MEASURING METHOD FOR IMMUNOCHROMATOGRAPHIC TEST STRIP

摘要

A measuring device 1 comprises an irradiation optical system 20 and a detection optical system 30. The irradiation optical system 20 comprises a light-emitting element 21 and a mixing rod 22. The detection optical system 30 comprises a convex lens 33 and a CCD image sensor 36. Light from the light-emitting element 21 is diffused by a diffusing plate 23 and enters into a mixing rod 22, where it is mixed. The light mixed inside the mixing rod 22 is then diffused by a diffusing plate 24 and irradiated onto an immunochromatography test piece 10 as measurement light. The light transmitted by the immunochromatography test piece 10 is formed as an image on the light receiving face 37 of a CCD image sensor 36, by means of the convex lens 33. The CCD image sensor 36 captures the image formed by the convex lens 33 at the light receiving face 37.