IWBP13000-13600-Infrared broad-band pass filter

Key Parameters and Special Features Spectral Range;

Spectral Range: The filter’s essential feature is its range design which usually spans from 0 0 micrometers to 12 micrometers in the infrared spectrum range. However depending on the application needs this range can be customized to cater to broader or more focused requirements for different applications.

Center Wavelength: This crucial wavelength marks the optimal performance threshold of the filter in real-world applications. In the case of broadband filters, the center wavelength typically falls around an intermediate value within its wide transmission range although this exact value can be subtly impacted by the filter’s design and production methods.

Transmittance: This parameter is a factor as it indicates how much light is lost once it travels through the filter. Within the filter’s transmission wavelength range, for light, it demonstrates very high transmittance levels to enable efficient passage of infrared light rays. Peak transmittance (Tp) a crucial measure of filter performance among indicators needs to exceed 85% to maximize light utilization effectively.

Full Width at Half Maximum (FWHM): This parameter is an indicator that demonstrates the transmission wavelength width of a filter. Half of the transmittance corresponds to a range of wavelengths in infrared broadband filters covering diverse applications with a wider FWHM, i.e., they encompass an extensive range of infrared wavelengths, for meeting varied application requirements adequately explained by cutoff rate implications.

Cutoff Rate: The cutoff wavelength in a filter describes how well it transmits light at that point of transition in performance terms. In the case of infrared broadband filters usually the cutoff wavelength falls outside the range of transmitted wavelengths. A lower rate at this cutoff point enhances the filter’s ability to block light of wavelengths effectively.

Infrared broad – bandpass filters have remarkable advantages. They can precisely isolate and transmit specific infrared wavelengths while blocking unwanted ones, greatly enhancing the signal – to – noise ratio and resulting in clearer imaging. Their high optical density effectively attenuates non – target light, ensuring accurate optical measurements. Made of high – quality materials, they maintain stable performance in various temperature and humidity conditions. With a compact and lightweight design, they are easy to integrate into different optical devices, especially suitable for space – constrained or portable equipment. Moreover, they are highly versatile and widely used in fields such as astronomy, medical imaging, and environmental monitoring.