• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer

mkpeReport

top analysis covering digital cinema, 3-D, HFR, and laser illumination

  • Reports
  • About
  • mkpe.com
  • cinepedia.com

ASC To Study Metamerism With Laser Illumination

June 2013 by Michael Karagosian

The most desirable quality of xenon light is the uniformity of its visible spectrum. In film systems, the entire visible spectrum is used, with only filters for infrared and ultraviolet wavelengths. In digital projectors, the visible spectrum is filtered into overlapping color bands of Red, Green, and Blue. The advent of laser illumination, however, introduces a new wrinkle. Instead of starting with a full visible spectrum and deriving component colors for the digital projector, lasers are used to either directly generate the primary colors, or the primaries are derived from a higher frequency laser. The full spectrum is never recreated in laser illumination, setting the ground for visible artifacts in color perception referred to as metamerism. This subject was discussed at length in my May 2012 report. The American Society of Cinematographers is now taking steps to better understand the effects of metamerism caused by laser illumination with the formation of a Laser Illumination committee.

The impact of this study could be far reaching, making it one of the most important studies undertaken in the cinema community since the compression evaluation tests conducted in 2001. The study could validate the work of current laser development, reducing one more barrier to entry. At worst, it could provide guidelines for the development of laser illuminators that meet the visual standards of cinematographers.

The need for this study is self evident. Sessions are now given in trade show demonstrating the not-obvious and often unexpected effects of narrow band RGB lighting on sets, educating the industry as to the impact of new light sources. Many people who have closely observed laser illuminated images report color casts in the images. Notably, the color cast is not observed by all attendees, indicating that metamerism is at work.

Eric Rodli, a past COO and Vice President of Entertainment Imaging at Kodak, is taking the lead, along with Steve Schklair of 3ality Digital. Your author, of course, decided to join the fun. Mr. Rodli is a consultant to Laser Light Engines, which holds significant patents in this area. Assuming LLE will be a source of laser illuminated projectors, it’ll provide a close working relationship between technology provider and cinematographers. Knowing how these things develop, it will likely take until the end of the year to organize a test screening comparing xenon and laser illumination with the same source material.

Filed Under: Projectors Tagged With: ASC, Laser Light Engines, Laser Projectors

Primary Sidebar

Search

Topics

  • 3-D
  • Accessibility
  • Alt Content & Advertising
  • Anti-Piracy
  • Color
  • Communications
  • Deployment Entities
  • Distributors
  • Exhibitors
  • Fulfillment
  • High Dynamic Range
  • Higher Frame Rates
  • Installations
  • Patents
  • Projectors
  • Servers and IMBs
  • Sound
  • Technical Bodies
  • Theatre Management Systems
  • Trade Organizations and Shows

Full Archives

a publication of
MKPE Consulting LLC

Footer

Important Stuff

  • About
  • Privacy Policy

Archives

  • Category & Monthly Archives
Archives date back to 2008.

MKPE

mkpeReport is a publication of MKPE, a world-class consultancy building business at the crossroads of cinema and technology.
Learn more about MKPE.

copyright © 2008 - 2023 mkpe consulting llc

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of all cookies.
Cookie settingsACCEPT
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT
Powered by CookieYes Logo