APPARATUS FOR DETERMINING LIGHT POWER LEVEL, MICROSCOPE, AND METHOD FOR MICROSCOPY

摘要

PROBLEM TO BE SOLVED: To provide an apparatus for determining a light power level by a sufficiently precise and reproducible method. SOLUTION: The apparatus for determining the light power level of a light beam (7) has a beamsplitter (1) and a detector (11) associated with the beamsplitter (1). The apparatus is characterized in that the beamsplitter (1) splits measuring light (23) from the light beam and conveys it to the detector (11), and that the ratio between the light power level of the light beam (7) and the light power level of the measuring light (23) measured at the detector (11) is constant over time.