Lighting device and lighting apparatus

The utility model relates to a lighting device and a lighting apparatus. The lens plate has an array of lenslets. The first surface includes a plurality of individual cells, each cell defining one side of a respective lenslet of the array. The second opposing surface includes a set of grooves, each groove defining a second opposing side of a sub-array of lenslets of the array of lenslets. The array of lenslets is a circular array comprising a plurality of concentric rings. Each ring comprises a plurality of straight sections, and each section comprises a plurality of said lenslets arranged in a row. Thus, the lens plate design combines a recess covering the plurality of lenslets on one side and a unit lens structure on the opposite side. The lighting device and the lighting apparatus according to the present disclosure enable flexible selection of the amount of LEDs used with the lens plate. 本公开涉及照明装置和照明设备。透镜板具有小透镜的阵列。第一表面包括多个单独的单元，每个单元限定阵列的相应小透镜的一侧。第二相对表面包括一组凹槽，每个凹槽限定小透镜的阵列的小透镜的子阵列的第二相对侧。小透镜的阵列为包括多个同心环的圆形阵列。