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近红外吸收滤光片可以用于夜视兼容照明器件。为了研制夜视兼容近红外吸收滤光片,将一种菁染料均匀掺杂在透明塑料聚甲基丙烯酸甲酯(PMMA)中制备了近红外吸收滤光片,研究了菁染料的掺杂量对近红外吸收滤光片夜视兼容能力的影响。结果表明,随着菁染料掺杂量的增加,近红外吸收滤光片的可见光透过率逐渐下降,在近红外区域的吸收能力逐渐增加,光谱辐亮度夜视兼容值逐渐减小且朝着有利于满足夜视兼容要求的方向移动;将菁染料与普通塑料用染料透明黄GS、透明蓝AP-FW配合使用,成功制备出了一种绿色夜视兼容近红外滤光片,该滤光片不仅颜色满足军标中夜视绿A的要求,光谱辐亮度夜视兼容值为9.22×10-12,满足军标中对光谱辐亮度的要求,而且具备优异的光稳定性能。
NIR absorption filters can be used for night vision compatible lighting devices. In order to develop night vision compatible near-infrared absorption filter, a kind of cyanine dye is uniformly doped in transparent plastic polymethylmethacrylate (PMMA) to prepare a near infrared absorption filter. The doping amount of cyanine dye Impact on near-infrared absorption night vision compatibility. The results show that with the increase of doping amount of cyanine dye, the visible light transmittance of NIR filter gradually decreases and its absorption capacity in the near infrared region increases gradually, and the compatible value of night vision of spectral radiance decreases gradually Is conducive to meet the night vision compatibility requirements of the direction of movement; the cyanine dyes and general plastics with a transparent yellow GS, transparent blue AP-FW with the successful preparation of a green night vision compatible near-infrared filter, the filter The film not only meets the requirements of military standard Nightscape Green A, but also has a spectral night vision compatibility of 9.22 × 10-12, which meets the requirements of the military standard for spectral radiance and has excellent light stability.