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Introduction To Projectors
The first projector was in 1800's and used glass slides. The lamp and candle served as a source of light that projects the image on the screen. (Date, Month, Year are unknown) Work cited (http://www.edtechmagazine.com/k12/article/2013/02/vision-learning-history-classroom-projectors) -
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The first movie projector was the Zoopraxiscope, invented by British photographer Eadweard Muybridge. The projector shows the picture by rotating the glass disk. This projector shows very small motion picture with more brightness and accurate than the old projectors. (Date and month is unknown) Work cited (https://en.wikipedia.org/wiki/Movie_projector) -
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Opaque projector was used from 1900's for study and educational works by keeping the materials in front of the projector.. This projector can display large image of small objects without changing it's physical nature. It is also used to display documents like a paper. (Date and Month are unknown) Work cited (http://www.projectorcentral.com/projectors-evolution.htm). -
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Slide projectors started in 1950's and were capable of display anything. But unlike opaque projector the material have to be converted in 35mm slide. (Date and Month is unknown) Work cited (http://www.projectorcentral.com/projectors-evolution.htm) -
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Overhead Projector are commonly used in study campus and were invented after slide projector. It is similar to the slide projector and the material have to transferred in the another medium. This type of projector were modified and were made more and advanced for coming years. (The Date , Month is unknow) Work cited (http://www.projectorcentral.com/projectors-evolution.htm) -
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Video Projector were also made in 1990's and were similar to the computer projector. Video projector had less graphics and were costly and portability was also limited. This new projectors were made with the same principle of this type of projector. (Date and Month) Work cited (http://www.edtechmagazine.com/k12/article/2013/02/vision-learning-history-classroom-projectors) -
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Computer Projector came into existence in 1990's and served as the first digital projector. This projector were used for entertainment and educational purpose. They were smaller in size compare to old projectors and were more efficient. (Date and Month are unknown) Work cited (http://www.projectorcentral.com/projectors-evolution.htm). -
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Multimedia Projectors are the most common projector used in today's world. This type of projector supports data and video and are used to many purposes, for home theater, educational purpose, business purposes. This projector are usually high dimensional with better graphics. (Date and Month are unknown) Work cited (http://www.projectorcentral.com/projectors-evolution.htm)
