MidOpt Bi Series Filter Bi405
Uniforce Product
Salient Features
Violet Interference Bandpass Filter
Bi405 Violet Interference Bandpass Filter
- Useful Range : 400-415nm
- FWHM : 25nm
- Tolerance : +/- 5nm
- Minimum Peak Transmission : ≥85%
- Surface Quality : 40/20
Bi405 Violet Interference Bandpass filters can be beneficial in removing ambient light in order to image subjects illuminated with 405nm laser diodes. 405nm wavelength is commonly used in Blu-ray applications similar to blacklite filters. This filter is also used in fluorescence applications.
Bi405 Transmission Data
wavelength | transmission | wavelength | transmission |
(nm) | (%) | (nm) | (%) |
1100 | 0.24 | 720 | 0.04 |
1090 | 0.36 | 710 | 0.05 |
1080 | 0.26 | 700 | 0.12 |
1070 | 0.17 | 690 | 0.15 |
1060 | 0.14 | 680 | 0.11 |
1050 | 0.13 | 670 | 0.05 |
1040 | 0.21 | 660 | 0.06 |
1030 | 0.37 | 650 | 0.04 |
1020 | 0.16 | 640 | 0.03 |
1010 | 0.13 | 630 | 0.06 |
1000 | 0.19 | 620 | 0.06 |
990 | 0.22 | 610 | 0.03 |
980 | 0.23 | 600 | 0.07 |
970 | 0.20 | 590 | 0.04 |
960 | 0.28 | 580 | 0.14 |
950 | 0.31 | 570 | 0.07 |
940 | 0.20 | 560 | 0.06 |
930 | 0.39 | 550 | 0.09 |
920 | 0.26 | 540 | 0.14 |
910 | 0.34 | 530 | 0.10 |
900 | 0.54 | 520 | 0.10 |
890 | 0.38 | 510 | 0.07 |
880 | 0.93 | 500 | 0.04 |
870 | 0.57 | 490 | 0.05 |
860 | 0.10 | 480 | 0.07 |
850 | 0.02 | 470 | 0.06 |
840 | 0.02 | 460 | 0.05 |
830 | 0.02 | 450 | 0.12 |
820 | 0.05 | 440 | 0.05 |
810 | 0.11 | 430 | 0.20 |
800 | 0.08 | 420 | 44.67 |
790 | 0.04 | 410 | 89.84 |
780 | 0.03 | 400 | 77.67 |
770 | 0.06 | 390 | 4.75 |
760 | 0.06 | 380 | 0.04 |
750 | 0.04 | 370 | 0.02 |
740 | 0.20 | 360 | 0.03 |
730 | 0.10 | 350 | 0.09 |
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