OPTCAL LAMINATE AND EYEWEAR USING SAME

To provide an optical laminate that exhibits an achromatic silver color even when observed from any angle in the case of using an optical laminate including a cholesteric liquid crystal layer exhibiting a silver color, and a polarizing lens and eyewear using the same.An optical laminate for eyewear...

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Bibliographische Detailangaben
Hauptverfasser: KAWASHIMA, Takashi, TANAKA, Koichi, SEGAWA, Junichi, NUMA, Yosuke, KAKINUMA, Yuka
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:To provide an optical laminate that exhibits an achromatic silver color even when observed from any angle in the case of using an optical laminate including a cholesteric liquid crystal layer exhibiting a silver color, and a polarizing lens and eyewear using the same.An optical laminate for eyewear includes a light reflecting layer comprising at least one cholesteric liquid crystal layer; and a support sandwiching the light reflecting layer, in which a reflection hue of the light reflecting layer exhibits a silver color, the light reflecting layer has a reflection characteristic over a wavelength range of at least 380 nm to 900 nm, and an absolute value of a difference (ΔR1 - R2) between an average reflectance (R1) at 500 nm to 700 nm and an average reflectance (R2) at 701 nm to 900 nm of the light reflecting layer is 10 points or less in the wavelength range.