Light-weight lighting fixture

1. A lighting fixture, comprising:

one or more side panels comprising one or more thermoplastic sheets welded together without hardware at corresponding flanges bent inward from an outer surface of the one or more panels, such that the welded one or more thermoplastic sheets form an outer shade element;

one or more side panels comprising one or more thermoplastic sheets welded together without hardware at corresponding flanges bent inward from an outer surface of the one or more panels, such that the welded one or more thermoplastic sheets form an inner shade element;

the inner shade element forming a cavity with a passageway therethrough;

a bottom panel coupled to the outer shade element and the inner shade element without hardware; and

a top panel coupled to the outer shade element and the inner shade element without hardware;

wherein:

the one or more side panels include a diffusion layer; and

the lighting fixture includes one or more light sources.

2. The lighting fixture as recited in claim 1 , wherein the one or more side panels of the outer shade element have a thickness greater than about 1/16″.

3. The lighting fixture as recited in claim 1 , wherein the one or more side panels of the inner shade element have a thickness less than about 1/16″.

4. The lighting fixture as recited in claim 1 , wherein:

the corresponding flanges comprise solvent weld points that couple the corresponding flanges of the one or more thermoplastic sheets together; and

the weld points indicate points at which the flanges have partially dissolved and solidified.

5. The lighting fixture as recited in claim 4 , wherein the bottom panel and top panel each comprises a thermoplastic sheet that is solvent welded to the outer shade element.

6. The lighting fixture as recited in claim 1 , wherein the outer shade element comprises one or more corners formed therein.

7. The lighting fixture as recited in claim 6 , wherein the outer shade element comprises a substantially square or rectangular shape.

8. The lighting fixture as recited in claim 1 , wherein the outer shade element comprises a substantially cylindrical shape.

9. The lighting fixture as recited in claim 1 , wherein:

at least one of the panels forming the outer shade element, inner shade element, bottom panel, or top panel is textured; and

the textured panel comprises a surface roughness that deflects and diffuses light emitted by the one or more light sources.

10. The lighting fixture as recited in claim 1 , further comprising:

one or more mounting elements coupled to the lighting fixture;

wherein the one or more mounting elements couple one or more panels selected from the outer shade element, the inner shade element, the top panel, and bottom panel of the lighting fixture to a support surface panels a support surface.

11. The lighting fixture as recited in claim 1 , wherein the diffusion layer comprises a coating applied to a panel surface.

12. The lighting fixture as recited in claim 11 , wherein the coating comprises a translucent paint.

13. The lighting fixture as recited in claim 11 , wherein the coating comprises a white translucent film.

14. A lighting fixture, comprising:

a plurality of side panels coupled together without hardware to form an outer shade element, wherein each side panel of the plurality comprises a resin sheet;

a plurality of side panels coupled together without hardware to form an inner shade element, wherein each side panel of the plurality comprises a resin sheet;

the inner shade element forming a cavity with a passageway therethrough;

a resin bottom panel coupled to the outer shade element and the inner shade element without hardware; and

a resin top panel coupled to the outer shade element and the inner shade element without hardware;

wherein:

the plurality of side panels forming the outer shade element are solvent-welded together at one or more flanges;

the plurality of side panels forming the inner shade element are solvent-welded together at one or more flanges; and

the top panel and bottom panels are solvent welded to the inner shade element and outer shade element using a solvent that at least partially dissolves the contacted resin upon contact before solidifying the contacted resin.

15. The lighting fixture as recited in claim 14 , wherein:

the top panel and bottom panel have outer profiles; and

wherein the outer profile of the top panel is larger than the outer profile of the bottom panel.

16. The lighting fixture as recited in claim 14 , wherein

the top panel has a slot;

the bottom panel has a slot;

the outer element has a profile;

the inner element has a profile;

the profile of the outer element at least partially follows the top panel slot and bottom panel slot; and

the profile of the inner element at least partially follows the top panel slot and bottom panel slot.

17. The lighting fixture as recited in claim 14 , wherein

the top panel has a groove;

the bottom panel has a groove.

18. The lighting fixture as recited in claim 14 , further comprising:

mounting elements couplable to the top panel.

19. The lighting fixture as recited in claim 14 , wherein the side panels are made of a thermoplastic material.

20. The lighting fixture as recited in claim 14 , wherein the outer shade element and the inner shade element are cold-formed.

21. The lighting fixture as recited in claim 14 , wherein the top panel and the bottom panel are single sheets of translucent material.

22. The lighting fixture as recited in claim 21 , wherein the translucent material of the top panel and the bottom panel includes a coating for diffusing light.

23. The lighting fixture as recited in claim 21 , wherein the translucent material of the top panel and the bottom panel has a surface roughness.

24. The lighting fixture as recited in claim 14 , wherein the plurality of side panels of the outer shade element have a thickness greater than about 1/16″.

25. The lighting fixture as recited in claim 14 , wherein the plurality of side panels of the inner shade element have a thickness less than about 1/16″.

26. The lighting fixture as recited in claim 14 , wherein the outer shade element comprises one or more corners formed therein.

27. The lighting fixture as recited in claim 26 , wherein the outer shade element comprises a substantially square or rectangular shape.

28. The lighting fixture as recited claim 14 , wherein the outer shade element comprises a substantially cylindrical shape.

29. A lighting fixture, comprising:

a plurality of panels solvent-welded together without hardware at corresponding flanges, thereby forming an outer shade element;

a plurality of panels welded together without hardware at corresponding flanges of the plurality of panels, thereby forming an inner shade element;

the inner shade element forming a cavity with a passageway therethrough;

a bottom panel solvent welded to the outer shade element and the inner shade element without hardware;

a top panel solvent welded to the outer shade element and the inner shade element without hardware; and

a diffusion layer, wherein the diffusion layer is applied to at least one of the panels forming the outer shade element, inner shade element, bottom panel, or top panel;

wherein:

the plurality of panels in the outer shade element and inner shade element comprise translucent thermoplastic resin sheets;

the lighting fixture includes one or more light sources.

30. The lighting fixture as recited in claim 29 , wherein the corresponding flanges in the plurality of panels forming the outer shade element are bent inward and away from an outer surface of the plurality of panels.

31. The lighting fixture as recited in claim 29 , wherein the corresponding flanges in the plurality of panels forming the inner shade element are bent inward and away from an outer surface of the plurality of panels.

32. The lighting feature as recited in claim 29 , wherein the plurality of panels of the outer shade element have a thickness greater than about 1/16″, and wherein the plurality of panels of the inner shade element have a thickness greater than about 1/16″.

33. The lighting fixture as recited in claim 29 , wherein at least one of the panels forming the outer shade element, inner shade element, bottom panel, or top panel is textured, such that the textured panel comprises a surface roughness that deflects and diffuses light emitted by the one or more light sources.

34. The lighting fixture as recited in claim 29 , wherein the diffusion layer comprises a coating applied to a panel surface.

35. The lighting fixture as recited in claim 34 , wherein the coating comprises a translucent film.

36. The lighting fixture as recited in claim 34 , wherein the coating comprises a translucent paint.

37. The lighting fixture as recited in claim 29 , wherein the plurality of panels of the outer shade element form one or more corners.

38. The lighting fixture as recited in claim 37 , wherein the outer shade element comprises a substantially square or rectangular shape.

39. The lighting fixture as recited in claim 29 , wherein the plurality of panels of the outer shade element form a substantially cylindrical shape.

40. The lighting fixture as recited in claim 29 , further comprising:

one or more mounting elements coupled to the lighting fixture;

wherein the one or more mounting elements couple one or more panels selected from the outer shade element, the inner shade element, the top panel, and bottom panel of the lighting fixture to a support surface.