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专利名称：Optical member and optical apparatus发明人：井場 洋貴,添田 泰之,奥野 孝行,木津 巧一申请号：JP2019029698申请日：20190221公开号：JP2019144552A公开日：20190829
摘要：Problem to be solved: to provide an optical member having an anti reflectionfilm excellent in performance balance of heat resistance and high temperature and highhumidity. The optical member of the present invention comprisesResin substrate andIt isprovided on at least one surface of the resin substrate andA high refractive index layerformed by a high index material containing titanium oxide andA low index layer formed bya low index material containing SiO2 andAn anti reflection film having an alternatingcurrentEquipped withThe total thickness of the antireflection film is in the range of 300nm to 600 nmIn the antireflection filmWhen the layer closest to the resin substrate is theinnermost index layerThe range of the thickness of the inmost refractive index layeroccupied in the total thickness of the antireflection film is in the range of 30% to 70% orless.The film thickness of the low refractive index layer in the total thickness of theantireflection film is in the range of 50% or more to 90% or less.No selection
申请人：三井化学株式会社
地址：東京都港区東新橋一丁目５番２号
国籍：JP
代理人：速水 進治
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