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 | 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 |
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 | |
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 | |
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 | |
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 | |
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 | |
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 | |
50% splits nm | 633 | 630 | 627 | 625 | 623 | 615 | 612 | 608 | 605 | 602 | 600 | 597 | 595 | 593 | 591 | ||
Fluorophosphate glass | 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 |
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 | |
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 | |
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 | |
50% splits nm | 652 | 648 | 645 | 644 | 641 | 638 | 636 | 623 | 620 | 617 | 614 | 611 | 609 | 607 | 605 | ||
Phosphate glass | 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 |
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 | |
50% splits nm | 646 | 643 | 639 | 636 | 634 | 631 | 628 | 620 | 618 | 615 | 609 | 607 | 604 | 599 | 595 |