A new laser interferometer method is presented and used to quick measurement of parallelism of optical flat.

文章提出了一种新的检测方法即用数字波面干涉仪检测平晶的平行度。

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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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At present, long optical flat is still mainly adopted as calibrating benchmark in straightness measurement, whose accuracy is not so high (especially in measuring great-size parts).

我国目前主要仍采用长平晶组分段互检方法作为直线度检定基准，测量精度不高(特别是在测量大尺寸零件时尤为明显)。

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In his 50-year career, Ovshinsky received more than 400 patents in the U.S. and more than 800 foreign patents covering a range of technologies, including nickel-metal hydride batteries, rewritable CDs, DVD optical discs, flat-screen liquid crystal displays, hydrogen fuel cells, thin-film solar cells and others.

FORBES: Stanford Ovshinsky, Battery Genius Behind Smartphones And Hybrids, Dies At 89

Fujifilm also sought new outlets for its expertise in film: for example, making optical films for LCD flat-panel screens.

ECONOMIST: Technological change

In addition, information tech projection Hitachi flat-screen TV has ever produced (President: Kenichi Yoshitake) is the production technology and techniques such as optical plastic substrate packaging technology developed in the manufacture of flat-screen televisions and other video equipment will continue to contract manufacturing products outside the Hitachi Group.

ENGADGET: Hitachi to halt domestic production of Wooo LCD and plasma TVs, Mitsubishi to axe optical discs?