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1. 发明授权

US09513417B2 Optical filter and optical apparatus 有权
标题翻译：光学滤光片和光学仪器
公开(公告)号：US09513417B2
公开(公告)日：2016-12-06
申请号：US14443191
申请日：2013-11-18
申请人： CANON DENSHI KABUSHIKI KAISHA
发明人： Masayuki Uchiyama , Michio Yanagi
IPC分类号： G02B5/22 , G02B1/115 , G02B1/118 , G02B5/20 , G02B3/00 , G03B11/00
CPC分类号： G02B5/22 , G02B1/115 , G02B1/118 , G02B3/0087 , G02B5/205 , G03B11/00
摘要： Regarding an optical filter comprising a light-transmitting substrate, a gradient refractive index thin film with a refractive index change in the film thickness direction formed on the substrate and an anti-reflection structure formed on the gradient refractive index thin film, the gradient refractive index thin film is formed so as to have light absorbing characteristic and a refractive index characteristic such that the refractive index change comprising plural changing points with increases and decreases of the refractive index has a tendency to reduce from the side of the substrate toward the side of the anti-reflection structure. The optical filter has excellent environmental resistance and low reflection. The optical filter can be suitably used in an imaging optical system of an optical apparatus or a display of an electronic device.
摘要翻译：关于包含透光性基板的光学滤波器，在基板上形成的膜厚方向上的折射率变化的梯度折射率薄膜和形成在该梯度折射率薄膜上的抗反射结构，梯度折射率薄膜形成为具有光吸收特性和折射率特性，使得包含多个变化点的折射率变化点的折射率变化的增加和减小的倾斜度从基板的侧面朝向侧面减小防反射结构。光学滤波器具有优异的耐环境性和低反射性。光学滤波器可以适用于光学设备的成像光学系统或电子设备的显示器。

2. 发明申请

US20150268394A1 OPTICAL FILTER AND OPTICAL APPARATUS 有权
标题翻译：光学滤光片和光学设备
公开(公告)号：US20150268394A1
公开(公告)日：2015-09-24
申请号：US14443191
申请日：2013-11-18
申请人： CANON DENSHI KABUSHIKI KAISHA
发明人： Masayuki Uchiyama , Michio Yanagi
IPC分类号： G02B5/22 , G02B3/00 , G02B1/118
CPC分类号： G02B5/22 , G02B1/115 , G02B1/118 , G02B3/0087 , G02B5/205 , G03B11/00
摘要： Regarding an optical filter comprising a light-transmitting substrate, a gradient refractive index thin film with a refractive index change in the film thickness direction formed on the substrate and an anti-reflection structure formed on the gradient refractive index thin film, the gradient refractive index thin film is formed so as to have light absorbing characteristic and a refractive index characteristic such that the refractive index change comprising plural changing points with increases and decreases of the refractive index has a tendency to reduce from the side of the substrate toward the side of the anti-reflection structure. The optical filter has excellent environmental resistance and low reflection. The optical filter can be suitably used in an imaging optical system of an optical apparatus or a display of an electronic device.
摘要翻译：关于包含透光性基板的光学滤波器，在基板上形成的膜厚方向上的折射率变化的梯度折射率薄膜和形成在该梯度折射率薄膜上的抗反射结构，梯度折射率薄膜形成为具有光吸收特性和折射率特性，使得包含多个变化点的折射率变化点的折射率变化的增加和减小的倾斜度从基板的侧面朝向侧面减小防反射结构。光学滤波器具有优异的耐环境性和低反射性。光学滤波器可以适用于光学设备的成像光学系统或电子设备的显示器。

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