The ornamental design for a lampshade of a streetlamp, as shown and described.
FIG. 1 is a perspective view of a lampshade of a street lamp showing the new design.
FIG. 2 is a another perspective view thereof.
FIG. 3 is a front view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a left side view thereof.
FIG. 6 is a right side view thereof.
FIG. 7 is a top view thereof.
FIG. 8 is a bottom view thereof.
FIG. 9 is a perspective reference view of the lampshade of a street lamp in use; and,
FIG. 10 is another perspective reference view of the lampshade of a street lamp in use.
The claimed lampshade of a street lamp includes a plurality of fins parallel disposed at the top side. A plane light source such as a light emitting diode array is capable of being assembled into a recess of a bottom surface of the lampshade. The claimed lampshade further includes a housing protrudely disposed from the bottom surface of the lampshade.
The broken lines shown on the drawings depict environment only and form no part of the claimed design.