and elements
Building interior illumination with reflected, refracted or...
Unitary light transmitting member comprising plural...
C359S593000, C359S594000, C359S598000, C136S246000, C136S251000, C250S227110, C362S260000, C362S800000, C385S900000
Reexamination Certificate
active
07057821
ABSTRACT:
An artificial and natural lighting system placed in the roof of a building that is substantially self-contained and powered. A photovoltaic cell provides electricity stored in a battery to power light emitting diodes. A highly reflective interior coating applied to the light shaft maximizes lighting intensity. A sensor detects illumination intensity and temperature within the light shaft to control the balance of natural and artificial light provided to maintain predetermined illumination intensity. The light shaft is insulated to reduce heat transfer and a thermal collector removes heat from the building. In one embodiment, a Fresnel lens is utilized to focus natural light onto the photovoltaic cell. In another embodiment, conventional fluorescent lighting powered by external line voltage is combined with light emitting diodes powered primarily by a rechargeable battery. The present invention, being substantially self-contained, is easily retrofitted to existing buildings with a minimum of connections and provides substantial energy efficiencies in illuminating the building.
REFERENCES:
patent: 4326012 (1982-04-01), Charlton
patent: 4529830 (1985-07-01), Daniel
patent: 5528471 (1996-06-01), Green
patent: 5716442 (1998-02-01), Fertig
patent: 6730840 (2004-05-01), Sasaoka et al.
patent: 6895145 (2005-05-01), Ho
patent: 2002/0053879 (2002-05-01), Thoma et al.
Cruz Magda
Fattibene Arthur T.
Fattibene Paul A.
Fattibene & Fattibene
Perkey W. B.
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