VARIABLE OPTICAL FILTER AND WAVELENGTH-SELECTIVE SENSOR BASED THEREON
To alleviate the tradeoff between thickness and optical performance of a variable optical filter.SOLUTION: An optical filter is provided, comprising a transparent substrate, a first filter comprising a stack of alternating first layers and second layers, and a second filter, the first layers contain...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To alleviate the tradeoff between thickness and optical performance of a variable optical filter.SOLUTION: An optical filter is provided, comprising a transparent substrate, a first filter comprising a stack of alternating first layers and second layers, and a second filter, the first layers containing a first material, the second layers containing a second material, and the stack containing at least one of silicon, silicon dioxide (SiO2), and tantalum pentoxide (Ta2O5).SELECTED DRAWING: Figure 2
【課題】可変光学フィルターの厚さと光学的な性能との間のトレードオフを緩和することである。【解決手段】この光学フィルターは、透明な基板と、交互の第１の層および第２の層のスタックを含む第１のフィルターであって、第１の層が第１の材料を含み、第２の層が第２の材料を含み、スタックがシリコン、二酸化ケイ素（ＳｉＯ２）または五酸化タンタル（Ｔａ２Ｏ５）の少なくとも１つを含む第１のフィルターと、第２のフィルターと、を備えるものである。【選択図】図２ |
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