It is sought to provide an indicator lamp, which is excellent not only in
short distance visual recognition property but also in long distance one,
as well as being further excellent in sight field angle property.An
indicator lamp includes a light-emitting element 1 and a light-emitting
element lens 2 having a light-emitting element mounting cavity 3 formed
at the bottom, in which the light-emitting element disposed in the cavity
3 emits light to be fully reflected by the peripheral surface of the lens
1 and proceeds as emission light flux forwardly of the lens 1. The slope
angle of the peripheral surface with respect to the lens axis is reduced
progressively from the bottom toward the lens front surface 5 in three
stages, thus forming circumferential corners 7 and 8 as boundaries
between adjacent ones of the three stages. The circumferential corners
scatter light emitted from the light emitting element 2 to provide
concentric emission light fluxes as viewed from the side of the lens
front.