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Cree XLamp CXA2 Efficient LEDs

24.03.2016

LED specialist Cree has unveiled the Cree XLamp CXB1310 and XLamp CXB1520 high-density LED arrays.

The new products are built on the proprietary SC5 Technology Platform and provide record luminous flux in their classes: XLamp CXB1310 - among LEDs with a light-emitting surface with a diameter of 6 mm, XLamp CXB1520 - among LEDs with a light-emitting surface with a diameter of 9 mm. What's more, the CXB1520 is the first LED with a light emitting surface of 9mm in diameter, delivering a luminous flux of over 6000lm.

According to the manufacturer, this is comparable to seven 60 W incandescent lamps. The luminous flux of the CXB1310 reaches 3200 lm.

A large luminous flux, coupled with a small light-emitting surface area, makes it possible to manufacture lighting devices that compare favorably with existing ones in smaller sizes, cost, and power consumption.

The new LEDs are available in color temperatures from 2700K to 6500K and a color rendering index (CRI) of 70, 80 and 90. They are identical in form factor to the CXA LEDs.

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Random news from the Archive

A crystal has been created that refracts light better than all substances 02.07.2018

A team of scientists and engineers led by the University of Wisconsin-Madison and the University of Southern California (USA) has created a crystal that has a higher degree of optical anisotropy than all other solids on Earth, especially for infrared light.

To better understand what optical anisotropy is, place a piece of transparent Icelandic spar (a mineral, a type of calcite) over an image, and you will see that the image is doubled. This is due to a phenomenon called double refraction. In this property, optical anisotropy is manifested - the difference in the optical properties of the medium depending on the direction of propagation of light in it, as well as on the polarization of this light. Light waves in the same beam passing through a material with optical anisotropy will be slowed down more or less depending on the polarization - a measure of the direction in which the light waves vibrate. The human eye cannot detect polarization, but the ability to change the vibrational orientation of light is essential for LCD screens, 3D movies, lasers, and filters for camera and video camera lenses. Most devices that change the polarization of light are based on materials with optical anisotropy.

A mineral such as Icelandic spar has a well-pronounced birefringence, however, in a new crystal created by American scientists, this property manifests itself much better. And much better than any other substance on Earth - about 50-100 times, for the infrared range. This impressive ability comes from the unique molecular structure of the crystal, which consists of long chains of atoms arranged in parallel rows. Using advanced computational techniques, the researchers selected a number of necessary atoms, grew them in the lab, and studied them carefully.

The new material has a high potential due to its properties. It can be useful in energy saving photovoltaic cells or light emitting diodes. In the future, the scientists plan to explore other properties of the new crystal, and they are also working on developing strategies for synthesizing the material in large quantities.

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