The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A bi-spectral camera for visible and solar-blind UV (240nm-280nm) was developed for detecting the corona discharge. Due to the UV light generated by corona discharge is very weak, so an optical system by careful calculation was designed for the UV band. The UV optical system was schemed with the focal length of 200mm, relative aperture of 1:2.77 and the FOV of ±2°. The assembly of UV optical system...
Piezoelectric actuators are widely deployed in many precise positioning applications. However, all piezoelectric systems feature hysteresis effect to limit their linearity. To solve this problem, feedforward compensation is the most common technique. Many models have been proposed and applied, but their expressions are complex and parameters are difficult to identify. In this paper, a simple model...
We present a detail investigation on the development of a series of gradient index (GRIN) optical glass microlens and polymer microlens and microlens arrays in our laboratory in recent years. The special glass material GRIN lenses have been fabricated mainly by using ion-exchange technology, which are applied to construct micro-optic devices and other applications. On one hand, we demonstrated the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.