NEWS 5 July 2021

A tuneable resonant scanning mirror

Scanning mirrors are widely used in optical systems to direct reflected light. Hittech Group, a first-tier system supplier in mechatronics and optomechatronics, carries out research on laser scanning. Existing products...

Julie van Stiphout - Sassen

Scanning mirrors are widely used in optical systems to direct reflected light. Hittech Group, a first-tier system supplier in mechatronics and optomechatronics, carries out research on laser scanning. Existing products such as galvanometers and resonant scanners are intended for accurate positioning at a low-frequency range and for fast scanning at a specified high frequency, respectively. However, when a wide frequency range is involved, these devices may not be able to fulfil the requirements. In the project described in this Mikroniek article, a novel solution was proposed, by tuning the resonant frequency of a scanning mirror and exciting higher-order modes to cover a wide frequency range of 500 Hz to 5 kHz. A test set-up has been developed, of which the results demonstrate that this frequency range can be covered, with a scanning angle range of 1 mrad for the reflected beam.


References

Mikroniek: Large dynamic range atomic…

The second part of the Optics Week, on 1-3 October 2019, was filled with the Optomechanical system design course.

Read more
Meet DSPE at the PRECISION…

The Precision Fair has been the most important annual meeting point for precision technology professionals for the last 20 years. There’s a large need to bring the network back together by the...

Read more
Mikroniek April 2019: Thermal control

The April issue of Mikroniek features the theme of thermal control. Today, thermomechanics is crucial for successfully designing precision systems, especially optical systems – DSPE runs a Special Interest Group...

Read more