| 摘要 |
A recessed lighting optical holder for a recessed lighting fixture, comprises a retainer 100 having a generally annular shape, including a resilient snap projection 105 formed on an inner circumference and resilient beam 130 supported at both ends on an outer circumference. The beam slides into engagement with a heat sink extension 122 on a bottom portion of a circular heat sink 110, when a top surface of the retainer is positioned against a bottom portion of the heat sink and the retainer is rotated with respect to the heat sink, to lock the retainer to the heat sink. An optic 120 has a generally conical shape, with a bottom portion surrounded by circular lip 125 that snaps into holding engagement with the snap of the retainer, to positively retain the optic. The holder is relatively simple to manufacture and is conveniently accessible for installation and occasional maintenance or replacement. |
| 主权项 |
1. A recessed lighting optical holder, comprising:
a retainer having a generally annular shape, with an outer circumferential surface, an inner circumferential surface, a top surface, and a bottom surface, the retainer including a resilient snap projection formed on the inner circumferential surface of the retainer and a resilient beam supported at both ends on the outer circumferential surface of the retainer, the resilient beam being generally shaped as a circular segment that is substantially parallel with the top surface of the retainer, the resilient beam being configured to slide into engagement with a heat sink extension on a bottom portion of a circular heat sink, when the top surface of the retainer is positioned against the bottom portion of the circular heat sink and the retainer is rotated with respect to the heat sink, the resilient beam being configured to be deflected by the heat sink extension as the retainer is rotated, to lock the retainer to the heat sink; and an optic having a generally conical shape, with a narrower top portion and a broader bottom portion, having a circular lip surrounding the bottom portion, the circular lip being configured to snap into holding engagement with the resilient snap projection formed on the inner circumferential surface of the retainer. |
