940 nm IR Band Pass Filter ToF

940 nm IR Band Pass Filter ToF940nm narrow Band Pass Filter is a classic laser infrared filter, which is mostly used for CO2 laser excitation. At the same time, 940nm filter is also widely used in video security monitoring filter solutions This D4.9×1 mm, 940 nm bandpass filter is a compact, interference-type optical component specifically designed to transmit a narrow near-infrared (NIR) wavelength window centered at 940 nm while effectively blocking visible (VIS) and out-of-band infrared (IR) radiation. It is particularly suitable for applications such as time-of-flight (ToF) depth cameras, 3D sensing, proximity detection, eye-tracking systems, and NIR imaging technologies.The selection of 940 nm is intentional. In outdoor environments, operating ToF systems at 940 nm enhances resistance to ambient light interference. Furthermore, technical documentation from industrial ToF camera manufacturers indicates reduced solar noise near this wavelength.On the detection side, silicon-based s…