It is a manual wavelength selector that allows control of the central wavelength and bandwidth using the proprietary TwinFilm technology.
The FWS-Manual series is a manually adjustable variable filter that utilizes TwinFilm technology. It features the imaging capability of a bandpass filter along with the wavelength adjustment function of a diffraction grating monochromator. This filter is manually adjustable and equipped with three notched knobs. Two are for adjusting the center wavelength and the transmission bandwidth, while the third is for offset correction of the beam direction. 【Features】 - Extensive wavelength lineup - Excellent transmission rate > 75% - High out-of-band extinction ratio (10^6) - Adjustable bandwidth from 3 to 15 nm - Uniformity over 95% of a large aperture (up to Φ10 mm) - Offset correction optics ensure no walk-off even with wavelength changes - Easy installation
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basic information
【Main Specifications】 - Aperture: Φ 5 mm - Blocking: OD 6 * F00 - F02: Blocks up to 600 nm * F03 - F15: Blocks up to 1700 nm - Transmittance: 75% (proportional to input light amount, FWHM > 10 nm) - Adjustable wavelength range: 255-1650 nm
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Applications/Examples of results
- Wavelength-tunable light source of broadband light sources - Fluorescence imaging - Hyperspectral imaging
Detailed information
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Adjustment and switching of wavelength range
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Bandwidth adjustment and switching
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A high blocking rate (OD 6) allows for the avoidance of unwanted spectral leakage specific to AOTF and the associated background noise.
Line up（16）
| Model number | overview |
|---|---|
| FWS-B-F00 | Wavelength range 255 - 290 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F01 | Wavelength range 280 - 310 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F02 | Wavelength range 310 - 350 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F03 | Wavelength range 348 - 390 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F04 | Wavelength range 385 - 435 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F05 | Wavelength range 430 - 490 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F06 | Wavelength range 485 - 550 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F07 | Wavelength range 545 - 620 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F08 | Wavelength range 615 - 700 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F09 | Wavelength range 690 - 790 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F10 | Wavelength range 775 - 890 nm, FWHM 3 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F11 | Wavelength range 880 - 1015 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F12 | Wavelength range 1000 - 1150 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F13 | Wavelength range 1140 - 1310 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F14 | Wavelength range 1300 - 1500 nm, FWHM 5 - 15 nm, Aperture Φ 5 mm |
| FWS-B-F15 | Wavelength range 1475 - 1650 nm, FWHM 7 - 13 nm, Aperture Φ 5 mm |
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Company information
MSH Systems Co., Ltd. introduces and provides cutting-edge scientific technologies and their products from both domestic and international sources to universities, research institutions, and corporate clients in Japan as quickly as possible, contributing to the realization of a richer future society. With 30 years of sales and service experience in the science and technology fields, along with strong trust relationships and responsible execution with our clients, we will act with all our efforts to become a good partner for everyone. Our ultimate goal is to ensure the satisfaction of not only our customers and manufacturers but also everyone involved with us.