Mirror arrangement for a beam path of one another in many - reflection mes cell

摘要

the reflecting a beam in a large reflexionszelle for measuring absorption of light in a meu00dfgas, in which an inlet opening on a eintrittsaperturspiegel, a feldspiegel and austrittsaperturspiegel on an outlet structure wi rd, should be improved so that the astigmatischen faults to be reduced considerably.it is envisaged that the form of the aperturspiegel approximately by a ellipsoiden is formed, with the brennpunktabstand is approximately equal to the half the distance between the inlet opening and outlet.