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PRODUCT NAMING PRINCIPLES

GLOSSARY OF LED COMPONENT TERMS

Below is a list of definitions of various types of technologies used in optoelectronic industry, the components they are made of and other useful definitions you may come across when browsing this website or other sources on LED industrial .

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LED KNOWLEDGE

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How are white LEDs created?

Answer

There are currently two ways to make white light with LEDs. One method mixes multiple wavelengths of different LEDs to make white light (i.e. RGB); allowing the lighting designer to tune the white light to a specific color temperature.

The second method uses a blue Indium-Gallium-Nitride (InGaN) LED with a phosphor coating to create white light. This is the method that results in the more commonly seen “white LED”.

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High Color Rendering Index (CRI)

Answer

Color Rendering Index or CRI is the calculated rendered color of an object. The higher the CRI (based upon a 0-100 scale), the more natural the colors appear.

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What is LED?

Answer

A lighting-emitting diode (LED) is a semiconductor device that emits incoherent narrow-spectrum light when electrically biased in the forward direction of p-n junction. The color of the emitted light depends on the composition and condition of the semiconducting material used, and can be infrared, visible, or near-ultraviolet.

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What is High Power LED?

Answer

High Power LED refers to a type of LED with a driving current of 350mA and above.

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What is Bin Ranks?

Answer

LEDs are sorted into different bins (groups) based on their wavelength, photometric luminous flux, or radiometric power data. Bin ranks describe the specifications of the given bins.

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What is forward voltage (Vf)?

Answer

Forward voltage (Vf) is the voltage across a diode for a given forward current.

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What is Lumens?

Answer

Lumens in an international unit that refers to the amount of light that a light source produces. For example, a 60 Watt incandescent lamp provides about 800 lumens. A 1 Watt LED provides 85 lumens and up.

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What is phosphor?

Answer

Phosphor is an inorganic chemical compound processed into a powder and deposited inside the dome of an LED packaging. Phosphors are designed to convert the wavelength of light. Foryard Optoelectronics LEDs use proprietary phosphors from the global leading company.

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What is junction temperature?

Answer

A p-n junction is formed by combing N-type and P-type semiconductors together in a very close contact. The term junction refers to the region where the two types of semiconductor meet. The junction temperature refers to the temperature measured at p-n junction, which is also the core of an LED.

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What is emission angle (2θ?)?

Answer

The emission angle refers to as the 2θ½ indicates how focused the light is when emitted from the LED. This angle is determined by measuring the angle from direct on-axis to the angle where light intensity falls to half of the on-axis 9 intensity, and multiplying this difference by 2. The choice of viewing angle also affects the LED output intensity. Foryard Optoelectronics LEDs are available in various emission angles.

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LED USE PROCESS

The use of 660mm-730nm-780nm light will promote plant growth. 730nm-760nm can be used as a medical product to check whether a patient is in a vegetative state. 760nm-790nm-805nm is used medically to detect fat content. 850nm-880nm is used to measure engine speed. 900nm is mainly used as an inspection instrument to detect human blood gas and blood glucose. 940mm is mainly used as remote control for position locking. The 1000nm-1300nm-1500nm-1550nm detection instrument is mainly used to detect volatile gases such as human alcohol/fiber/carbon monoxide/carbon dioxide.
The UAE’s ban of stopping sale inefficient lamps will take effect on 1st July. This action is expected to save 181.80 millions of USD energy costs each year; this ban is a part of the United Arab Emirates indoor lighting standards, main aim to lock-inefficient incandescent light. The new standard will be based on environmental, safety and efficiency indicators. Also mercury limitation is a part of the standard; any lights, including compact fluorescent lamps or LED lights once exceed the limitation will not get into the country. The ban will specifically target the UAE import products which are no domestic production; it is expected to reduce 940,000 tons of carbon dioxide emissions – that equivalent of 165,000 cars emissions. So this ban is good news for new light source, because the UAE citizens need to change the inefficient incandescent light to CFLs (Compact Fluorescent Lamps), Light Emitting Diodes (LEDs) and halogens.
The Tetris was widely circulated game last century, for it so classic that it still has many fans. There is an avid fan in Russia that produced the game in a T-shirt. Last month was the 30th anniversary of Tetris, a man named Marc Kerger developed a T-shirt with 128 LED lights and 4pcs AA batteries which can play Tetris. It is not difficult to produce such a T-shirt for vendors, but the idea is very innovative. In fact, we can consider T-shirt into a wearable device, may be this idea will become enlightenment to open a new wearable devices market. Of course, we would like to see more such creative and funny ideas in the future.
LED fan clock with USB was born with there need a fan for computer players in such hot weather, moreover, also need to have a stylish clock to note the time, This called LED Fan Clock powered by USB interface, it can match with desktop and notebook computers very well, the flexible blades provide breeze, and the high-speed rotation will not hurt the user. Different with other fans, there mounted 9 green LED and 8 red LED in fan blades, it can display time through the blinking LED. Currently this clock fan has landed U.S. Amazon store, retail price of $ 12.99, free shipping in the United States.
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SERVICE SUPPORT

We believe our customers are our partners, and strive to provide them with the best quality LED related products and service. Established on this belief, Foryard has grown  from a handful of employees  to over 600 online operators on highly automated production lines and 50 knowledgeable engineering staff members in R&D department. Now, our products are exported to every continental in the world. We also established a strategically network of sales channels throughout the world for expediting product delivery and better customer service.

 

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