Beam Shaping for Controlled Field of View

Today’s machine vision systems, including LiDAR, Object Recognition, Augmented and Virtual Reality, Motion and Gesture Tracking, rely on a strong light source such as a vertical cavity surface emitting laser (VCSEL) coupled with a time of flight (ToF) camera to reproduce a 3D map of the surrounding environment. In 3D sensing applications, IR VCSELs are typically used to provide a bright illumination source, but often emit a narrow beam. Alone, the VCSEL source would only illuminate a small area, and not be of much use. The beam must be broadened, steered, and shaped in a highly controlled way to illuminate a specific field of view. BrightView’s micro lens array optics are well suited to work with VCSEL sources and create the desired field of view. 

  • Controlled uniformity 
  • Efficiency of light – fully utilize your light source
  • Custom beam shapes and angles
  • Functionality in a single film – two sided films are more cost effective


Top Hat Product Note


LiDAR Product Note


How to choose a BrightView MLA optic for your 3D Sensing Application

BrightView’s micro lens array optics can create a variety of beam shapes and angle bends. They are specifically designed to meet the requirements of the time-of-flight VCSEL applications, including low zero order emission, compatibility with high peak laser power and uniformity. Things to consider are:

  • Field of view
  • Lens substrate – BrightView offers PET, polycarbonate, and glass substrates, contact us for more options
  • Beam shape – rectangular top hat, circular, and square shapes are available. 

Our optics experts are available to help you uncover the right size and shape, as well as guide you through the design process quickly and cost effectively. 

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