Products
Focusing Optics
Two ways to focus the beam: dynamically figured KB mirrors, and the F-Switch compound refractive lens system.
New
F-Switch CRL1
A fast compound refractive lens system with a four-axis manipulator. Unlike a transfocator, every lens in the array can be selected on its own.
- Built under licence from Diamond Light Source.
- 120 positions in the array, each individually selectable.
- Very fine adjustment of the focal spot and focal length.
- Operates in vacuum and requires just two actuators.
- Filters or reference foils can be used in some positions in the array.
- Lenses
- 2D lenses, available from RX Optics, each mounted in a disk 2mm thick, 12mm diameter
- Manipulator
- Four-axis F-Switch Manipulator developed by Diamond Light Source: vertical, horizontal, pitch and yaw
Background: G.M.A. Duller, D.R. Hall and A. Stallwood, F-Switch paper, MEDSI 2016 (opens in a new tab).


Small KB Mirror System2
The mirror shape is figured dynamically by applying two adjustable moments to a trapezoidal mirror, giving a close approximation to the ideal focusing ellipse.
- Highly repeatable sub-µm focused spot size.
- High stability dynamically figured mirror with sub-µrad slope error.
- Mirror lengths 170mm - 320mm.
- Multiple mirror coatings (Silicon, Rhodium, Platinum).
- Ultra-high vacuum, high vacuum, low vacuum and helium variants.
- Pitch angle
- ±25mrad range, 1.07μrad resolution (320mm mirror)
- Height
- ±4mm range, 0.36μm resolution
- Translation
- 10mm, used for mirror stripe exchange


1 © Copyright Diamond Light Source Ltd, manufactured by Instrument Design Technology.
2 Developed by IDT with a grant from the North West Development Agency.
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