stage micrometer
A microscope calibration slide with a precise scale etched on it, used to calibrate eyepiece reticles. Technical term in microscopy.
See also: 接眼ミクロメーター
Calibrate the eyepiece micrometer scale using a stage micrometer.
Compound of 対物 (たいぶつ, 'objective', referring to the objective lens) and ミクロメーター (from English 'micrometer').