| abstract |
A white LED lamp (1) is provided with an electrically conductive unit (12), a light emitting diode chip (20) mounted on the electrically conductive unit (12) to emit the primary light with a peak wavelength ranging from not less than 360nm to not more than 420nm, a transparent resin layer (30) made of a first transparent resin hardener to seal the light emitting diode chip (20), a phosphor layer (40) that coats the transparent resin layer (30) and contains phosphor powders (42) dispersed in a second transparent resin hardener, wherein the phosphor powders receive the primary light and emit the secondary light with a wavelength that is longer than the primary light, so that an energy of the primary light contained in projection light is equal to or less than 0.4mW/lm. According to the structure as set forth above, a white LED lamp with a UV light amount in a projected white light and radiated calorific value reduced, and a backlight and a lighting device to which the white LED lamp is applied can be provided. |