Abstract: A table lamp comprises a base and an elongate head. The head has two elongate LED arrangements each extending along the length direction of the elongate head, each LED arrangement providing a light output pattern which is asymmetric and is generally directed to a respective lateral side of the elongate head. A beam-shaping lens structure is associated with the two LED arrangements. Each LED arrangement is independently controlled. Thus, separate LED arrangements are provided, one for left-handed use and one for right-handed use. This avoids the need for reconfiguration between left-handed and right-handed operation, and the lamp design is able to meet requirements of glare control, light uniformity, and blue light hazard control.

Abstract: A table lamp comprises a base and an elongate head. The head has two elongate LED arrangements each extending along the length direction of the elongate head, each LED arrangement providing a light output pattern which is asymmetric and is generally directed to a respective lateral side of the elongate head. A beam-shaping lens structure is associated with the two LED arrangements. Each LED arrangement is independently controlled. Thus, separate LED arrangements are provided, one for left-handed use and one for right-handed use. This avoids the need for reconfiguration between left-handed and right-handed operation, and the lamp design is able to meet requirements of glare control, light uniformity, and blue light hazard control.

Abstract: A table lamp has a lighting head with an asymmetrical light output. The lighting head is reversibly mountable to a support structure, so that the light output can be adapted to be optimized for positioning on either side (left or right) of a table.

Abstract: A table lamp has a lighting head with an asymmetrical light output. The lighting head is reversibly mountable to a support structure, so that the light output can be adapted to be optimised for positioning on either side (left or right) of a table.

Abstract: A lens (100) is disclosed for a solid state lighting element (24). The lens comprises at least one light entry surface (110, 112) and a light exit surface (120) opposite the at least one light entry surface, the light exit surface comprising a regular pattern of microstructures (122) and a plurality of regular patterns of further microstructures (124), wherein each regular pattern of further microstructures is on a respective one of said microstructures. Such a lens (100) may achieve excellent colour mixing. A lighting device (10) including such a lens and a luminaire including such a lighting device (10) are also disclosed.