Narrow band light absorbing filter

Details Narrow band light absorbing filter Narrow band light absorbing filter

F - Mech Eng,Light,Heat,Weapons

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F21V 9/06 (2006.01) C08K 5/00 (2006.01) C08L 61/06 (2006.01) G02B 5/22 (2006.01) C08L 29/14 (2006.01)

Patent

CA 1243524

-1- NARROW BAND LIGHT ABSORBING FILTER Abstract An optical transmission radiation filter absorbing between 320 and 500 nm comprises a polymeric film having a benzylidene or naphthalimide dye in combination with a phenol-formaldehyde resin which shifts the absorbing wavelength of the dyes.

452606

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