SLP (SELFOC LENS PLATE) is a lens that arranges SML (SELFOC MICRO LENS) in a two-dimensional plane. While the SLA (SELFOC LENS ARRAY), which arranges SML in a one-dimensional line, is used for handling linear images, the SLP can handle area images. The features of SLP include "compactness," "the ability to use without closely attaching the subject to the sensor," and "high resolution." When used in visual inspection equipment, it can contribute to making the equipment more compact and improving the flexibility of installation.