Patent ID: 11873970
Assignee: USAI, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A low-profile recessed light fixture adapted to be installed in a horizontal ceiling and configured to emit light through an opening in the ceiling into a room therebelow, the recessed light fixture comprising:
a housing having a horizontal longitudinal axis (X-axis) and a horizontal lateral axis (Y-axis) perpendicular to the longitudinal axis (X-axis), and having a vertical axis (Z-axis), and the housing having a low-profile height dimension parallel to the vertical axis (Z-axis);
the housing forming a light engine enclosure having an aperture;
a lighting driver configured to be disposed within a driver enclosure;
a light engine assembly disposed within the light engine enclosure, the light engine assembly having a heat sink assembly and a light emitting element, and the light emitting element having an optical axis;
the heat sink assembly including first and second heat sinks, the light emitting element being mounted to the first heat sink and the first heat sink being movably mounted to the second heat sink;
the first heat sink being operable to tilt relative to the second heat sink about a tilt axis parallel to the lateral axis (Y-axis) through a tilt range from a zero tilt position wherein the optical axis of the light emitting element is substantially parallel to the vertical axis (Z-axis), to a wall wash tilt position wherein the optical axis is aligned at a substantial angle relative the vertical axis (Z-axis);
when the light engine assembly is in the zero tilt position, the optical axis of the light emitting element being substantially parallel to the vertical axis (Z-axis) and substantially passing through a center of the aperture;
the light engine assembly being operable to emit light through the aperture throughout the rotation range and tilt range; and
the first heat sink maintains a substantially constant thermal connection pressure with the second heat sink in all tilt positions and during movement between tilt positions.