Auraia DM Screening

Overview

Auraia DMS, named after the Greek word for beautiful – ωραίος – is Hamillroad’s revolutionary “Digitally Modulated” Screening for litho and offset. Auraia DMS perfects halftone screening by achieving the high level of image detail associated with FM/stochastic screening as well as producing ultra-smooth flat tints as smooth as, and typically smoother than, AM/XM screening.

New techniques

Auraia Digitally Modulated Screening utilizes ground-breaking patented technology to create a unique product that combines the best characteristics of AM, FM, XM, GS and CS screening techniques, while avoiding their limitations and problems. Auraia DMS dramatically enhances quality, stability and gamut, while delivering ink savings over conventional screening. Auraia DMS delivers these benefits in real production environments with plate and press conditions not normally thought to be capable of FM or high lpi AM/XM screening.

Digital modulation (DM)

DM screening digitally modulates each and every pixel it produces – precisely controlling the dots in each separation as well as those between the separations to effectively eliminate noise and graininess. It does this through the use of a “stochastic rosette”, which interleaves the screens in the separations to eliminate noise and moiré. In addition, the stochastic rosette also maximizes the ink-on-paper area and minimizes the amount of ink-on-ink, which expands the available color gamut while eliminating color shifts due to misregistration.

The screening analyzes each pixel to ensure that no dot is too small to plate or print yet still not large enough to be visible. The result is a quality of print, even on violet devices, previously unobtainable.

No longer are printers restricted by problems with moiré, misregistration, rosette drift, color shifts, banding, dot gain variation, dot or shadow loss, etc. but are free to do what they do best – meet their print customer expectations with ‘beautiful’ presswork.

Highlights

  • High fidelity printing equivalent to 400-500 lpi
  • Moiré free – both screening and subject
  • Highlight dots down to 0.01%
  • Shadow dots up to 99.99%
  • Extremely smooth vignettes and flat tints
  • Works on violet, UV and thermal systems
  • Potential ink savings of up to 20%
  • Easy to plate and print on press
  • Retains image detail of 600-800 dpi scans
  • Fully optimized 64-bit version for HMR-10 / 11
  • Fully threaded (with Lightning TIFF/PDF/LEN) for higher performance
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Patent Information

Protected by the following patents:

  • UK Patents 2473475 and 2473476
  • US Patents 8,654,400, 8,654,401 and 9,508,031
  • Chinese Patent ZL201080051176.X
  • Other patents pending

Compared with AM Screening

Auraia DM Screening uses specially shaped dots that like an AM screen minimizes problems with dot gain and is easy to control on press. However, unlike an AM screen, it does not suffer from problems such as highlight dot loss, moiré and a lack of image detail.

Compared with FM Screening

Like an FM screen, Auraia DM Screening produces a stunning level of image detail, equivalent to 200-400 lpi for newspaper printers and 400-500 lpi for commercial printers. However, unlike an FM screen, it does not suffer from problems such as noisy flat tints and a lack of consistency/controllability on plate/press.

Compared with XM (hybrid) Screening

Auraia DM Screening precisely controls the size of its highlight and shadow dots which like an XM screen allows it to retain a full tone range of 0-100%. However, unlike an XM screen, it does not suffer from problems such as moiré, or noisy flat tints and color shifts on misregistration.

Compared with GS Screening

Like a Geometric Screen, Auraia DM Screening uses carefully crafted geometric shapes that improve the stability on press and eliminate problems such as rosettes and color shifts. However, unlike a Geometric Screen, it does not suffer from problems such as moiré clashes with image content or a lack of image detail.

Compared with CS Screening

Auraia DM Screening uses specially shaped dots that like a Concentric Screen minimizes ink build-up on dots, which maximizes the amount of light filtered, thus producing significant ink savings. However, unlike a CS screen, it does not require high-end plates to hold tiny pixel shapes that suffer from wear.

Auraia, DM Screening and DMS are trademarks of Hamillroad Software Limited.
All other names are trademarks of their respective organisations.