What do you feel when you walk through a window? Maybe it's a colorful view from the window, maybe it's a cool breeze, but most importantly, what you see in the front and left and right angles of the window is very different. So, if you just passed the window, but a TV set? Of course, the current TV set can't achieve this kind of experience – because it's just a pure 2D plane. To make the TV really realize the "window" feeling, we must rely on the "light field" display technology we are going to introduce today. This is also likely to be the display technology of VR/AR in the future. What is the "light field"? As is well known, the displayed picture is composed of individual pixels, and the density of the pixels determines the fineness of the picture. And if each pixel has more than one color, it can be realized, and depending on the viewing angle, the color is also different. This is the most basic point of holographic imaging technology. This is also the means by which the light field is implemented for moving images. The reason why it is called "field" is because for a camera that shoots a light field, every pixel must capture the light that hits each pixel from every direction, not just the light in front. The angular size of the light field display may be more limited. So the ideal solution is probably a window-like TV like the one at the beginning of this article. But as a result, the resolution will increase several times. Imagine that no matter how scattered the viewing angle is, you need to achieve full resolution - this will consume huge video bandwidth, in the 180 degree field of view, with an average viewing distance, support different angles between the two eyes portrait. At the moment, we are far from providing this level of bandwidth, which may require hundreds or even thousands of times today. What is the traditional VR display? The Oculus Rift or HTC Vive VR helmet creates an artificial image, but by using visual cues, it gives a deep impression. such as: Binocular Aberration or Stereo Vision: The images seen by the user's left and right eyes are somewhat different, so when the brain processes the two images, you can feel the depth. Motion parallax: When the user moves the head from side to side, the lateral movement closer to the user's line of sight is faster than in the distance. This is how the VR helmet deceives the human brain, and people believe that there is "farness and nearness" in the scene. Binocular occlusion: Objects that are in the foreground in the scene, and objects that are in front of other objects appear to be closer together, resulting in a simple relative distance level. If the occlusion of each eye is different, the human brain will think that there is depth. Visual Axis: When staring at something, the closer the object is, the more the eye has to keep it in the center of the field of view. But if something is at an infinite distance in the distance, the eye must diverge and turn. This action gives the brain the data it needs to calculate the distance of the object. Most heads show no clues to focus. The entire scene is always focused, as the scene is displayed on a flat screen at the same distance from the user's eyes. But the eyes will also cohesive and dissipate to the point where attention is drawn because of a part of the changing stereo image. In this process, the brain does not feel good. This process called "sight-axis focusing" will cause "visual discomfort, loss of image quality, dizziness, headache and eye fatigue." So, which companies are doing this? NVIDIA is working with Stanford University to develop a new type of display technology. Known as the "light field stereoscopic" technology, this technology uses a dual display that consists of two LCD panels that are 5 mm apart. A VR helmet will transform each image into scattered light through a microlens array and track and display the source and destination of each light. As a result, the human eye will be more likely to position the focus cues at different depths. The other is Magic Leap, who threatened to let the user's eyes, in addition to virtual images, handle the light in the real world. Micro inverter is a small inverter used in solar power generation systems, its main function is to convert the direct current generated by a single Solar Panel into alternating current. Unlike traditional centralized inverters, microinverters are usually equipped with one per solar panel, that is, each solar panel has an independent microinverter. grid tie micro inverter, off grid solar micro inverter, hoymiles microinverter price, micro inverter solar system, solar system with micro inverters Ningbo Autrends International Trade Co., Ltd. , https://www.china-energystorage.com
Main effect:
1. Individual control: The microinverter provides independent conversion control for each solar panel, which means that each solar panel can optimize its power output individually. This maximizes the power generation efficiency of the solar panels since shading or other influences only affect the power generation efficiency of individual panels, not the entire array.
2. Reliability: Since each solar panel is equipped with a micro-inverter, even if one of the inverters fails, the other panels can still work normally, thereby improving the reliability of the entire system.
3. Flexible installation: Micro-inverters are usually small and can be installed near solar panels without being concentrated in one location, so installation is more flexible and convenient.
Differences from other inverters:
1. Individual control: Compared with traditional centralized inverters, microinverters provide independent conversion control for each solar panel, enabling each panel to reach its maximum power output.
2. Fault isolation: The micro-inverter has the function of fault isolation. Even if one of the inverters fails, other panels can continue to work without affecting the operation of the entire system.
3. Installation method: The micro-inverter can be flexibly installed near the solar panel, and does not need to be concentrated in one location, so the installation is more flexible and convenient.
4. Applicable scale: micro-inverters are usually used in small-scale solar power generation systems, while traditional centralized inverters are suitable for larger-scale photovoltaic power plants.
Overall, the main role of microinverters is to individually control and optimize the power generation efficiency of solar panels and improve the reliability of the system. Compared with traditional centralized inverters, it has some advantages in terms of flexibility, fault isolation and applicable scale.