finite intermediate image distance objective

Objective lens that forms an image of the object at a finite distance, as opposed to an infinity-corrected objective, where light emerges collimated from the objective and requires an additional tube lens to form the image.

Synonyms: fixed focal length objective

See also: objective lens , fixed tube length system , infinity optical system

Learn more:

Infinity Optical Systems

These microscopes feature a parallel optical path between the objective and the tube lens.