LED will become brighter and brighter

For most components, people are seeking to make it the smallest component on the market or consume the least power. For LED, however, people are trying to make it the brightest component. Currently, LED is required to perform more functions than the function indicator and alarm indicator. LED can be used to replace incandescent and fluorescent devices, as well as headlights and signal lights, but also to deal with the work of the backlight stray. So, the brighter the better.

It is especially important to design and produce products that require a different angle and to be read in a high brightness environment, such as direct sunlight. With a brighter LED, the same task is done, without a lot of LED, so the design is more compact, lower cost. Of course, to complete this work, there are a variety of options.

bright

LEDtronics provides light green and red green blue (RGB) LED, is expected to pass through the strongest sunlight. LD200-0AG-15D is an independent 5mm standard dome light green LED, rely on InGaN using fiber grade epoxy resin (InGaN) diode, producing 28000 MCD in the 20mA drive current under illumination, even in direct sunlight is also clearly visible.

Provide 15 degrees narrow viewing angle LD200-0AG-15D rely on high transparency of lens, this view may be very ideal for a wide variety of applications, for example, a single pixel, a large dot array display screen full color display, mobile marker, display, mini lamp, standard bulb, theater stage lighting decoration, button switch, telecommunications systems, medical equipment, lighting and backlighting.

Keep clear visibility in bright sunlight and has a full spectrum of RGB illumination at the same time, LEDtronics RGB-1007- 001 dimensions four legs, inserted through hole LED shows small size of 4.9 mm * 6.5 mm, from the angle of 120 degrees wider. According to the color difference, when the working current is between 20 mA ~ 25 mA, the luminous intensity is from 230 MCD to ~ 750 mcd. Individual red, green and blue LEDs operate at 635 nm, 520 nm and 470 nm wavelength, respectively. Overall, the average life expectancy of more than 100 thousand hours, which is nearly 11 years.

More bright

CREE uses the popular XLamp XR-E production line to provide green and blue LED, much better than the previous generation of its family of products. The latest green XLamp LED XRE is 70% higher than the previous green power LED of the company, with a maximum luminous flux of up to 87.5 lumens (drive current of 350mA).

This progress is based on XR-E blue power LED brightness enhancement, this LED is also brighter than the previous generation of products 70%. The blue element also operates at 350mA drive current, which provides a maximum luminous flux of 42 lumens. Using these two improvements can be used to design a LED system that uses a small amount of efficiency and cost effectiveness.

The brightest

OSRAM light semiconductor has developed what is called the world's brightest monolithic surface mount LED. The ultra bright device, which is known as the "Diamond dragon", can reach 250 lumens (see chart), including indoor and outdoor lighting, automotive headlights and signal lighting.

The LED surface mount package uses silicone lens, which provides a low thermal resistance of 2.5 K/W, with a maximum junction temperature of about 175 C. The two regulations make the device available for cooling LED is not very easy to apply, such as small spotlights (lamp renovation) and embedded lights.

The LED is capable of withstanding high drive current without the risk of damage, with a typical current of 1.4 A and a maximum current of A. Typical life span is 50000 hours. In addition, the single chip device using the company's ThinGaN chip technology and chip level conversion, the input power of 5 W to ~ 8 W.

Color temperature range of 2700K ~ 6500K white diamond dragon will be available in January, all standard monochrome will also be available. In terms of product life, its shape backwards compatible with the company's previous generations of devices to ensure that the current Huang Jinlong (Golden Dragon) and (Platinum Dragon) users can easily upgrade.

Author: Mat Dirjish

Package / Photo Editor

"ELectronic Design"

Source: electronic system design