VR, also known as the virtual reality market, has become a battleground for Internet companies. In October 2016, Xiaomi released a Xiaomi VR toy glasses for 49 yuan, and it is scheduled to be on sale on December 12 this year. The official version of VR glasses, and the price of 199, today we bring you the evaluation of the official version of Xiaomi VR glasses, come and see it! package The package is all black, and the whole package follows the simple packaging style of Xiaomi, which looks scientific and technological. Open the package, it is an all-white millet VR official version of the glasses, the opposite of the color of the package, forming a sharp contrast, I think this is also the intention of Xiaomi. Compared to the 49 yuan Xiaomi toy VR, this official version is much more refined. The official version of Xiaomi VR glasses is 295 & TImes long; 200 & TImes wide; 156 (mm) high and weighs 408g (excluding mobile phones). In fact, compared to the pig VR glasses is slightly heavier, wearing it will have a certain pressure on the head, when we open the front cover, you will find a graphic guide on the above, you need to put the phone before use The MIUI system is upgraded to the latest development version, and then, according to the following three steps to complete the operation, so Xiaomi VR now only supports Xiaomi 5, Xiaomi 5S, Xiaomi 5S Plus and Xiaomi note2 four models. In the details, the millet VR glasses have a built-in 6-axis motion sensor with a sampling refresh rate of up to 1600 Hz, including a gyroscope and a 16-bit accelerometer. In the lens, a 38 mm high lens, optical PMMA, and viewing angle are used. It is 103°, and the light transmittance is over 93%. It supports macro adjustment and can meet the needs of 600 degrees myopia and 200 degree far vision people. The headband part supports one-button adjustment, which has a clear sense of technology compared to the adhesive head on the market. Regarding the explanation of the handle part, I hope that the Xiaomi VR glasses will be officially launched when the pair is 12 years old.
Vacuum fluorescent display, referred to as VFD, is a low-energy electroluminescent display devices, the working principle and CRT similar. It has the incomparable advantage of liquid crystal display (LCD) in applications where there is a large variation in ambient brightness and no strict requirement for low power consumption, and is now widely used in audio-visual equipment, home electronics, automotive instruments, office equipment and instrumentation.
The structure of a VFD board is a typical vacuum triode structure, consisting of a cathode, a grid and an anode. In between the cathode and the anode there's a thin mesh of metal called the Grid that can be switched on or off, controlling the flow of electrons from the cathode to the anode. This VFD grid mesh is made of a thin metal plate with a thickness of 30 to 50μm, which is lithographed and made into a highly transparent fine lattice or tortoise-shaped metal mesh. When a positive voltage is applied to the grid, electrons emitted from the filament are accelerated and diffused toward the anode. When a negative voltage is applied to the grid, electron flow to the anode is cut off.
We custom VFD Grid with drawings provided by customers. The raw material we use for etched VFD Grid is SUS430 stainless steel. We are equipped with professional metal etching equipment and exposure development equipment. Our etched manufacturing capacity can achieve 0.05mm.
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