ã€Global Internet Reporter Zhang Zhiying】Google’s parent company, Alphabet, announced that it has made progress with the Project Loon X-Lab project. Due to technological breakthroughs, the number of balloons needed for the project has decreased and deployment costs have been reduced. This plan to provide a global network has now gone one step further. The map says: X Labs promises that they will expedite this project, and ground user testing will take place very soon. Google launched Project Loon in 2013 and plans to deploy hundreds of balloons in the stratosphere to provide the necessary networking services anywhere on the planet. According to Venturebeat, Google X Labs stated in a statement: “In the past few months, we have achieved major breakthroughs by applying machine learning techniques to navigation algorithms. Now we can bring networking balloons together and deploy them on Earth. The sky over a particular area." The company said on the 16th that they have found a way to deploy a small number of balloons in a single location, move them up and down in the atmosphere, or use the wind to adjust different directions so as not to deviate from the coverage. This technique was tested in Peru last year and some balloons can stay in air for up to 3 months. Google first reported the results of the Peruvian test in 2016, but by comparison, Google more broadly advocated the technological breakthroughs made on the 16th, saying it was a turning point for the connected balloon project and marks the progress of X Labs. However, there are many similar projects in the laboratory, such as driverless cars; when they were announced several years ago, they were given high hopes, but until now they have still not achieved substantial results. In addition, the US social networking site Facebook has similar plans to use high-altitude drones to provide Internet services to developing countries. Facebook conducted its first trial last year, but its use of huge wings of solar powered drones caused many problems, and the strong wind caused its first drone to crash. Before Alphabet issued his statement, he had just cut expenses for certain non-core businesses. In October 2016, Google had dismissed some Google Fiber project employees. Cylindrical lens is mainly used to change the design requirements of imaging size. For example, convert a point spot into a line spot, or change the height of the image without changing the width of the image. It can be used in linear detector lighting, barcode scanning, holographic lighting, optical information processing, computers, and laser emission. Plano Convex Cylindrical,Lens Bi-Convex Cylindrical,Lens Plano Concave Cylindrical,Lens Meniscus Cylindrical Bohr Optics Co.,Ltd , https://www.bohr-optics.com
Cylindrical mirrors are mainly divided into plano-convex cylindrical mirrors, plano-concave cylindrical mirrors, double-convex cylindrical mirrors, and double-concave cylindrical mirrors. Plano-convex cylindrical lens will focus the incident light on the line with a positive focal length. It consists of a flat surface and a convex cylindrical surface. It is often used to gather parallel or divergent light beams onto the line or change the aspect ratio of the image. A plano-concave cylindrical lens is composed of a flat surface and a concave cylindrical surface, and its focal length is negative. It is often used to gather parallel or divergent light beams on a line or to change the aspect ratio of the image. United Optics provides non-coated, anti-reflection coated cylindrical lenses. Antireflection coating options include UV, VIS, NIR, and SWIR. Germanium, silicon, or zinc selenide substrates are suitable for infrared applications, while fused silica is suitable for ultraviolet applications. Optical cylindrical mirrors are also widely used in high-power laser systems and synchrotron radiation beam lines. At the same time, the requirements for cylindrical mirror parts are getting higher and higher, especially in the cavity of high-power laser resonators and long-distance line interference. High-precision testing instruments and devices such as instruments.