It is a manual wavelength selector that allows control of the center wavelength and bandwidth using the proprietary technology TwinFilm.
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. It is a manually adjustable filter equipped with two notched knobs. One adjusts the center wavelength with a fixed bandwidth of approximately 20 nm, while the other performs offset correction for the beam direction. 【Features】 - Extensive wavelength lineup - Excellent transmittance > 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 accompanying background noise.
Line up（16）
| Model number | overview |
|---|---|
| FWS-CL-F00 | Wavelength range 255 - 290 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F01 | Wavelength range 280 - 310 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F02 | Wavelength range 310 - 350 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F03 | Wavelength range 348 - 390 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F04 | Wavelength range 385 - 435 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F05 | Wavelength range 430 - 490 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F06 | Wavelength range 485 - 550 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F07 | Wavelength range 545 - 620 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F08 | Wavelength range 615 - 700 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F09 | Wavelength range 690 - 790 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F10 | Wavelength range 775 - 890 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F11 | Wavelength range 880 - 1015 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F12 | Wavelength range 1000 - 1150 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F13 | Wavelength range 1140 - 1310 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F14 | Wavelength range 1300 - 1500 nm, FWHM 20 nm, aperture Φ 5 mm |
| FWS-CL-F15 | Wavelength range 1475 - 1650 nm, FWHM 20 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.