TY - GEN
T1 - Speckle reduction device using two-axis resonant microstage
AU - Fujimura, Yasuhiro
AU - Tsukamoto, Takashiro
AU - Tanaka, Shuji
N1 - Publisher Copyright:
© 2018 by Society for Information Display. All rights reserved.
PY - 2018
Y1 - 2018
N2 - This paper reports a speckle reduction device for a laser-type projector, in which an oscillating optical diffuser is driven by a 2-axis resonant microstage. 2-axis motion was achieved by a single PIT thin film actuator, to which drive signals at the resonant frequencies of both axes are superimposed. The maximum displacement as high as 50 pm could be observed, and thus the speckle contrast as low as 0.14 was achieved.
AB - This paper reports a speckle reduction device for a laser-type projector, in which an oscillating optical diffuser is driven by a 2-axis resonant microstage. 2-axis motion was achieved by a single PIT thin film actuator, to which drive signals at the resonant frequencies of both axes are superimposed. The maximum displacement as high as 50 pm could be observed, and thus the speckle contrast as low as 0.14 was achieved.
KW - Laser projector
KW - Moonie actuator
KW - Piezoelectric device
KW - PZTtm
KW - Speckle dissolution device
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UR - http://www.scopus.com/inward/citedby.url?scp=85072103847&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85072103847
T3 - Proceedings of the International Display Workshops
SP - 1218
EP - 1221
BT - 25th International Display Workshops, IDW 2018
PB - International Display Workshops
T2 - 25th International Display Workshops, IDW 2018
Y2 - 12 December 2018 through 14 December 2018
ER -
