devicefor the production of at least one pulsed light in at least oneoptical fiber or in at least one lichtwellenleiterb & professional; trade, itcharacterized that at least a first of the at least onea light source (11) comprises optical fibre (5, 6) or at leasta first of the at least one light source (11) gespeistes lichtwellenleiterb & professional; trade inthe device (1) is arranged such that the light from thethe end of the at least one first lichtwellenleiters (5, 6) orthe end of the at least one lichtwellenleiterb & t.; ndels exit that the endthe at least one first lichtwellenleiters (5, 6), or the endthe at least one lichtwellenleiterb & t.; ndels beabstandet against berliegend and professional;at least one end of a second lichtwellenleiters (8, 9), orthe second lichtwellenleiterb & t.; ndelsis arranged, and that between the end of the at least onefirst lichtwellenleiters (5, 6), or the end of the at least onefirst lichtwellenleiterb & t.; ndelsand the end of the at least one second lichtwellenleiters (8, 9)or the end of the at least one second lichtwellenleiterb & professional ndels at least;a movable diaphragm (12) is arranged in.
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