MidOpt BP Series Filter BP810
Uniforce Product
Salient Features
BP810 (Limited Availability)
BP810 Near-IR Bandpass Filter
- Useful Range : 790-830nm
- FWHM : 65nm
- Tolerance : +/- 10nm
- Minimum Peak Transmission : >90%
- Surface Quality : 40/20
BP810 filters are designed for use in 800-830nm laser diode applications. They are insensitive to “blue shifting” experienced when using line or pattern generating lasers together with wide angle lenses. About 70% of cold therapy lasers used for the regeneration of damaged tissue that are out on the market operate at or near 810nm. Mounting this filter on a camera lens used in bright sunlight will better allow the laser beam to be imaged. However for a majority of 810nm applications, we normally recommend our BN810 Narrow Near-IR Bandpass Filter option as an alternative.
BP810 Transmission Data
| wavelength | transmission | wavelength | transmission |
| (nm) | (%) | (nm) | (%) |
| 1100 | 0.14 | 720 | 0.01 |
| 1090 | 0.07 | 710 | 0 |
| 1080 | 0.03 | 700 | 0 |
| 1070 | 0.01 | 690 | 0 |
| 1060 | 0.01 | 680 | 0 |
| 1050 | 0.00 | 670 | 0 |
| 1040 | 0.00 | 660 | 0 |
| 1030 | 0.00 | 650 | 0 |
| 1020 | 0.00 | 640 | 0.01 |
| 1010 | 0.00 | 630 | 0 |
| 1000 | 0.00 | 620 | 0 |
| 990 | 0.00 | 610 | 0 |
| 980 | 0.00 | 600 | 0 |
| 970 | 0.00 | 590 | 0 |
| 960 | 0.00 | 580 | 0 |
| 950 | 0.00 | 570 | 0 |
| 940 | 0.00 | 560 | 0 |
| 930 | 0.00 | 550 | 0 |
| 920 | 0.00 | 540 | 0 |
| 910 | 0.00 | 530 | 0 |
| 900 | 0.01 | 520 | 0 |
| 890 | 0.02 | 510 | 0 |
| 880 | 0.06 | 500 | 0 |
| 870 | 0.17 | 490 | 0 |
| 860 | 0.79 | 480 | 0 |
| 850 | 6.04 | 470 | 0 |
| 840 | 45.27 | 460 | 0 |
| 830 | 94.43 | 450 | 0.01 |
| 820 | 95.25 | 440 | 0 |
| 810 | 94.07 | 430 | 0 |
| 800 | 90.32 | 420 | 0 |
| 790 | 79.23 | 410 | 0.01 |
| 780 | 58.41 | 400 | 0.01 |
| 770 | 32.87 | 390 | 0 |
| 760 | 10.77 | 380 | 0 |
| 750 | 2.03 | 370 | 0 |
| 740 | 0.24 | 360 | 0 |
| 730 | 0.03 | 350 | 0.01 |
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
- 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
- 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.
Learn More About
› Color Separation for Monochrome Imaging
› Blocking Unwanted Light in Monochrome Imaging
› How Bandpass Filters Increase Resolution in Monochrome Imaging
