3D movies generally refer to stereoscopic movies. Stereoscopic film is also a kind of movie. Stereoscopic film appeared for the first time on May 24, 1953, and a movie was launched in Hollywood. Spectators wearing special glasses found themselves hiding behind the escaped train and the devil, as they watched thrillers such as "Bowana Devil" and "Wax House". So as to bring us into the era of three-dimensional film. The principle of 3D movies Stereoscopic film (ANAGLYPH): The two images are superimposed to produce a three-dimensional stereoscopic effect. When the audience wears stereoscopic glasses to watch, there is a sense of immersion. Also known as "3D stereoscopic movie". A three-dimensional movie is a movie that can produce a three-dimensional effect by using the difference in viewing angles and convergence functions of human eyes. Appeared in 1922. During this kind of film projection, two screens are superimposed on the screen. Through the special glasses of the audience or the radial semi-conical lens grating in front of the screen, the audience can see the picture taken from the left perspective and the right eye can see the picture , Through the convergence function of both eyes, it is synthesized into a stereoscopic vision image. There are many forms of 3D stereoscopic film production, among which the polarized glasses method is more widely used. It uses the human eye to observe the scene, using two juxtaposed movie cameras to represent the left and right eyes of the person, and simultaneously shoots two movies with a slight level of parallax. During the projection, the two movie films are loaded into the left and right movie projectors respectively, and two polarizers with a polarization axis of 90 degrees to each other are installed in front of the projection lens. The two projectors need to run synchronously, and at the same time put the picture on the metal screen to form a double image of the left image and the right image. When the audience puts on special polarized glasses, the polarization axes of the left and right polarizers are perpendicular to each other and coincide with the polarization axis in front of the projection lens; therefore, the left eye of the audience can only see the left image and the right eye only You can see the right image, and the left and right images are superimposed on the retina through the convergence function of the eyes, and the 3D stereoscopic visual effect is generated by the brain nerves. Displaying a series of coherent three-dimensional pictures makes the audience feel that the scene is coming, or entering the deep recess of the screen, which can produce a strong sense of "presence". Stereoscopic film is a two-viewpoint image of a scene with two lenses like a human eye. Then through two projectors, the images of the two viewpoints are displayed simultaneously, so that the slightly different two images are displayed on the screen. At this time, if you look directly with your eyes, the pictures you see are overlapping and somewhat blurred. To see a stereoscopic image, measures must be taken so that the left eye only sees the left image and the right eye only sees the right image. For example, if a polarizer in the opposite direction is installed in front of each projector, its function is equivalent to Polarizer, after the light emitted from the projector passes through the polarizer, it becomes polarized light. The polarizing directions of the polarizers in front of the left and right projectors are perpendicular to each other, so the polarization directions of the two polarized lights are also perpendicular to each other. The beam of polarized light is projected on the screen and then reflected to the audience. The direction of the polarized light does not change. The audience uses polarized glasses corresponding to the above polarized light to view, that is, the left eye can only see the picture reflected by the left machine, and the right eye can only see Go to the screen projected on the right machine, and you will see the stereoscopic scene. This is the principle of stereoscopic film. Complementary colors, switches, lenticular lenses, slit gratings, etc. are all different ways to ensure stereo viewing on several screens based on the basic principle that the left eye looks at the left image and the right eye looks at the right image. As technology advances, people will see more stereoscopically on the screen. Polarized 3D Polarized 3D technology is also called polarized 3D. Belongs to passive reception, it is often used in the polarized 3D technology of the projector industry. It requires more than two projectors with the same performance parameters to achieve the 3D effect, while the polarized 3D technology applied in the TV industry requires the screen to have 240Hz or 480Hz or more Refresh rate. This 3D technology, the cost of auxiliary equipment is lower, but the requirements for output equipment are higher. Shutter 3D technology Shutter-type 3D technology, the principle of which is based on the refresh time of the image frequency by the human eye. Only by increasing the fast refresh rate of the screen (at least 120Hz), the 60Hz fast refresh image of the left eye and the right eye will make people There is no jittery feeling to the image, and the same frame number as the 2D video is maintained. The two eyes of the audience see different pictures that switch quickly, and produce an illusion in the brain, and then watch the stereoscopic image.
In this category, we introduce an energy electronic cigarette, it is added with caffeine and other substances to help refresh you, and not nic.
When you feel sleepy, taking a sip will reduce your drowsiness, which is simpler than sparkling coffee.
We are China leading manufacturer and supplier of Disposable Vapes puff bars, energy e-cigarette pen,energy e-cigarette kit,
energy e-cigarette device, and e-cigarette kit, and we specialize in disposable vapes, e-cigarette vape pens, e-cigarette kits, etc.
energy e-cigarette pen,energy e-cigarette kit,energy e-cigarette 0 nic,energy e-cigarette device,energy e-cigarette vaporizer Ningbo Autrends International Trade Co.,Ltd. , https://www.mosvapor.com
What is the principle of 3d movie
What is 3D movie