Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1997-03-06
1998-05-19
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359295, 359224, 359846, 310328, 348771, G02B 2600
Patent
active
057543305
ABSTRACT:
Thin film AMA in an optical projection system and a method for manufacturing the same are disclosed. The thin film AMA has a substrate having an electrical wiring and a connecting terminal, an actuator formed on the substrate, and a reflecting member formed on the actuator. The actuator has a plurality of actuating portions in which adjacent actuating portions tilt in opposite directions one after another. Each actuating portion has bottom electrodes, active layers, top electrodes, and via contacts. The top electrodes and bottom electrodes of the actuating portions are cross-connected, so electric fields are generated in opposite directions. The reflecting member installed on the actuator has a large tilting angle. Therefore, the light efficiency of the light reflected by the reflecting member increases and the contrast of the picture projected onto a screen also increases.
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Ben Loha
Daewoo Electronics Co. Ltd.
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