Opto-Electronics


IR emitters for industrial mass market 2D/3D sensing

26 February 2021 Opto-Electronics

ams has introduced a family of infrared VCSEL (Vertical-Cavity Surface-Emitting Laser) flood illuminators which help industrial manufacturers to develop new and innovative applications for robots, cobots, autonomous guided vehicles, and smart devices which perform 2D and 3D optical sensing.

With everything including VCSEL and diffuser managed in-house by ams for tight quality control and supply chain management on key components, the new EGA2000 flood illuminators provide a uniform, tightly controlled and high-output power illumination. This is essential for evolving applications using ranging, object detection or face recognition, which use 2D, and even the more sophisticated 3D sensing techniques based on Time-of-Flight (ToF) or Stereo Vision (SV).

The implementation of 3D sensing was pioneered in mobile phones, where it is used for secure face recognition. It is now emerging in the industrial mass market as a successful technique for applications such as object dimension detection in robotics; 3D mapping of the environment supporting the operation of autonomous guided vehicles (AGVs), including automatic vacuum cleaners and lawnmowers; face recognition in industrial systems such as e-payment kiosks and smart locks; and night vision cameras.

The superior optical performance of the EGA2000 devices is a feature of the integrated ams IR (infrared) emitter architecture. Matching the micro-optics to suit the characteristics of the VCSEL emitter, the illuminators produce a uniform beam which has a homogeneous rectangular profile. This tightly controlled illumination profile and Field of Illumination (FoI) match the field of view of the IR image sensors used in 2D and 3D ranging and detection systems, thus increasing the strength and integrity of the reflected optical signal.

Range of product options

The EGA2000 family of illuminators offers two wavelength options:

• 850 nm; for systems requiring maximum sensitivity.

• 940 nm; for easier compliance with eye safety regulations; superior rejection of sunlight interference also makes the 940 nm; illuminators suitable for use outdoors.

Each wavelength option is also available in one of three beam configurations:

• Ultra-wide FoI – ideal for obstacle avoidance in robotics, and for people-counting applications.

• Wide FoI – used in machine vision systems such as volume measurement in logistics systems.

• Narrow FoI – for use cases such as contour measurements and allowing long-range measurement.

For more information contact Future Electronics, +27 21 421 8292, marian.ledgerwood@futureelectronics.com, www.futureelectronics.com


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