| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lamp with new cooling and heat radiation means.SOLUTION: The LED lamp comprises: plural LED elements; a light source support supporting the LED elements on a side face and extending along a lamp axial line; and a glass sealed container surrounding the light source support, air-tightly sealed, and filled with low molecular weight gas as cooling gas. The light source support surrounds a cooling gas flow passage along the lamp axial line, and has gas flow-in and flow-out ports between both ends in addition to gas flow-in and flow-out ports at both ends of the light source support. |
