G
PHYSICS
G
PHYSICS
G02
OPTICS
G02
OPTICS
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B1/00
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
G02B1/00
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
G02B1/04
made of organic materials, e.g. plastics
G02B1/04
made of organic materials, e.g. plastics