54 results about "Task lighting" patented technology

An illuminating device coupled with sensors or an image acquisition device and a logical controller allows illumination intensity and spectrum to be varied according to changing user needs. The system provides illumination to areas according to the principles of correct lighting practice for the optimal performance of visual tasks in the most efficient, cost effective manner. Aspects of the invention include: lighting fixtures which adapt to ambient lighting, movement, visual tasks being performed, and environmental and personal conditions affecting illumination requirements at any given instant. Lighting fixtures have spatial distribution of spectrum and intensity, providing both “background” room lighting, and “task” lighting.

A lighting assembly (10) is adjustable between flood and spot lighting conditions for selectively illuminating an interior passenger compartment in a motor vehicle. The assembly (10) includes a housing (16) which clamps to a supporting member, such as a headliner (12), via a sleeve (18) interacting with a rotary cam lock (22). An LED light source (26) is orbitally supported within the housing (16) for projecting light in a directionally adjustable manner. A lens (50) is disposed in the light path (28) and is moveable between an extended spot position for task lighting and a retracted flood position for general illumination within the interior compartment. A switch (74) is responsive to movement of the lens (50) into its spot position for automatically energizing the LED (30). The switch (74) opens, thus de-energizing the LED (30) when the lens (50) is returned to its flood condition. A lighting control circuit (78, 78′) is responsive to an override signal, such as from a door switch (80, 80′), for independently activating the light source (26) when the lens (50) is in its flood position. The light source (26) is supported for orbital movement within the housing (16) by a gimbal mechanism which includes an inner gimbal (38) carried in a cross (40). Pintals (42, 44) establish intersecting perpendicular axis (A,B) to accomplish the orbital movement. A latch mechanism (64) cooperates with leaf springs (62) by controlling movement of the lens (50) between its flood and spot conditions by a repeated push impulse applied by the finger of an operator. The switch (74) is incorporated into the leaf springs (62).

A luminaire comprises a first lighting module for providing a first lighting effect such as task lighting. The first lighting module has a front light exit face and a support structure with a rear reflective portion. A second lighting module is for providing a second lighting effect such as decorative lighting, directed to the reflective portion of the support structure. The luminaire is capable of producing the two different lighting effects in different directions.

Embodiments relate to a lighting device that includes or retains a plurality of solid-state light emitters and is capable of providing one or more of omni-directional lighting and task lighting. Other embodiments relate to modular lighting systems for providing the same.