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QB NIR Cut-off Filter Glass

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QB NIR cut-off filter glass has strong absorption ability in the near infrared region, which can significantly improve the problems of ghost image, veiling glare and color bias in imaging, and it is widely used in mobile filter (IRCF) and low pass filter (OLPF). The company offers QB NIR cut-off filter glass such as QB5 series, QB6 series and QB7 series, which can meet different infrared suppression requirements.

The company provides filters with different specifications for IRCF and OLPF. The main dimensions of OLPF are 41mm×37mm×0.8mm, 28mm×22mm×0.4mm, 16.8mm×12.7mm×0.3mm. The main dimensions of IRCF are 77mm×77mm×0.21mm, 55mm×42mm×0.145mm, and it can be customized according to customer requirements.

Blue glass light splitting with 50% wavelengths

Material system	Material	Item	Thickness splitting relationship before coating （Spectral Line Half-width after coating = The following value +5 or 6）
Fluorophosphate glass （Visible light enhancement）	QB50A	Thickness mm	0.5	0.54	0.56	0.59	0.6	0.65	0.7	0.73	0.76	0.8	0.85	0.9	0.95	1	1.1
	QB50A	50% splits nm	655	651	649	645	644	641	637	635	633	631	628	625	623	620	617
	QB52	Thickness mm	0.3	0.4	0.45	0.5	0.54	0.56	0.59	0.6	0.65	0.7	0.75	0.8	0.85	0.9	0.95
	QB52	50% splits nm	658	642	636	631	627	625	623	622	619	615	612	610	607	605	603
	QB53	Thickness mm	0.2	0.21	0.25	0.27	0.3	0.32	0.35	0.4	0.45	0.5	0.55	0.6	0.65	0.7	0.75
	QB53	50% splits nm	669	666	655	650	644	641	636	629	624	619	615	611	608	605	603
	QB54	Thickness mm	0.19	0.2	0.21	0.23	0.25	0.28	0.3	0.32	0.35	0.37	0.4	0.42	0.45	0.59	0.6
	QB54	50% splits nm	658	655	652	647	642	636	633	629	625	622	619	617	614	602	601
	QB55	Thickness mm	0.17	0.18	0.19	0.2	0.21	0.22	0.23	0.3	0.32	0.35	0.37	0.4	0.42	0.45	0.47
	QB55	50% splits nm	653	649	646	644	641	638	636	623	620	617	614	611	609	606	604
	QB56	Thickness mm	0.17	0.18	0.19	0.2	0.21	0.22	0.23	0.27	0.3	0.32	0.35	0.37	0.4	0.45	0.5
	QB56	50% splits nm	645	642	638	636	634	631	629	621	617	614	610	608	605	600	596
	QB58	Thickness mm	0.17	0.18	0.19	0.2	0.21	0.25	0.27	0.3	0.32	0.35	0.37	0.4	0.42	0.45	0.47
	QB58	50% splits nm	633	630	627	625	623	615	612	608	605	602	600	597	595	593	591
Fluorophosphate glass （Infrared suppression enhancement）	QB62	Thickness mm	0.3	0.4	0.45	0.5	0.54	0.56	0.59	0.6	0.65	0.7	0.75	0.8	0.85	0.9	0.95
	QB62	50% splits nm	658	642	636	631	627	625	623	622	619	615	612	610	607	605	603
	QB63	Thickness mm	0.2	0.21	0.25	0.27	0.3	0.32	0.35	0.4	0.45	0.5	0.55	0.6	0.65	0.7	0.75
	QB63	50% splits nm	667	665	654	649	644	641	636	629	624	619	615	611	609	606	604
	QB64	Thickness mm	0.19	0.2	0.21	0.23	0.25	0.28	0.3	0.32	0.35	0.37	0.4	0.42	0.45	0.59	0.6
	QB64	50% splits nm	656	653	651	546	641	635	632	629	625	622	619	617	614	603	602
	QB65	Thickness mm	0.17	0.18	0.19	0.2	0.21	0.22	0.23	0.3	0.32	0.35	0.37	0.4	0.42	0.45	0.47
	QB65	50% splits nm	652	648	645	644	641	638	636	623	620	617	614	611	609	607	605
Phosphate glass （Strength enhancement）	QB75	Thickness mm	0.17	0.18	0.19	0.2	0.21	0.22	0.23	0.3	0.32	0.35	0.37	0.4	0.42	0.45	0.47
	QB75	50% splits nm	654	650	647	644	641	638	635	622	619	616	613	610	608	605	603
	QB76	Thickness mm	0.17	0.18	0.19	0.2	0.21	0.22	0.23	0.27	0.3	0.32	0.35	0.37	0.4	0.45	0.5
	QB76	50% splits nm	646	643	639	636	634	631	628	620	618	615	609	607	604	599	595

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