| G02B9/00 | Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – (G02B 13/00, G02B 15/00 take precedence) |
|
Note(s) In this group, a component is deemed to be a simple lens or a compound lens or a divided lens equivalent to a simple or to a compound lens. |
Descriptions for G02B9/00 and notes/indexes are displayed on this screen.