A lens specifying device comprising a light source (21) which projects measuring light onto a lens (30) to be tested, an area CCD (35) image reception unit which receives the measuring light transmitted through the lens (30), a filter disc (64) which is provided in an intermediate portion of the light path between the light source (21) and the area CCD (35) as a means for measuring the spectral transmission and a processing circuit (37) which finds the refraction characteristics and spectral transmission of the lens (30) from the output of the area CCD (35) and displays the results on a monitor (3).
