title: The production and calibration of Foucault test objects of various contrasts.
authors.forename: H S
authors.initials: HS
authors.lastname: COLEMAN
authors.forename: D G
authors.initials: DG
authors.lastname: CLARK
mesh_terms: D002138:Calibration; D003287:Contrast Media; D014787:Vision Tests
chemical_list: D003287:Contrast Media
keywords: FOUCAULT TEST; VISION/tests