To describe a multilayer reflective polarizer, specifically, disclose a multilayer reflective polarizer including both a crystalline high-refractive index layer and low-refractive index layer.SOLUTION: A multilayer reflective polarizer includes a plurality of alternative first polymer layers and second polymer layers. Each of the first polymer layer and second polymer layer has in-plane birefringence of at least 0.01. A difference in a refractive index between each of the first polymer layer and the second polymer layer is at least 0.04 with respect to at least one in-plane direction. A difference in the refractive index between each of the first polymer layer and the second polymer layer is less than 0.04 with respect to a second in-plane direction orthogonal to the at least one in-plane direction. The multilayer reflective polarizer has at least four edges, in which a refractive index measured at 550 nm concerning any of the first polymer layer or the second polymer layer does not exceed 1.7.EFFECT: These reflective polarizers can be particularly suitable for automotive, architectural, and industrial applications.SELECTED DRAWING: Figure 1

    【課題】多層反射偏光子について記載されている。特に、結晶性の高屈折率層及び低屈折率層の両方を含む多層反射偏光子が開示される。【解決手段】多層反射偏光子は、複数の交互の第1のポリマー層及び第2のポリマー層を含む。第1のポリマー層及び第2のポリマー層のそれぞれは、少なくとも0.01の面内複屈折を有する。少なくとも1つの面内方向に対して、第1のポリマー層及び第2のポリマー層のそれぞれの間の屈折率の差は少なくとも0.04である。少なくとも1つの面内方向に直交する第2の面内方向に対して、第1のポリマー層及び第2のポリマー層のそれぞれの間の屈折率の差は0.04未満である。多層反射偏光子は、少なくとも4つのエッジを有し、第1のポリマー層又は第2のポリマー層のいずれについても、550nmで測定される屈折率が1.7を超えない。【効果】これらの反射偏光子は、自動車、建築、及び工業用途に特に好適であり得る。【選択図】図1


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    Titel :

    MULTILAYER REFLECTIVE POLARIZER WITH CRYSTALLINE LOW REFRACTIVE INDEX LAYERS


    Weitere Titelangaben:

    結晶性低屈折率層を有する多層反射偏光子


    Beteiligte:
    MATTHEW B JOHNSON (Autor:in) / ADAM D HAAG (Autor:in) / CARL A STOVER (Autor:in) / NEVITT TIMOTHY J (Autor:in) / WILLIAM F EDMONDS (Autor:in) / JOHNSON STEPHEN A (Autor:in)

    Erscheinungsdatum :

    2024-04-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge



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