28 October 2021
ams OSRAM of Premstaetten, Austria has expanded its portfolio of horticulture LEDs with the Oslon Square Batwing. The Oslon Square family is now extended with four new devices – hyper red (660nm), deep blue (450nm), far red (730nm) and horti white – spanning all necessary wavelengths for horticulture applications.
Every plant needs a certain amount of light in different wavelengths for an optimal growth. Special luminaires in greenhouses and indoor farms combine red, blue and white LEDs, depending on the light recipe required for the plant. Current LED fixtures often have a lambertian primary lens and no secondary optic, or a simple glass cover, which lead to hotspots with high concentration of light directly under the luminaire. The result is areas with different intensities of illumination, causing inconsistent yields. Currently, these lighting gaps are commonly filled with additional fixtures. ams OSRAM says that it has solved this problem with the Oslon Square Batwing, which has a special shape of optics to enable customers to simplify their designs, likely reduce fixtures or be more efficient.
When it comes to horticulture lighting growers often face light uniformity issues with the pitch-to-distance ratio. Growers currently try to close the lighting gaps with a higher number of luminaires or accept that some plants receive more light than others. This is not a satisfying solution because the main aim for the grower is to get the highest possible yield at the lowest possible cost. To address this issue, ams OSRAM combined its established Oslon Square LED for horticulture lighting with a new primary optic.
Picture: The hyper red version of ams OSRAM’s new Oslon Square Batwing LEDs.
The new batwing optics enables a special radiation pattern of light that looks like wings. The wide beam angle of 140° and the rectangular shape of light distribution enables higher uniformity and optimum utilization of space in greenhouses. The wider angle also allows for a larger distance between the luminaires and hence possibly a reduction in the number of fixtures. Compared with lighting systems using LEDs with a secondary batwing optics, the primary batwing lens solution can offer an up to 5% higher system efficiency, it is reckoned.
All versions of the new Oslon Square Batwing family feature a compact footprint of only 3.0mm x 3.0mm and have high radiant flux maintenance and a lifetime of more than 102,000 hrs. In addition, the hyper red version achieves optical output of 1042mW at a drive current of 700mA, yielding a wall-plug efficiency (WPE) of 74%.