This paper proposes a new structure of variable-focus lens aimed at 1 kHz bandwidth. Two kinds of prototypes are developed to validate the structure. The 1 kHz bandwidth is confirmed by the frequency response measurements. One prototype is applied to the axial high-speed scan of a confocal laser scanning microscope. Depth information measurements of a microscopic object in 1 ms and automated focusing to keep the focus on a randomly moving object are successfully achieved.
A variable-focus lens with 1 kHz bandwidth applied to axial-scan of a confocal scanning microscope
2003-01-01
143725 byte
Conference paper
Electronic Resource
English
A Variable-Focus Lens with 1kHz Bandwidth Applied to Axial-Scan of a Confocal Scanning Microscope
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