Philips 105G7 manual Flicker, Hertz

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authorities.

MPR-II

The standard originally proposed by the Swedish National Board of Measurement and Testing. It set maximum levels of electromagnetic radiation emitted by monitors, and has now been adopted as a world standard. MPR-II defines maximum permitted electrostatic, magnetic and electric field levels measured at a distance of 50 cm from the center of the monitor (see table).

TCO

In 1991, the Swedish Tjänstemannens Central Organization (TCO, Swedish confederation of Professional Employees ) set a standard even more severe than MPR-II, especially for alternating electric fields (AEF). The TCO standard is more severe since not only are the permitted field levels reduced compared with MPR-II, but the measuring distance is also reduced (see table).

Electromagnetic radiation standards

EMI (Electrical Magnetic Interference)

The electrical and/or magnetic radiation coming from the working electrical or electronic equipment.

EMS (Electrical Magnetic Sustainment)

The ability of electrical or electronic equipment to function properly in the environment with electrical and/or magnetic interference.

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F

Flicker

Very rapid variations in picture intensity caused by the finite time required for the electron beam to scan a picture onto the screen. Two kinds of flicker occur: line flicker caused by the electron beam scanning-in each line of the picture; and frame flicker (or field flicker if the picture is interlaced) caused by the frame repetition rate of 50 frames/second. Frame flicker is noticeable with GUI and DTP software (which have a light background), and can be very disturbing, especially for those who work regularly with displays - contributing to eye strain, headaches, visual blurring, stress, etc. The problem can, however, be eliminated by increasing the refresh rate (number of frames/second) of the monitor to a value above around 70 Hz. Sensitivity to flicker appears to diminish with increasing age.

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H

Hertz

The unit of frequency named after the physicist Heinrich Hertz (1857-1894). 1 hertz (Hz) is equal to 1 cycle/second.

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Contents Page Safety precautions and maintenance Safety and Troubleshooting InformationCommon Problems TroubleshootingReturn to TOP Regulatory Information CE Declaration of ConformityFederal Communications Commission FCC Notice U.S. Only North Europe Information Nordic Countries Commission Federale de la Communication FCC DeclarationErgonomie Hinweis nur Deutschland Bsmi Notice Taiwan OnlyReturn to TOP For units set at 230 Other Related InformationInformation for Users in the U. S For units set at 115About This Guide Other Documents You May NeedNotational Descriptions Return to TOP Lead-free product Product FeaturesTechnical Specifications Product InformationAutomatic Power Saving Power Management DefinitionPhysical Specifications Pin Assignment Pin AssignmentViews Installing your Monitor Front ViewRear View Return to TOP Brightness OSD ControlsAdjusting the Picture Select Customer Care & Warranty Your International Guarantee Eastern Europe Consumer Information CentersLatvia Turkey Latin AmericaPacific CanadaChina AsiaKorea Middle East AfricaFrequently Asked Questions Visual Ergonomics Mprii No requirement. TCO92 No requirement How do I adjust my monitors resolution? How do I adjust the picture on the screen? Picture appears too dim. How can I correct this? Page CE Mark GlossaryBalanced pincushion BNC connectionContrast Color temperatureConvergence error Convergence-error correctionDegaussing DDC Display Data ChannelDDC 1/2B DDC 2BiElectromagnetic radiation standards Digital controlDot pitch Dot rateHertz FlickerInterlaced/non-interlaced Horizontal dot pitchHorizontal scanning frequency INF FileLow-frequency electric and magnetic fields LinearityLine frequency Low-emission monitorMoiré effect MultiSync monitorOSD On Screen Display Pin-cushion Distortion OverscanParallelogram Distortion PhosphorRefresh rate ResolutionPlug-and-Play RasterAnti-Static coatings Self-test function ShapeSOG Synchronization On Green USB or Universal Serial Bus TTL signalTilt function Trapezoid distortionDevice UPS Universal Power SupplyVideo dot rate Vertical dot pitchVertical scanning frequency Vertical sync pulsesVIS Viewable Image Size Download instructions Download and Print
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