Stereo 3D visual difference is the use of people’s eyes and optical refraction in a plane so that people can directly see a three-dimensional figure, painting things outside of either protruding from the screen, which can gives people a strong visual impact. It is essentially different from the image plane. Image plane that reflect the object up and down, around two-dimensional relationship, people see the floor plan has three-dimensional. This is mainly the use of light and shadow, the actual situation, to reflect the light and dark contrast, but the real draw is the simulation of three-dimensional world of the human eye works, optical refraction produced, it can make the eyes see and feel the object up and down, left, before and after the three-dimensional relationship.
So how do we let people see the Stereo 3D images? Stereo 3D display equipment requirements from the point of view into the current naked-eye glasses and glass-style 3D and certainly it will cost in high price, try to visit this site http://www.fastcashonline.com to get a loan as the solution to have the Stereo 3D display equipment.
The naked eye which is currently mainly used for public business occasions, as well as mobile phones, game consoles and other portable devices.
The glasses-style 3D is currently divided into color separation method, spectrophotometry and time-sharing method. Their main principle is as follows:
Anaglyphic 3D is with the use of a passive red – blue (or red – green, red – blue) color filter 3D glasses. This technique has the longest history, imaging is simple in principle, to achieve very low cost, the cost of glasses is only a few dollars, but the 3D picture effect is the worst.
Component-style 3D rotating filter wheel first by separation of spectral information, use filters to screen different color filter, so a picture can produce two images, each person’s eyes see different images. This method is easy to make the edges of the screen cast.
3D color type of equipment required is very low cost, hardware, only a red and blue glasses to watch, there are no special requirements for the display, can be realized through software conversion. However, the shortcomings of this approach is obvious: it is easy to produce color cast. This is mainly because of different screen colors are different, no guarantee can be completely filtered out the red glasses and blue, will result in incomplete filtering screen ghosting, it is difficult to achieve perfect results.
Polarization 3D is used in conjunction with passive polarized glasses. Polarized 3D technology for better image quality than the color type, and the cost of glasses is not too high, now more of such technology is used in the cinema, but for higher brightness of the display device.
3D is the use of light polarizing style of “vibration direction” of the theory to decompose the original image, the image is divided into first through vertical and horizontal polarized light to polarized light to the two images, and 3D glasses with different polarization directions, respectively, around the side optical lenses, so that people can receive two sets of left and right eye images, and then through the brain synthesis of three-dimensional images.
3D polarized type of benefits include: screen flicker-free, lightweight glasses. But it also has disadvantages, one is the viewing angle requirements, because it produces three-dimensional theory is obtained using light refraction angle, so when the angle of deviation, it will produce the screen ghosting. The second major drawback is the lower image resolution. As the current polarized 3D technology is taking the original image separation approach, so it’s definition will be halved.
Active Shutter 3D
This 3D technology in TVs and projectors above are used widely, relatively more resources, and excellent image quality, respected and used by many manufacturers, but its high price matching 3D glasses.
3D active shutter mainly by increasing the screen refresh rate to achieve the 3D effect, according to the frame through the image into two to form the corresponding left and right eye images of two consecutive interlaced display, while the infrared signal transmitter the synchronization control around the shutter-style 3D glasses lens switch, so that the left and right eyes can be seen at the right moment the corresponding picture. This technique can keep the original resolution of the screen, easily allowing users to enjoy true full HD 3D effect, and will not cause the screen brightness.
In general, 3D LCD TV screen refresh rate of 120Hz or more must meet, that is to the left and right eye were received over the image frequency 60Hz in order to ensure that users see 3D images continuously without flashing effect.
The biggest advantage of Active Shutter 3D is the quality completely lossless, while a good viewing angle. But it’s also a lot of shortcomings: The first is the hardware cost, no matter which of the program, monitors, glasses and other household equipment prices are currently the most expensive 3D equipment. In addition, the shutter-style 3D technology, decision theory, when the light around the screen when the inevitable blinking. Finally, the Active Shutter 3D transmitter and receiver need to directly increase the installation, setup and use of the complexity of the receiver is usually placed in the glasses, so the inevitable increase in weight, increasing the burden on the user’s body.