850nm带通滤光片

Use CWL 850nm with 40–100nm FWHM for NIR LED illumination, machine vision, night-vision imaging, or camera-based inspection.

850nm LEDs have broader emission than laser or VCSEL sources. Wider filters help keep usable NIR illumination for cameras while reducing visible light and unwanted spectral background. Use 40–50nm FWHM for more controlled NIR illumination, or 70–100nm FWHM when image brightness is the main requirement.

Use CWL 850nm with 1.2–10nm FWHM for 850nm VCSEL or laser diode signal isolation.

850nm VCSELs and laser diodes are narrow sources compared with LEDs. For source cleanup or receiver-side isolation, key specs include CWL match, FWHM, transmission at 850nm, and OD blocking across the detector-sensitive wavelength range.

Use CWL 850nm with 40–100nm FWHM for NIR machine vision, surveillance imaging, alignment, or contrast enhancement.

For CMOS and CCD camera systems, 850nm filters can help isolate the NIR illumination band and reduce visible-light background. Wider FWHM options are often practical when the task depends on image brightness, contrast, and stable camera response.

Use CWL 850nm with 10–30nm FWHM before a silicon photodiode, CMOS/CCD camera, or NIR-sensitive detector when the target signal is near 850nm.

For detector-side filtering, the filter improves signal-to-background ratio by passing the 850nm signal and reducing unwanted ambient or source background. Use 10nm FWHM for stronger 850nm isolation, or 20–30nm FWHM when more signal level is needed.