银幕的宽度、挂高、亮度,以及放映机的光通量、焦距等都是电影观众厅设计的重要因素。
The width, height, brightness of the screen and the luminous flux, focus of the cineprojector are important factors of cinema auditorium design.
大视场光学系统由于非共轴、视场、焦距等因素的影响,光学设计比较复杂,光学系统的畸变比较大。
Optical systems with large FOV are usually complex in design and have large distortion due to such factors as eccentric, field of view, and focal length.
戴眼镜看物体与眼睛直接看物体时相比,物体究竟变小、等大还是变大,取决于眼镜与眼睛光心之距与眼睛的焦距。
Comparing to see the objects with glasses, with seeing them directly will become bigger, equal or small all depends on focal distance between glasses and eyes.
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