Movie theater projectors have liquid cooling systems combined with fans which cools the gigantic parts inside which produces a lot of heat from the power intensive components that runs it. These cinema projectors must be aligned perfectly on a fixed position, a position that will enable the projection to be perfectly aligned on the screen.
The upkeep of theater projectors can be intensive, financially and also maintenance wise. Projector lamps of these industrial projectors are expensive, they will need to be replaced more since they will be playing three-hour long movies, up to 5 times a day thus depreciating the lamp more quickly. Movie studios, distribute movies in hard drives and through satellite links.
Theater projectors have hard drives plugged into it with the movies stored in these hard drives, the movies are then copied to the projectors, some projectors have satellite downloading capability while others rely of file server, a central server will store all its movies and then each theater projectors from the different cinemas will read the files from this central server.
They have a web control interface just like a router where you can command the projector over the web. Unique to cinema and theater projectors are automation capability, the projector room attendant, can set the sequence of events which the projector has to run, like ads and the likes and then set the time in which it has to run it, it will do the job by itself.
This is because it is feature packed and has a lot of heavy hardware packed inside. It pays off in the long run for commercial cinemas and theaters operators. While we may not have the budget for some kick ass high end projectors, there are alternatives to these mega projectors can produce similar result but on a lower scale.
With just a few hundreds of dollars spend and a small room, you can have a theater of your own. Some home projectors are even intended to be portable and can be used either indoors or outdoors. Movie theaters are large spaces with little to no ambient light.
The screens vary in size but conform to a standard ratio. DCPs are designed to work within these specifications. Lamps on movie theater projectors are also more powerful, able to put out up to 20, lumens of illumination. Even high-end consumer projectors rarely put out more than 4, lumens, which is plenty for in-home applications. These can be sent as a physical unit, such as a hard drive or disc, or sent via satellite and unlocked by the theater with a special key.
Light is thrown on the screen from a large distance to create a large image. Members of the top 6 movie studios have made an organization known as a digital cinema initiative. Before selling to the theater, they approve the movie whether the projector will maintain the video quality or not for the audience. Moreover, there are anti-piracy measurements and license restrictions of content, and the projector should deal with all these without compromising performance.
DCPs work by using technology known as digital light processing, it consists of millions of silicon chips, and each chip specifies a pixel. Collectively, all pixels result in the projection of a high-quality and detailed image. Large lamps with high brightness are used in it, and their light splits into different colors and projectors on the right mirrors.
As we all know, there is a forward mirror that converges all split light and forms a single beam, which then falls on the screen and creates the image. Sony DCP works on different technology known as silicon crystal reflective display, the whole working process is the same, but light falls on the reflective surface consists of silicon crystals.
The main difference lies in the point that in DLP, right and left images are projected in sequence, but in SXRD, a chip is divided into two equal parts for both eyes. This technology works only with those projectors having 4k resolution. Theater halls are very populated, and people are sitting in the last rows, so the projector must have high brightness so that everyone can have a clear view.
When I looked at the projectors, they are capable of taking the image that is projected and putting it on a screen that could be up to one hundred feet away. Keeping the crystal clear images for 4K or Ultra HD is definitely a challenge, but it is one the projector manufacturers like Sony have solved. After finding out about the quality of the projectors it really piqued my interest to see that they had to meet a DCI compliance.
That really had me flummoxed as I had no clue what DCI meant or even what type of impact it would have on the movie projector world. With a little bit of research, I found out that the DCI was basically the way that was meant to test and document the reliability of the projectors that are on the market. The testing would go further as it would even test the performance of the units as well to help guarantee they would last for a long period of time without losing their ability to have a great picture projected onto the screen.
However, instead of having the older film reels like they used to, the theaters now rely on a lot of different methods to get the projection completed, and typically it is using a DCI compliant digital cinema projector. And start to ask why it cost so much. That coupled with the cost of the movie to the theater and it is easy to see why the popcorn cost fifteen dollars a bag.
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