including an angle u00b1 u03b8 full beam angle is 2 u03b8 a part of light emitting from the led and directing to the center emits from the emitting face 4 on top of the lens after passing the micro lens array on top of the recess resulting a light distribution including an angle u00b1 u03b8 the characteristic of the light distribution of the reflection face 3 on the outer side lies in that the reflection light from the edge light impacting on the lowest edge of the reflection face 3 forms an angle of zero degree with the optical axis oz i e parallel to the optical axis oz and that the reflection light from the edge light impacting on the topmost edge of the reflection face 3 after emitting from the emitting face 4 forms an angle u03b8 with the optical axis and that the reflection light from the light impacting on other places on the reflection face 3 after emitting from the emitting face 4 forms such an angle with the optical axis that distributes in the range of 0 u02dc u03b8 according to certain radio the characteristic of the light distribution of the micro lens array on top of the recess disposed on bottom of the lens in the center area lies in that the numerical aperture angle of each micro lens is u00b1 u03b8 full beam angle is 2 u03b8 in combination with the emitting face 4 on top of the lens and that the emitting light from a plurality of micro lenses superposes to form a uniform light distribution in the angle u00b1 u03b8 whereby it effects light mixing for light from the led the lens used with present embodiment has a light distribution angle u03b8 which may be any degree from 2 degree to.