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提出了一种反射全息复合准直射式带通滤光片的方法。实验表明，这种复合式全息带通滤光片具有准直射式、高效率、可变带宽、可变峰值波长等优点，从理论上用布拉格条件对其可变带宽和可变峰值波长进行了分析。
A method of reflecting holographic composite collimator bandpass filter is proposed. Experiments show that this composite holographic band-pass filter has the advantages of collimation, high efficiency, variable bandwidth, variable peak wavelength and so on. In theory, its variable bandwidth and variable peak wavelength analysis.