Category: LED Knowledge

LED Knowledge

Luminaires extérieurs pour terrain de basket

Avec la poursuite de la mise en œuvre de la politique nationale de remise en forme nationale et de construction d’une puissance sportive, le concept de protection de l’environnement, d’économie d’énergie et de réduction des émissions a gagné un soutien populaire, et les avantages de l’éclairage LED dans les terrains de basket sont devenus plus importants. L’éclairage de basket-ball, une partie discrète de l’industrie chinoise de fabrication d’articles de sport, l’utilise pour éclairer la lumière sans éblouir et éclairer la route intelligente de l’industrie.… Read More

LED Knowledge

LED characteristics and test methods_Part II

  1. Turn-on delay time td(on) (Turn-on delay time) and test:

The time interval between the lowest specified value of the leading edge of the input pulse and the lowest specified value of the leading edge of the output pulse. The measurement method is the same as the switching time.

  1. Rise time tr (Rise time) and test:

The time interval between the lowest specified value and the highest specified value of the leading edge of the output pulse.… Read More

LED Knowledge

Tennisbane Lighting Layout & Lighting Design

Layoutet for en standard tennisbane er ikke mindre end 36,58 meter (længde) x 18,29 meter (bredde). Denne størrelse er også nettestørrelsen på et net omkring standard tennisbanen eller den indvendige væg i en indendørs bygning. I dette område er standardstørrelsen på et effektivt dobbeltgulv: 23,77 meter (længde) x 10,97 meter (bredde), og der skal ikke være mindre end 3,66 meter åbent rum bag hver endelinje.… Read More

LED Knowledge

LED Characteristics and Test Methods_Part I

The Meaning of Limit Parameters

  1. Allowable power consumption Pm: The maximum value of the product of the positive DC voltage and the current flowing through it. If this value is exceeded, the LED will heat up and be damaged.
  2. Maximum forward direct current IFm: the maximum allowable forward direct current. Exceeding this value can damage the diode.
  3. Maximum reverse voltage VRm: the maximum allowable reverse voltage.
… Read More
LED Knowledge

Sulkapallokentän valaistus – suunnittelu, vaatimus ja sulkapallokentän korkeus

Sulkapallokentän vakiokoko ja –mitat

Sulkapallokentillä tulisi olla selkeät rajat. Kentän viivan leveys on yleensä 40 mm, kentän viivan väri on valkoinen (mieluiten), keltainen tai muu helposti erottuva väri. Kaikki tapahtumapaikan linjat ovat osa sen määrittelemää aluetta. Laaja-alaisella kuntosalilla esiintyy usein erilaisia ​​linjahäiriöitä eri paikoissa. Eri värien käyttäminen lattiaa vasten maalattaessa rajoja vaikuttaa merkittävästi sulkapallokentään.

12 metrin korkeudessa tuomioistuimen yläpuolella ja 2 metrin säteellä tuomioistuimen ympärillä ei saa olla esteitä (mukaan lukien kaksi vierekkäistä tuomioistuinta).… Read More

LED Knowledge

LED Inspection Specification

Preface

Since Edison invented the incandescent lamp in 1879, electric light source lighting has gone through more than a century. Among them, there are three important stages of development. The representative light sources are incandescent lamps, fluorescent lamps and HID (High Intensity Discharge) lamps. The incandescent lamp is easy to install and use, but it is a heat radiation source. Most of the input electric power becomes infrared radiation and a large heat loss.… Read More

LED Knowledge

The Optical Principle of LED Lighting

Primary Color (Basic Color)

Primary colors are the basic colors used to mix other colors. The primary colors have the highest color purity, the purest and the most vivid. Most colors can be blended, but other colors cannot be blended into three primary colors.

“Primary color” is not a physical concept, but a biological concept based on the physiological effect of the human eye on light.… Read More

LED Knowledge

Return on Investment of 300W LED Lights

What is ROI

ROI is the rate of return on investment, which refers to the value that should be returned through investment, that is, the economic return that an enterprise obtains from an investment activity.

Calculation formula:

Return on investment (ROI) = annual profit or average annual profit/total investment × 100% It can be seen from the formula that companies can increase the return on investment by reducing sales costs, increasing profit margins, and improving asset utilization efficiency.… Read More

LED Knowledge

Street Lights kunskapsbas – Läs mer om gatubelysning

 

Gatubelysning är det som ger belysningsfunktioner på vägar och i allmänhet hänvisar till lampor inom området för vägbelysning i trafikbelysning. Gatubelysning används ofta på olika ställen där belysning behövs. Den består av lampor, ledningar, ljuskällor, ljusstavar, ljusarmar, flänsar och inbäddade delar.

Kortfattad bakgrund

I början av 1500-talet måste belysningsarmaturer installeras utanför fönstren mot bostadsgatorna i Paris. Vid fjorton Louis uppträdde många gatubelysning på gatorna i Paris.… Read More

LED Knowledge

The Whole Process of LED Production Process

Production Process of LED Beads

  1. LED chip inspection

Microscopic inspection: Whether there are mechanical damage and pitting on the surface of the material (whether the lockhill chip size and electrode size meet the process requirements and whether the electrode pattern is complete

  1. LED expansion

Since the LED chips are still arranged tightly and with a small pitch (about 0.1mm) after dicing, it is not conducive to the operation of the subsequent process.… Read More