ADJUSTABLE WALL WASHING ILLUMINATION ASSEMBLY
A lighting fixture for providing wall washing illumination to a surface includes a fixture housing having a lens mounted at one end. The light is provided through the lens. The lens is mounted in two slots such that the lens can be moved along a primary axis of the fixture and an angle of the lens with respect to the primary axis can be changed within a predetermined range of angles.
1 . A lighting fixture, comprising:
a housing having a proximal end and a distal opening at a distal end;
a lens; and
means for slidably and rotatably coupling the lens to the housing.
2 . The lighting fixture of claim 1 , wherein the coupling means comprises:
first and second pins coupled to the lens.
3 . The lighting fixture of claim 2 , wherein the coupling means further comprises:
first and second longitudinal slots, defined in the fixture housing, respectively coupled to the first and second pins.
4 . The lighting fixture of claim 1 , wherein the coupling means comprises:
a lens holder containing the lens, the lens holder having first and second pins located on a periphery of the lens holder,
wherein each of the pins is coupled to the fixture housing.
5 . The lighting fixture of claim 4 , further comprising:
first and second longitudinal slots, defined in the fixture housing, respectively coupled to the first and second pins.
6 . A lighting fixture portion, comprising:
a fixture housing having a longitudinal axis, a proximal end and a distal opening at a distal end;
first and second longitudinal slots, defined in the fixture housing, wherein the first and second longitudinal slots are parallel to the longitudinal axis of the fixture housing; and
a lens slidably coupled to the first and second slots.
7 . The lighting fixture portion of claim 6 , wherein the fixture housing is cylindrical.
8 . The lighting fixture of claim 7 , wherein the fixture housing is hollow.
9 . The lighting fixture portion of claim 6 , further comprising:
first and second pins coupled to the lens through a respective slot in the fixture housing.
10 . The lighting fixture portion of claim 9 , wherein each pin is in a friction fit with the respective slot.
11 . The lighting fixture portion of claim 9 , wherein each of the slots has a same predetermined length that is chosen such that the lens cannot be rotated to extend from the fixture housing when each of the first and second pins is located at a proximal end of the respective slot.
12 . The lighting fixture portion of claim 9 , wherein each of the first and second slots comprises a recessed portion and each of the first and second pins comprises a head portion to couple with the recessed portion of the respective slot.
13 . The lighting fixture portion of claim 12 , wherein each of the first and second pins is screwed to the lens.
14 . The lighting fixture portion of claim 6 , wherein the first and second slots have respective first and second slot lengths.
15 . The lighting fixture portion of claim 14 , wherein the first and second slot lengths are the same.
16 . The lighting fixture portion of claim 6 , further comprising:
a lens holder containing the lens, the lens holder having first and second pins located on a periphery of the lens holder,
wherein each of the pins is coupled to a respective fixture housing slot.
17 . The lighting fixture portion of claim 6 , wherein a distal end of each of the first and second slots is a same distance from the distal end of the fixture housing.
18 . The lighting fixture portion of claim 6 , wherein the lens is an optical lens comprising:
a first surface comprising a linear spread structure; and
a second surface comprising a directional cut structure.
19 . A lighting fixture, comprising:
a fixture housing having a longitudinal axis, a proximal end, a distal end and an opening provided at the distal end;
a first slot, having a first predetermined slot length oriented parallel to the longitudinal axis, defined in the fixture housing;
a second slot, having a second predetermined slot length oriented parallel to the longitudinal axis, defined in the fixture housing, wherein the second slot is located opposite the first slot about a periphery of the fixture housing; and
a lens movably coupled to the first and second slots.
20 . The lighting fixture of claim 19 , further comprising:
first and second pins coupled to the lens through a respective fixture housing slot.
21 . The lighting fixture of claim 20 , wherein each pin is friction fit with the respective slot.
22 . The lighting fixture of claim 20 , wherein each of the slots has a same length that is chosen such that the lens cannot be rotated to extend from the fixture housing when each of the first and second pins is located at a proximal end of the respective slot.
23 . The lighting fixture of claim 20 , wherein each of the first and second slots comprises a recessed portion and each of the first and second pins comprises a portion to couple with the recessed portion of the respective slot.
24 . The lighting fixture of claim 23 , wherein each of the first and second pins is threadably coupled to the lens.
25 . The lighting fixture of claim 20 , wherein the lens is circular and comprises a diameter that is less than an inner diameter of the distal opening of the fixture housing.
26 . The lighting fixture of claim 25 , wherein the first and second pins are disposed 180° from one another about a circumference of the lens.
27 . The lighting fixture of claim 19 , further comprising:
a lens holder containing the lens, the lens holder having first and second pins located on a periphery of the lens holder,
wherein each of the pins is coupled to a respective fixture housing slot.
28 . The lighting fixture of claim 27 , wherein each pin is friction fit with the respective slot.
29 . The lighting fixture portion of claim 19 , wherein the fixture housing is cylindrical.
30 . The lighting fixture portion of claim 29 wherein the first and second slots are positioned 180° from one another about the circumferential periphery of the fixture housing.
31 . The lighting fixture of claim 19 , further comprising:
a light source disposed in the fixture housing to direct a light beam toward the distal opening of the fixture housing.
32 . The lighting fixture of claim 19 , wherein the first and second predetermined slot lengths are the same.
33 . The lighting fixture of claim 19 , wherein a distal end of each of the first and second slots is a same distance from the distal end of the fixture housing.
34 . The lighting fixture of claim 19 , wherein the lens is an optical lens comprising:
a first surface comprising a linear spread structure; and
a second surface comprising a directional cut structure.