The green part of the fluorescent pink wheel mostly indicates the problems of the green laser pointer. The price of laser light sources has continued to fall in recent years. From the early price of tens of thousands of yuan to the price that can be accepted by many people, it also reflects the improvement of laser technology. At present, the laser + phosphor mode is common on the market. This mode greatly reduces the cost of the laser light source. In fact, the more cost-saving is the hybrid mode of laser + LED light source, but after using this light source for a period of time, the uniformity of the brightness attenuation of LED and laser is difficult to deal with, which is not a good solution.
The laser light source still has a long way to go in the future. The technology of laser light source is also constantly improving. At present, the laser light source used in the projector is not an RGB mode, and the laser + phosphor mode is currently popular because of its low cost. Although the cost is reduced, this technology is affected by the light wavelength of the blue laser being slightly shorter than 2-6 nanometers, and the blue has a purple phenomenon. Although the color gamut of the current laser light source is very wide, the color accuracy still does not reach the desired level.
The actual color gamut of the laser light source is very wide. This situation may change in the future. Recently, major manufacturers in the projection industry are beginning to study laser projection, and will also launch two-color laser light source projectors and true RGB laser light source projectors, which can fundamentally improve the color inaccuracy of laser projectors. At the same time, this solution also ensures the economics of the light source.
From the perspective of the entire projection industry, the emergence of green laser pointer light sources is also an opportunity for the development of the projector industry. Therefore, the development of the laser industry is of strategic significance. Under the environment of national policy support and demand escalation, both local emerging companies and traditional projection giants regard laser projection as an important fulcrum for the future, and continue to explore and innovate in technology, market, and business model. Although the traditional projection market continues to decline, laser projection has taken over the banner of industrial development and has become the backbone of the projection market.
Just like the particles in the double slit experiment, they have two different paths at the same time, and electrons can participate in two different processes at the same time, said a professor from the Vienna University of Technology. In essence, it is not necessary to choose one of the two possibilities, both of which are equally real and interfere with each other. By carefully adjusting the two lasers, it is possible to control whether the two quantum physical processes amplify each other, which leads to an increase in electron emission, or whether they cancel each other out, which means that there is almost no electron emission.