Rich Yard Investment Group Co., Ltd.

Chinese Academy of Sciences

Xiaobin Wu

Jianjun Liu

Yu Wang

Lijia Zhang

Kuibo Wang

Yan Luo

Wanlu Xie

Luosha Zhang

A preparation device has a chamber, molten metal containers, a rotatable base in the chamber and having a deposition substrate, laser sets generating a dual-pulse laser, a base controller and a data collection control unit. The containers communicate with the chamber and each has a pulse pressurization apparatus pressing the molten metal into the chamber. The laser sets correspond to the containers such that beams of an emitted dual-pulse laser bombard the pulsed droplets, plasmas are generated and are sputtered and deposited on the substrate forming a multi-element alloy thin film. The unit collects base temperature and displacement information, and controls the pressurization frequency of the pulse pressurization apparatus, and the emission frequency and energy of the dual-pulse laser of the laser sets controlling the frequency and energy of the dual-pulse laser bombarding the corresponding pulsed droplets. The base controller controls the base temperature, rotation and movement.

Apparatus and method for preparing multi-component alloy film

Embodiments of the present application provide a screen projection system, method and apparatus. The system includes a display screen, wherein the display screen is of a fully-closed or partially-closed housing structure, and an inner wall of the housing structure is configured to provide continuous images with a view angle of 180 degrees to 360 degrees in a horizontal direction. The system further includes: at least two groups of projectors, each group including at least one projector. The at least two groups of projectors are hierarchically arranged in a central axis direction of the display screen, each group of projectors is configured to carry out projection onto a portion of an inner wall of the display screen, and light paths of the at least two groups of projectors are configured to avoid audiences and seats. According to the present application, the technical solutions may be applied to different screens.

Screen projection system, method and apparatus

Embodiments of the present application provide a display screen, wherein the display screen is in a fully-closed or partially-closed housing structure, an interior of the housing structure being configured to provide continuous images with a view angle of 180 degrees to 360 degrees in a horizontal direction; wherein the housing structure includes a cylindrical portion, a side wall of the cylindrical portion being arranged in a smooth arc line or straight line on an axial cross section, and if the side wall of the cylindrical portion is arranged in the arc line, the radius of a circle corresponding to the arc line is greater than a maximum vertical distance from the arc line to an axial line. According to the present application, the audiences feel comfortable in watching and the cost is saved, while a strong sense of immersion is achieved for the audiences.

Display screen

Growing community of inventors

Beijing, China

Xiaobin Wu