In this product guide, we offer you some valuable information about 3D projectors or the device called 3D mini projector. We will talk about the characteristics of these projectors and we will explain to you how they work.
Projectors and 3D projections
3D technology in projectors is used in many areas of daily life, but it is especially aimed at home use, for people who really want to enjoy 3D movies in the comfort of their home. If you’re such a person, you will definitely make use of this informative article about your own mini projector MyMobileGear with 3D projection technology. Here are two methods of 3D projection:
Anaglyph: (color code) Each image had a hue, red and cyan, these images are separated or outdated a few millimeters horizontally and when viewed through lenses with red and cyan micas, the brain interprets a single Image but with volume. This method of 3D projection has several disadvantages such as the alteration of the actual colors of the images, weariness of the eyesight and unclear images.
Active Shutter: created by means of 2 recordings from different angles at full HD resolution, these images are played alternately at high speeds and synchronized with special lenses with a shutter blocking the view of the right and left eye which produces a reproduction of one sequence that the human brain interprets as 3D.
How does a projector with 3D work?
To understand how does a projector with such technology work, first, we have to talk about how it is that we humans see things in volume or in three dimensions. This happens because our eyes are separated a few centimeters from each other, which allows us to see 2 different perspectives of a single image. That is, we see the same scene but from a different angle, then the brain unites the images recorded by each eye and gives the perspective of volume. On a projector, the images are reflected by the DMD (Digital Micromirror Device) chip that is a device made up of more than 500,000 microscopic mirrors that construct the digital image quickly, moving at a speed of 5000 times per second, each of the micro-mirrors representing a point on the projector screen.
These projectors generate 2 images at a time with a small offset and then synchronize with the photocell containing the special lenses with a light flash of only 2 milliseconds that is emitted with the same image.
The formation of a three-dimensional image, so popular recently, is not something fundamentally new for us. Back in the late 50’s of the 20th century the first 3D films were shown on the big screen. Today, 3D technologies have become much closer to us, far exceeding the old three-dimensional technologies and even more deceiving the human eyes and brain with a virtual picture. Projectors used to display a three-dimensional image creating a stunning immersive effect that far exceeds the impression of a 2D image.
Old 3D technology
Returning in the 50s of the last century, we note that even then it was suggested to use two colored color layers, red and blue, to create the depth of the image when viewed. In order to see the hidden information about the volume of the material shot, moviegoers had to use spectacles with transparent glasses of different colors – red and blue. This technology was called anaglyph and it was intended to create in the human brain a sense of stereoscopic image, which was the result of the composition of two layers of the image. The key problem with this technology was that the process of producing mass cheap glasses which were far from ideal. Inaccuracy in the production of stereoscopic glasses led to the fact that on the projected image appeared red and blue blurred spots from the removed objects.
Active 3D technology
Active 3D technology predominantly uses the possibilities of developing Digital Light Processing or DLP, which requires direct interaction between the projector and the user’s 3D glasses. Glasses with an integrated array of micromirrors receive commands from the TV or the projector. Two streams of three-dimensional data synchronized one with another, provide greater clarity of the 3D picture and less dependence on the position of the viewer’s position in front of the screen. Nevertheless, this technology has its drawbacks. Problems of synchronization of data streams for the left and right eye, as well as a higher response of the human brain and retina to a change in the visual range (something that active glasses can do), often lead to the viewer ceasing to sense the effect of three-dimensionality, and it seems to him that the glasses went out of order.
Passive 3D technology
Passive 3D technology is based on special polarizing glasses that separate the video picture for each eye, applying a polarizing filter to the light flux. In cinemas, this technology has become the most common because of the low cost of such glasses, the unnecessary power supply and the higher brightness of the resulting picture. In any case, the design of plastic polarized glasses is much stronger than the old cardboard glasses with color filters.
Professional projector systems with 3D
In serious 3D cinemas, two movie projectors are used, which simultaneously, at a certain angle relative to each other, reproduce the image through special color filters (red, green and blue colors) located on a high-speed rotating disc. The use of a projector in cinemas leads to the best perception of the human eye of the image, obtained through passive 3D glasses from two independent layers of the video sequence. It is worth noting that this projector system is universal and easily translates from 3D to 2D mode by simply shutting down one of the projectors.
Uses of such a projector
The applications of this projector technology in daily life are many, for example, in the field of education, it has been shown that schools that include a pico projector for the classroom have largely improved learning outcomes. Students are more interested and understand complex issues better thanks to the use of projectors for better explanation and demonstration of the lessons. Another application is to have a home theater because with a price not much higher than a 2D projector you can now have a 3D portable projector. You could find a great and affordable pocket projector on the market, and if you’re interested to see some of these amazing small projectors, go to myMobileGear.com.
Even if you have problems with space you can buy a short-range mini LED projector with which you can have a screen of 84″ at a distance of 1m between the projection screen and the small projector without distorting the image.
Today you can buy various LED, HD, 3D and portable projectors on the market. Some of the best projectors that we came across are those by myMobile Gear. Feel free to go to their website and learn about the features and technical specifications of their high-quality mobile projectors.
Should you buy a 2D or 3D projector?
For our part, we confidently answer – “of course 3D !!!”.
This confidence is based on the fact that:
- A quality 3D image is more interesting than a flat one, same as color image is more interesting than black and white
- Among the numerous 3D technologies already there is one (the main thing is to choose it correctly), which surely will last for several years and will not force you to buy a projector of the “new 3D generation”
- This technology already has a reasonable price
- 3D broadcasting standards and records are developed and unified, compatibility problems are a thing of the past
3D is perceived only on a large screen, so the projector, not the TV.
Just in case, we recall that all 3D projectors are simultaneously full-fledged 2D projectors.
Sometimes people ask – “why buying a projector when there are not enough 3D movies?” Firstly, there are not so few of them, and secondly, the projector is bought for several years ahead, and, for example, already in 2017, a third of the broadcasting companies will have 3D channels, and of course, before all will get a 3D format of sports broadcasts.
Many people have visited commercial 3D cinemas and saw 3D TVs, so they are often asked to compare whether a projector for 3D projections in a home theater will show better or worse.
Definitely better because:
In the cinema for the fullness of 3D sensations, the viewer’s position relative to the screen is very important, and it cannot always be chosen – you sit on the seat for which you bought the ticket. In addition, a few more commercial cinemas are fully prepared with a projector for 3D viewing.
LCD TVs tend to cause a negative attitude toward 3D, because LCD technology cannot quickly update frames and the image suffers from a “frame overlap” defect when the left eye image is visible in the frame for the left eye.
Plasma TVs have very high-quality 3D, but the image size is small, so there is a 3D effect, and there is no “presence effect”, as in the cinema.
A home pico projector is an excellent alternative to a TV. What is this device capable of? The mobile projector will please the viewer with a really great image: the diagonal here is measured in meters, while the portable projector itself has more compact (in comparison with TV) dimensions.
Projectors for home use allow you to pamper yourself with your favorite movies on the big screen, and a pocket projector for the office will give you the opportunity to conduct video presentations (all that is needed is a smooth white wall or screen). Invaluable help in the educational process will also be a mobile projector for the school or university: viewing educational and scientific films will make the training not only effective, but also more interesting and interactive for the students.
When choosing a small projector for your room, you should pay attention to such parameters as the resolution of the projector (the higher it is, the better the picture will be). In particular, the high-definition image is guaranteed by the HDMI projector. Also, the brightness and contrast of the image in a dark and bright room are important. You could learn more out more about this technology from the team of experts at myMobile Gear.
Having a 3D projector at home, if you chose it correctly, will surely be a very strong and pleasant experience.