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NBP 405-15 HT 
Narrow Bandpass Filter


Key features

  • Average transmittance 90%
  • Steep slopes
  • Wavelength tolerance +/- 3nm
  • Deep blocking / High optical density
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Schneider-Kreuznach Narrow Bandpass Filter NBP 405-15 HT

Schneider-Kreuznach Narrow Bandpass Filters are designed for applications requiring precise wavelength selection, such as laser systems, 3D measurement, and metrology. With steep slopes, high transmission (up to 90%), and deep blocking outside the passband, these filters ensure accurate results in demanding environments. 

The Schneider-Kreuznach NBP 405-15 HT magnetron sputtered industrial Narrow Bandpass Filter features steep slopes for sophisticated applications that require a sharp transition between high transmission and deep blocking at stable cut-on and cut-off wavelengths. The layers are applied by means of magnetron sputtering, a special coating process. Schneider-Kreuznach narrow bandpass filters are RoHS conform. Custom sizes are available on request.

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Datasheet
Transmission
Product sheet
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Product brochure 2024
Product brochure 2025

Technical specifications: NBP 405-15 HT Narrow Bandpass Filter

TypeOn request
Wavelength range, 50%-50%398-412 nm
Center Wavelength405 nm
Bandwidth15 nm
Angle of incident0° +/- 8°
Central Wavelength (CWL)405 +/- 3nm
Full Width at Half Maximum (FWHM)14 +/- 1nm
Transmittance403 - 407 nm: Tabs > 80%
Blocking< 395 nm: Tabs < 0.5%
425 - 1000 nm: Tabs < 0.5%
Wavefront distortionØ >18 - 30 mm: 13/ 1(0.25) | Ø >30 - 50 mm: 13/ 1(0.30)
Parallelism1'
Glass thickness tolerance+/- 0.08mm

Filter specifications glossary

 

Specification Description
Angle of incidence (AOI) Angle between a ray of light and the surface normal to the surface it strikes
Cut-on wavelength Wavelength at which the transmission of the lower edge rises to 50%
Cut-off wavelength Wavelength at which the transmission of hhe upper edge drops to 50%
Central Wavelength (CWL) Center of the filter’s passband for which it is primarily designed
Full Width at Half Maximum (FWHM) Spectral bandwidth measured at 50% of the peak transmittance
Transmittance Ratio of transmitted light intensity to incident light intensity
Blocking Strong attenuation of light intensity over a specified wavelength range
Wavefront distortion Deviation of the transmitted wavefront from a reference plane
Parallelism Angular deviation between the two main surfaces of the filter
Glass thickness tolerance Permissible deviation from the specified substrate thickness
Wavelength range Spectral region over which the filter is designed to operate
Coating Applied layer(s) defining the filter’s spectral characteristics
Temperature range Recommended operational limits for ambient or device temperature
Glass thickness Nominal thickness of the filter glass
Optical density Attenuation measure defined as −log₁₀ of transmittance
Transmittance average Average light transmission across the specified wavelength range
Wavelength Wavelength range at which the polarizer specification applies
Transmittance, unpolarized light Ratio of transmitted to incident intensity for unpolarized light
Extinction ratio Ratio of transmitted intensity along the polarizer’s pass axis to that along its block axis
Max. size Largest standard dimension for the polarizer film
Temperature range Minimum to maximum temperature for reliable performance
Substrate Base material on which the polarizing film is applied
Thickness Nominal overall thickness of the polarizer film
Info Unless otherwise stated, all dimensions in this data sheet are in mm

 

Picture of the filter

Schneider-Kreuznach Narrow Bandpass Filter NBP 405-15 HT



Transmission of the NBP 405-15 HT Filter

 

Transmission Data

 

Download Excel

Wavelength (nm) Transmission (%)
350 0.00
351 0.00
352 0.01
353 0.01
354 0.01
355 0.00
356 0.00
357 0.00
358 0.00
359 0.00
360 0.01
361 0.01
362 0.01
363 0.00
364 0.00
365 0.00
366 0.01
367 0.00
368 0.00
369 0.01
370 0.01
371 0.01
372 0.00
373 0.00
374 0.00
375 0.00
376 0.00
377 0.01
378 0.01
379 0.00
380 -0.01
381 0.00
382 0.00
383 -0.01
384 0.00
385 0.02
386 0.03
387 0.03
388 0.03
389 0.03
390 0.03
391 0.04
392 0.05
393 0.08
394 0.13
395 0.32
396 0.86
397 3.11
398 12.71
399 39.96
400 73.93
401 89.40
402 92.60
403 93.34
404 93.25
405 93.09
406 93.29
407 93.58
408 93.81
409 93.98
410 93.93
411 93.03
412 87.11
413 65.75
414 34.36
415 12.78
416 4.00
417 1.48
418 0.59
419 0.28
420 0.15
421 0.09
422 0.06
423 0.04
424 0.04
425 0.03
426 0.03
427 0.02
428 0.02
429 0.01
430 0.01
431 0.01
432 0.02
433 0.01
434 0.01
435 0.01
436 0.01
437 0.01
438 0.01
439 0.00
440 0.01
441 0.01
442 0.01
443 0.01
444 0.00
445 0.00
446 0.00
447 0.00
448 0.00
449 0.01
450 0.01
451 0.00
452 0.00
453 0.00
454 0.00
455 0.00
456 0.00
457 0.01
458 0.01
459 0.00
460 0.00
461 0.00
462 0.00
463 0.00
464 0.00
465 0.01
466 0.01
467 0.00
468 0.00
469 0.00
470 0.00
471 0.00
472 0.00
473 0.00
474 0.00
475 0.00
476 0.00
477 0.00
478 0.00
479 0.01
480 0.01
481 0.02
482 0.03
483 0.05
484 0.09
485 0.16
486 0.24
487 0.27
488 0.26
489 0.24
490 0.22
491 0.21
492 0.20
493 0.18
494 0.16
495 0.13
496 0.09
497 0.06
498 0.04
499 0.03
500 0.02
501 0.01
502 0.01
503 0.01
504 0.00
505 0.01
506 0.01
507 0.00
508 0.00
509 0.00
510 0.00
511 0.00
512 0.00
513 0.00
514 0.00
515 0.00
516 0.00
517 0.00
518 0.00
519 0.00
520 0.00
521 0.01
522 0.01
523 0.01
524 0.01
525 0.01
526 0.01
527 0.01
528 0.01
529 0.01
530 0.01
531 0.01
532 0.01
533 0.01
534 0.01
535 0.01
536 0.01
537 0.01
538 0.01
539 0.01
540 0.01
541 0.01
542 0.01
543 0.01
544 0.01
545 0.01
546 0.01
547 0.01
548 0.02
549 0.02
550 0.02
551 0.02
552 0.02
553 0.02
554 0.01
555 0.01
556 0.01
557 0.00
558 0.00
559 0.00
560 0.00
561 0.00
562 0.01
563 0.00
564 0.00
565 0.00
566 0.00
567 0.00
568 0.00
569 0.00
570 0.00
571 0.00
572 0.00
573 0.00
574 0.00
575 0.00
576 0.00
577 0.00
578 0.00
579 0.00
580 0.00
581 0.00
582 0.00
583 0.00
584 0.00
585 0.00
586 0.00
587 0.00
588 0.00
589 0.00
590 0.00
591 0.00
592 0.00
593 0.00
594 0.00
595 0.00
596 0.00
597 0.00
598 0.00
599 0.00
600 0.00
601 0.00
602 0.00
603 0.00
604 0.00
605 0.00
606 0.00
607 0.00
608 0.00
609 0.00
610 0.00
611 0.00
612 0.00
613 0.00
614 0.00
615 0.00
616 0.00
617 0.00
618 0.00
619 0.00
620 0.00
621 0.00
622 0.01
623 0.01
624 0.03
625 0.06
626 0.08
627 0.06
628 0.03
629 0.02
630 0.01
631 0.01
632 0.01
633 0.01
634 0.01
635 0.00
636 0.00
637 0.00
638 0.00
639 0.00
640 0.00
641 0.00
642 0.00
643 0.00
644 0.00
645 0.00
646 0.00
647 0.00
648 0.01
649 0.01
650 0.01
651 0.00
652 0.00
653 0.00
654 0.00
655 0.00
656 0.01
657 0.01
658 0.01
659 0.00
660 0.00
661 0.00
662 0.01
663 0.01
664 0.01
665 0.01
666 0.01
667 0.02
668 0.02
669 0.02
670 0.03
671 0.03
672 0.03
673 0.02
674 0.02
675 0.01
676 0.01
677 0.01
678 0.01
679 0.00
680 0.00
681 0.00
682 0.00
683 0.00
684 0.00
685 0.00
686 0.00
687 0.00
688 0.00
689 0.00
690 0.00
691 0.00
692 0.00
693 0.00
694 0.00
695 0.00
696 0.00
697 0.01
698 0.01
699 0.00
700 0.00
701 0.00
702 0.00
703 0.00
704 0.00
705 0.00
706 0.00
707 0.00
708 0.00
709 0.00
710 0.00
711 0.00
712 0.00
713 0.01
714 0.01
715 0.01
716 0.01
717 0.01
718 0.01
719 0.01
720 0.02
721 0.02
722 0.03
723 0.03
724 0.03
725 0.03
726 0.03
727 0.03
728 0.03
729 0.02
730 0.02
731 0.02
732 0.02
733 0.01
734 0.01
735 0.01
736 0.01
737 0.01
738 0.01
739 0.01
740 0.01
741 0.01
742 0.01
743 0.01
744 0.01
745 0.02
746 0.02
747 0.02
748 0.03
749 0.04
750 0.05
751 0.08
752 0.14
753 0.21
754 0.25
755 0.21
756 0.14
757 0.09
758 0.06
759 0.04
760 0.03
761 0.03
762 0.03
763 0.02
764 0.02
765 0.02
766 0.02
767 0.02
768 0.02
769 0.02
770 0.02
771 0.02
772 0.02
773 0.02
774 0.02
775 0.03
776 0.03
777 0.03
778 0.03
779 0.04
780 0.04
781 0.04
782 0.05
783 0.05
784 0.06
785 0.06
786 0.06
787 0.06
788 0.06
789 0.05
790 0.04
791 0.04
792 0.03
793 0.03
794 0.02
795 0.02
796 0.02
797 0.02
798 0.02
799 0.01
800 0.01
801 0.02
802 0.02
803 0.01
804 0.01
805 0.01
806 0.01
807 0.01
808 0.01
809 0.02
810 0.02
811 0.02
812 0.02
813 0.02
814 0.03
815 0.04
816 0.05
817 0.06
818 0.08
819 0.10
820 0.13
821 0.17
822 0.21
823 0.24
824 0.25
825 0.25
826 0.23
827 0.21
828 0.19
829 0.18
830 0.17
831 0.16
832 0.15
833 0.13
834 0.11
835 0.09
836 0.07
837 0.06
838 0.05
839 0.04
840 0.03
841 0.03
842 0.02
843 0.02
844 0.01
845 0.01
846 0.01
847 0.01
848 0.01
849 0.01
850 0.01
851 0.01
852 0.01
853 0.01
854 0.01
855 0.01
856 0.01
857 0.01
858 0.01
859 0.01
860 0.01
861 0.01
862 0.01
863 0.01
864 0.01
865 0.02
866 0.02
867 0.01
868 0.01
869 0.01
870 0.01
871 0.01
872 0.01
873 0.01
874 0.01
875 0.01
876 0.00
877 0.00
878 0.00
879 0.00
880 0.01
881 0.01
882 0.01
883 0.00
884 0.00
885 0.00
886 0.00
887 0.00
888 0.01
889 0.01
890 0.01
891 0.00
892 0.01
893 0.00
894 0.01
895 0.01
896 0.01
897 0.01
898 0.01
899 0.01
900 0.01
901 0.01
902 0.01
903 0.01
904 0.01
905 0.02
906 0.02
907 0.02
908 0.02
909 0.03
910 0.04
911 0.04
912 0.06
913 0.06
914 0.06
915 0.06
916 0.06
917 0.05
918 0.05
919 0.04
920 0.04
921 0.03
922 0.03
923 0.03
924 0.03
925 0.02
926 0.03
927 0.02
928 0.03
929 0.03
930 0.03
931 0.03
932 0.04
933 0.04
934 0.04
935 0.05
936 0.06
937 0.07
938 0.08
939 0.08
940 0.09
941 0.09
942 0.09
943 0.08
944 0.08
945 0.07
946 0.06
947 0.05
948 0.05
949 0.04
950 0.04
951 0.03
952 0.03
953 0.04
954 0.03
955 0.03
956 0.02
957 0.02
958 0.02
959 0.02
960 0.03
961 0.03
962 0.03
963 0.02
964 0.02
965 0.02
966 0.02
967 0.02
968 0.04
969 0.04
970 0.04
971 0.05
972 0.05
973 0.05
974 0.06
975 0.07
976 0.09
977 0.11
978 0.13
979 0.14
980 0.16
981 0.18
982 0.20
983 0.23
984 0.24
985 0.25
986 0.25
987 0.23
988 0.22
989 0.21
990 0.19
991 0.18
992 0.17
993 0.16
994 0.15
995 0.14
996 0.14
997 0.13
998 0.13
999 0.13
1000 0.13
1001 0.14
1002 0.14
1003 0.14
1004 0.15
1005 0.16
1006 0.17
1007 0.18
1008 0.20
1009 0.21
1010 0.24
1011 0.26
1012 0.29
1013 0.33
1014 0.38
1015 0.44
1016 0.51
1017 0.59
1018 0.68
1019 0.78
1020 0.88
1021 0.99
1022 1.08
1023 1.15
1024 1.21
1025 1.23
1026 1.22
1027 1.19
1028 1.15
1029 1.10
1030 1.06
1031 1.01
1032 0.98
1033 0.96
1034 0.94
1035 0.92
1036 0.91
1037 0.92
1038 0.93
1039 0.95
1040 0.98
1041 1.03
1042 1.08
1043 1.13
1044 1.20
1045 1.28
1046 1.38
1047 1.48
1048 1.59
1049 1.72
1050 1.83
1051 1.93
1052 2.01
1053 2.07
1054 2.09
1055 2.08
1056 2.04
1057 1.98
1058 1.89
1059 1.77
1060 1.66
1061 1.55
1062 1.45
1063 1.36
1064 1.29
1065 1.22
1066 1.16
1067 1.10
1068 1.05
1069 1.02
1070 0.98
1071 0.97
1072 0.96
1073 0.98
1074 0.96
1075 0.94
1076 0.97
1077 0.98
1078 1.00
1079 1.05
1080 1.09
1081 1.18
1082 1.23
1083 1.31
1084 1.38
1085 1.49
1086 1.63
1087 1.78
1088 1.98
1089 2.22
1090 2.51
1091 2.81
1092 3.18
1093 3.67
1094 4.27
1095 4.98
1096 5.83
1097 6.84
1098 8.03
1099 9.35
1100 10.72

Mounts for Industrial Optical Filters

C-Mount

Defined by 1” (25.4mm) diameter and 32 turns per inch pitch, the C-Mount thread is a popular camera mount in machine vision industry. Schneider-Kreuznach offers a C-Mount option for most filters. So filters can go in any C-Mount based mechanics in vision systems.

Another popular application, C-Mounts can easily be used for, is placing a filter in front of the sensor into the camera. The extension of the back flange distance has to be considered for imaging applications.

Key Features of C-Mount Filters:
• Fits in C-Mount cameras
• Black Anodized Brass

Applications of C-Mount Filters:
• To be mounted in C-Mount cameras
• Vision Systems based on C-Mount mechanics

Thread Diameter Clear Thickness
Aperture
1'' - 32 25.4 mm 21.1 mm 3.6 mm

 

Filter C-Mount

 

 

SH-Mount

Schneider-Kreuznach offers a variety of mounts with common thread sizes to fit on most camera lens systems. SH-Mount is the standard, when high flexibility is needed. Filters are held by retainer rings. SH-Mounts are extreme robust.

All SH-Mounts have a female and male M-thread, and can be stacked if several filters must be combined.

Key features of SH-Mount Filters:
• Stackable
• ​​​​​Robust
• Black Anodized Brass

Applications of SH-Mount Filters:
• Mounted on lenses in imaging applications
• Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 29.5 mm 20.8mm 6.4 mm
M 27.0x0.5 31.0 mm 21.8 mm 6.4 mm
M 35.5x0.5 39.5 mm 29.8 mm 6.4 mm
M 37.0x0.75 41.0 mm 31.8 mm 6.9 mm
M 39.0x0.5 43.0 mm 33.8 mm 6.4 mm
M 40.5x0.5 44.5 mm 35.8 mm 6.4 mm
M 43.0x0.75 47.0 mm 37.8 mm 6.9 mm
M 46.0x0.75 50.0 mm 40.8 mm 6.9 mm
M 49.0x0.75 53.0 mm 43.8 mm 6.9 mm
M 52.0x0.75 56.0 mm 46.8 mm 6.9 mm
M 55.0x0.75 59.0 mm 49.8 mm 6.9 mm
M 58.0x0.75 62.0 mm 52.8 mm 6.9 mm
M 62.0x0.75 66.0 mm 56.8 mm 6.9 mm
M 67.0x0.75 71.0 mm 61.8 mm 6.9 mm

 

SH Filter-Mount

 

SN1-Mount

The SN1-Mount was designed for the in machine vision popular M30.5x0.5 thread. With its high clear aperture, vignetting can be avoided, even for wide angle applications. The filter is glued into the mount, in order to secure it against vibrations when integrated into robots or production lines. It is ideal to be used in automated fabrication.

SN1-Mounts have a male and female M-thread, and can be stacked if several filters must be combined.

Key features SN1-Mount Filters:
• Maximum Clear Aperture
• No vignetting
• Stackable
• Robust
• Black Anodized Brass

Applications SN1-Mount Filters:
• Mounted on lenses in imaging applications
• Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 30.5x0.5 32 mm 28 mm 6.5 mm

 

SN1 Filter-Mount

 

SN1-Mount

The SN2-Mount is designed for polarizers and achieves highest possible aperture, avoiding vignetting in machine vision systems. Its unique locking mechanism fixes the correct orientation, even in typical industrial environment. The filters are glued into the mount to secure them against vibrations when integrated into robots or production lines. Ideal for use in automated fabrication.

SN2-Mounts have a female and male M-thread, and can be stacked if several filters must be combined.

Key features:
• Rotatable
• High clear Aperture
• No vignetting
• Stackable
• Robust
• Black Anodized Brass

Applications:
• Mounted on lenses in imaging applications
• Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 27 mm 22.7 mm 7.4 mm
M 27.0x0.5 28.5 mm 23.7 mm 7.4 mm
M 30.5x0.5 32 mm 26.7 mm 7.4 mm
M 35.5 x0.5 37 mm 31.7 mm 7.4 mm
M 37.0x0.75 38.5 mm 32.7 mm 7.4 mm
M 40.5x0.5 42 mm 36.7 mm 7.4 mm
M 43.0x0.75 44.5 mm 37.7 mm 7.4 mm
M 46.0x0.75 47.5 mm 41.7 mm 7.4 mm
M 49.0x0.75 50.5 mm 44.7 mm 7.4 mm

 

SN2 Filter-Mount

DH-Mount

Schneider-Kreuznach offers a variety of mounts for polarizers with common thread sizes to fit on most camera lens systems. The DH-Mount is rotatable to adjust polarization axis in the required orientation. Filters are held by retainer rings.

All DH-Mounts have a female and male M-thread and can be stacked if several filters must be combined.

Key features:
• Rotatable
• Stackable
• Black Anodized Brass

Applications:
• Mounted on lenses in imaging applications
• Mounted on measurement instruments

Thread Diameter Clear Thickness
Aperture
M 25.5x0.5 27 mm 20.8 mm 9.2 mm
M 27.0x0.5 28.5 mm 21.8 mm 9.2 mm
M 30.5x0.5 32 mm 25.8 mm 9.2 mm
M 35.5 x0.5 37 mm 30.8 mm 9.2 mm
M 37.0x0.75 38.5 mm 31.8 mm 9.2 mm
M 40.5x0.5 42 mm 35.8 mm 9.2 mm
M 43.0x0.75 44.5 mm 37.8 mm 9.2 mm
M 46.0x0.75 47.5 mm 40.8 mm 9.2 mm
M 49.0x0.75 50.5 mm 43.8 mm 9.2 mm
M 52.0x0.75 53.5 mm 46.8 mm 9.2 mm
M 55.0x0.75 56.5 mm 49.8 mm 9.2 mm
M 58.0x0.75 59.5 mm 52.8 mm 9.2 mm
M 62.0x0.75 63.5 mm 56.8 mm 9.2 mm
M 67.0x0.75 68.5 mm 61.8 mm 9.2 mm

 

DH Filter-Mount



 

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55543 Bad Kreuznach | Germany
+49 (0) 671 601 0

 

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