Optotune’s XPR®-25 is an Extended Pixel Resolution 4-position Actuator. With a clear aperture of about 25mm it is designed for use with Texas Instrument’s 0.47” DMD ECD and Pico chipset.

Main features:

  • High angular position accuracy of typically +/-8%
  • Fast transition times of typically 1.2 to 1.3ms
  • Low acoustic noise of typically 21dBA
  • Fully pre-calibrated at 50 & 60Hz for temperatures up to 75°C

 

Optotune XPR-25
XPR®-25

 

Working principle

The pixel shifting principle is that of tilting a glass window.

Pixel shifting principle

The XPR®-25 tilts a glass window in two axes to reach four distinct positions. As a result each pixel is projected to four locations.

Extended pixel resolution principle

The result is a high-quality 4K display. 

4k resolution on eyes
Image courtesy of 4k.com

 

Other beam shifting applications

Beyond the use case at 50 or 60Hz in projectors, the XPR®-25 can also be used in DC mode or calibrated to perform different shifting patterns. Further applications are:

  • 3D printing (resolution increase and/or smoothing)
  • Cameras (super-resolution imaging)
  • Metrology