Blue Ray

Blu-ray 1: Science's 2nd: Blue. 3: History of CD 4: Consortium 5: Reason for choosing Blu - ray 6: Storage 7: Retrieving RID 8: Recording method 9: Groovy 10: Lu Hao. 11: Favorite person 12: MPEG 13: Basic Blu-ray Disc features 14: Main specifications 15: Conclusion 1: Science is well-known, CD players and video recorders use CDs to read and write CD lasers . Laser is very short: amplified light of stimulated radiation. In brief, this means that the high emission energy produces light radiation like light bulbs.

We all know how important it is to protect your eyes from the harmful ultraviolet rays of the sun, but what about the harmful effects of blue light? Blue light has the highest energy level among all visible light. Therefore, these blue or high energy visible light (HEV) wavelengths are easy to flicker. Many times people feel physical and mental fatigue due to headache, eye strain, and even the flash of blue light. Although these may not seem serious, studies have shown that long-term exposure can cause retinal damage, loss of vision and many other complications. We will do this for ourselves. Before I knew, many people experienced my day and bathed an unnatural blue light. People are accustomed to spending a lot of time on digital equipment, so they continue to be published at home. In the darkest time, the house shines very well, people pay the price

Natural filters in our eyes do not provide adequate protection against blue light from the sun, blue light emitted from these devices or blue light emitted from fluorescent lights is obvious. Exposure to long-term blue light can cause retinal injury, leading to age-related macular degeneration and lead to blindness.

Blue light is overflowing. The sun, television, computers, mobile phones, fluorescent lights, LED lights, electronics, and all kinds of digital screens all project blue light. The light from the sun is natural, scattered and reflected in the atmosphere, creating the blue sky we like. This natural blue light (the sun rising and falling) not only adjusts the circadian rhythm of the body (sleep and wake cycle), but also increases happiness and agility. But artificial blue light does not have the same effect

On the earth, the sky is blue, as the blue light of the sun reflects from the atmospheric gas and looks like a blue light from the sky. However, the moon has no atmosphere during the day, so the sky looks pure black. And there is no atmosphere to protect the moon from rocks falling from outer space. These meteorites hit the moon and formed wide and shallow holes called craters. There are thousands of months. New crater slowly wear old crater