红外截止滤光片(IR-Cut FIlter)
IRCF即红外截止滤光片，放置在CMOS或CCD前端，主要功能为阻止部分红色光和近红外光进入到图像传感器，起到修正光线的作用用途:用途在于截止紫外光及红外光，仅使可见光透过，可以避免因紫外光及红外光对CCD&CMOS传感器成像时造成颜色失真、防止改善伪像(诡影)与莫尔条纹，使图像清晰稳定
应用领域:各种数字摄像头系统
IRCF, also known as infrared cut-off filter, is placed at the front end of CMOS or CCD. Its main function is to prevent some red and near-infrared light from entering the image sensor, and to correct the light. Its purpose is to cut off ultraviolet and infrared light, allowing only visible light to pass through. It can avoid color distortion caused by ultraviolet and infrared light when imaging CCD&CMOS sensors, prevent the improvement of false images (ghosting) and Moir é fringes, and make the image clear and stable
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性能与技术指标 |
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基底材料 |
N-BK7、D263T、K9等玻璃， |
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通光口径 |
>90% of diameter |
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面行精度 |
≤5个牛顿环； |
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平行度 |
≤0.01mm； |
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表面光洁度 |
60/40，40/20，20/10，0/4 可根据客户要求制作。 |
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光谱特性(单面镀膜，双面镀膜均可) |
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350nm-405nm Tmin<5%; 415±10nm T=50% 420-630nm Tmin>95% , Tave >98% ; 650±10nm T = 50% ; 720-1100nm Tave<3% ; 可根据客户要求制作。 |
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红外截止滤光片(IR-Cut Filter)常规光谱曲线(Conventional spectral curve of infrared cut filter:)：
