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Title: Microelectromechanical-systems-driven two-layer rotary-blade-based adjustable iris diaphragm
Authors: Zhou, G. 
Yu, H. 
Du, Y. 
Chau, F.S. 
Issue Date: 15-May-2012
Source: Zhou, G.,Yu, H.,Du, Y.,Chau, F.S. (2012-05-15). Microelectromechanical-systems-driven two-layer rotary-blade-based adjustable iris diaphragm. Optics Letters 37 (10) : 1745-1747. ScholarBank@NUS Repository.
Abstract: We report a miniature adjustable multi-blade iris diaphragm driven by microelectromechanical-systems-based electrostatic rotary microactuators. A proof-of-concept device is designed and fabricated using a silicon-on-insulator micromachining process. The diameter of the developed iris diaphragm aperture is experimentally demonstrated to be able to adjust from 0.45 to 1.56 mm. When used in a miniature camera lens system, the current prototype device is capable of providing an adjustment range of more than three full f /stops. © 2012 Optical Society of America.
Source Title: Optics Letters
ISSN: 01469592
DOI: 10.1364/OL.37.001745
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