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Light-Gathering Power

Published 14.11.2010 Presenter Anton Stepanov
Tags: lens, light, optics

Light-Gathering Power

Light-gathering power of an optical device is the ratio of the image illumination generated by the given system to the brightness of the rendered object. If we assume in a particular case that object brightness is a constant value then the object’s illuminance will be a parameter which determines light-gathering power of the optical system ...