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Communication dans un congrès

A passive autofocus system by using standard deviation of the image on a liquid lens

Pejman Rasti 1 Arko Kesküla Henry Haus Helmut Schlaak Alvo Aabloo Rudolf Kiefer
1 iCV Group, IMS Lab, Institute of Technology, University of Tartu, Nooruse 1, 50411, Estonia
Abstract : Today most of applications have a small camera such as cell phones, tablets and medical devices. A micro lens is required in order to reduce the size of the devices. In this paper an auto focus system is used in order to find the best position of a liquid lens without any active components such as ultrasonic or infrared. In fact a passive auto focus system by using standard deviation of the images on a liquid lens which consist of a Dielectric Elastomer Actuator (DEA) membrane between oil and water is proposed.
Keywords : Infrared radiation Liquid lenses Liquids Ultrasonics Imaging systems Dielectrics Dielectric elastomer actuators Cell phones Cameras Actuators
Type de document :
Communication dans un congrès
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https://hal.univ-angers.fr/hal-02527959
Contributeur : Okina Université d'Angers <>
Soumis le : mercredi 1 avril 2020 - 15:30:00
Dernière modification le : jeudi 2 avril 2020 - 17:14:26

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Pejman Rasti, Arko Kesküla, Henry Haus, Helmut Schlaak, Alvo Aabloo, et al.. A passive autofocus system by using standard deviation of the image on a liquid lens. SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, United States. ⟨10.1117/12.2084198⟩. ⟨hal-02527959⟩

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