A561 7041 - TIR spot-focusing lens, dia 70mm

Lens A561 is our largest spot lens. High precision of molded back side as well as of polished front side guarantees maximal efficiency and high power potential. Spot lenses are used in optical systems to reach a very narrow beam angle. Lens A561 is designed for light sources with size up to 20mm. Recommended mutual position for LED and lens is given in lens drawing under files for download. Nevertheless for optimal function it is recommended to test proper position for every LED source. The beam angle of A561 in a combination with Cree XP-G, Cree XM-L and Luminus SST-90 is 3,2°, 4,8° and 7°. The smaller light source is used the narrower angle is reached. If you are looking for spot lenses with smaller diameter you can find three in our portfolio: A470, A562 and A559. You can see comparison of simulation data for all our spot lenses and various LED sources in a file: Simulation results for spot lenses and various LEDs, which can be found under files for download. To reach the lowest value of the beam angle you need to use the biggest optics and the smalles light source.