Screen Projectors

screen projectors
Screen projectors History of screen projectors screen projectors
Screen projectors
History of screen projectors
screen projectors

Screen projectors



The History of Screen Projectors

The age of technology has improved everything and created so many facilities for us. A few decades ago, we could not even have imagined that technology could advance so much within the span of such less time. But one of the modern technological instruments, the screen projectors, has been around for hundreds of years. Every invention today has grasped its roots from history and is basically a modification of the inventions that have existed for hundreds of years. Screen projectors are also an adaptation of the projectors that have been found in the 1600s.

In the 17th century there were the magic lanterns that had a still image painted on a translucent paper and a lantern was lighted behind the image. The image was then projected on the walls. However, this was a still image. In the late 1800s and the entire 1900s there was a great development of screen projectors until we got what we have today. The inventors used the human eye's persistence of vision to create the projectors that were used to make short movies. Movies is a short form of the phrase moving pictures, but has become so popular that it has been added to the English dictionary.

Many projectors were created and modified through out the 19th and 20th century. The screen projectors basically used a light source to project moving pictures on a bigger screen. The moving pictures were initially drawn on a wheel that was moved by hand to create the illusion of movement. Later, the screen projectors used small motors that revolved the wheel to project the movements on the screen. Finally, in the 1930s, the first color film received its debut. Inventors realized that people were ready to pay for this kind of entertainment and therefore created more variation in the screen projectors to make them much better. Gradually, manufacturers added much more technological solutions to the screen projector and it became more and more automated and better in projection. Initially the movies were simply of a few minutes, and later were made of hours. As technology progressed the screen projectors have become more and more refined, but the basic function of screen projectors has remained the same. It uses light to illuminate movement on the screen.

In older times the class lectures used to be the boring same professor speaking at the podium and writing notes on the board. Classes were an endless drag of hours and hours, but screen projectors have also had a great impact on the educational frontier. Now teachers, professors and lecturers make full use of screen projectors. Many softwares like Microsoft PowerPoint enable its users to create slides. Using screen projectors these slides are projected on a screen for the students to view them. The lecture becomes more interactive and the teacher does not have to waste time by writing notes on the board. For the students as well, the teachers now expect them to make use of the screen projectors and make their own project presentations interactive. The screen projectors have created many more possibilities of use than just being used to project movies.

It is not at all difficult to use screen projectors either. You can easily learn how to use them by reading their many detailed manuals. There are also many computer courses in which people are taught how to create presentation slides and the use of the projector. There are screen projectors of many sorts. There are some screen projectors in which the movie is loaded and it plays the movie on screen. There are also computer screen projectors that are used to project whatever is on the computer screen on the bigger screen which makes teaching very easy.

The screen projectors are an advent of the technology but have their roots in the old history like many other technological devices. Their journey through time has created an advanced version of projectors today. Screen projectors have revolutionized the movie world as well as the theatres. The screen projectors are now used for educational purposes as well, which is a deviation from their initial use only for entertainment. As time progresses and technology advances, we might learn more uses for screen projectors.




screen projectors
Screen projectors History of screen projectors screen projectors
Screen projectors