Photometer for examining a trial item introduces the trial item into a working beam path having a storage device for holding optical elements.

摘要

A photometer (1) has a casing (2) and working beam path (4). Working beams run from left to right. From a point (6) in a light source a working beam runs through a preliminary filter (8), is focused by a lens (10) on a point (12) at the centre of a measuring optical cell and passes through filters (14) serving as an optical element after passing through the measuring optical cell.