EntityQ1362583· pop 10· linked from 6 articlesSiemens starSign in to saveA device used to test the resolution of optical instruments, printers or displays.ConnectionsopticsEntityprinterEntitycameraEntitydigital object identifierEntityflag of JapanEntitySiemensEntitydigital cameraEntityQ180686Entityflag of JordanEntityRussian Air ForceEntityQ229883Entityvector graphicsEntityfocusEntitydisplay deviceEntityoptical instrumentEntitycollimatorEntitydots per inchEntityaliasingEntitySecchi diskEntityoptical resolutionEntityCategoriesOptical illusionsVisual perception