Beam shifting
Overview
Optotune’s XPRs are Extended Pixel Resolution 2- and 4-position actuators. By acurately tilting a glass window, light that passes through it is shifted laterally. Standard products are available with clear apertures ranging from 9mm to 33mm.
Main features of 4-position Actuators:
High angular position accuracy of typically +/-5 to 8%
Fast transition times of typically 1.2 to 1.35ms
Low acoustic noise of typically 20 to 22dBA at 30cm
Fully pre-calibrated at 50 & 60Hz for temperatures up to 75°C
Optotune XPR’s have been designed to be used in projection systems based on Texas Instruments DLP® technology, but are also used for other applications such as:
3D printing (resolution increase and/or smoothing)
Cameras (super-resolution imaging)
Metrology
Optical coupling
XPR-20
Working principle: The pixel shifting principle is that of tilting a glass window.
The XPR tilts a glass window in one/two axes to reach multiple distinct positions. As a result, each pixel is projected to two/four locations.
Products: beam shifting
Related content: applications
Projection