News Article

Everlight IRLEDs Power Remote Controls And Touch Panels

The 8.0 mW/sr@20 mA version can match or exceed 5mm IR diodes. This allows extended battery lifetime of handheld devices, or increased panel sizes
Everlight Electronics, a player in the global LED industry with three decades of experience in optoelectronics, has expanded its line of ‘invisible’ light sources.

The two new Surface Mount (SMD) infrared LEDs (IRLEDs), the IR26-71C and the IR26-61C, are suited for use in remote control applications.

The two IR26-71C models are 940 nm side-view devices that feature superior mechanical (height) and optical (radiant intensity and viewing angle) characteristics which make them ideal for use in remote controls as well as touch panels.

Remote control in operation with IR26-71C LED module (inset)

A height of just 1.2 mm allows the target devices to be as slim as possible, even when implemented into portables like mobile phones and tablets. With a radiant intensity of 5 mW/sr and 8 mW/sr or more at 20mA, they are claimed to outperform most SMD IRLEDs on the market.

The 8.0 mW/sr@20 mA version can match or exceed 5mm IR diodes. This allows either lower driving currents, to extend the battery lifetime of handheld devices, or increased panel sizes which lengthens the transmission distance of remote controls. A viewing angle of 50° ensures that the remote control does not need to be directly pointed towards the receiving device, but instead works in a wide operating range.

Based on a similar package design, Everlight is offering the IR26-61C IRLED series with a narrower viewing angle of 20° and the PT26-71B phototransistor series. These are both matching pairs designated for small-middle (5 - 32") size optical touch panel applications. Due to the same low height of 1.2 mm, the slit for the touch panel’s optical frame can be kept very small, thus allowing the device to be slimmer and have a higher quality appearance.

Samples are available upon request and are now in mass production.

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