A low power lens used in a microscope to optimize illumination. The Bertrand lens is placed in the body tube between the objective and the eyepiece to provide an image of the back focal plane of the objective.
Synonyms and Related Terms
- ASTM, 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, Walter C. McCrone, John Gustave Delly, The Particle Atlas, W. McCrone Associates, Chicago, IV, 1972