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鍍膜
Coating
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濾光片可用來選擇性地透射或截止某個波長或波長范圍。
| 鍍膜類型 | 性能和應用 | |
| 濾光膜層 | 反射型中性密度片 | Reflective ND filters consist of thin film optical coatings, typically metallic, that have been applied to a glass substrate. The coating can be optimized for specific wavelength ranges such as UV-VIS or NIR. The thin film coating primarily reflects light back toward the source. |
| 帶通濾光膜層 | Bandpass filters are optical elements that are designed to transmit a specific spectral band with high efficiency, while reject others. The characteristics of the bandpass are controlled by multilayer dielectric coatings. | |
| 激光干涉膜層 | Laser line filters are narrow bandpass filters centered on the resonance of the laser, which attenuate the background plasma and secondary emissions that often result in erroneous signals. | |
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