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LP 515 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 515 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 515 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 515 HT Longpass Filter

TypeOn request
Characteristicsinterference
Angle of indcident0° +/- 8°
Cut-on wavelength515 +/- 5 nm
Transmittance540 - 900 nm: Tabs > 90%
540 - 900 nm: Tave > 95%
Blocking< 475 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 515 HT



Transmission of the LP 515 HT Filter


 

Transmission Data

 

Download Excel

Wavelength (nm) Transmission (%)
350 0.07
351 0.06
352 0.05
353 0.06
354 0.07
355 0.07
356 0.09
357 0.09
358 0.08
359 0.05
360 0.04
361 0.03
362 0.03
363 0.02
364 0.02
365 0.02
366 0.02
367 0.02
368 0.04
369 0.08
370 0.07
371 0.04
372 0.02
373 0.01
374 0.01
375 0.01
376 0.02
377 0.02
378 0.02
379 0.01
380 0.02
381 0.02
382 0.01
383 0.03
384 0.03
385 0.07
386 0.07
387 0.07
388 0.07
389 0.07
390 0.08
391 0.08
392 0.08
393 0.08
394 0.08
395 0.08
396 0.08
397 0.08
398 0.08
399 0.08
400 0.08
401 0.08
402 0.08
403 0.08
404 0.08
405 0.08
406 0.08
407 0.08
408 0.08
409 0.08
410 0.08
411 0.07
412 0.07
413 0.07
414 0.07
415 0.07
416 0.07
417 0.07
418 0.07
419 0.06
420 0.05
421 0.05
422 0.05
423 0.05
424 0.05
425 0.05
426 0.05
427 0.04
428 0.05
429 0.04
430 0.04
431 0.04
432 0.05
433 0.05
434 0.05
435 0.04
436 0.04
437 0.04
438 0.04
439 0.04
440 0.04
441 0.04
442 0.04
443 0.04
444 0.04
445 0.04
446 0.03
447 0.03
448 0.04
449 0.04
450 0.04
451 0.04
452 0.04
453 0.04
454 0.04
455 0.04
456 0.04
457 0.04
458 0.04
459 0.04
460 0.04
461 0.04
462 0.04
463 0.04
464 0.04
465 0.04
466 0.05
467 0.04
468 0.04
469 0.05
470 0.04
471 0.05
472 0.05
473 0.05
474 0.06
475 0.06
476 0.06
477 0.06
478 0.07
479 0.08
480 0.08
481 0.09
482 0.10
483 0.11
484 0.12
485 0.14
486 0.16
487 0.18
488 0.21
489 0.24
490 0.28
491 0.32
492 0.37
493 0.44
494 0.52
495 0.61
496 0.73
497 0.87
498 1.05
499 1.27
500 1.55
501 1.90
502 2.33
503 2.89
504 3.60
505 4.50
506 5.66
507 7.16
508 9.08
509 11.52
510 14.60
511 18.49
512 23.30
513 29.12
514 35.90
515 43.46
516 51.69
517 59.93
518 67.92
519 75.06
520 81.25
521 86.15
522 90.03
523 92.81
524 94.77
525 96.08
526 96.99
527 97.49
528 97.78
529 97.90
530 97.98
531 97.96
532 97.93
533 97.88
534 97.82
535 97.78
536 97.76
537 97.76
538 97.77
539 97.80
540 97.83
541 97.86
542 97.89
543 97.93
544 97.96
545 97.98
546 98.01
547 98.02
548 97.99
549 98.01
550 97.92
551 97.90
552 97.85
553 97.82
554 97.77
555 97.72
556 97.67
557 97.66
558 97.64
559 97.65
560 97.71
561 97.68
562 97.72
563 97.72
564 97.82
565 97.87
566 97.92
567 97.97
568 98.02
569 98.09
570 98.11
571 98.15
572 98.19
573 98.19
574 98.19
575 98.17
576 98.15
577 98.12
578 98.09
579 98.04
580 98.00
581 97.98
582 97.92
583 97.87
584 97.84
585 97.82
586 97.78
587 97.78
588 97.78
589 97.80
590 97.81
591 97.86
592 97.90
593 97.95
594 98.01
595 98.06
596 98.14
597 98.20
598 98.27
599 98.32
600 98.39
601 98.42
602 98.46
603 98.50
604 98.51
605 98.53
606 98.53
607 98.51
608 98.50
609 98.46
610 98.43
611 98.37
612 98.34
613 98.29
614 98.25
615 98.18
616 98.13
617 98.07
618 98.03
619 97.99
620 97.96
621 97.95
622 97.95
623 97.93
624 97.94
625 97.94
626 97.96
627 97.99
628 98.03
629 98.05
630 98.11
631 98.16
632 98.23
633 98.29
634 98.33
635 98.40
636 98.44
637 98.50
638 98.54
639 98.59
640 98.64
641 98.67
642 98.67
643 98.69
644 98.71
645 98.69
646 98.67
647 98.66
648 98.62
649 98.61
650 98.57
651 98.52
652 98.45
653 98.44
654 98.39
655 98.33
656 98.30
657 98.26
658 98.20
659 98.18
660 98.15
661 98.11
662 98.09
663 98.07
664 98.07
665 98.07
666 98.07
667 98.12
668 98.11
669 98.14
670 98.15
671 98.25
672 98.25
673 98.32
674 98.36
675 98.40
676 98.45
677 98.52
678 98.56
679 98.62
680 98.65
681 98.72
682 98.74
683 98.79
684 98.80
685 98.81
686 98.83
687 98.85
688 98.84
689 98.82
690 98.80
691 98.78
692 98.75
693 98.72
694 98.66
695 98.58
696 98.55
697 98.49
698 98.40
699 98.35
700 98.27
701 98.19
702 98.12
703 98.05
704 97.98
705 97.89
706 97.82
707 97.74
708 97.69
709 97.62
710 97.56
711 97.50
712 97.48
713 97.41
714 97.40
715 97.35
716 97.35
717 97.33
718 97.31
719 97.31
720 97.30
721 97.33
722 97.34
723 97.35
724 97.36
725 97.41
726 97.44
727 97.45
728 97.49
729 97.54
730 97.57
731 97.59
732 97.65
733 97.66
734 97.71
735 97.74
736 97.77
737 97.77
738 97.79
739 97.80
740 97.82
741 97.83
742 97.83
743 97.81
744 97.77
745 97.77
746 97.75
747 97.73
748 97.68
749 97.64
750 97.59
751 97.53
752 97.48
753 97.43
754 97.36
755 97.28
756 97.21
757 97.15
758 97.06
759 96.99
760 96.89
761 96.82
762 96.76
763 96.69
764 96.61
765 96.52
766 96.43
767 96.37
768 96.32
769 96.25
770 96.17
771 96.11
772 96.05
773 96.01
774 95.96
775 95.93
776 95.89
777 95.88
778 95.85
779 95.85
780 95.84
781 95.84
782 95.84
783 95.83
784 95.82
785 95.84
786 95.84
787 95.86
788 95.85
789 95.86
790 95.88
791 95.92
792 95.95
793 95.98
794 95.99
795 96.01
796 96.04
797 96.05
798 96.08
799 96.08
800 96.12
801 96.15
802 96.16
803 96.16
804 96.19
805 96.20
806 96.20
807 96.22
808 96.23
809 96.22
810 96.21
811 96.21
812 96.20
813 96.19
814 96.18
815 96.18
816 96.14
817 96.13
818 96.11
819 96.06
820 96.02
821 96.00
822 95.97
823 95.96
824 95.91
825 95.88
826 95.85
827 95.81
828 95.76
829 95.71
830 95.68
831 95.65
832 95.62
833 95.58
834 95.55
835 95.50
836 95.51
837 95.47
838 95.42
839 95.43
840 95.39
841 95.38
842 95.37
843 95.36
844 95.35
845 95.35
846 95.32
847 95.33
848 95.33
849 95.35
850 95.31
851 95.34
852 95.36
853 95.37
854 95.39
855 95.39
856 95.42
857 95.46
858 95.47
859 95.51
860 95.54
861 95.55
862 95.60
863 95.63
864 95.66
865 95.70
866 95.73
867 95.75
868 95.79
869 95.81
870 95.84
871 95.87
872 95.89
873 95.93
874 95.95
875 95.98
876 96.01
877 96.06
878 96.05
879 96.07
880 96.11
881 96.10
882 96.12
883 96.14
884 96.16
885 96.13
886 96.17
887 96.15
888 96.18
889 96.11
890 96.16
891 96.13
892 96.13
893 96.07
894 96.11
895 96.06
896 96.06
897 96.02
898 96.05
899 95.95
900 96.00
901 95.94
902 95.93
903 95.86
904 95.90
905 95.83
906 95.84
907 95.74
908 95.76
909 95.73
910 95.73
911 95.68
912 95.68
913 95.66
914 95.64
915 95.61
916 95.57
917 95.58
918 95.54
919 95.56
920 95.52
921 95.51
922 95.52
923 95.56
924 95.48
925 95.53
926 95.53
927 95.53
928 95.56
929 95.58
930 95.59
931 95.59
932 95.63
933 95.68
934 95.69
935 95.73
936 95.74
937 95.80
938 95.84
939 95.87
940 95.92
941 95.95
942 96.02
943 96.06
944 96.11
945 96.14
946 96.20
947 96.19
948 96.31
949 96.35
950 96.44
951 96.46
952 96.53
953 96.57
954 96.65
955 96.69
956 96.77
957 96.77
958 96.86
959 96.88
960 96.94
961 96.97
962 97.03
963 97.04
964 97.10
965 97.11
966 97.15
967 97.17
968 97.19
969 97.19
970 97.20
971 97.19
972 97.22
973 97.22
974 97.23
975 97.19
976 97.16
977 97.13
978 97.11
979 97.09
980 97.05
981 96.98
982 96.95
983 96.87
984 96.85
985 96.77
986 96.70
987 96.63
988 96.55
989 96.47
990 96.35
991 96.27
992 96.17
993 96.06
994 95.95
995 95.83
996 95.74
997 95.58
998 95.48
999 95.37
1000 95.19
1001 95.06
1002 94.92
1003 94.78
1004 94.62
1005 94.49
1006 94.34
1007 94.18
1008 94.03
1009 93.91
1010 93.70
1011 93.59
1012 93.38
1013 93.24
1014 93.02
1015 92.89
1016 92.73
1017 92.60
1018 92.40
1019 92.27
1020 92.10
1021 91.96
1022 91.80
1023 91.64
1024 91.45
1025 91.32
1026 91.15
1027 91.04
1028 90.87
1029 90.75
1030 90.58
1031 90.47
1032 90.33
1033 90.21
1034 90.05
1035 89.95
1036 89.80
1037 89.70
1038 89.57
1039 89.47
1040 89.32
1041 89.22
1042 89.11
1043 89.04
1044 88.94
1045 88.87
1046 88.77
1047 88.71
1048 88.63
1049 88.55
1050 88.50
1051 88.41
1052 88.35
1053 88.27
1054 88.22
1055 88.19
1056 88.11
1057 88.06
1058 88.03
1059 87.95
1060 87.94
1061 87.92
1062 87.90
1063 87.83
1064 87.86
1065 87.83
1066 87.81
1067 87.73
1068 87.73
1069 87.72
1070 87.71
1071 87.67
1072 87.75
1073 87.70
1074 87.75
1075 87.71
1076 87.76
1077 87.73
1078 87.73
1079 87.72
1080 87.79
1081 87.74
1082 87.77
1083 87.73
1084 87.75
1085 87.78
1086 87.78
1087 87.79
1088 87.86
1089 87.81
1090 87.84
1091 87.82
1092 87.85
1093 87.84
1094 87.81
1095 87.84
1096 87.84
1097 87.83
1098 87.92
1099 87.90
1100 87.91

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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