Electric lamp and discharge devices – With temperature modifier – Having heat conducting path
Reexamination Certificate
2006-10-17
2006-10-17
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
With temperature modifier
Having heat conducting path
C313S035000, C313S044000
Reexamination Certificate
active
07122946
ABSTRACT:
There is provided a light source device, used in a display device and the like, having a high light emitting efficiency. The light source device has an electric discharge tube containing mercury and electrodes at both ends. A heat conducting member is attached to and is in contact with a part of the electric discharge tube. The heat conducting member locally cools the tube. The heat conducting member and the tube satisfy the following relationship, 6×10−5(m2·k)/S<(1/k1−1/k2)W, where a cross sectional area of the electric discharge tube is S (m2), an amount of generate heat per unit length of the electric discharge tubes is W (W/m), heat conductivity of the non-cooling part is k1 (W/K/m), and heat conductivity of the cooling part is defined as k2 (W/K/m).
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Hamada Tetsuya
Hayashi Keiji
Kobayashi Tetsuya
Sugawara Mari
Suzuki Toshihiro
Greer Burns & Crain Ltd.
Hodges Matt
Patel Nimeshkumar D.
Sharp Kabushiki Kaisha
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