Field Steering ASLM

Case ID:

Researchers at the University of Arizona have developed an apparatus and means of using Texas Instruments DLP® Digital Micromirror Devices (DMDs) in more than a binary manner. The novel apparatus and means produces a spatial light modulator that also acts as an angular light modulator. One set of embodiments allows an entire field of an image to be steered for illumination or detection.


The Digital Micromirror Device (DMD) is a type of Spatial Light Modulator (SLM) composed of an array of micromirrors. Each mirror, acting as a pixel in a display, is a binary switch rotating between two states located at +12 degrees and -12 degrees (specific product dependent), effectively “on” and “off” states.  The DMD is typically used as a binary device.



  • Beam steering


  • High speed with a wide angular range
  • Inexpensive compared to conventional devices
Patent Information:
Contact For More Information:
Richard Weite
Senior Licensing Manager, College of Optical Sciences
The University of Arizona
Lead Inventor(s):
Yuzuru Takashima
Brandon Hellman
Guanghao Chen