Solution de système de sécurité et de surveillance MCCTV Actualités de CCTUNG — 3D Printer

Why is it called "3D"? The name “3D” is a short-hand abbreviation for “three-dimensional,” meaning that an image or object exists (or appears to exist) on three axes — X, Y and Z. If you think of a piece of graph paper, the X axis runs horizontal across the page and the Y axis runs vertically. This makes up the basics of a two-dimensional (or 2D) image. If you were to put a pencil the center of that piece of the graph paper, the pencil would become the Z axis. You would then have enough axes to create a three...

How can you get 3D from a 2D screen? A 3D TV or theater screen showing 3D content displays two separate images of the same scene simultaneously, one intended for the viewer’s right eye and one for the left eye. The two full-size images occupy the entire screen and appear intermixed with one another–objects in one image are often repeated or skewed slightly to the left (or right) of corresponding objects in the other–when viewed without the aid of special 3D glasses. When viewers don the glasses, they can perceive these two images as a single 3D image.

What types of 3D TV are there? There are two main types of 3D technology that are ready for you to use now. Commonly known as ‘active’ and ‘passive’, the two types deliver a similar effect, but have massive differences in the production cost, and how it is passed on to you, the consumer.Active-shutter 3D is going to be the way most people end up seeing 3D in their homes. With this technology, the TV is basically the same as your current one, but with some increased performance to make the 3D look as good as possible. To see 3D,...

Can everyone see 3D? No. Between 5 percent and 10 percent of Americans suffer from stereo blindness, according to the College of Optometrists in Vision Development. They often have good depth perception–which relies on more than just stereopsis–but cannot perceive the depth dimension of 3D video presentations. Some stereo-blind viewers can watch 3D material with no problem as long as they wear glasses; it simply appears as 2D to them. Others may experience headaches, eye fatigue or other problems.