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发明授权
US07435020B2 Digital camera system, camera body of digital camera, and interchangeable lens 有权
数码相机系统，数码相机相机机身和可互换镜头

Digital camera system, camera body of digital camera, and interchangeable lens
摘要：
A camera system according to the present invention includes an image pickup device having an imaging surface of an imaging range with a predetermined aspect ratio, the image circle being set larger than the imaging range to include the imaging range therein, a mount portion to which the interchangeable lens is mounted, and an opening portion having an opening for allowing luminous flux from the interchangeable lens to pass through, being located at a position spaced from the imaging surface by a predetermined distance, wherein the size of the opening of the opening portion is equal to or larger than a square formed by connecting ends of segments tilted by an angle θ with respect to an optical axis diagonally from four corners of the imaging range and extended to the opening of the opening portion, and the angle θ satisfies: 12 degrees≦θ, wherein a distance between the opening of the opening portion and the imaging surface, herein referred to as flange back (FB), is: 35 mm≦FB≦50 mm.
摘要（中）：

根据本发明的照相机系统包括：图像拾取装置，具有具有预定长宽比的成像范围的成像表面，将图像圆设置为大于成像范围，以包括其中的成像范围;安装部， 并且具有用于允许来自可互换镜头的光通量的开口的开口部分位于与成像表面隔开预定距离的位置，其中开口部分的开口尺寸为 等于或大于由成像范围的四个角的斜角相对于光轴倾斜角度θ的部分的端部延伸到开口部分的开口形成的方形，并且角度θ满足： in-line-formula description =“In-line Formulas”end =“lead”？> 12 degrees <= theta，<？in-line-formula description =“In-line Formulas”end =“tail”？>其中a dis 开口部分的开口与成像表面（这里称为凸缘背面（FB））之间的距离是：<？in-line-formula description =“In-line formula”end =“lead”？> 35 mm < = FB <= 50mm。<？in-line-formula description =“In-line Formulas”end =“tail”？>

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