Are you PISCR? You Need to Be!

dnp-gary-0215There’s an InfoComm/ANSI standard known as PISCR that every integrator should be familiar with. Why?

The PISCR standard provides metrics for measurement and requirements for minimum contrast ratios for rear and front projection audiovisual projected image systems — but, it’s application based; not projection device based.

This standard applies to both permanent and temporary installations, defines projected image system contrast ratio and its measurement. This standard defines four contrast ratios based on content viewing requirements: Passive Viewing, Basic Decision Making, Analytical Decision Making and Full Motion Video. 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.

The standard puts the needs of the viewer ahead of all other considerations. Its requirements move beyond individual performance factors of a projector and a screen, because the contrast ratio they can deliver is ultimately affected by the light in the space.

Well, dnp was founded as the projection screen industry’s first screen manufacturer focused on ambient light rejection — throwing away light that’s pointed at the screen that’s not supposed to be (e.g. non-projected light) — like the overhead lights in a room. With their screens, you can integrate them into rooms and environments and install them such that they actually absorb as much as 90% of the ambient light in a room and only reflect projected light. That means you get an increased contrast ratio for the room. Thus, dnp screens help you meet the PISCR standard.

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I shot a video today — when no one was in the dnp booth, to demonstrate this and explain how it works. Here’s the video.

Gary Kayye

About Gary Kayye

Gary Kayye, founder of rAVe Publications, is one of the most prominent personalities in the audiovisual industry. He has been a contributor to WIRED magazine and a technical advisor and columnist for Sound & Communications magazine as well as an opinionated columnist for rAVe [Publications] since 2003. In addition to his writing and market analysis, Gary has been a product, marketing and business operations consultant to dozens of AV companies in the U.S. and overseas. Clients have included companies such as Sony, Sharp, Epson, Lutron, InFocus, Sanyo, Mitsubishi, NEC and Philips.   Gary, who has been involved with the audiovisual market for over 20 years, was the recipient of the InfoComm 2003 Educator of the Year Award and the 2007 NSCA Instructor of the Year Award. Over the years, he has donated much of his time as an active volunteer in the AV industry’s trade association and served as chairman of InfoComm’s Professional Education & Training Committee (PETC), chairman of the ICIA Design School Committee and chairman of InfoComm’s Installation School Committee. In addition, he has served on the InfoComm board of governors. He also helped grow the InfoComm Projection Shoot-Out as the premiere AV industry trade show special event serving on the committee from 1991 through 1997, and was instrumental in launching the Shoot-Out in the European market at the Photokina Expo in 1994 and 1996 as well as the Asian market at the 1995 and 1997 INFOCOMM Asia shows.   Prior to founding his own company, Gary was vice president of sales and marketing for AMX Corporation (www.amx.com), a manufacturer specializing in professional AV and residential AV control systems. Prior to AMX, Gary spent nine years at Extron Electronics (www.extron.com), rising to the position of vice president of sales and marketing. Gary earned his bachelor’s degree in journalism in 1987 from the University of North Carolina and is currently Adjunct Faculty at UNC in the School of Journalism teaching a class on how future technologies will affect the future of advertising, PR and marketing.   He is also the founder of Swim for Smiles, a non-profit that raises money for the N.C. Children’s Hospital through swimming and other fitness-related events for kids. You can contact him at gary@ravepubs.com..