OVERHEAD PROJECTOR COMPARISON CHART

USI offers several types of overhead projectors, and each is designed to fill different user requirements. Here are a few things to consider when deciding which projector is best suited for your application.

Which Projector is right for you?

We have put together the information below to help you choose the overhead projector that best fits your needs. Overhead projectors are widely used as a simple and reliable presentation solution. The biggest advantage of using an overhead projector is the ability to write and erase throughout your presentation session. To make the best use of your projector choose the model that is right for your application.

IF YOU ARE PRESENTING:	YOU NEED THESE FEATURES:
Small print, spread sheets and detailed graphics, and high resolution color graphics	Triplet head lens Recommended projectors: 3M 1895, 9550, 9700, 9800, Apollo Cobra or Odyssey
Less-detailed color and black/white images	Doublet head lens Recommended projectors: 3M 1730, 1780, 1830, 1880, 1885
Black/white graphics and large text	Singlet head lens Recommended projectors: 3M 1760, 1810, 1820, 1830, 1880, 1885
IF YOU GENERALLY WORK IN THIS ENVIRONMENT:	YOU NEED THIS BRIGHTNESS:
Large meeting rooms and auditoriums and normal-to-bright lighting	3000 lumens or more Recommended projectors: 3M 9800, 1895, 1885, 1865, 1825, Apollo Cobra or Odyssey
Medium size meeting rooms and classrooms and normal lighting	2500 - 3000 lumens Recommended projectors: 3M 1880, 1870, 1860, 11850, 1840, 1830, 1820, 1810
Small meeting and training rooms with dim lighting	2500 lumens or less Recommended projectors: 3M 12770, 2000, 780, 1760, 1730, 1720, Apollo 8102 or 8100
IF YOU NEED THIS TYPE OF CONVENIENCE:	YOU NEED THESE FEATURES:
More protection to keep out dust and fingerprints	Closed head Recommended projectors: 3M 1820, 1825, 1830, 1860, 1865, 1880, 1885, 1780, 1760, 1730, 1720
Compact and easy to clean	Open head Recommended projectors: 3M 2770, 2000, 1840, 1810
Lower projector height for a better screen view	Inverted head Recommended projectors: 3M 1895, 1870, 1850
IF YOU NEED A PROJECTOR TO TRAVEL:	YOU NEED THESE FEATURES:
Hard-sided case	Open-singlet lens, self-contained Recommended projectors: 3M 2000 for basic performance
Soft-sided carrying case	Triplet lens Recommended projectors: 3M 2660 for high performance

Before purchasing or using an overhead projector, it is a good idea to become familiar with the following components and options.

Lenses
Overhead projector lenses come in three different variations: singlet, doublet, and triplet. The image projected will get sharper as your lens quality increases (singlet is the most basic; triplet is the most advanced).

Brightness
A projector´s brightness is measured in lumens. There is a wide range of lumens available. Lower lumen models work best with black and white images. When using color, choose an overhead projector with high lumens so the color is vivid and bright.

Head Types
Closed: Lenses and mirror are enclosed to keep out dust and fingerprints.
Open: Lenses and mirror are not enclosed.
Inverted: This is an open-head version. An inverted head lowers the projector height so it is easier to view the screen.

Features
Lamp changer: For uninterrupted use if lamp burns out during presentation.
Color tuning: For image color adjustment in a wide range of projection.
Lamp High/Low switch for brightness vs. Longer lamp life.
Folding Post for storage and portability.