Patent ID: 8469536

Claim:
A recessed lighting assembly fixable to an external support structure, the recessed lighting assembly comprising: an enclosure and a wall portion; an illumination element disposed within said enclosure; an aperture structure defining a non-round illumination aperture forming a light passageway to permit light emitted from said illumination element to exit said lighting assembly; a rotational alignment of said non-round illumination aperture being adjustable relative to said wall portion among at least first and second rotational alignment positions within or at 45 degrees of one another by rotation of said aperture structure; and means for selectively permitting and preventing rotation of said aperture structure relative to said wall portion, which is operable to selectively fix said aperture structure in any one of said rotational alignment positions and prevent rotation of said aperture structure in any direction; whereby said rotational alignment of said non-round illumination aperture is adjustable and fixable relative to said external support structure after said recessed lighting assembly is affixed to said external support structure so as to allow secure alignment of said non-round illumination aperture in a desired rotational orientation relative to said external support structure.