Overhead Projectors

Projectors make it simple to show presentations and training materials to large groups. Overhead projectors maximize space and ensure everyone in the room can see what's on the screen without crowding together. Staples carries a variety of projector brands that fit the needs of most offices and users, like BenQ projectors, Epson projectors, Dell, and more.

Consider the Lens Options on Overhead Projectors
LCD projectors come with different lens options that affect how the images appear on the screen. While most options available use DLP (digital light processing) technology to create the image, the use of singlet, doublet and triplet lenses impacts image quality. Singlet models provide adequate contrast and sharpness for black and white text and images. Doublet lenses provide quality that spans both black and white and color graphics. Triplet lenses reproduce presentations with small text and high-resolution graphics, ensuring sharp contrast and clear lines for easier viewing.

Understanding Open and Closed Heads on Overhead Projectors
Overhead projectors are available with open or closed heads, and each option affects focus and maintenance. Home theater projectors with open heads let users quickly access the lens and mirror, making focus adjustments simple. Open models let users remove dust and fingerprints from the lens, ensuring presentations appear clear. Models with closed heads have lenses and mirrors that are enclosed inside the unit. This seals out dust and fingerprints and protects the components from damage due to bumps and shifting. Closed-head models provide increased protection for projectors that are moved frequently or used in high-traffic areas. Use open-head projectors in media and conference rooms that don't receive much foot traffic.

How Many Lumens Are Necessary on an Overhead Projector?
Lumens describes the overall brightness of an overhead projector, which helps show how much detail and color will be visible in the presentation. While most models have between 1,001 and 3,700 lumens, you need to consider the lighting in the room to choose the right option. Lower lumens will provide a sharper image in rooms where users can dim the lighting during use. Rooms with more ambient lighting, such as those with large windows, require higher lumens for improved visibility. Consider options with lamp settings that let users choose the lumens based on the color and detail desired in the presentation.

What Does Throw Distance Mean For Overhead Projectors?
The throw distance describes how much space can be between the projector and the wall or screen on which the images are displayed. Some models will include throw ratios to show the optimal number of feet between the projector, divided by the width of the screen. This lets users choose units with ratios that match the screen size and available space in the room. Options with short throw ratios pair well with smaller rooms, while long throw designs can cover larger venues without losing detail.

Do Overhead Projectors Have a Long Lamp Life?
The lamp life of overhead projectors depends on the type of lamps and the lumens rating of the device. Most projectors use an ENX type lamp, which provides increased lamp life even with higher lumens outputs. Specialized lamps, which include ENG, FXL and EHA, provide a shorter lamp life. Purchase new projector screens while shipping with Staples.