Overhead Projector Lens
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My 6 inch Opaque Overhead Projector Lenses
Steps to Choose an Overhead Projector
If you would like to do the process of presentation, the use of overhead projector is important because it will help you to make easier your jobs so you can take benefit from it. In fact, each unit is designed for some uses so you must be careful in choosing the proper one that will support you to present the information provided. To help you in choosing the best one, just follow the instructions below.
The first tip you have to know in the process of selection is to know your audience. By knowing your audience, you will be able to gain the right product of projector that features with the ones that will be important for you. For children, you can choose the one that houses the lens in a closed head. For the older audiences, it is advised for you to choose the one that is compact and has open head model.
The first tip you must consider when choosing this unit is to evaluate the lenses needed. In evaluating the lenses, there are some things included such as singlet, doublet and triple. If you choose the lenses that have more elements, those will be able to produce high quality of images. If you would like to project the larger images close up, it is better for you to choose a flip-up wide angle lens.
The next tip to know well in choosing it is to estimate the brightness. It is better for you to choose the brightness that ranges between 1,700 and 11,000, and it is based on the model of OHP you choose. When thinking about the brightness, it is also important for you to consider the brightness had by the room so you can make the right combination in a good way and you can do presentation very well.
About the Author
To help you in determining the right option, you can choose Hitachi LCD projectors that will be great for you. Besides, you can take digital overhead projector which is the latest model for your needs.
What is the origin of the name "ELMO" for the electronics equipment?
ELMO is a company name. The manufacturer produces electronic equipment. One of the products they sell is called an "ELMO". It is a variation on the old overhead projector, but you don't need to use a transparency. It will project whatever is placed under the lens.
Extreme Light Magnification Output ?... me and my brothers grew up in the 50's/60s' with something like that called a "MAGNA -JECTOR".it looked like a bulky hand held spotlight.the bottom was open,you placed it on top of a picture, or anything that could stand the heat of a 60watt bulb.some times we put it on each others heads, or the dog.(dont try this at home!no animals were hurt! we on the other hand,bbuhhhaaaahahaa!).the light was in back, pointing down to the image.it reflected up to a mirror, that was angled to point the light foward, through a lense that you adjusted for the distance from your screen or wall.
