Understanding Media Transparency and Usefulness or OHP Function

Understanding Media Transparency

Media transparency or Overhead Transparency (OHT) is often referred to by the name of the hardware Overhead Projector (OHP). Media transparency is a visual medium above projections made of transparent material, usually acetace films or plastic measuring 8.5 "x 11". As software, transparency material containing instructional messages that require a special tool that is projected on the screen (scream). Tools for projecting the transparency called Overhead Projector (OHP).

OHP is a tool for projecting objects transparent (opaque) to the surface of the screen. OHP as a tool designed specifically so that it can project the transparency onto the screen through the top or side of the head of the person using it. There OHP transparencies that use measures 3.25 "x4"; 7 "x7"; or 10 "x10", but the most commonly used is the size of 8.5 "x 11". Various objects or messages written or drawn on the transparency of such diagrams, maps, charts, definitions and so forth can be projected through OHP. As for the parts of the OHP are: 

1. Head projector

2. The projection lens

3. Setting the sharpness of the picture

4. Alas glass (a place to put transparency)

5. Ventilation slots

6. The on-off

Usefulness or OHP Function

Usefulness Over Head Projector (OHP) OHP useful for projecting transparent to the screen, with the images large enough.

OHP is generally used for:

1. Substitute the board using a special pen that is written on a transparent sheet.

2. Place shows the shadow of an object.

3. To demonstrate an experiment

4. The show transparency that has been prepared