Af hverju flöktir LED rör ljósið?
As modern energy-efficient lighting technologies proliferate in our environment, so does awareness of their impact on biology and even technology. The rapid development and assimilation of LED lighting, often without clear standards, may lead to lighting flickering and adversely affect it. Many organisations and industry professionals across disciplines, including international standards bodies and regulators, are working to measure, understand and appropriately manage flicker.
1. Af hverju flöktir LED ljósgjafinn?
1. LED ljósgjafar eru önnur saga. Byggt á hálfleiðurum, bregðast þeir fljótt við aflbreytingum, en algengt raforkukerfi og reklar geta framkallað óhóflega flökt.
2. Flicker hefur verið til síðan uppgötvun AC (riðstraums) ljósgjafa. Breyting á aflgjafafasa veldur samsvarandi hröðum reglubundnum breytingum á ljósgeisluninni sem gefur frá sér og birtustyrk eða birtu sem af því hlýst. Hefðbundin glóperuljósakerfi verða fyrir áhrifum, en ekki verulega, vegna þess að þráðurinn bregst tiltölulega seint við breytingum á krafti. Aðrir ljósgjafar, eins og flúrperur eða aðrir útblásturslampar, hafa hraðan viðbragðstíma, þannig að breytingarnar eru meira áberandi fyrir áhorfandann.
2. Hvaða áhrif hefur flökt á okkur?
1. Flicker affects workplace safety and productivity, comfortable living spaces, and according to recent research, our overall health and emotional well-being. For example, from a safety point of view, a fast rotating element present in the operator's field of view does not appear to be moving very fast, or stop due to excessive flickering. From a photobiological point of view, prolonged exposure to excessive flicker leads to neurological problems such as headaches, migraines, and even epilepsy.
2. Frá tæknilegu sjónarmiði getur flökt haft mikil áhrif á lýsingu fyrir stafræna myndatöku, sérstaklega í sjónvarpsstofum og íþróttastöðum. Strangar útsendingarkröfur krefjast notkunar á viðeigandi aflgjafakerfi til að forðast myndavélarmyndir, sérstaklega stroboscopic áhrif við hæga spilun meðan á háhraðatöku stendur.
3. Hvernig á að takmarka flökt?
1. Í LED ljósgjöfum er hægt að minnka flökt með réttri hönnun og aflgjafasíu, til dæmis með því að nota fleiri þétta. Að öðrum kosti er hægt að nota hátíðnispennubreytir. Með LED dimmerum er hægt að stilla ljósstyrk á ýmsa vegu. Að breyta úr púlsbreiddarmótun yfir í núverandi stjórnun, eins og sumir LCD-skjáir gera, dregur einnig úr flökti.
2. Manufacturers use several different technical solutions to limit flicker. However, what is technically possible does not always translate into a perfect finished product. Changes in power system design can increase size and cost - not always an option for manufacturers. The result is a product on the market with flicker characteristics that don't match the customer's or designer's expectations. A device defined as having minimal flicker can actually be driven by high frequencies invisible to the human eye, not even a TV camera. Without proper measurements and standards, claims like "flicker free" can be more advertised than quantified properties.
Flicker is an old phenomenon that needs new consideration in the age of LED lighting. The industry has made progress in quantifying flicker and its measurement. Numerous industries and global standards organizations are in urgent need of further understanding and quantification of how flicker affects humans and other biological forms in multiple ways. In the meantime, progressive instrument makers such as GL Optic have developed methods to quantify certain flicker properties precisely and reproducibly. There is no doubt that the light is burning with positive outcomes for all when it comes to the future of addressing flickering.
Benwei LED Tube ljós án flökts, getur verndað augu, ef þú hefur einhverjar fyrirspurnir, vinsamlegast hafðu samband við okkur.
Póstur okkar: wendy@benweilighting.com
