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MidOpt BP Series Filter BP880

Uniforce Product

Salient Features

Near-IR Bandpass Filter

Recommended when using high-power 860-880nm infrared LED lighting or 905-920nm laser diodes, this filter also features high peak transmission and rugged coatings that provide added environmental stability.

BP880 Near-IR Bandpass Filter MidOpt_BP880_Trans_Graphic

  • Useful Range : 845-930nm
  • FWHM : 130nm
  • Tolerance : +/- 10nm
  • Minimum Peak Transmission : >90%
  • Surface Quality : 40/20
  • Compatible LED : 880nm

The performance of a filter is based on what happens to light passing through the filter. The apparent color of light reflected off the surface is not a reliable way to judge the filter’s capabilities. Batch-to-batch difference in the apparent color of the coatings or filter substrates can often be easily seen when looking at two examples of the same filter type. The color of the coating does not indicate a disparity in performance.

Transmission DataStablEdgeAvailable MountsLearn MoreQuote Request

BP880 Transmission Data

wavelength transmission wavelength transmission
(nm) (%) (nm) (%)
1100 14.25 720 0
1090 14.87 710 0
1080 15.75 700 0
1070 16.81 690 0
1060 18.12 680 0
1050 19.74 670 0
1040 21.72 660 0
1030 24.19 650 0
1020 27.27 640 0
1010 30.97 630 0
1000 35.45 620 0
990 40.73 610 0
980 47 600 0
970 54.19 590 0
960 61.9 580 0
950 70.04 570 0
940 78.29 560 0
930 85.87 550 0
920 91.19 540 0
910 94.94 530 0
900 97.21 520 0
890 97.99 510 0
880 97.3 500 0
870 95.13 490 0
860 91.47 480 0
850 83.73 470 0
840 67.51 460 0
830 41.96 450 0
820 17.15 440 0
810 4.09 430 0
800 0.66 420 0
790 0.09 410 0
780 0.02 400 0
770 0.01 390 0
760 0 380 0
750 0 370 0
740 0 360 0
730 0 350 0

midopt_stabledge-filter-ex

Click Pic to Enlarge

MidOpt StablEDGE™ optical filters are specifically designed to be less  susceptible to effects from angular shifting seen when optical filters are placed in front of short focal length (<12 mm) camera lenses.
StablEDGE™ filters take advantage of absorptive filter glass to form the leading
edge of the filter passband.This assures no shifting in this region, even when the
lens FOV exceeds 100°.StablEDGE™ designs are  less angle-of-incidence sensitive, inherently more rugged, and are environmentally stable.

midopt_stableEdge_logo

Available Mounts

Threaded Mount

  • Designed for lenses with filter threads, a variety of filter types and stock threaded sizes are available: M13.25-M105
  • Larger sizes, 62mm to 105mm, are made to order and are not returnable
  • Custom thread sizes are available upon request.
  • Threaded mounts are available as black anodized aluminum rings. Rotating mounts with locking thumb screws are generally provided.

Ordering Example:

  • Filter: BP470
  • Mount Size: M27

Correct Part# is:

  • BP470-27

Threaded Mount Technical Drawing PDF

Slip Mount

  • Designed for varifocal lenses, wide angle lenses and lenses without filter threads
  • Accommodates standard threaded mounts
  • Low profile and oversize diameter design prevents wide angle lens vignetting
  • Locking set screws and a wrench are provided to secure the adapter to the lens
  • Many varifocal and shorter fixed focal length (wide angle) lenses are not supplied with filter threads due to the presence of a protruding, strongly convex lens element. Our slip mount adapters allow standard threaded filters to be fitted securely to these and a large variety of lenses that do not have filter threads provided.

Ordering Example:

  • Filter: BP470
  • Outside Diameter of Lens in mm: 43mm

Correct Part# is:

  • BP470-S43

Slip Mount Technical Drawing PDF

C/CS Camera Mount

midopt-c-mount

  • Designed to thread directly into any C/CS mount camera between the lens and sensor
  • Wrenching slots aid in threading the filter into the camera body. A wrench is supplied with each filter.
  • Helpful in applications with space constraints
  • Can be used with wide angle lenses that do not accept filters at the front end to prevent vignetting
  • C/CS mount filters are available in a standard 1mm thickness

Ordering Example: 

  • Filter: BP470
  • Mount Size: 25.4

Correct Part# is:

  • BP470-25.4

C/CS Camera Mount Technical Drawing PDF

 Unmounted  & Custom Size

midopt-unmounted

  • Any MidOpt filter type can be provided as an Unmounted filter
  • Custom shapes and sizes are typically fabricated with one day to two week lead times
  • Custom filter types with longer lead times can also be quoted. Please contact us regarding feasibility.

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