News

From now on, we are offering an upgrade for the Power Shutter on our HKZ systems to both existing customers and new buyers.

Our new UniRad Power Shutter upgrade offers an advanced alternative to the already highly capable standard HKZ shutter system by providing highly uniform irradiation distribution at all power shutter openings. The existing design has long set a benchmark in its class, delivering significantly more uniform irradiation than conventional configurations. Building on this strong foundation, the UniRad Power Shutter introduces a refined mechanical concept that further enhances radial power homogeneity, especially at small opening ratios.

At the core of the UniRad Power Shutter is a shutter mechanism composed of four independent units, each consisting of two perforated segments arranged in a stacked configuration. As the shutter opens, the units move apart and release a narrow, cross shaped section of the light cone onto the sample. Simultaneously, the overlapping perforated segments shift relative to one another, gradually aligning their hole patterns so that additional portions of the light beam pass through. This dual stage opening action increases the irradiation intensity in the horizontal plane of the shutter and thus on the sample in a smooth, finely controlled, and exceptionally uniform manner.

Where the standard design already outperforms traditional systems, the UniRad Power Shutter pushes uniformity even further. By ensuring that the circumferential light contribution remains well balanced at every shutter position, the system maintains a stable and homogeneous, thus variable temperature field for a wide range of materials (from low to extremely high melting temperatures) without requiring a lamp change. The UniRad Power Shutter therefore represents a powerful evolution of the already existing design, offering users an attractive upgrade path for even greater process stability and growth performance.

If you would like to receive more information about the upgrade or make an order, please feel free to contact us.