Immersion objective

Description

A microscope objective that uses a liquid in the space between the objective and the sample instead of air. The liquid, when it has a refractive index greater than 1, provides an increased numerical aperture and thus better resolution.

Synonyms and Related Terms

Immersionsobjektiv (Deut.); objectif à immersion (Fr.);

Sources Checked for Data in Record

• ASTM, Standard Terminology of Microscopy, Annual Book of ASTM Standards, Section 14, General Methods and Instrumentation, ASTM, E175, 75-78, May 1982

• Walter C. McCrone, John Gustave Delly, The Particle Atlas, W. McCrone Associates, Chicago, IV, 1972