Diffractive Optical Elements Made of Plastic

Plastic DOEs are used in particular in systems of mass production.

If diffractive optical elements are used at low and medium laser power, then plastic ele­ments may be sufficient instead of using fused silica elements. LASER COMPONENTS offers Holo/ORs plastic DOEs in different materials: polycarbonate, PMMA, Zeonex, and Zoner. They are produced in large quantities using an injection molding process.


Plastic DOEs are used in particular in systems of mass production. For the most part, customers have optics made that feature their required specifications. Holo/OR offers inexpensive tooling and low production costs. Multi-spot DOEs and homogenizers are currently available as standard elements for the wavelengths 850 nm and 532 nm.

To evaluate new elements, Holo/OR uses software it developed on its own. For this reason, customers will be able to obtain a data file of the DOEs in the quotation phase. This file can then be integrated into their own software (Zemax or Lighttrans) for further simulations.

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SCHUNK's New Safety Gripping System EGN

SCHUNK's New Safety Gripping System EGN

With the SLS, SOS, and STO functionalities, the SCHUNK EGN gripping system certified in accordance with DIN EN ISO 13849 enables safe human/machine collaboration. If the production process is interrupted by an emergency shut-off, the SCHUNK EGN goes into either a safely limited speed mode or a safe stop mode depending on the activated protection zone. In contrast to other solutions available on the market, the SCHUNK safety gripping system is continuously powered even in the safe operating stop so that the gripped parts are reliably held even without mechanical maintenance of gripping force. As soon as the protection zone is released, the gripper immediately switches back to the regular operating mode without the system having to be restarted.