Category: LED Knowledge

LED Knowledge

Gründe für den Verfall von Kompaktleuchtstofflampen

Schwärzung des Glasrohrs

Nach längerer Zündung verfärbt sich das Glasrohr schwarz und die Lichtdurchlässigkeit des Glasrohrs nimmt ab, folglich sinkt der Lichtstrom. Einige Literaturstellen haben gezeigt, dass der eigentliche Grund für die Schwärzung von Glasröhren die kleinen Tröpfchen aus metallischem Quecksilber sind, die sich im Glasnetzwerk bilden. Zweitens macht die Bildung von Natriumamalgam auf der Oberfläche der Glasröhre die Glasröhre schwarz.… Read More

LED Knowledge

Introduction to LED lights

1. LED Structure and Light-emitting Principle

The basics that semiconductor materials can generate light have been known for 50 years. The first commercial diodes were produced in 1960. The basic structure of LED is a piece of electroluminescent semiconductor material, which is placed on a lead frame, and then sealed with epoxy resin around it to protect the inner core wire.… Read More

LED Knowledge

Raisons de la dégradation des lampes fluorescentes compactes

Courte introduction

Pendant longtemps, la plupart des fabricants nationaux ont prêté attention au problème de la dégradation de la lumière et de la durée de vie des tubes fluorescents compacts à économie d’énergie. Avec la révision de la norme nationale pour les lampes fluorescentes auto-ballastées et la réduction continue du diamètre des tubes fluorescents compacts à économie d’énergie (CFL), les luminophores supportent de plus en plus de charge, il est donc particulièrement important de résoudre le problème de la décroissance lumineuse .… Read More

LED Knowledge

How to Measure LED Power Supply Correctly

Make Good Use of Every Cent of Your Budget

The ideal power supply is inexpensive, 100% efficient, and takes up no space. Power electronics engineers are accustomed to hearing from customers, and they do their best to meet those requirements, trying to design systems within the smallest space and budget.

It is no exception when it comes to LED driver design, in fact it faces greater budgetary pressures.… Read More

LED Knowledge

Måling af lumenvedligeholdelseshastighed for LED-lyskilde

Kort introduktion

Certificeringsmetode for LED-lyskilde-lumenvedligeholdelseshastighedsmåling af Lighting Engineering Association

Lysteknikforeningen godkendte offentliggørelsen af ​​udvalgets beretning. Revisionsforslaget skal være i overensstemmelse med belysningsteknisk forenings relevante bestemmelser.

Lm-80 er velegnet til emballering, array og modul baseret på uorganisk led. one   Lm-80 er designet til at guide vedligeholdelsen af ​​optisk output i stedet for nogen anden fejltilstand. Udtrykket “kilde” i dette dokument refererer kun til emballage, arrays og moduler.… Read More

LED Knowledge

High-power LED Street Light Heat Dissipation

High Power LED Street Light Heat Dissipation

In fact, LED lumens are rapidly increasing. In 2006, the number of lumens per watt of mass-produced LEDs has reached 50 lumens, and this value is still growing rapidly. The corresponding heat transfer theory system has matured, and the heat transfer methods we can use are basically clear: conduction, convection, radiation, and phase change heat transfer (such as heat pipes).… Read More

LED Knowledge

Sisävalaistussuunnittelun pääkohdat

Kolme perusperiaatetta

Monet suunnittelijat tuntevat päänsärkyä valaistussuunnittelusta, puhumattakaan sinusta ja minusta, jotka emme ymmärrä suunnittelua. Mutta kodin valaistuksella on myös muutamia helppokäyttöisiä ja edullisia sääntöjä. Vaikka se ei voi saavuttaa hotellien kauniita ja edistyksellisiä vaikutuksia yhdessä vaiheessa, se on helpoin tapa tavallisille ihmisille, kuten me.

 

Vältä häikäisyä

Tärkeintä kodin valaistuksessa on, että valot eivät koskaan saa häikäistä. Kaikki valonlähteet eivät saa altistaa lamppuja – jos se on tasainen valo, kuten kattovalaisin tai alasvalo, se on varustettava diffuusorilla.… Read More

LED Knowledge

LED Light Reliability Test Method

Overview

LED is a new concept of solid-state light source. With its unparalleled technical advantages of energy saving, environmental protection, long life and high controllability, it has become one of the most promising high-tech technologies in the world in recent years, officially kicking off the prelude to fully replace traditional lighting.

The innovation of semiconductor lighting technology is changing the century-old history of traditional lighting.… Read More

LED Knowledge

Kallljus och termisk ljuseffektivitet för LED-ljus

Fördelar med LED-ljus

Den vanligaste på marknaden är en icke-elektrolytisk kapacitiv ljusmotor vars effekteffektivitet vanligtvis bara är cirka 85 %. LED-lampan är ett elektroluminescerande halvledarmaterialchip, som härdas på fästet med silverlim eller vitt lim, och ansluter sedan chippet och kretskortet med en silvertråd eller guldtråd. Omgivningen är förseglad med epoxiharts för att skydda den inre kärntråden. Funktion, installera äntligen skalet, så LED-lampan har bra seismisk prestanda.… Read More

LED Knowledge

Several Core Design Problems in LED Lighting Power Supply

The Problem That the Electrolytic Capacitor Life Does not Match the LED

An important consideration for LED lighting is that the LED driver circuit should be able to match the working life of the LED itself. Although there are many factors that affect the reliability of the drive circuit, electrolytic capacitors have a crucial impact on the overall reliability. In order to prolong the working life of the system, it is necessary to analyze the capacitors in the application in a targeted manner and select the appropriate electrolytic capacitors.… Read More