Angular Spatial Light Modulator (Aslm)

Technology #ua17-156

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Braden Smith
Master student, Optical sciences
Brandon Hellman
PhD student, Optical Sciences
Yuzuru Takashima
Associate Professor, Optical Sciences
Managed By
Amy Phillips
Sr. Licensing Manager (520) 621-9579

Title: The Angular Spatial Light Modulator (ASLM)


Background: The invention is an Angular Spatial Light Modulator (ASLM) using a novel arrangement of illumination and digital micro-mirror devices (DMDs). The invention can simultaneously modulate spatial and angular content of light with a potential total bandwidth of 1Tera pixel-angle per second (1G in space and 1K in angle).


Background: Optical systems control light spatially and angularly, with spatial describing the distribution of light on a single plane and angular describing the propagation of light between planes. The current means of controlling light through the angular domain is limited because it relies on a motorized scanning mirror with a data rate 1000 times smaller than a spatial light modulator. Therefore, a solution is needed to modulate both the angular and spatial domain without creating a bottleneck.



  • Lidar
  • Virtual reality or augmented reality displays
  • Projectors



  • Much higher angular and spatial modulation rates
  • Less expensive than mechanical scanners
  • More compact than mechanical scanners
  • More rugged and less vulnerable to failure


Licensing Manager:

Amy Phillips