Subcutaneous vessel representation device for contactless location of warm skin region on surface, measures/compares temperature of larger measuring range and smaller measuring range enclosed by larger measuring range in circular form

摘要

The device has two infrared temperature sensors (1,2) which measure temperature of two different large ranges on surface (4) in contactless manner. The temperatures of two different large ranges are compared. One of the range is a smaller ideally punctiform measuring range which is enclosed by larger measuring range in circular form.