Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Reexamination Certificate
2008-07-08
2008-07-08
Patel, Ashok (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
C313S113000, C313S609000, C313S573000, C313S634000, C362S296040, C362S215000, C362S341000
Reexamination Certificate
active
07397176
ABSTRACT:
A surface light source device includes a light source body, first and second electrodes, a light reflecting layer, and a fluorescent layer. The light source body is configured to generate light. The first and second electrodes are each disposed adjacent to a corresponding opposite end portion of the light source body. The first and second electrodes receive a discharge voltage that creates a potential difference across the light source body. The light reflecting layer is disposed at an internal surface of the light source body. The light reflecting layer includes light diffusing particles having at least two sizes. The fluorescent layer is disposed at selected regions of the light source body. Therefore, the light reflecting layer is not deformed by heat and enhances reflectivity without changing a color coordinates.
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Cho Seog-Hyun
Ha Hae-Soo
Kim Joong-Hyun
Lee Sang-Yu
Cantor & Colburn LLP
Patel Ashok
Samsung Electronics Co,. Ltd.
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