Title :
Two-axis electromagnetic microscanner for high resolution displays
Author :
Yalcinkaya, Arda D. ; Urey, Hakan ; Brown, Dean ; Montague, Tom ; Sprague, Randy
Author_Institution :
Coll. of Eng., Koc Univ., Istanbul
Abstract :
A novel microelectromechanical systems (MEMS) actuation technique is developed for retinal scanning display and imaging applications allowing effective drive of a two-axes scanning mirror to wide angles at high frequency. Modeling of the device in mechanical and electrical domains, as well as the experimental characterization is described. Full optical scan angles of 65deg and 53deg are achieved for slow (60 Hz sawtooth) and fast (21.3 kHz sinusoid) scan directions, respectively. In combination with a mirror size of 1.5 mm, a resulting thetasopt D product of 79.5 degmiddotmm for fast axis is obtained. This two-dimensional (2-D) magnetic actuation technique delivers sufficient torque to allow non-resonant operation as low as dc in the slow-scan axis while at the same time allowing one-atmosphere operation even at fast-scan axis frequencies large enough to support SXGA (1280 times 1024) resolution scanned beam displays
Keywords :
electromagnetic actuators; image scanners; micro-optics; microactuators; microdisplays; optical scanners; 1.5 mm; 21.3 kHz; 2D magnetic actuation; 60 Hz; SXGA resolution scanned beam displays; electromagnetic microscanner; high resolution displays; microelectromechanical systems actuation technique; nonresonant operation; retinal scanning display; two-axes scanning mirror; Drives; Frequency; High-resolution imaging; Microelectromechanical systems; Micromechanical devices; Mirrors; Optical imaging; Optimized production technology; Retina; Two dimensional displays;
Journal_Title :
Microelectromechanical Systems, Journal of
DOI :
10.1109/JMEMS.2006.879380
