Discharge lamp and discharge lamp device
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United States of America Patent
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Jun 18, 2013
Grant Date -
Mar 29, 2012
app pub date -
Jun 4, 2010
filing date -
Jun 4, 2009
priority date (Note) -
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Abstract
A discharge lamp including: a discharge vessel 10B configured by a light-transmissive non-electrically conducting member with a light-emitting substance sealed inside; one out of a pair of antenna members 10D with a portion at one end provided inside the discharge vessel 10B and a portion at the other end projecting outside the discharge vessel 10B and covered by a non-electrically conducting member; the other of the pair of antenna members 10D with a portion at one end provided inside the discharge vessel 10B and a portion at the other end projecting outside the discharge vessel 10B, covered by a non-electrically conducting member and capable of being connected to an electromagnetic waveguide path; and a loading coil 10E wound around the portion of the first antenna member 10D that is covered by the non-conducting member. A point light source can be achieved as well as performing power supply with good efficiency.
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