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1. 发明申请

US20080239501A1 COLOR-SEPARATION OPTICAL SYSTEM AND IMAGING APPARATUS 有权
标题翻译：颜色分离光学系统和成像设备
公开(公告)号：US20080239501A1
公开(公告)日：2008-10-02
申请号：US12049902
申请日：2008-03-17
申请人： Arihiro SAITA , Shuji Akiya , Etsuo Terayama
发明人： Arihiro SAITA , Shuji Akiya , Etsuo Terayama
IPC分类号： G02B27/14
CPC分类号： G02B27/0018 , G02B5/04 , G02B27/1013 , G02B27/142 , G02B27/145 , H04N9/097
摘要： A curve representing a characteristic of a blue-light reflecting dichroic film DB and a curve representing a characteristic of a red-light reflecting dichroic film DR are configured to have shapes that track an ideal spectral characteristic of green. Accordingly, it is possible to obtain a characteristic approximated to the ideal spectral characteristic without using a trimming filter having a dichroic film in an exiting surface of a prism. Since it is not necessary to use the trimming filter having the dichroic film, it is possible to prevent ghost and flare from occurring due to the dichroic film of the trimming filter. Accordingly, it is possible to embody an imaging apparatus having the ideal spectral characteristic with ghost and flare being reduced.
摘要翻译：表示蓝光反射分色膜DB的特性的曲线和表示红光反射分色膜DR的特性的曲线被配置为具有跟踪绿色的理想光谱特性的形状。因此，可以获得近似于理想光谱特性的特性，而不使用在棱镜的出射表面中具有二向色膜的修整滤光片。由于不需要使用具有二向色膜的修整过滤器，因此可以防止由于修整过滤器的二向色膜引起的重影和闪光。因此，可以实现具有幽灵和耀斑的理想光谱特性的成像装置。

2. 发明申请

US20090086324A1 COLOR SEPARATION OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS 有权
标题翻译：彩色分离光学系统和图像拾取装置
公开(公告)号：US20090086324A1
公开(公告)日：2009-04-02
申请号：US12208860
申请日：2008-09-11
申请人： Arihiro SAITA , Shuji Akiya
发明人： Arihiro SAITA , Shuji Akiya
IPC分类号： G02B5/28
CPC分类号： G02B27/145 , G02B27/1013 , G02B27/142
摘要： It is disclosed that a color separation optical system improves color reproducibility by obtaining a characteristic which approximates an ideal spectral characteristic in view of influence of polarization separation caused according to the magnitude of an incidence angle. In the color separation optical system, a curve representing a characteristic of a green-reflecting dichroic film DG has a shape along the characteristic curve representing an ideal spectral characteristic corresponding to green light. Further, the characteristic of the blue-reflecting dichroic film DB is associated with that of the green-reflecting dichroic film DG. A part, in which the transmittance of the blue-reflecting dichroic film DB changes from a low transmittance to a high transmittance, in the transmittance characteristic curve representing the characteristic of the blue-reflecting dichroic film DB is included in a predetermined wavelength region associated with the characteristic of the green-reflecting dichroic film DG.
摘要翻译：公开了通过根据入射角的大小导致的偏振影响的影响，通过获得近似理想的光谱特性的特性，可以提高色分离光学系统的色彩再现性。在分色光学系统中，表示绿色反射分色膜DG的特性的曲线具有表示对应于绿色光的理想光谱特性的特性曲线的形状。此外，蓝色反射分色膜DB的特性与绿色反射分色膜DG的特性相关。在表示蓝色反射分色膜DB的特性的透射率特性曲线中，蓝色反射分色膜DB的透射率从低透射率向高透射率变化的部分包括在与绿色反射二向色膜DG的特点。

3. 发明申请

US20120050877A1 COLOR SEPARATING OPTICAL SYSTEM 有权
标题翻译：颜色分离光学系统
公开(公告)号：US20120050877A1
公开(公告)日：2012-03-01
申请号：US13187030
申请日：2011-07-20
申请人： Arihiro SAITA
发明人： Arihiro SAITA
IPC分类号： G02B27/14
CPC分类号： G02B27/145 , G02B27/0018 , G02B27/1013
摘要： A color separating optical system including first to third prisms for separating incident light from an objective lens into three primary color light components, so as to project three color-separated images of a subject onto first to third image sensors, respectively. In order to prevent ghosts from being superposed on a center area of an image frame, the color separating optical system satisfies the condition: α≈(βm+βm+1)/2, wherein “α” represents a tilt angle of a second dichroic film on the second prism to a perpendicular plane to an optical axis of the objective lens, and “βm” a diffraction angle of the second light component diffractively reflected from the second image sensor and reentering the second prism.
摘要翻译：一种分色光学系统，包括第一至第三棱镜，用于将来自物镜的入射光分离成三原色光成分，以将三维色分离的被摄体的图像分别投影到第一至第三图像传感器上。为了防止重影被叠加在图像帧的中心区域上，分色光学系统满足条件：α≈（＆bgr; m +＆bgr; m + 1）/ 2，其中“α”表示倾斜角第二棱镜上的第二分色膜与物镜的光轴垂直的平面，“＆bgr”m“从第二图像传感器衍射的第二光分量的衍射角并重新进入第二棱镜。

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