LEDs for displays

17 August 2011 Opto-Electronics

OSRAM Opto Semiconductors has expanded its TopLED Black series beyond the previously available red and yellow variants. The small LEDs in black packages are now also available in blue, green and orange with a 60° or 30° beam angle.

The LEDs are particularly suitable for monochromatic and multicolour displays, such as those in electronic road signs, travel information displays, parking control systems and price information pillars at petrol stations. The most suitable beam angle for each of these applications depends on the distance from the viewer and on local conditions. On straight roads, the LEDs with a 30° beam angle are ideal, whereas the versions with a 60° beam angle are better for the curves on entrances to and exits from highways, for petrol stations and for bus destination displays.

The completely black package of the TopLED Black series reduces reflections considerably. The LEDs also offer high contrast so that displays have good legibility in all lighting conditions. The 30° version of the green LED offers high luminance of 7 cd at an operating current of 20 mA.

As SMT components, the LEDs are suitable for automatic handling. The solder legs compatible with TopLED and Power-TopLED provide flexibility since displays can be made with different luminances and beam angles on one and the same circuit board.

For more information contact Ryan Hunt, OSRAM Opto Semiconductors, +27 (0)11 472 5264, [email protected], www.osram.co.za

Further reading:

PhotoMOS relays
Future Electronics Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.

Read more...

---

Mouser now shipping onsemi’s image sensors
TRX Electronics Opto-Electronics
The AR0145CS is a 1/4,3-inch CMOS digital image sensor with a 1280 (H) x 800 (V) active-pixel array that can capture both continuous video and single frames.

Read more...

---

Adaptive optics’ power solution
Altron Arrow Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.

Read more...

---

Ultra-high speed photo detection
Opto-Electronics
TDK Corporation has announced a photo-spintronic conversion element combining optical, electronic, and magnetic elements that can respond at an ultra-high speed of 20 picoseconds.

Read more...

---

High-speed lasers
RFiber Solutions Opto-Electronics
Macom are a high-volume manufacturer of lasers, deploying more than 100 million devices with a reliability of less than 50 FIT and greater than 100 years of wear-out lifetime

Read more...

---

High-performance optical interconnect
Opto-Electronics
STMicroelectronics has unveiled its next generation of proprietary technologies for higher-performing optical interconnect in datacentres and AI clusters.

Read more...

---

Halo mid-board optical transceiver
Spectrum Concepts Opto-Electronics
The Samtec Halo mid-board transceiver has been designed for next-generation embedded applications that require 56 and 112 Gbps PAM4 performance in low profile and ruggedised form factors.

Read more...

---

New generation of Ethernet media converters
IOT Electronics Opto-Electronics
Phoenix Contact is introducing three new families of media converters to the market, each designed for specific industrial environments and challenges.

Read more...

---

PIN photodiode with integrated lens
RFiber Solutions Opto-Electronics
The MARP-BP112 from Macom is a backside-illuminated PIN photodiode, usable from 1200 nm to 1650 nm, that is optimised for use in 112 GBaud PAM4 applications.

Read more...

---

RGBIR sensor with I2C interface
Electrocomp Opto-Electronics
Available in a miniature opaque 2,67 x 2,45 mm package, Vishay’s VEML6046X00 includes high-sensitivity photodiodes, a low noise amplifier, and a 16-bit analogue to digital converter.

Read more...

---