A vehicular lamp that irradiates amber light includes: a light emitting
diode operable to emit blue light; a long-wavelength phosphor operable to
emit light of which a peak wavelength is substantially equal to or longer
than a wavelength of the umber light based on the blue light emitting
from the light emitting diode; and an optical filter operable to block
the bulk of light emitting from the light emitting diode and also to
transmit the bulk of light, which has a wavelength similar to the peak
wavelength, among light emitting from the long-wavelength phosphor to
generate the amber light depending to light emitting from the light
emitting diode and the long-wavelength phosphor.