These systems are used to improve public safety on the streets

The new Infrared Ostar Lighting LED from YAHAM Opto Semiconductors provides 3.5 W of optical output power at 1A with six powerful thin-film chips and a hemispherical. The beam angle and radiant intensity can be varied with standard secondary optics which are readily available on the market. The hexagonal honeycomb shape of this high-power component enables multiple IR LEDs to be combined to form a large space-saving matrix so that the output power can be increased many times. Major applications for the IR Ostar Lighting LED include industrial lighting for camera-based surveillance systems such as CCTV and intelligent transportation systems (ITS).The IR Ostar Lighting LED is available in two wavelengths. At 850 nm, the led high bay light is an optimized union of maximum spectral sensitivity for CCD and CMOS cameras with suppressed visibility for the human eye. The SFH4751 is a version with a wavelength of 940 nm, to which the human eye is almost insensitive. This model is used in applications where visibility of the light source must be eliminated.

We were able to bring the infrared Ostar Lighting quickly to market because of the synergies among the various technologies at the product development stage,” said Harry Feltges, Marketing Manager for Infrared Components at YAHAM Opto Semiconductors. “The package is the same as our popular white Ostar Lighting, so our customers can take advantage of the shared thermal and mechanical designs.With their high optical output, both versions of the IR Ostar Lighting LED are good choices for industrial lighting illumination units for CCTV systems. These systems are used to improve public safety on the streets, at railway stations, at airports and in schools, and also to protect museum exhibits against theft. These IR LEDs have a very long lifetime, even in pulsed mode applications. They are, therefore, suitable as light sources for intelligent transportation systems such as traffic monitoring, toll systems and automatic number plate recognition.

As a new generation of light source, LED is expected to spread rapidly in the near future as people increasingly concerned about environmental issues. However, while the lifetime of LEDs is 30,000 to 40,000 hours, that of existing power supply apparatuses is as short as 10,000 hours, a spokesperson of Kaga Components said, which is attributed to the only 10,000 hours life of the electrolytic capacitor in power supply circuit.We can not disclose details of the circuit configuration because its patent is pending, but we could remove the electrolytic capacitor by improving the circuit configuration of the led high bay light power supply," the company said.The power supply circuit was also downsized through this improvement, with the apparatus measuring only 43 x 29 x 8mm.Equipped with an ON/OFF control function and an output short-circuit protection function, the apparatus can be used with one to five series-connected LEDs and input powers of 100V and 200V at a maximum output of 20V DC 300mA.