Government - frequently asked questions (FAQs)
Top questions regarding DLP® projectors
for government use.
Selecting a projector can seem like a daunting task, and there is more to consider than just “How much does it cost?” With all the options and features available today, here are a few things to consider when selecting a projector to get the maximum value for your government:
What is the lifetime cost of ownership for this projector?
Costs of a projector go well beyond the initial price. While some LCD projectors may have a slightly lower price, they may require more maintenance (filter cleanings and replacements) and may not provide reliable performance over the lifetime of the projector. The result could be a higher cost for your government.
What is the native contrast ratio?
This is key for readability. High numbers are better such as 2,000:1 or 3,000:1. Be sure that you mention “NATIVE”. Some LCD projectors might list a high contrast ratio, but then qualify this as “up to” depending upon what image is on the screen. Native contrast ratio is the constant, measured degree of black to white that is displayed continuously.
Does it require a filter?
Filters are usually required for LCD projectors to protect the exposed imaging elements from dirt and dust. DLP® projectors have sealed optics and typically do not require filters that must be cleaned and changed.
How bright is the projector?
Brightness is measured in “ANSI Lumens”. This term describes the brightness on the screen. Depending upon the ambient light in the room, the projector may need to offer higher brightness for optimal viewing. For most classroom settings, 1500-2000 lumens or higher is preferred.
What is picture reliability?
Picture reliability is how the image of the projector will look over time. You may have seen a projector image that looks yellow or greenish and wondered what might have caused it. Well, what you have seen is called color decay. Projectors that utilize DLP® technology are virtually immune to color decay. If you want stunning picture quality that remains consistent over time, and vibrant, rich, lifelike colors, then insist that all your projectors include DLP® technology.
What is the optimal physical size projector for me?
The optimal size for a projector depends on how it will be used. If the projector is meant to be mounted to the ceiling to be in a fixed location, then the size is not as important as the rest of the projector’s features. If the projector will be moved from location to location, then a more portable projector should be considered. With total weight as low as two pounds and under, DLP® projectors lead the pack for lightness.
Not sure what all that projector terminology and mumbo-jumbo means? Visit our Projector Glossary to learn more
