LED

In the past, perhaps few would have predicted that LEDs in watch displays would be the lighting technology of the future. But it has happened and LEDs are now being used for general lighting purposes. Could OLEDs or laser diodes replace LED technology? And what about light-emitting plants?

Blue light alone does not have a whitening effect. The purpose of the blue light is to speed up the teeth whitening process. It should be used with a bleaching solution. The combination of chemical and blue light significantly increases the final whiteness level of the teeth.

LED lighting devices experience significant energy loss during AC-DC power conversion, electro-optical conversion (electroluminescence), and wavelength conversion. Unlike conventional technologies, in LEDs, all energy losses in the light emitting process are expelled as heat. This presents a major engineering challenge where more than half of the power input is converted...

The most common causes of LED failures are the use of poor quality LEDs, improper soldering of the LEDs, exposure to high temperatures, insufficient heatsink design, no current limitation in the power supply circuit, and problems with the battery.

The source that provides the power required to operate an LED or LED array is called an LED driver. Constant current power supplies are used to prevent the LEDs from failing by drawing too much current. The constant current LED driver is designed to deliver a constant output current within...

Light bulbs are generally rated in two different classes, warm white and cool white. Generally, warm white indicates 2700-3000K color temperature range, while cool white represents 6000K-6500K color temperature. Which one should we choose for our houses?

There are two different methods for producing white light with LEDs. The first of these is the RGB method and the other is the phosphor method. The most commonly used option in the lighting industry is the phosphor method. In the phosphor method, a blue LED chip is coated with...

Although LEDs have an unrivaled light output compared to conventional lighting technologies, they still face the challenge of efficiency. The highest efficiency LEDs currently available on the market convert only 60 percent of the electrical power into light. The rest of the energy is released as heat. When excess heat...

The compact high-power LED Osconiq C 2424 from Osram Opto Semiconductors offers a broad color temperature range from cool to warm white and various CRIs, enabling a large variety of different luminaire designs. In addition, it is the only CSP LED with an integrated ESD available in the market, that...

UV-C light can eliminate 99.9 percent of viruses and bacteria on surfaces, in the air and in drinking water. As one of the world's leading manufacturers, Osram Opto Semiconductors now enables particularly small and robust disinfection applications with its LEDs, while also driving the industrialization of these special light sources...

After Philips and GE, Cree has also announced its permanent parting with LED and the lighting industry. Cree announced on October 20th that the company has reached a final agreement with SMART Global Holdings, Inc., and plans to sell its LED department (Cree LED) to SMART for US$300 million.

University of Michigan researchers have shown that by including the boron element in the InGaN layer in LEDs, it can reduce electron collisions and increase the light efficiency of LEDs. 72 percent of the world's boron reserves in Turkey, would be a new hope for the lighting industry?

There are many details and features that affect your decision when choosing a LED strip light. Color, light intensity and length are the first to come to mind. An important property that is often neglected is voltage. 12V and 24V LED strip lights are widely available in the market. So...

LED light sources are quite popular compared to traditional incandescent lamps. Because it consumes less energy and can work about 25 times longer. SMD LEDs and COB LEDs are commonly used in the lighting industry. So what are the differences between the two models?

OLED (Organic LED) is solid state lighting (SSL) technology like LED. OLED is made of carbon-based thin organic layers that are compressed between two electrodes. LEDs are made of different types of heavy metals (arsenic, gallium, indium).

The Biomass Production Laboratory at McGill University, is doing research in urban agriculture. Recent innovations with LED as a plant energy source, has brought about this new area of research. Compared to conventional lighting techniques when growing tomatoes, an arrangement of red and blue lights has proven to increase growth, improve...

Due to the Coronavirus outbreak in Wuhan, the Chinese Central Government extended the new year holiday until February 3, 2020. Local governments also take measures against the Coronavirus to the extreme. Production at the factories was stopped until February 10, 2020, and this period can be extended.

The Texas Eastern District federal court issued a permanent injunction against the sales of several TV and lighting products, including a Philips TV product, as well as light bulbs of Feit Electric, according to a stipulation made between Seoul and Fry’s.

According to recent research, LED light sources with a spectrum close to natural sunlight produced better visual comfort, more alertness, and happier moods in the morning and evening among the test participants, compared to those exposed to conventional spectrum LEDs.

The standard high-brightness LED merely converts about 45% of energy, while the rest 55% is given out as mere heat. Now, it is important to quickly remove heat from the LED in order to prevent overheating of the LEDs. This is known as thermal management that has been challenging the manufacturers...