Projectors can only perform as well as their lenses allow, just as TV image quality must abide by the fortitude of the panel at hand. So, it’s very easy to claim 4K but will the lens assembly do the resolution justice? How long will it last before distorting due to temperature variance? You could have the finest DLP chip in the world, but with a mediocre lens as the focus of projector output it’ll be wasted.
That doesn’t happen with BenQ 4K projectors. Our projector lenses comprise of up to eleven layers or pieces, with one slide serving as a dedicated focusing element. Lens elements are then enclosed in a metal “barrel” to assist in light focusing and keeping out interference. We’ve assembled an entire team of optics experts that work in-house on developing and testing projector lenses. We only employ the finest, most durable all-glass lenses, as opposed to cheap plastic optics or solutions that use mixed materials and thus invite inconsistency. Tough glass offers upgraded heat resistance, an important factor since projectors inherently place a considerable heat burden on their lenses.
Additionally, BenQ projectors with DLP technology have the advantage of long lifespans. DLP, or digital light projection, uses an array of millions of mirrors to direct light. Other brands use cheaper LCD panels, and as you know LCDs don’t age very well, over time developing image uniformity issues and problems with fading. Together with our choice of DLP over LCD, we use lens designs that prevent distortion and warping, because an off-spec lens or light processing device means a compromised image.