Intermediate infrared transmission optical filter and preparation method thereof
The invention discloses an intermediate infrared transmission optical filter and a preparation method thereof, and belongs to the technical field of coating. The optical filter comprises a glass substrate, a narrow-band-pass film system arranged on one side of the glass substrate, and a long-wave-pa...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
02.10.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses an intermediate infrared transmission optical filter and a preparation method thereof, and belongs to the technical field of coating. The optical filter comprises a glass substrate, a narrow-band-pass film system arranged on one side of the glass substrate, and a long-wave-pass film system arranged on the other side of the glass substrate. The narrow-band-pass film system comprises silicon hydroxide/silicon oxynitride film layers and silicon oxide film layers which are alternately deposited layer by layer; the long-wave-pass film system comprises silicon hydroxide/silicon oxynitride film layers and silicon oxide film layers which are alternately deposited layer by layer. The method comprises the following steps: depositing the narrow-band-pass film system on one side of the glass substrate by adopting a magnetron sputtering method, and depositing the long-wave-pass film system on the other side of the glass substrate. The optical filter provided by the inventioncan have high transmitta |
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Bibliography: | Application Number: CN202010506374 |