Specialty and Architectural Lighting — Projection Metrics

For several years we’ve heard the drum beat of the impending take-over of the traditional metal halide LCD / DLP projector lamp by either LED or laser based projection systems. At this point in time (early 2016) the verdict remains on the side of traditional metal halide replacement lamps. Using the projector database tool on Projector Central, we get the following number of projectors currently availabe by light source: Metal Halide: 5643 (1400 currently available)...

Digital projector specifications always include values for brightness and contrast. While there are many factors that determine the best projector for an application, knowing the brightness and contrast may quickly qualify the projector, or not, for it’s intended use. Brightness is projector light output measured in lumens - the higher the lumens, the brighter the projector. Generally, projector prices go up as lumen output increases. Contrast is presented as a ratio between the brightest and...

When most people think of digital projectors, the images that come to mind are of substantial pieces of equipment with multiple input sources, brightness from 1000 to 4000 lumens and large projected image size that weigh-in at 5 to 10 pounds. Usually these projectors are permanently mounted on walls, ceilings or tables in home theaters, conference rooms, classrooms and church sanctuaries. There are three categories of projectors built for mobility and designed for small group...

Many projector manufacturers tout a relatively new specification, color brightness, as one of the prime selling features of their projectors. Why might this metric be important when look to purchase a projector? The viewer’s awareness of color has been raised significantly by improvements in digital technology. The images seen today on computer monitors, tablets, smart phones and HD televisions provide full range, saturated, vibrant color. This viewing experience leads to the expectation that, when projected...