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

Claim 0:
1. 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 and forming a driver enclosure spaced from the aperture parallel to the longitudinal axis (X-axis);
a lighting driver configured to be disposed within the 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);
the light engine assembly being operable to move horizontally parallel to the longitudinal axis (X-axis) relative to the housing between an operation position wherein the light engine assembly is at a first distance from the driver enclosure, and a service position wherein the light engine assembly is at a second distance from the driver enclosure greater than the first distance;
when the light engine assembly is in the operation position and the first heat sink 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, and when the light engine assembly is in the service position and the first heat sink is in the zero tilt position, the optical axis of the light emitting element being substantially parallel to the vertical axis (Z-axis) and being substantially offset from the center of the aperture;
the light engine assembly being operable to rotate relative to the housing about a rotation axis parallel to the vertical axis (Z-axis) when in the operation position through a rotation range of at least 360 degrees including a zero rotation position;
in the operation position, the light engine assembly being operable to emit light through the aperture throughout the rotation range and tilt range; and
the lighting driver being insertable into and removable from the driver enclosure, through the aperture, when the light engine assembly is in the service position.