GSektion G — PhysikPHYSICS
disable hierarchy mode: G02Link to definition of IPC symbol: G02G02OptikOPTICS
disable hierarchy mode: G02BLink to definition of IPC symbol: G02BG02BOptische Elemente, Systeme oder Geräte [1, 7]OPTICAL ELEMENTS, SYSTEMS OR APPARATUS  [1, 7]
disable hierarchy mode: G02B 21/00Link to definition of IPC symbol: G02B 21/00Link to Depatisnet beginner's search with IPC symbol: G02B 21/00G02B 21/00Mikroskope [1, 7, 2006.01]Microscopes [1, 7, 2006.01]
disable hierarchy mode: G02B 21/06Link to Depatisnet beginner's search with IPC symbol: G02B 21/06G02B 21/06
. Einrichtungen zum Beleuchten von Objekten [1, 2006.01]
. Means for illuminating specimen [1, 2006.01]
disable hierarchy mode: G02B 21/08Link to Depatisnet beginner's search with IPC symbol: G02B 21/08G02B 21/08
. . Kondensoren [1, 2006.01]
. . Condensers [1, 2006.01]
disable hierarchy mode: G02B 21/10Link to Depatisnet beginner's search with IPC symbol: G02B 21/10G02B 21/10
. . . für Dunkelfeldbeleuchtung (G02B 21/14 hat Vorrang) [1, 2006.01]
. . . affording dark-field illumination (G02B 21/14 takes precedence) [1, 2006.01]