Physics:Ocular micrometer

From HandWiki
Short description: Device used to measure size of microscopic objects

An Ocular micrometer
Microscopic Field showing an Ocular Micrometer scale
Stage Micrometer used in microscopic calibration
Ocular micrometer
Micrometer Eyepiece
Stage micrometer divisions as seen under microscope. It is used to calibrate the ocular micrometer. Smallest division = 0.01mm or 10 microns.

An ocular micrometer or eyepiece micrometer is a glass disk, engraved with a ruled scale, that fits in an eyepiece of a microscope,[1][2] which is used to measure the size of microscopic objects through magnification under a microscope. When the eyepiece micrometer is calibrated using a stage micrometer, the length of the divisions on the scale depends on the degree of magnification.[3]

See also

References