Optical system layouts

Realizing smallest structures

The world's smallest grating type spectrometer was made possible through the integration of the unique optical design technologies developed by Hamamatsu Photonics and the MOEMS technology (MOEMS = Micro-Opto-Electro-Mechanical Systems) that achieves high quality in mass production. In a grating type spectrometer, the positional relationship is important between the slit passing the light in, the grating separating the light into each wavelength, and the sensor.
However, the process of micromachining gratings was approaching its limits using the previous structure for minimizing the number of reflections in order to achieve the needed accuracy. To overcome this limitation, the SMD series was developed with a completely new approach.
Ultra-miniaturization was accomplished by employing optics using multiplex reflection that utilizes MOEMS technologies such as replication technology that replicates submicron-level shapes through nanoimprints and high-added-value CMOS sensor technology that integrates a slit and mirror. In addition, the latest high-sensitivity image sensor has successfully increased the sensitivity even further. ▪ ds

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SENSOR+TEST 2019

Hall 1, Booth 312

Nuremberg, June 25-27

Laser – World of Photonics 2019

Hall A2, Booth 303

Munich, June 24-27

More Productivity for Micromachining and 3D Printing

Laser technology manufacturer SCANLAB is extending its premium-segment product family with the excelliSCAN 20. This new scan system targets exceptionally demanding applications such as micromachining and additive manufacturing (3D printing). The excelliSCAN family’s well-known advantages – smart servo control technology, a universal tuning and optimized cooling – will be supplemented via the new scanner with its larger 20-millimeter aperture.

The diverse demands of customers and applications are stretching laser processing’s technological boundaries ever further. In 3D printing, key criteria include performance and dynamics – i.e. maximally efficient processes with high throughput. And the micromachining field is expanding its application spectrum from classic drilling and structuring of large-area components all the way to functionalizing surfaces. The new excelliSCAN 20 scan system possesses all excelliSCAN product family advantages: Innovative SCANahead servo control technology enables extra speed and precision. Improved thermal management permits higher long-term stability, even under high and varying loads. And digital encoder technology guarantees maximum positioning accuracy.
For 3D printing users, this larger-apertured system features a high-performance scan head with fast acceleration for exceptionally short acceleration periods. The notably higher dynamics raise productivity by shortening non-productive idle times, like jumps or changes of direction. And for micromachining scenarios such as OLED display fabrication, the 20-millimeter aperture permits processing of larger working fields at the same spot size as smaller-apertured scan systems. ▪ ds

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Laser – World of Photonics 2019

Hall A2, Booth 225

Munich, June 24-27