BP590
Orange Bandpass Filter

Recommended for use with amber/orange LEDs and fluorescence imaging

BP590 single substrate, hard-coated filters are recommended for use in systems that use amber or orange LED lighting. They are also very widely used in fluorescence imaging applications, particularly with certain inks and ethidium bromide, Qdot 605 and other similar stains.

As with all MidOpt bandpass filters, peak transmission is greater than 90%. Blocking of shorter AND longer wavelengths averages >99% when used in conjunction with any sensor that has a typical silicon response. This is particularly important in situations where infrared light may be present. Orange longpass filters have traditionally been recommended for these applications, but they offer no such IR blocking and therefore contrast can suffer.

Example:

(left) Monochrome image of a mailing envelope does not record the subject.
(right) With LED and filter combination, the postal bar codes become readily visible.

More examples

Download Excel Spreadsheet with data and curve for this filter.

Standard Threaded Mounts:
We offer standard filter sizes from stock – 22.5mm to 62mm – for same- or next-day shipping. Larger filters – 67mm to 105mm – are made to order and are normally not returnable.

Click here for PDF drawing of standard mounts

Slip Mounts:
If your lens does not have threads for mounting a filter, Slip Mount adapters are available. Slip Mounts can attach a regular filter to a lens or attach a very large filter to accommodate a wide angle lens. Please call to order Slip Mount adapters.

C-Mounts:
3mm thick threaded mount for adding a filter between lens and camera
Click here for PDF drawing of c-mounts

Transmission chart (typical)
Passes 555-615nm
Absorbs 200-550nm
Reflects 620-1090nm

1100
1090
1080
1070
1060
1050
1040
1030
1020
1010

1000
990
980
970
960
950
940
930
920
910

900
890
880
870
860
850
840
830
820
810

800
790
780
770
760
750
740
730
720
710

700
690
680
670
660

43.49
35.87
20.78
9.66
4.79
2.75
1.58
1.06
0.83
0.71

0.63
0.83
0.87
0.71
0.31
0.04
0.00
0.00
0.00
0.07

0.00
0.00
0.20
0.33
0.08
0.02
0.01
0.00
0.00
0.02

0.02
0.07
0.21
0.29
0.12
0.10
0.15
0.22
0.20
0.14

0.17
0.25
0.45
0.65
0.87

650
640
630
620
610
600
590
580
570
560

550
540
530
520
510
500
490
480
470
460

450
440
430
420
410
400
390
380
370
360

350
340
330
320
310
300
290
280
270
260

250
240
230
220
210

1.54
3.60
9.64
27.07
68.94
94.63
94.76
93.14
90.32
78.91

46.55
6.45
0.51
0.25
0.18
0.08
0.01
0.00
0.00
0.00

0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00

0.02
0.02
0.00
0.01
0.00
0.00
0.00
0.00
0.00
0.00

0.00
0.00
0.00
0.00
0.03