DF2484 datasheet(28/82 Pages) OSRAM

28 / 82 page

2.3.8 Radiation

components in

the infra-red range

Fluorescent lamps emit radiation at wavelengths which are also used for infra-red

transmissions. Since the IR receivers used for televisions, wireless headphones and

sound transmission systems, for example, are often not sufficiently selective there

may be interference in the IR system, particularly with lamps operated by electronic

control gear, if light or optical radiation from the lighting system enters the IR receiver.

The light emitted by a fluorescent lamp is essentially modulated at twice the operating

frequency (50 to 250 kHz in the case of electronic control gear and 100 or 120 Hz in

the case of conventional control gear). Interference may occur if the useful signal is

also operating in this frequency range.

Audio transmission

For further information on this topic please consult the OSRAM QUICKTRONIC® tech-

nical guides or visit www.osram.com.

IR remote control

Interference-free operation is possible with systems that work with a sufficiently high

carrier frequency (400 to 1500 kHz). If interference occurs in systems or equipment

operating at a lower carrier frequency, it is best to move the IR receiver as far as

possible away from the radiation footprint of the lamp or shield it from direct light.

For further information on this topic please consult the OSRAM QUICKTRONIC® tech-

nical guides or visit www.osram.com.

Electronic merchandise security systems

In many shops nowadays, merchandise such as CDs and clothing is protected against

theft by electronic security systems. These systems typically operate with resonances

in the kHz range. If the operating frequency is between 30 kHz and 150 kHz it may

lead to interference. Such interference can be avoided by increasing the distance bet-

ween the luminaires and the transmitting/receiving system.

For further information on this topic please consult the OSRAM QUICKTRONIC® tech-

nical guides or visit www.osram.com.

Infra-red components radiated by compact fluorescent lamps as a percentage of power

consumption:

IR-C (> 2700 nm)

IR-B (1400 - 2700 nm)

IR-A (780 - 1400 nm)

38 - 40 %

0.15 %

0.6 %

2. Lamp data

Economical long-life light sources with plug-in bases.

Compact Fluorescent Lamps OSRAM DULUX®

Technical Guide

DF2484 데이터시트(PDF) 28 Page - OSRAM GmbH

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