These Projectors Bring To Life Images Onto The Screen, And Make Information More Eye-catching. These Are Effective Tools In Letting Your Audience Get A Visual Experience Of Your Presentation, Rather Than Mainly Relying On Your Voice And Their Hearing Senses.There Are Actually 2 Types Of Overhead Projectors, Namely The Transmissive And The Reflective Projectors. For The Transmissive Type, The Light Source Is In The Base, And Works Very Well With Computers Using Liquid Crystal Display Projection Panels. The Reflective Type Has Its Light Source Located In The Head Of The Projector, And Fits Well For Use With Transparency Films. The Lenses Of Overhead Projectors Come In 3 Different Variations Namely The Singlet - As The Most Basic, Then The Doublet, And Lastly, The Triplet As The Most Advanced. As The Lens Quality Increases, The Sharper The Images Get. For The Brightness Of The Overhead Projectors, At Least 4,000 Lumens Output Is Needed. In Determining The Brightness Level Needed, The Type Of Image To Be Displayed Whether It Be Colored, Or Black White, Should Be Considered. How The Image Is Projected, Whether It Be Thru Transparency Film Or LCD Panel Also Affects The Brightness Level Required Along With The Brightness Of The Room.A Critical Component Of The An Overhead Projector Is Its Lamp. It May Vary According To Type, With Their Corresponding Cost. There Are Those With A Lamp-changer Feature Which Assures That Whenever A Lamp Fails, One Can Change To Another Lamp, Thus Assuring That A Presentation Will Be Completed.To Maximize The Functions Of Overhead Projectors, Check For Other Options That Come With It. One Would Be The Availability Of Stages That Will Fit Well With The Sizes Of The Transparencies That You Are Frequency Using. Stages Are Those Flat Areas Of On Which The Transparency Films Will Be Placed.Another Item For Consideration Would Be That Of Its Warranty And Serviceability. It Is Ideal That The Warranty Is For A Long Period, But Most Importantly That There Is Service Support In Locations Near You. To Determine The Right Overhead Projector For You, Assess Your Needs And What Specific Environment You Usually Do Presentations. Know What Features Are Necessities, And What Might Be Done Without. A Wide Variety Of Overhead Projectors Are Out In The Market, Each With Its Own Set Of Features That Can Cater Effectively To Any Presentation Requirements One Will Need.
