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DPI Boosts LED PJ Brightness

Indianapolis – In advance of its presentations at this week’s CEDIA Expo, here, video projector resource Digital Projection International (DPI), said it has made brightness upgrade to its entire LED projector lineup.

The advancement comes by from DPI’s engineering team taking newly available components to produce LED-driven projectors with higher luminance, (select models now break the 1,000-lumen threshold, the company said).

The enhanced projectors carry suggested retails of between $12,995 and $39,995, targeting residential and commercial applications.

DPI said the LED display options can be found in a variety of resolutions within both the M-Vision series and dVision series of DPI’s product offering, with the new dVision 35-series LED models also offering 3D capability. 

In addition to the brightness boost, DPI’s LED displays continue to carry the company’s Lifetime Illumination (60,000+hour) claim, which vows “virtually maintenance-free imaging” without a lamp replacement and at a fraction of the electricity consumption of typical UHP lamp-sourced projectors. 

DPI pointed out that LED technology puts out less brightness than lamp-based counterparts, but LED displays “are perceived as being much brighter than their measured luminance specifications,” due to the Helmholtz-Kohlrausch effect (H-K effect).

The International Electrotechnical Commission defines the Helmholtz-Kohlrausch effect as “a change in brightness of perceived color produced by increasing the purity of a color stimulus while keeping its luminance constant within the range of photopic vision.”

Meaning, the H-K effect describes a situation in which two color stimuli sources with the same luminance are compared, the perceived brightness induced by the color stimuli of higher purity will be higher than that of lower purity.

LED illuminated projectors produce extraordinarily high color purity and saturation, explaining their brighter appearance alongside lamp-based displays of equal lumen specifications.

DPI said the LED projectors are ideal for critical 24/7 projection applications, as well as any application needing long-life projection systems with unmatched color saturation, lumen maintenance and color stability.

DPI’s higher-lumen M-Vision LED and dVision LED displays will benefit from the Lifetime Illumination 60,000-plus-hour lifespan.

The company said the RGB-based LED illumination system eliminates the need for a color wheel in-single-chip DLP models to produce primary colors.  Instead, red, green and blue LEDs produce primary color illumination, rendering a color gamut and color saturation similar to that of a three-chip DLP projector with no color wheel artifacts.

Additionally, certain LED displays in DPI’s product line feature FastFrame technology, which helps to keep fast-moving subjects free of motion smear.

DPI will demonstrate its range of projector models at booth 3454 during CEDIA, Sept. 6-8.