| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an LED lamp which is excellent in light diffusion characteristics and can illuminate in a wide range. <P>SOLUTION: The LED lamp has a plurality of LEDs 6. The plurality of LEDs 6 include a plurality of kinds with different light-emitting wavelengths, wherein optical axes of at least part of the plurality of kinds of LEDs 6 extend in the first direction; optical axes of at least part of the plurality of kinds of LEDs 6 extend in the second direction different from the first direction; and optical axes of the balance in the various kinds of LEDs 6 extend in the third direction different from the first and second directions. The plurality of kinds of LEDs 6 include the LEDs having a green light-emitting wavelength to which a human eye is more sensitive at the dark, and the LEDs having a yellow light-emitting wavelength which is complementary to the green light-emitting wavelength. <P>COPYRIGHT: (C)2009,JPO&INPIT |
