World Library  
Flag as Inappropriate
Email this Article

SeaChanger Color Engine

Article Id: WHEBN0010443981
Reproduction Date:

Title: SeaChanger Color Engine  
Author: World Heritage Encyclopedia
Language: English
Subject: Source Four, Color scroller
Publisher: World Heritage Encyclopedia

SeaChanger Color Engine

The SeaChanger Color Engine is an electro-mechanical device that is used to control light color in entertainment-industry lighting applications. The unit employs four overlapped color filter wheels, inserted into a light beam near its source, to produce colored light. This is in contrast to color scrollers, which insert color filter ribbons into a light beam. The color engine, which was released by Ocean Thin Films in 2005, is designed to fit into the Source Four lighting instrument made by Electronic Theatre Controls.[1]


The SeaChanger Color Engine is designed to fit between the reflector assembly and lens barrel of a Source Four ellipsoidal, replacing the gobo slot and accessory slot. It is designed to be installed without tools.

The unit is available in profile and wash versions. The profile model uses the lens barrel and reflector assembly of a Source Four, while the wash model uses only the reflector assembly. The manufacturer provides a lens assembly for the wash unit. There is also a high-intensity discharge lamp (HID) model available wherein only the lens barrel from the Source Four is used in the profile fixture. The wash version of the HID fixture is a completely stand alone unit, not using Source Four components at all, although the same color engine technology is used.

The color engine contains integral power supply and communication interface. The unit mounts between the lamp housing and the barrel assembly of a Source Four fixture, meaning that it is placed directly in front of the source, or lamp and before any optics or beam shaping devices. Inside the unit, four micro-lithographed dichroic filters are gradually saturated from 0-95%. The optional Studio Dichroic color filters are gradually saturated from 0-100%. Wheel colors are standard CMY, having one wheel each for cyan, magenta, and yellow, as well as one green wheel. The SeaChanger profile is unique in that its green color filter increases its color gamut to include deep blues, reds and greens that are difficult to create through dichroic color mixing. The green wheel may be replaced with black for mechanical dimming purposes in HID fixture applications or other applications where dimmers are not available. Stepper motors turn each of the wheels to create colors, with wheel position and speed controlled by a four-channel DMX512 or RDM signal from a lighting console.[1]


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.