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LP 590 HT 
Longpass Filter



Key features

  • Average transmittance 95%
  • Steep slopes
  • Ultra low reflection
  • Deep blocking / High optical density
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Schneider-Kreuznach Longpass Filter LP 590 HT

Schneider-Kreuznach longpass filters deliver high transmission and precise cutoff performance for use in industrial and machine vision applications. Thanks to their steep slopes, flat surfaces, and robust AR coatings, these filters ensure accurate results and minimal reflections even under demanding conditions. 

The Schneider-Kreuznach LP 590 HT magnetron sputtered industrial longpass filter features steep slopes and high transmission at stable cut-on wavelengths. The very flat surface makes it ideal for high end machine vision systems in factory automation. All longpass filters come with superior antireflection coating. Schneider-Kreuznach longpass filters are RoHS conform. Custom sizes are available on request.

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Technical specifications: LP 590 HT Longpass Filter

TypeOn request
Characteristicsinterference
Angle of indcident0° +/- 8°
Cut-on wavelength590 +/- 6 nm
Transmittance610 - 900 nm: Tabs > 90%
610 - 900 nm: Tave > 95%
Blocking< 535 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 Longpass Filter LP 590 HT



Transmission of the LP 590 HT Filter


 

Transmission Data

 

Download Excel

Wavelength (nm) Transmission (%)
350 0.09
351 0.09
352 0.09
353 0.14
354 0.20
355 0.30
356 0.35
357 0.27
358 0.14
359 0.07
360 0.06
361 0.08
362 0.06
363 0.04
364 0.04
365 0.04
366 0.05
367 0.06
368 0.07
369 0.11
370 0.13
371 0.08
372 0.07
373 0.05
374 0.07
375 0.07
376 0.07
377 0.09
378 0.09
379 0.06
380 0.04
381 0.07
382 0.06
383 0.08
384 0.02
385 0.05
386 0.05
387 0.04
388 0.04
389 0.03
390 0.03
391 0.04
392 0.05
393 0.05
394 0.06
395 0.06
396 0.07
397 0.07
398 0.06
399 0.05
400 0.05
401 0.04
402 0.03
403 0.03
404 0.03
405 0.03
406 0.03
407 0.03
408 0.03
409 0.03
410 0.03
411 0.02
412 0.03
413 0.03
414 0.03
415 0.04
416 0.05
417 0.08
418 0.11
419 0.09
420 0.06
421 0.04
422 0.04
423 0.03
424 0.03
425 0.04
426 0.04
427 0.02
428 0.02
429 0.02
430 0.02
431 0.02
432 0.03
433 0.04
434 0.04
435 0.03
436 0.04
437 0.07
438 0.11
439 0.11
440 0.09
441 0.05
442 0.04
443 0.03
444 0.02
445 0.02
446 0.02
447 0.02
448 0.02
449 0.03
450 0.03
451 0.02
452 0.02
453 0.02
454 0.01
455 0.02
456 0.02
457 0.03
458 0.02
459 0.02
460 0.02
461 0.02
462 0.02
463 0.02
464 0.02
465 0.03
466 0.03
467 0.04
468 0.04
469 0.05
470 0.05
471 0.05
472 0.05
473 0.05
474 0.04
475 0.03
476 0.03
477 0.03
478 0.02
479 0.03
480 0.03
481 0.03
482 0.03
483 0.03
484 0.03
485 0.02
486 0.03
487 0.02
488 0.03
489 0.03
490 0.03
491 0.03
492 0.02
493 0.03
494 0.03
495 0.03
496 0.03
497 0.04
498 0.04
499 0.03
500 0.03
501 0.03
502 0.04
503 0.04
504 0.04
505 0.05
506 0.05
507 0.04
508 0.04
509 0.04
510 0.04
511 0.05
512 0.05
513 0.05
514 0.04
515 0.04
516 0.04
517 0.04
518 0.04
519 0.04
520 0.05
521 0.05
522 0.04
523 0.04
524 0.04
525 0.04
526 0.04
527 0.04
528 0.05
529 0.05
530 0.05
531 0.05
532 0.05
533 0.05
534 0.06
535 0.06
536 0.06
537 0.08
538 0.08
539 0.09
540 0.09
541 0.10
542 0.11
543 0.12
544 0.14
545 0.16
546 0.18
547 0.19
548 0.22
549 0.25
550 0.28
551 0.32
552 0.36
553 0.42
554 0.47
555 0.54
556 0.60
557 0.69
558 0.77
559 0.87
560 1.02
561 1.13
562 1.26
563 1.39
564 1.54
565 1.70
566 1.89
567 2.09
568 2.32
569 2.57
570 2.85
571 3.18
572 3.55
573 3.98
574 4.47
575 5.04
576 5.71
577 6.49
578 7.40
579 8.48
580 9.76
581 11.26
582 13.06
583 15.16
584 17.69
585 20.63
586 24.13
587 28.12
588 32.73
589 37.91
590 43.73
591 49.96
592 56.61
593 63.27
594 69.83
595 75.90
596 81.41
597 86.11
598 89.99
599 92.99
600 95.26
601 96.80
602 97.82
603 98.45
604 98.74
605 98.91
606 98.90
607 98.82
608 98.72
609 98.63
610 98.55
611 98.47
612 98.42
613 98.42
614 98.43
615 98.49
616 98.51
617 98.60
618 98.66
619 98.76
620 98.83
621 98.90
622 98.99
623 99.08
624 99.11
625 99.15
626 99.19
627 99.24
628 99.29
629 99.30
630 99.34
631 99.33
632 99.34
633 99.32
634 99.30
635 99.26
636 99.22
637 99.17
638 99.12
639 99.05
640 98.98
641 98.90
642 98.82
643 98.73
644 98.65
645 98.55
646 98.50
647 98.43
648 98.38
649 98.30
650 98.28
651 98.21
652 98.21
653 98.17
654 98.20
655 98.17
656 98.21
657 98.24
658 98.29
659 98.32
660 98.40
661 98.43
662 98.50
663 98.55
664 98.62
665 98.66
666 98.75
667 98.77
668 98.84
669 98.86
670 98.88
671 98.91
672 98.92
673 98.93
674 98.93
675 98.93
676 98.90
677 98.88
678 98.87
679 98.82
680 98.75
681 98.75
682 98.69
683 98.63
684 98.60
685 98.55
686 98.53
687 98.49
688 98.47
689 98.45
690 98.44
691 98.42
692 98.43
693 98.44
694 98.46
695 98.47
696 98.50
697 98.55
698 98.61
699 98.64
700 98.68
701 98.71
702 98.77
703 98.83
704 98.88
705 98.92
706 98.99
707 99.03
708 99.06
709 99.08
710 99.12
711 99.14
712 99.14
713 99.14
714 99.13
715 99.13
716 99.12
717 99.09
718 99.06
719 99.03
720 98.97
721 98.92
722 98.87
723 98.80
724 98.74
725 98.67
726 98.60
727 98.56
728 98.49
729 98.44
730 98.38
731 98.33
732 98.29
733 98.26
734 98.20
735 98.19
736 98.18
737 98.19
738 98.20
739 98.19
740 98.22
741 98.22
742 98.28
743 98.32
744 98.37
745 98.40
746 98.47
747 98.52
748 98.61
749 98.69
750 98.78
751 98.82
752 98.90
753 98.97
754 99.05
755 99.13
756 99.18
757 99.22
758 99.30
759 99.36
760 99.41
761 99.44
762 99.47
763 99.50
764 99.51
765 99.51
766 99.52
767 99.52
768 99.52
769 99.47
770 99.45
771 99.40
772 99.38
773 99.31
774 99.25
775 99.19
776 99.14
777 99.06
778 99.01
779 98.94
780 98.87
781 98.80
782 98.75
783 98.68
784 98.61
785 98.55
786 98.51
787 98.44
788 98.39
789 98.34
790 98.31
791 98.28
792 98.25
793 98.21
794 98.21
795 98.19
796 98.11
797 98.17
798 98.16
799 98.22
800 98.23
801 98.30
802 98.30
803 98.33
804 98.38
805 98.44
806 98.51
807 98.54
808 98.63
809 98.68
810 98.73
811 98.77
812 98.83
813 98.89
814 98.95
815 99.01
816 99.08
817 99.12
818 99.17
819 99.20
820 99.24
821 99.26
822 99.30
823 99.33
824 99.36
825 99.38
826 99.38
827 99.37
828 99.37
829 99.38
830 99.34
831 99.36
832 99.34
833 99.31
834 99.27
835 99.24
836 99.24
837 99.19
838 99.15
839 99.08
840 99.05
841 99.02
842 98.96
843 98.93
844 98.89
845 98.83
846 98.79
847 98.77
848 98.72
849 98.71
850 98.66
851 98.63
852 98.61
853 98.58
854 98.55
855 98.57
856 98.56
857 98.55
858 98.54
859 98.56
860 98.55
861 98.56
862 98.58
863 98.58
864 98.62
865 98.65
866 98.70
867 98.73
868 98.77
869 98.81
870 98.85
871 98.89
872 98.95
873 98.99
874 99.04
875 99.07
876 99.12
877 99.15
878 99.16
879 99.18
880 99.23
881 99.26
882 99.30
883 99.33
884 99.32
885 99.42
886 99.39
887 99.44
888 99.41
889 99.45
890 99.38
891 99.44
892 99.38
893 99.41
894 99.28
895 99.32
896 99.20
897 99.22
898 99.01
899 99.10
900 98.92
901 98.95
902 98.76
903 98.76
904 98.60
905 98.55
906 98.37
907 98.36
908 98.19
909 98.10
910 97.93
911 97.86
912 97.73
913 97.61
914 97.49
915 97.34
916 97.14
917 97.02
918 96.94
919 96.80
920 96.70
921 96.54
922 96.41
923 96.27
924 96.15
925 96.03
926 95.91
927 95.80
928 95.71
929 95.60
930 95.48
931 95.42
932 95.28
933 95.24
934 95.11
935 95.06
936 94.95
937 94.89
938 94.82
939 94.78
940 94.67
941 94.75
942 94.66
943 94.69
944 94.62
945 94.62
946 94.57
947 94.59
948 94.55
949 94.58
950 94.54
951 94.60
952 94.59
953 94.62
954 94.61
955 94.67
956 94.62
957 94.72
958 94.73
959 94.76
960 94.79
961 94.86
962 94.91
963 94.92
964 94.93
965 94.98
966 95.02
967 95.08
968 95.11
969 95.17
970 95.19
971 95.24
972 95.26
973 95.27
974 95.31
975 95.42
976 95.38
977 95.43
978 95.45
979 95.45
980 95.43
981 95.45
982 95.49
983 95.49
984 95.47
985 95.49
986 95.47
987 95.46
988 95.42
989 95.41
990 95.42
991 95.35
992 95.38
993 95.31
994 95.28
995 95.24
996 95.20
997 95.13
998 95.11
999 95.07
1000 95.06
1001 94.95
1002 94.93
1003 94.87
1004 94.82
1005 94.71
1006 94.68
1007 94.60
1008 94.64
1009 94.57
1010 94.52
1011 94.45
1012 94.49
1013 94.35
1014 94.36
1015 94.29
1016 94.27
1017 94.20
1018 94.23
1019 94.13
1020 94.16
1021 94.10
1022 94.12
1023 94.06
1024 94.10
1025 94.06
1026 94.05
1027 94.05
1028 94.10
1029 94.10
1030 94.11
1031 94.09
1032 94.18
1033 94.15
1034 94.24
1035 94.25
1036 94.31
1037 94.36
1038 94.46
1039 94.45
1040 94.52
1041 94.59
1042 94.70
1043 94.76
1044 94.85
1045 94.90
1046 95.00
1047 95.12
1048 95.21
1049 95.32
1050 95.38
1051 95.47
1052 95.60
1053 95.73
1054 95.84
1055 95.97
1056 96.06
1057 96.17
1058 96.22
1059 96.40
1060 96.51
1061 96.62
1062 96.63
1063 96.84
1064 96.84
1065 96.98
1066 97.04
1067 97.25
1068 97.30
1069 97.38
1070 97.41
1071 97.59
1072 97.61
1073 97.69
1074 97.69
1075 97.84
1076 97.85
1077 97.91
1078 97.90
1079 97.98
1080 97.90
1081 98.01
1082 97.94
1083 97.95
1084 97.88
1085 97.96
1086 97.85
1087 97.83
1088 97.73
1089 97.65
1090 97.52
1091 97.45
1092 97.35
1093 97.25
1094 97.15
1095 97.03
1096 96.89
1097 96.73
1098 96.57
1099 96.43
1100 96.19

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 Longpass Filters


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+49 (0) 671 601 0

 

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