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一、3.2—4.9截止型滤光片Ⅰ.光学特性(见图1) 波长:3.2—4.9μm 峰值透射率:T_(peak)≥95％平均透射率:T_(ave)≥90％波长λ<2.6μmT(max)≤1％Ⅱ.稳定性和用途该产品性能良好;热稳定性高(能经受-196℃—+300℃的温度循环);化学性能稳定(可耐水和酸碱);机械强度大(达国家一级检查标准以上)。适用于该波段范围使用的光学系统和探测器上,消除背景干扰。83年8月通过鉴定。
I. 3.2-4.9 cut-off filter I. Optical properties (see Figure 1) Wavelength: 3.2-4.9μm Peak transmittance: T ≥ 95% Average transmittance: T_ (ave) ≥ 90% Wavelength λ < 2.6μmT (max) ≤1% Ⅱ. STABILITY AND USE The product has good performance, high thermal stability (can withstand temperature cycling from -196 ℃ to +300 ℃), chemical stability (water and acid and alkali resistant) High intensity (up to the national level inspection standards above). Suitable for optical systems and detectors used in this band, eliminating background interference. August 83 passed the appraisal.