Projected Image Standards Open For Public Review

Geny Caloisi

Using projection for DOOH applications is not always easy and some installations face real challenges with high ambient light. InfoComm International’s latest initiative to set up a standard for the Projected Image System Contrast Ratio could help installers choose the best projector and screen solution.

The standard, called 3M-2011, is open for public review and comment. A one-page overview can be found on InfoComm’s website. It provides metrics for measurement and defines minimum contrast ratios for rear and front projection audiovisual projected image systems. It applies to both permanent and temporary installations.

The system contrast ratio refers to the image as it is presented to viewers in a space with ambient light. Metrics to measure and validate the defined contrast ratios are also provided.

“This new draft Standard is designed to aid with projector and screen selection, in conjunction with lighting system and light control design.” said Randal A. Lemke, Ph.D., Executive Director and CEO, InfoComm International. “The development of this Standard marks an important milestone for anyone who uses AV equipment and the professional community that provides services to them.”

InfoComm’s consensus standards development process is accredited by ANSI, a private, non-profit organization that administers and coordinates the US voluntary standardization and conformity assessment systems.  ANSI is the sole US representative of the two major non-treaty international standards organizations, the International Organization for Standardization (ISO), and, via the U.S. National Committee (USNC), the International Electrotechnical Commission (IEC). Accreditation by ANSI signifies that the procedures used by InfoComm International in connection with the development of American National Standards meet the Institute’s essential requirements for openness, balance, consensus and due process.

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