1. Self-aligning trunnions connected to a cradle frame, and wherein said cradle frame supports a rotatable cylindrical drum having a pair of trunnion rings spaced along a central longitudinal axis thereof, said self-aligning trunnions comprising:
first and second pairs of base plates, said first pair positioned substantially proximate one of said trunnion rings and said second pair positioned substantially proximate the other of said trunnion rings, the two base plates of each said pair of base plates being spaced apart a distance less than the diameter of said cylindrical drum;
a single roller member with a longitudinal axis of rotation substantially parallel with said central longitudinal axis of said drum mounted on each of said four base plates with bearings to permit said roller members to engagingly support said trunnion rings at four positions to support said cylindrical drum; and
first and second support bearings connected to each said base plate to contact said cradle frame, said first and second support bearings being in alignment on said base plate substantially transverse to the longitudinal axis of rotation of said roller member mounted on said base plate, said first and second support bearings adapted to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
said first support bearing comprising mated ball and socket components wherein the ball component is rotatably received within the socket component to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
whereby said arcuate and tilting movements of said base plates permit the roller members mounted thereon to maintain full contact with said trunnion rings.
2. Self-aligning trunnions connected to a cradle frame, and wherein said cradle frame supports a rotatable cylindrical drum having a pair of trunnion rings spaced along a central longitudinal axis thereof, said self-aligning trunnions comprising:
first and second pairs of base plates, said first pair positioned substantially proximate one of said trunnion rings and said second pair positioned substantially proximate the other of said trunnion rings, the two base plates of each said pair of base plates being spaced apart a distance less than the diameter of said cylindrical drum;
a single roller member with a longitudinal axis of rotation substantially parallel with said central longitudinal axis of said drum mounted on each of said four base plates with bearings to permit said roller members to engagingly support said trunnion rings at four positions to support said cylindrical drum; and
first and second support bearings connected to each said base plate to contact said cradle frame, said first and second support bearings being in alignment on said base plate substantially transverse to the longitudinal axis of rotation of said roller member mounted on said base plate, said first and second support bearings adapted to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
said second support bearing comprising a strut and first and second mated ball and socket components connected to each end of said strut wherein each ball component is rotatably received within the corresponding socket component to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
whereby said arcuate and tilting movements of said base plates permit the roller members mounted thereon to maintain full contact with said trunnion rings.
3. A multi-point support system mounted on a cradle frame to rotate a cylindrical drum having a pair of trunnion rings spaced along a central longitudinal axis thereof, each point support comprising:
a base plate positioned substantially proximate of said trunnion ring, said base plate being spaced outwardly from a vertical plane through said central longitudinal axis a distance less than the radius of said cylindrical drum;
a roller member with a longitudinal axis of rotation substantially parallel with said central longitudinal axis of said drum mounted on said base plate with bearings to permit said roller member engages said trunnion ring; and
first and second support bearings connected to said base plate to contact said cradle frame, said first and second support bearings being in alignment on said base plate substantially transverse to the longitudinal axis of rotation of said roller member mounted on said base plate, said first and second support bearings adapted to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
said first support bearing comprising mated ball and socket components wherein the ball component is rotatably received within the socket component to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
whereby said arcuate and tilting movements of said base plate permit the roller member mounted thereon to maintain full contact with said trunnion ring.
4. A multi-point support system mounted on a cradle frame to rotate a cylindrical drum having a pair of trunnion rings spaced along a central longitudinal axis thereof, each point support comprising:
a base plate positioned substantially proximate of said trunnion ring, said base plate being spaced outwardly from a vertical plane through said central longitudinal axis a distance less than the radius of said cylindrical drum;
a roller member with a longitudinal axis of rotation substantially parallel with said central longitudinal axis of said drum mounted on said base plate with bearings to permit said roller member engages said trunnion ring; and
first and second support bearings connected to said base plate to contact said cradle frame, said first and second support bearings being in alignment on said base plate substantially transverse to the longitudinal axis of rotation of said roller member mounted on said base plate, said first and second support bearings adapted to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
said second support bearing comprising a strut and first and second mated ball and socket components connected to each end of said strut wherein each ball component is rotatably received within the corresponding socket component to permit slight arcuate movement of said base plate about said first support bearing and to permit slight tilting movement of said base plate about a common transverse axis through said first and second support bearings;
whereby said arcuate and tilting movements of said base plate permit the roller member mounted thereon to maintain full contact with said trunnion ring.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An illumination assembly comprising:
a light source;
a reflector cup, said light source being located within said reflector cup, said reflector cup having a reflective surface with at least one diffuser;
a clear encapsulant at least partially filling said reflector cup;
said at least one diffuser comprising a plurality of distensions formed on a wall of said reflector cup; and
wherein said plurality of distensions comprises an array of dimples.
2. (canceled)
3. The illumination assembly of claim 1, said at least one diffuser comprising a surface coating on a wall of said reflector cup.
4. (canceled)
5. (canceled)
6. The illumination assembly of claim 1, wherein said plurality of distensions is arranged as a spatially uniform array.
7. The illumination assembly of claim 1, wherein said plurality of distensions has an irregular spatial arrangement.
8. The illumination assembly of claim 1, wherein said plurality of distensions comprises an array of heterogeneous shapes.
9. The illumination assembly of claim 1, wherein said plurality of distensions comprises a mix of different shapes.
10. The illumination assembly of claim 1, wherein said plurality of distensions comprises a continuously varying profile on said wall of said reflector cup.
11. The illumination assembly of claim 1, said at least one diffuser comprising a plurality of varied slopes to which said encapsulant clings to prevent delamination of the encapsulant from said reflector cup.
12. The illumination assembly of claim 1, further comprising a lens mounted over said reflector cup and said light source, said encapsulant at least partially filling a void under said lens.
13. The illumination assembly of claim 1, further comprising a housing around said reflector cup and said light source.
14. The illumination assembly of claim 1, further comprising a plurality of electrically conductive leads.
15. The illumination assembly of claim 1, said light source comprising at least one light emitting diode die.
16. The illumination assembly of claim 1, said light source comprising a plurality of light emitting diode dice.
17. A display comprising a plurality of illumination assemblies, the plurality of illumination assemblies each comprising:
at least one light source;
a reflector cup, said at least one light source being positioned at an inside base of said reflector cup, said reflector cup comprising a diffusive reflective surface; and
an encapsulant disposed over said at least one light source within said reflector cup.
18. The display of claim 17, said display comprising a stadium display.
19. The display of claim 17, said diffusive reflective surface in said plurality of illumination assemblies comprising arrays of distensions on walls of said reflector cups.
20. (canceled)