OPTICAL FILM AND OPTICAL LAMINATE USING SAME

• Main Authors: FUJISAWA HIDEYOSHI, TANAKA KOUICHI, MURAI KATSUYUKI, NAKAMURA KYOUSUKE, YAHAGI YOSHIYUKI, GOTOU TAKUYA, MITSUHATA KAZUHISA
• Format: Patent
• Language: English; Korean
• Published: 10.03.2017
• Subjects: CONTACT LENSES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; TRANSPORTING

[과제] 본 발명은, 콜레스테릭 액정층을 갖는 편광 선글라스 등의 아이웨어에 있어서, 원편광에 수반되는 편광 소자의 광흡수능 저하를 억제하고, 나아가서는 피지나 수분 또는 바닷바람과 같은 외적인 열화 인자의 영향을 받는 일이 없는, 메탈릭한 색조와 방현성을 갖는 아이웨어를 제공한다. [해결 수단] 우감기 나선 배향을 갖는 콜레스테릭 액정층으로 이루어지는 광반사층 R, 좌감기 나선 배향을 갖는 콜레스테릭 액정층으로 이루어지는 광반사층 L 및 편광 소자층을 구비하는 것을 특징으로 하는 광학 필름. [Problem] The present invention provides eyewear, such as polarized sunglasses, having cholesteric liquid crystal layers, wherein the eyewear has a metallic tone and antiglare properties, minimizes the reduction in light-polarizing element absorptive capability that is associated with circular polarization, and is moreover unaffected by external degrading factors such as sebum, moisture, and salt air. [Solution] This optical film is characterized by being provided with a light-reflecting layer R comprising a cholesteric liquid crystal layer that has right-handed helical orientation, a light-reflecting layer L comprising a cholesteric liquid crystal layer that has left-handed helical orientation, and a polarizing element layer.