Illumination – Light fiber – rod – or pipe – Illuminating or display apparatus
Reexamination Certificate
2007-06-05
2007-06-05
Husar, Stephen F (Department: 2875)
Illumination
Light fiber, rod, or pipe
Illuminating or display apparatus
C362S217060, C362S221000, C362S222000, C362S223000, C362S225000, C362S235000, C362S240000, C362S244000, C362S245000, C362S260000, C362S317000, C362S329000, C362S330000, C362S609000, C362S614000, C362S615000, C362S632000, C040S541000, C040S545000, C040S546000, C040S570000
Reexamination Certificate
active
10898649
ABSTRACT:
A compact and cost-efficient lamp assembly includes cold-cathode fluorescent lamps in a variety of edge-lit display sign applications specifically, in edge-lit emergency lighting signs. The lamp assembly includes in one self-contained module a lower housing unit and an upper housing unit shaped to cover the lower housing unit. The lower housing unit is divided into a lower frame and an upper frame disposed on top of the lower frame. The upper frame has at least two inverters disposed within. The lower frame is a parabolic shape reflector frame supporting at least two cathode lamps in line with the two inverters, each of which is connected to each lamp for providing high voltage to power up the lamps. Additionally, an edge-lit panel having a front and back side is disclosed in the present invention. The backside includes a semi-transparent frosted surface with a white opaque lamination glued on the frosted surface. A legend is printed on the front side using a first white layer and a colored second layer of semi-transparent materials. So, when the light passes through the first layer it is split in such a manner that part of the light is reflected back into the panel and the other part of the light illuminates the second colored layer.
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Blier David
Mirica Viorel
Rapeanu Radu C.
Xing Zhigang
Dunwiddie Meghan K.
Hoffman & Baron LLP
Thomas & Betts International
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