Module 4Projection System

CHARMEIN JAKOSALEM

Filmstrip ProjectorSlide Projector

Overhead ProjectorOpaque Projector

LCD (Liquid Crystal Display) Projector

FILMSTRIP PROJECTORA device used to view a filmstrip.Recorded sounds are made to

accompany the filmstrip.Filmstrip is being shown , players

were built into the projector.Filmstrip projectors are rarely

found in classrooms.

http://www.tpub.com/content/religion/14229/css/14229_340.htmback

SLIDE PROJECTORA device used to view photographic

slides.The term slide refers to a small

format photographic transparency individually for one-at-a time projection.

Size of the slides is 2x2 inch.

HTTP://VISUAL.MERRIAM-WEBSTER.COM/COMMUNICATIONS/COMMUNICATIONS/PHOTOGRAPHY/SLIDE-PROJECTOR.PHP BACK

OVERHEAD PROJECTOR

A box with a large “stage” on the top surface.

A lamp from inside the box is condensed by a special type of lens passes through the transparency that is placed on the “stage”.

A transparency is composed of photographic film, clear acetate, or any transparent material capable of being imprinted with an image by means of chemical, heat process or direct drawing method.

http://www.tpub.com/content/draftsman/14063/css/14063_234.htm

PRACTICES AND REMINDERSPosition the projector at least 2-3

meters from the screen.Avoid projecting on a glossy

surface.Check if the lenses and glass

plate are clean.Place the transparency on the

stage as you would normally view it

Do necessary adjustments with the head assembly and focusing knob.

Make sure that your learners can see what you are projecting. Do not stand in front of the screen.

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OPAQUE PROJECTORA device that has the capacity

to display opaque materials on a screen.

Heavy and bulky.The room needs to be very

dark.It is expensive.

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LCD (LIQUID CRYSTAL DISPLAY) PROJECTOR

It can display video, images, or computer data on a screen or any flat surface.

It is possible to show motion or have accompanying sounds.

http://theaterprojector.org/the-difference-between-dlp-and-lcd