代理人：
VAN EEUWIJK, ALEXANDER, HENRICUS, WALTERUS ET AL.
摘要：
Implementations are described for adjustable recessed lighting apparatus (100) with obliquely-angled heat sink assemblies (121). In various embodiments, a housing (102) may be pivotally mounted to a base structure (106, 108, 104). An optical cup (112) may be fixedly contained within the housing and luminously coupled with light source(s) at a first end (114) of the optical cup. The optical cup may include optical element(s) configured to direct light emitted by the light source(s) from the first end of the optical cup towards a second end (116) of the optical cup along a central axis (CA) of the optical cup. A heat sink assembly (121) may be thermally coupled with the light source(s). The heat sink assembly may extend away from the first and second ends of the optical cup at an oblique angle (α) relative to the central axis of the optical cup.
权利要求：
CLAIMS:
1. An adjustable recessed lighting apparatus (100) comprising:
a housing (102) that is pivotally mounted to a base structure (106, 108);
a heat sink assembly (121) coupled to the housing (102), wherein the heat sink assembly pivots in conjunction with the housing;
at least one light emitting diode (“LED”) (118) mounted to a front side of a substrate (120) and thermally coupled to the heat sink assembly (121);
an optical cup (112) fixedly contained within the housing and luminously coupled with the at least one LED at a first end (114) of the optical cup, wherein the optical cup includes one or more optical elements configured to direct at least some light emitted by the at least one LED from the first end of the optical cup towards a second end (116) of the optical cup along a central axis (CA) of the optical cup; and wherein the heat sink assembly includes a plurality of parallel fins (122) that extend away from the first and second ends of the optical cup at an oblique angle (a) relative to the central axis of the optical cup.
2. The adjustable recessed lighting apparatus of claim 1, wherein the base structure comprises a first ring (106) that is rotatably mounted to a second ring (108), and wherein rotation of the first ring rotates the housing about an axis of rotation of the first ring.
3. The adjustable recessed lighting apparatus of claim 2, wherein the housing is pivotally mounted to the first ring via a hinge (126).
4. The adjustable recessed lighting apparatus of claim 1, wherein the oblique angle is between 20° and 25°.
5. The adjustable recessed lighting apparatus of claim 4, wherein the oblique angle is approximately 22.5°.
6. The adjustable recessed lighting apparatus of claim 1, wherein the housing includes a lateral surface (124) extending across the housing orthogonal to the central axis of the optical cup, wherein the first end of the optical cup is mounted on a first side (125) of the lateral surface.
7. The adjustable recessed lighting apparatus of claim 6, wherein the plurality of fins extend from a second side (123) of the lateral surface.
8. The adjustable recessed lighting apparatus of claim 7, wherein the plurality of fins extend obliquely from the second side of the lateral surface.
9. The adjustable recessed lighting apparatus of claim 8, wherein the plurality of fins and the housing form a unitary component, and the plurality of fins protrude obliquely from the second side of the lateral surface.
10. The adjustable recessed lighting apparatus of claim 7, wherein the housing includes six exterior surfaces (l30a-f) such that the housing has a side profile with a substantially hexagonal shape.
11. The adjustable recessed lighting apparatus of claim 10, wherein the lateral surface extends between a point along one of the six side surfaces to an intersection between two others of the six side surfaces.
12. The adjustable recessed lighting apparatus of claim 7, wherein the plurality of fins extend parallel to a diameter (D) of the substantially hexagonal shape, and the central axis of the optical cup is oblique to the diameter of the substantially hexagonal shape.
13. The adjustable recessed lighting apparatus of claim 1, wherein the housing (102) is pivotally and rotatably mounted to the base structure ( 106, 108).
14. The adjustable recessed lighting apparatus of claim 13, wherein the housing includes a lateral surface (124) extending across the housing orthogonal to the central axis of the optical cup, wherein the first end of the optical cup is mounted on a first side (125) of the
lateral surface, and wherein the plurality of fins extend from a second side (123) of the lateral surface.