TITLE
    Apple Monitors: ELF Emissions Not Affected by Refresh Rate
Article ID:
Created:
Modified: 		10084
4/14/92
4/14/92
TOPIC




    Is there a correlation between a monitor's DPI resolution and ELF
    emissions?

DISCUSSION

    The refresh rate (the number of times a video image is refreshed on the
    screen) determines the frequency at which ELF is emitted, but the refresh
    rate does not increase the amplitude or levels of ELF emitted from the
    monitor. Crisp color graphics require a wider video bandwidth than
    text-based systems, so there is the possibility of increased VLF and high
    frequency emissions, but the ELF spectrum remains unchanged.

    Apple's products are constantly tested and compared against existing and
    proposed international standards. We continuously follow scientific
    developments in the field of computer health and safety. Members of
    Apple's Environmental Health and Safety group as well as representatives
    within Product Development, Product Marketing, and Engineering Services
    keep track of new findings.


Document Information
Product Area: Monitors-Displays
Category: General Topics
Sub Category: General Topics

Copyright © 2000 Apple Computer, Inc. All rights reserved.