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BP 520-280 HT 
Bandpass Filter



Key features

  • Average transmittance 95%
  • Steep slopes
  • Wavelength tolerance +/- 1%
  • Deep blocking / High optical density
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Schneider-Kreuznach Bandpass Filter BP 520-280 HT

Schneider-Kreuznach magnetron sputtered industrial bandpass filters impress with steep slopes and high transmission at stable cut-on and cut-off wavelengths. The very flat surface makes them ideal for high end inspection systems. Schneider-Kreuznach bandpass filters are RoHS conform. Custom sizes and shapes are available on request.

The Schneider-Kreuznach BP 520-280 HT magnetron sputtered industrial bandpass filter offers steep slopes, high transmission, and stable cut-on and cut-off wavelengths. Its exceptionally flat surface ensures optimal performance in high-end inspection systems. RoHS compliant and available in custom sizes and shapes, it is ideal for applications in machine vision, automated optical inspection, and industrial quality control.

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Technical specifications: BP 520-280 HT Bandpass Filter

TypeOn request
Wavelength range, 50%-50%380-660 nm
Center Wavelength520 nm
Bandwidth280 nm
Angle of incidence0° +/- 8°
Cut-on wavelength380 +/- 5 nm
Cut-off wavelength660 +/- 7 nm
Transmittance420 - 640 nm: Tave > 95%; Tabs > 90%
Blocking< 365 nm: Tabs < 1.0%
710 - 1050 nm: Tabs < 1.0%
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 Bandpass Filter BP 520-280 HT



Transmission of the BP 520-280 HT Filter


 

Transmission Data

 

Download Excel

Wavelength (nm) Transmission (%)
350 0.02
351 0.02
352 0.04
353 0.05
354 0.04
355 0.01
356 0.01
357 0.00
358 0.03
359 0.05
360 0.11
361 0.17
362 0.20
363 0.25
364 0.29
365 0.30
366 0.28
367 0.26
368 0.26
369 0.30
370 0.35
371 0.46
372 0.70
373 1.15
374 2.00
375 3.80
376 7.92
377 18.14
378 37.82
379 60.23
380 72.38
381 75.55
382 78.69
383 82.58
384 85.29
385 87.13
386 88.72
387 89.53
388 89.33
389 88.78
390 89.20
391 90.73
392 91.97
393 91.59
394 90.13
395 89.03
396 89.43
397 91.19
398 93.36
399 94.48
400 94.49
401 93.88
402 93.50
403 93.72
404 94.36
405 94.98
406 95.47
407 95.72
408 96.01
409 96.24
410 96.48
411 96.47
412 96.49
413 96.34
414 96.53
415 96.66
416 96.94
417 96.90
418 96.85
419 96.58
420 96.46
421 96.40
422 96.62
423 96.89
424 97.19
425 97.34
426 97.40
427 97.23
428 97.12
429 96.99
430 97.04
431 97.12
432 97.22
433 97.34
434 97.39
435 97.35
436 97.29
437 97.27
438 97.27
439 97.31
440 97.26
441 97.35
442 97.35
443 97.42
444 97.47
445 97.63
446 97.84
447 98.04
448 98.14
449 98.13
450 97.96
451 97.79
452 97.60
453 97.56
454 97.65
455 97.89
456 98.12
457 98.31
458 98.26
459 98.08
460 97.70
461 97.37
462 97.05
463 97.06
464 97.15
465 97.53
466 97.82
467 98.21
468 98.37
469 98.52
470 98.48
471 98.50
472 98.49
473 98.51
474 98.53
475 98.58
476 98.48
477 98.39
478 98.18
479 97.99
480 97.85
481 97.78
482 97.83
483 97.96
484 98.12
485 98.25
486 98.29
487 98.20
488 98.04
489 97.87
490 97.72
491 97.74
492 97.84
493 98.06
494 98.33
495 98.54
496 98.67
497 98.63
498 98.54
499 98.28
500 98.02
501 97.82
502 97.72
503 97.79
504 97.99
505 98.25
506 98.53
507 98.71
508 98.76
509 98.71
510 98.52
511 98.32
512 98.13
513 97.98
514 97.98
515 98.07
516 98.24
517 98.46
518 98.61
519 98.63
520 98.59
521 98.40
522 98.17
523 97.89
524 97.72
525 97.61
526 97.63
527 97.77
528 98.03
529 98.32
530 98.62
531 98.74
532 98.85
533 98.81
534 98.67
535 98.45
536 98.25
537 98.11
538 98.04
539 98.04
540 98.14
541 98.32
542 98.51
543 98.69
544 98.78
545 98.76
546 98.63
547 98.42
548 98.14
549 97.85
550 97.58
551 97.39
552 97.31
553 97.28
554 97.41
555 97.57
556 97.79
557 98.03
558 98.23
559 98.37
560 98.38
561 98.38
562 98.31
563 98.18
564 98.05
565 97.95
566 97.85
567 97.84
568 97.82
569 97.92
570 98.01
571 98.10
572 98.15
573 98.23
574 98.23
575 98.28
576 98.26
577 98.25
578 98.20
579 98.26
580 98.21
581 98.34
582 98.38
583 98.53
584 98.60
585 98.74
586 98.79
587 98.85
588 98.82
589 98.83
590 98.70
591 98.61
592 98.47
593 98.33
594 98.21
595 98.11
596 98.03
597 97.99
598 97.96
599 97.94
600 97.94
601 97.95
602 97.92
603 97.91
604 97.86
605 97.79
606 97.70
607 97.68
608 97.62
609 97.58
610 97.58
611 97.59
612 97.62
613 97.69
614 97.77
615 97.85
616 97.91
617 97.99
618 98.04
619 98.06
620 98.10
621 98.11
622 98.11
623 98.11
624 98.14
625 98.15
626 98.19
627 98.25
628 98.32
629 98.43
630 98.47
631 98.52
632 98.54
633 98.57
634 98.56
635 98.57
636 98.54
637 98.57
638 98.56
639 98.59
640 98.60
641 98.65
642 98.70
643 98.74
644 98.74
645 98.73
646 98.67
647 98.59
648 98.41
649 98.18
650 97.78
651 97.18
652 96.13
653 94.52
654 92.01
655 88.28
656 83.29
657 76.87
658 69.34
659 61.08
660 52.70
661 44.72
662 37.46
663 31.23
664 25.92
665 21.63
666 18.12
667 15.30
668 13.03
669 11.22
670 9.76
671 8.57
672 7.60
673 6.79
674 6.12
675 5.54
676 5.05
677 4.61
678 4.21
679 3.83
680 3.47
681 3.12
682 2.79
683 2.46
684 2.16
685 1.83
686 1.58
687 1.35
688 1.16
689 1.00
690 0.86
691 0.74
692 0.64
693 0.56
694 0.49
695 0.44
696 0.39
697 0.36
698 0.33
699 0.30
700 0.28
701 0.26
702 0.25
703 0.24
704 0.24
705 0.23
706 0.23
707 0.23
708 0.23
709 0.24
710 0.25
711 0.26
712 0.27
713 0.28
714 0.30
715 0.31
716 0.32
717 0.33
718 0.33
719 0.32
720 0.30
721 0.28
722 0.26
723 0.23
724 0.20
725 0.18
726 0.16
727 0.14
728 0.13
729 0.12
730 0.11
731 0.10
732 0.10
733 0.09
734 0.09
735 0.08
736 0.09
737 0.09
738 0.09
739 0.09
740 0.10
741 0.10
742 0.11
743 0.13
744 0.14
745 0.17
746 0.20
747 0.23
748 0.27
749 0.29
750 0.30
751 0.28
752 0.23
753 0.19
754 0.15
755 0.11
756 0.09
757 0.07
758 0.05
759 0.05
760 0.04
761 0.04
762 0.03
763 0.03
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 0.02
776 0.02
777 0.02
778 0.02
779 0.02
780 0.02
781 0.03
782 0.03
783 0.04
784 0.05
785 0.07
786 0.08
787 0.08
788 0.09
789 0.08
790 0.06
791 0.05
792 0.04
793 0.03
794 0.02
795 0.02
796 0.01
797 0.01
798 0.01
799 0.01
800 0.01
801 0.01
802 0.01
803 0.01
804 0.01
805 0.00
806 0.01
807 0.01
808 0.01
809 0.01
810 0.01
811 0.01
812 0.00
813 0.00
814 0.00
815 0.00
816 0.00
817 0.01
818 0.01
819 0.01
820 0.00
821 0.00
822 0.00
823 0.01
824 0.01
825 0.01
826 0.01
827 0.01
828 0.01
829 0.01
830 0.01
831 0.01
832 0.01
833 0.02
834 0.02
835 0.02
836 0.04
837 0.07
838 0.11
839 0.12
840 0.09
841 0.05
842 0.03
843 0.02
844 0.02
845 0.01
846 0.01
847 0.01
848 0.01
849 0.01
850 0.01
851 0.01
852 0.00
853 0.00
854 0.00
855 0.00
856 0.00
857 0.01
858 0.01
859 0.00
860 0.00
861 0.00
862 0.00
863 0.00
864 0.00
865 0.01
866 0.01
867 0.00
868 0.00
869 0.00
870 0.00
871 0.00
872 0.00
873 0.01
874 0.01
875 0.00
876 0.00
877 0.00
878 0.00
879 0.00
880 0.00
881 0.01
882 0.01
883 0.00
884 0.00
885 0.01
886 0.00
887 0.01
888 0.01
889 0.01
890 0.01
891 0.01
892 0.01
893 0.01
894 0.01
895 0.01
896 0.01
897 0.02
898 0.02
899 0.02
900 0.03
901 0.03
902 0.05
903 0.05
904 0.05
905 0.04
906 0.03
907 0.02
908 0.02
909 0.01
910 0.01
911 0.01
912 0.01
913 0.01
914 0.00
915 0.00
916 0.00
917 0.00
918 0.00
919 0.00
920 0.00
921 0.01
922 0.01
923 0.00
924 0.00
925 0.00
926 0.00
927 0.00
928 0.00
929 0.00
930 0.00
931 0.00
932 0.00
933 0.00
934 0.00
935 0.00
936 0.00
937 0.01
938 0.01
939 0.00
940 0.00
941 0.00
942 0.00
943 0.00
944 0.01
945 0.01
946 0.01
947 0.00
948 0.00
949 0.00
950 0.00
951 0.00
952 0.01
953 0.01
954 0.01
955 0.01
956 0.00
957 0.01
958 0.00
959 0.01
960 0.01
961 0.02
962 0.02
963 0.01
964 0.01
965 0.00
966 0.01
967 0.02
968 0.02
969 0.03
970 0.03
971 0.03
972 0.03
973 0.03
974 0.03
975 0.03
976 0.04
977 0.06
978 0.06
979 0.05
980 0.04
981 0.04
982 0.04
983 0.04
984 0.03
985 0.03
986 0.03
987 0.03
988 0.02
989 0.02
990 0.02
991 0.02
992 0.02
993 0.02
994 0.02
995 0.02
996 0.01
997 0.01
998 0.01
999 0.01
1000 0.01
1001 0.02
1002 0.02
1003 0.01
1004 0.01
1005 0.01
1006 0.01
1007 0.01
1008 0.02
1009 0.02
1010 0.02
1011 0.01
1012 0.02
1013 0.01
1014 0.01
1015 0.02
1016 0.03
1017 0.02
1018 0.02
1019 0.02
1020 0.02
1021 0.02
1022 0.02
1023 0.02
1024 0.03
1025 0.03
1026 0.03
1027 0.03
1028 0.03
1029 0.03
1030 0.03
1031 0.03
1032 0.04
1033 0.05
1034 0.05
1035 0.05
1036 0.05
1037 0.05
1038 0.05
1039 0.07
1040 0.07
1041 0.09
1042 0.10
1043 0.10
1044 0.10
1045 0.11
1046 0.13
1047 0.15
1048 0.17
1049 0.20
1050 0.23
1051 0.25
1052 0.28
1053 0.34
1054 0.38
1055 0.44
1056 0.53
1057 0.64
1058 0.74
1059 0.85
1060 0.99
1061 1.15
1062 1.33
1063 1.54
1064 1.76
1065 1.98
1066 2.18
1067 2.32
1068 2.45
1069 2.53
1070 2.56
1071 2.58
1072 2.59
1073 2.55
1074 2.50
1075 2.44
1076 2.38
1077 2.34
1078 2.31
1079 2.28
1080 2.25
1081 2.28
1082 2.28
1083 2.29
1084 2.29
1085 2.32
1086 2.37
1087 2.41
1088 2.49
1089 2.61
1090 2.73
1091 2.81
1092 2.95
1093 3.11
1094 3.31
1095 3.50
1096 3.74
1097 4.02
1098 4.34
1099 4.70
1100 5.14

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



 

More Bandpass Filters


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Ringstraße 132
55543 Bad Kreuznach | Germany
+49 (0) 671 601 0

 

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