The formation mechanism of orange valvule-like pinhole in rolled aluminium foil was investigated by using optical microscopy,scanning electron microscopy,and energy dispersion X-ray spectrum.
利用光学、扫描电、能谱分析等试验手段对铝箔中"桔瓣"形针孔形成原因进行了分析。
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He was probably familiar with the camera obscura, a device that projected an image through a pinhole and onto a screen in a darkened chamber (new research suggests he may have been introduced to it by the Jesuits of Delft).
维米尔可能对暗箱技术很熟悉,这种装置可以让图像过小孔,投映到光线较暗室内幕布上。(新研究表明,这种技术可能是代尔夫特耶稣会士介绍给他)。