Abstract: An electronic device and housing are disclosed herein. The electronic device includes a plurality of electronic components housed within the housing. The housing includes a substrate, a transparent coating layer formed on a front surface of the substrate, a deposition layer formed on a rear surface of the substrate, wherein the front surface of the substrate includes a first protrusion extending in a first direction outwards from the substrate, wherein the rear surface of the substrate includes a second protrusion extending in a second direction opposite to the first direction, wherein the first protrusion and the second protrusion differ in at least one their respective widths, depths or pitches, and wherein a first focal length of the first protrusion and a second focal length of the second protrusion are different from each other.

Abstract: According to certain embodiments, an electronic device housing comprises: a substrate including: a front surface comprising a plurality of front surface protrusions and a plurality of taper protrusions protruding from the plurality of front surface protrusions and a rear surface comprising a plurality of rear surface protrusions; and wherein two protrusions selected from the plurality of front surface protrusions, the plurality of taper protrusions, and the plurality of rear surface protrusions are different from each remaining ones of the plurality of front surface protrusions, the plurality of taper protrusions, and the plurality of rear surface protrusions; a deposition layer formed on the front surface of the substrate; and a transparent coating layer formed on the rear surface of the substrate.