3D Eyeware main reason
Polarization 3D technology is now widely used in commercial cinema and other high-end applications. In the technical way and the shutter is the same, the difference is passive reception is also known as passive 3D technology, auxiliary equipment, the lower the cost, but the higher requirements of the output device, it is very suitable for commercial cinema, etc. Need to use a lot of places of the audience. Not flash is the use of this principle.
Three-dimensional sense of the main reason is that the left and right eyes to see the different screen, the left and right eye position is different so there will be some differences in the screen.
Shooting three-dimensional image is used when the left and right two lenses. Then the image of the left lens is filtered through a transverse polarizer to obtain transversely polarized light, and the image of the right lens is filtered through a vertical polarizer to obtain longitudinal polarized light.
The left and right eyes of the stereoscopic glasses are fitted with a transverse polarizer and a vertical polarizer, respectively. The transverse polarized light can only pass through the transverse polarizer, and the longitudinal polarized light can only pass through the longitudinal polarizer. So that the left side of the camera to ensure that things can only enter the left eye, the right camera to shoot things can only enter the right eye, so the three-dimensional
Also known as active shutter 3D glasses, shutter 3D technology for home users can provide high-quality 3D display, the implementation of this technology requires a proactive LCD shutter glasses, alternating left and right eye to see the image so that Your brain will be two images into one to achieve, resulting in a single image of the 3D depth sense.
According to the human eye on the image frequency refresh time to achieve, by improving the screen's rapid refresh rate (at least to reach 120Hz) left and right eye 60Hz fast refresh the image will make people do not produce jitter , And keep the same number of frames as the 2D video, the two eyes of the viewer see the different screens that are quickly switched and create illusions in the brain to see the stereoscopic image.
A: Active shutter 3D glasses need to be equipped with battery, the use of cost and continuous use of time to receive the battery power limit. But it should be noted that this small electronic equipment generated by the electromagnetic radiation for the non-ionizing radiation, there is no clinical data that it will cause harm to the human body.
2: the screen flashing problem, 3D glasses flashing problem, mainly reflected in the active shutter 3D glasses, 3D glasses on both sides of the opening and closing frequency are 50 / 60Hz, that is to say the two lenses every second to open and close 50/60 times, even so fast, the user glasses can still feel that if the watch for a long time, the burden of the eye will increase.
Three: the brightness greatly reduced, with this black film to join the 3D glasses, each eye can only get half of the light, so take the initiative to see the shutter, like wearing a sunglasses to watch the same TV, and the eyes are easy fatigue.