1. A lighting fixture comprising:
a front end-portion having an edge defining a light opening and a back end-portion spaced from the light opening which has a centerline;
at least one LED emitter on a substantially planar board disposed at the back end-portion for directing light toward the light opening, the emitter(s) being positioned off-centerline in a first lateral direction; and
a lens for the at least one emitter, the lens being configured for distribution of light from the emitter(s) primarily in a second lateral direction which is opposite the first lateral direction such that the light passes through the light opening at a portion of the edge that is off-centerline in the second lateral direction, thereby to widen the illumination angle from the fixture.
2. The recessed lighting fixture of claim 1 wherein no more than minimal light directed onto the support member.
3. The lighting fixture of claim 1 wherein each lens is a separate piece over the associated emitter.
4. The recessed lighting fixture of claim 1 wherein:
the board has a peripheral region surrounding a non-peripheral region; and
at least one other emitter on the non-peripheral region and having the associated lens configured for distribution of light therefrom along an emitter axis with no more than minimal light directed onto the support member.
5. The lighting fixture of claim 4 wherein the peripheral region has an annular shape concentric with the opening.
6. The lighting fixture of claim 1 wherein the mounting board is substantially parallel to a light-opening plane.
7. The lighting fixture of claim 1 wherein each lens for directing light in a preferential-side toward the second lateral direction includes:
an emitter-adjacent base end forming an opening;
an inner surface extending from the base end with (a) a surrounding lateral surface formed about the emitter axis and (b) an end surface configured to direct light toward the preferential side, the inner surface forming a void;
an output-end surface configured to direct light toward the preferential side; and
an outer lateral surface configured for TIR to direct light toward the output-end surface, whereby light from the emitter exits the output-end surface predominantly toward the preferential side.
8. The lighting fixture of claim 7 wherein the surrounding lateral surface is substantially cylindrical.
9. The lighting fixture of claim 8 wherein the substantially cylindrical lateral surface has a right cylindrical shape of substantially circular cross-section.
10. The lens of claim 7 wherein the inner end surface has a substantially planar portion angled toward the preferential side and transitioning from near the emitter axis to a convex portion that is on a non-preferential side and meets the surrounding lateral surface at a position farthest from the base end.
11. The lighting fixture of claim 10 wherein the outer lateral surface extends from the base end to terminate proximal to the output-end surface at distances from the emitter axis which are greatest on the preferential side and gradually decrease toward a non-preferential side.
12. The lighting fixture of claim 11 wherein the outer lateral surface has angles of divergence with respect to the emitter axis which are the greatest on the preferential side and gradually decrease toward the non-preferential side.
13. The lighting fixture of claim 7 wherein the output-end surface is substantially planar.
14. The lighting fixture of claim 13 wherein the emitter-adjacent base end is a planar surface which is substantially perpendicular to an emitter axis.
15. The lighting fixture of claim 14 wherein the output-end surface is angled toward a non-preferential side, with the edge of such output-end surface on the preferential side being farthest from the plane of the base end.
16. The lighting fixture of claim 7 wherein the lens further includes an outward flange about the outer lateral surface.
17. The lighting fixture of claim 16 wherein the outward flange includes a reference mark indicating an orientation of the preferential side during installation of the lens over the emitter.
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. A device (10) for damping torsion between a clutch element (16) and a transmission shaft, the device (10) comprising:
at least one input washer (12A, 12B) that is rotationally integral with the clutch element (16) around the axis (B) of the transmission shaft;
at least one output web (18A, 18B) that is rotationally integral with the transmission shaft by means of a central hub (20);
at least one pair of circumferentially acting elastic members (42) that are interposed circumferentially in series between the input washer (12A, 12B) and the output web (18A, 18B);
at least one phase washer (44) that is mounted rotatably around the axis (B) of the transmission shaft and is interposed circumferentially between the two elastic members (42) of said pair,
two output webs (18A, 18B) that are arranged axially on either side of each input washer (12A, 12B),
wherein the elastic members (42) are arranged in series on the circumference of a single circle having an axis (B).
2. The device (10) according to claim 1, wherein each input washer (12A, 12B) has a central orifice that is demarcated by an inner edge (34), the input washer (12A, 12B) being rotationally guided by sliding of its inner edge (34) on a cylindrical guidance face (36) that is rotationally integral with the central hub (20).
3. The device (10) according to claim 2, wherein the cylindrical guidance face (36) is implemented integrally with the central hub (20).
4. The device (10) according to claim 2, wherein the guidance face (36) has at least two radial stop faces (60, 62), each of which is capable of interacting with an associated radial stop face (69, 71) that extends from the inner edge (34) of the input washer (12A, 12B) in order to limit, in both directions, the rotation of the input washer (12A, 12B) with respect to the output web (18A, 18B).
5. The device (10) according to claim 1, wherein the phase washer (44) has a central orifice that is demarcated by an inner edge (46), the phase washer (44) being rotationally guided by sliding of its inner edge (46) on a cylindrical guidance face (36) that is rotationally integral with the central hub (20).
6. The device (10) according to claim 5 taken in combination with any one of claims 2 to 4, wherein the phase washer (44) and each input washer (12A, 12B) are rotationally guided by a common guidance face (36) that is integral with the central hub (20).
7. The device (10) according to claim 5, wherein the guidance face (36) has at least two radial stop faces (60, 62), each of which is capable of interacting with an associated radial stop face (72, 74) that extends from the inner edge (46) of the phase washer (44) in order to limit, in both directions, the rotation of the phase washer (44) with respect to the output web (18A, 18B).
8. The device (10) according to claim 7, wherein the two radial stop faces (60, 62) of the guidance face (36) are common to the phase washer (44) and to each input washer (12A, 12B).
9. The device (10) according to claim 8, wherein the two output webs (18A, 18B) are arranged axially on either side of each phase washer (44).
10. A pendulum-type damping device intended to be part of the torsion damping device according to claim 1, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
11. The device (10) according to claim 3, wherein the guidance face (36) has at least two radial stop faces (60, 62), each of which is capable of interacting with an associated radial stop face (69, 71) that extends from the inner edge (34) of the input washer (12A, 12B) in order to limit, in both directions, the rotation of the input washer (12A, 12B) with respect to the output web (18A, 18B).
12. The device (10) according to claim 2, wherein the phase washer (44) has a central orifice that is demarcated by an inner edge (46), the phase washer (44) being rotationally guided by sliding of its inner edge (46) on a cylindrical guidance face (36) that is rotationally integral with the central hub (20).
13. The device (10) according to claim 3, wherein the phase washer (44) has a central orifice that is demarcated by an inner edge (46), the phase washer (44) being rotationally guided by sliding of its inner edge (46) on a cylindrical guidance face (36) that is rotationally integral with the central hub (20).
14. The device (10) according to claim 4, wherein the phase washer (44) has a central orifice that is demarcated by an inner edge (46), the phase washer (44) being rotationally guided by sliding of its inner edge (46) on a cylindrical guidance face (36) that is rotationally integral with the central hub (20).
15. The device (10) according to claim 6, wherein the guidance face (36) has at least two radial stop faces (60, 62), each of which is capable of interacting with an associated radial stop face (72, 74) that extends from the inner edge (46) of the phase washer (44) in order to limit, in both directions, the rotation of the phase washer (44) with respect to the output web (18A, 18B).)
16. A pendulum-type damping device intended to be part of the torsion damping device according to claim 2, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
17. A pendulum-type damping device intended to be part of the torsion damping device according to claim 3, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
18. A pendulum-type damping device intended to be part of the torsion damping device according to claim 4, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
19. A pendulum-type damping device intended to be part of the torsion damping device according to claim 5, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
20. A pendulum-type damping device intended to be part of the torsion damping device according to claim 6, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
21. A pendulum-type damping device intended to be part of the torsion damping device according to claim 7, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
22. A pendulum-type damping device intended to be part of the torsion damping device according to claim 8, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).
23. A pendulum-type damping device intended to be part of the torsion damping device according to claim 9, wherein it has at least one pair of pendulum flyweights mounted oscillatingly in a radial plane on a peripheral ring of the phase washer (44).