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HELENA's hight accuracy of a hundredth of a millimetre which is achieved by a special tooling guarantees an excellent control of the lighthttps://zmi.led-professional.com/Plone/media/products_led-optics_ledil-introduces-helena-2013-family-of-new-precision-fresnel-optics_HELENAs%20hight%20accuracy%20of%20a%20hundredth%20of%20a%20millimetre%20which%20is%20achieved%20by%20a%20special%20tooling%20guarantees%20an%20excellent%20control%20of%20the%20light.jpg/viewhttps://zmi.led-professional.com/Plone/media/products_led-optics_ledil-introduces-helena-2013-family-of-new-precision-fresnel-optics_HELENAs%20hight%20accuracy%20of%20a%20hundredth%20of%20a%20millimetre%20which%20is%20achieved%20by%20a%20special%20tooling%20guarantees%20an%20excellent%20control%20of%20the%20light.jpg/@@images/image-1200-63703daccb7bac87cb89c4a86ff322b8.jpeg
HELENA's hight accuracy of a hundredth of a millimetre which is achieved by a special tooling guarantees an excellent control of the light
