Absolute measurement and foundation of standard optical surface.

标准光学面形的建立与绝对检验。

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Previously, standard optical microscopes managed 20 times that with a clear viewing range of just one micrometre.

以前，标准的20倍光学显微镜，只能清晰观察到一微米范围。

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Quick adjusting method of interference fringes and correct quotation method of standard optical flat flatness are analyzed.

文章重点分析干涉条纹的快速调整方法与标准平晶平面度的正确引用方法。

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Both new members of the CE line feature those standard 3x optical zooms that have become so tiresome along with 2.36-inch TFT LCDs (no viewfinder here), while the 5300 sports a 2.0-inch LCD and seemingly no optical zoom.

ENGADGET: Three more digital cameras from Acer

It has a proprietary system for encoding 2D and 3D video using occlusion, which is delivered to standard panels that have been retrofitted with its optical glass sandwich to bring the spec-less 3D illusion to viewers.

ENGADGET

The 2x optical zoom is equivalent to a 32mm-64mm lens on a standard 35mm camera, and a 3x digital zoom will help the shutterbug zero in on faraway details.

FORBES: Ten O'Clock Tech: New Digital Camera Uses Tiny Memory Card