NIR Bandpass Filters SP For 800 – 1100 nm
Description
NIR bandpass filters SP are used in various optical sensor applications. They block the visible ambient light on one hand and the long-wave infrared light on the other hand. Only the selected signal or measuring light from the near infrared (NIR) range may be transmitted. NIR bandpass filters SP are therefore key components in achieving excellent signal-to-noise ratios, which are relevant for optical measurements, distance measurement applications, or specific systems for gesture recognition (TOF, Time-of-Flight). These characteristics facilitate either precise distance measurement with a lower signal light intensity or measurements with increased sensitivity and higher precision at normal signal light intensity. Depending on the specific application and the utilized light source, the NIR bandpass filter can be customized in collaboration with the client in a cost-efficient manner. In addition, these filters can be equipped with patterned black chrome plating in order to further suppress interfering stray light or facilitate the measurement of pre-defined structures.
NIR Bandpass Filters SP For 800 – 1100 nm
Specifications |
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|---|---|
| Central Wavelength: | 1000 nm |
| Bandwidth (FWHM): | 75 nm |
| Peak Transmittance: | 95 % |
Applications
Gesture Recognition and Control for Automotive Applications
TOF Camera for Gesture Recognition and Control
Adaptive Cruise Control
Driver Assistance Camera
Light Curtains
Night Vision Systems
Range Finder
Remote Multi-Spectral Imaging
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Frequently Asked Questions
Yes, depending on the specific application and the utilized light source, the NIR bandpass filter can be customized in collaboration with the client in a cost-efficient manner.
NIR bandpass filters SP can be used for a range of applications, including range finder for golfing and hunting, distance meter for building and construction, automotive sensor systems such as Adaptive Cruise Control (ACC) and Lane Departure Warning (LDW), industrial safety systems (e.g. safety light curtains), gesture recognition and control for automotive applications, TOF camera for gesture recognition and control, driver assistance camera, light curtains, night vision systems, and remote multi-spectral imaging.
NIR bandpass filters SP are used in various optical sensor applications for blocking both ambient visible and the longer wavelength infrared light while selectively transmitting signal light of a specified near infrared (NIR) spectral range used for the sensing application.
The benefits of using NIR bandpass filters SP include excellent environmental stability, enabling superior signal-to-noise-ratio in NIR sensing applications, highly stable spectral characteristics, spectral design flexibility for central wavelength, transmission bandwidth, blocking ranges and levels, various customer-specific sizes and shapes on standard flat glass substrates, consistent volume production capabilities based on proven sputtering technology, and excellent long-term stability.
The typical spectral specification of NIR bandpass filters SP is Tavg < 10–5 300 – 600 nm, Tavg < 10–4 600 – 700 nm, Tavg < 1 % 700 – 800 nm, and Tavg > 85 % 865 ± 20 nm.