High-speed IR emitters generate greater brightness over wider temperature range

New Yorker Electronics has expanded its optoelectronics division with the new Vishay Optoelectronics High-Speed IR Emitters. Excellent for position tracking in virtual or augmented reality applications, these emitters assist in simplifying designs by removing the requirement for external barriers such as rubber rings. Built on the company's SurfLight surface emitter chip technology, the VSMY5850X01 (850nm), VSMY5890X01 (890nm) and VSMY5940X01 (940nm) produce 30% greater radiant intensity than previous-generation devices, over an extensive temperature range from -40C to +110C.

Unlike traditional PCB packages that employ an all-transparent epoxy to embed the emitter chip, the opaque side walls of the VSMY5850X01, VSMY5890X01 and VSMY5940X01 stop unwanted side emissions that can create a halo affect in-camera images. While standard IR emitters transmit light in all directions, these devices emit almost all light and power out of the top of the chip. Consequently, with most of the light concentrated on the surface, the emitters can deliver this superior intensity.

Also, these emitters are housed in a 2mm x 1.25mm x 0.8mm 0805 surface-mount package – claimed to be the industry’s smallest package with opaque sidewalls. They also feature fast rise and fall times of 7ns, low forward voltages down to 1.6V at 100mA and a floor life of 168 hours.