G
PHYSICS
G
PHYSICS
G02
OPTICS
G02
OPTICS
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B5/00
Optical elements other than lenses
G02B5/00
Optical elements other than lenses
G02B5/20
Filters
G02B5/20
Filters
G02B5/208
for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
G02B5/208
for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation