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Low diffraction iris diaphragm for camera objective - has aperture further reduced below min. width by linearly varying, low density optical filters introduced over aperture
Low diffraction iris diaphragm for camera objective - has aperture further reduced below min. width by linearly varying, low density optical filters introduced over aperture
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机译:用于相机物镜的低衍射光圈膜片-光圈进一步减小至最小。线性变化的低密度滤光片通过孔径引入宽度
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摘要
The aperture plates form the diaphragm aperture and determine its variable size. The diaphragm has a device (10-14, 31-34) for linear variation of its aperture, by which the aperture plates (21-24) can be moved from a maximum aperture to a specified small aperture not producing any diffraction. when the aperture is a minimum at least two low density filters (50, 60) with linearly varying density can be swung into the aperture formed by the aperture plates (21, 24).
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