A novel filter wheel for multi-channel switching and polarization rotation

Weng, Chun-Jen; Wang, Limin; Chen, Chih-Yen; Liu, Daren; Hwang, Chi‐Hung; Chang, Shian-Wen

doi:10.1016/j.ijleo.2019.163122

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…It can be concluded from Table 2 that the SMs were used to realize the light filtering and focusing function, and the direct drive-type PZT actuators were mainly used to realize the focusing function. Generally speaking, SM needs to be equipped with the transmission mechanism to achieve rotary motion to switch filter plates, which brings complex structural design and heavyweight to MSCs, [48,49] SMA is characterized by its remarkable deformation and recoverability. Recent studies have shown that SMAs can effectively be used as actuators through suitable and dedicated mechatronic design.…”

Section: Demonstration Of Integrated Light Filtering and Focusing Fun...mentioning

confidence: 99%

Toward Compact Motorized Lens: Switch and Focus a Filter Wheel with Single Piezoelectric Tube

Wang,

Chen,

Deng

et al. 2023

Adv Materials Technologies

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Multispectral cameras (MSCs) have the capability of detecting and analyzing features invisible to human eyes and are of interest for many applications. However, the traditional MSC suffers from bulkiness since the light filtering and optical focusing mechanisms are independent. Herein, it proposed an integrated strategy that implements two functions through a tunable filtering‐focusing mechanism (TFFM), driven by two degrees of freedom (two‐DOF) piezoelectric tube actuator (PTA). The TFFM can realize light filtering and optical focusing through the rotary and linear motions of PTA. The configuration of PTA is presented, and the working principle is discussed. Then, prototypes of PTA and TFFM are developed, weighing merely 5.5 and 8 g, sizing of Ø7 × 21.4 mm and Ø35 × 7 mm, demonstrating the merits of lightweight and miniaturization. Experiments validate the effectiveness of TFFM, including multispectral images acquired with 0.1 s through rotary motion, focused images obtained with a linear speed of 60.2 mm−1s, and a series of images with different sharpness and wavelengths. The sharpness evaluation algorithms are adopted to determine the sharpest image. The work contributes to reducing the volume of MSC systems with multifunctionalities while keeping the devices simple, providing a practical and effective solution for the integrated design of MSC.

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Section: Demonstration Of Integrated Light Filtering and Focusing Fun...mentioning

confidence: 99%

Toward Compact Motorized Lens: Switch and Focus a Filter Wheel with Single Piezoelectric Tube

Wang,

Chen,

Deng

et al. 2023

Adv Materials Technologies

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show abstract

Miniaturized customized filtering-wheel-based multispectral imaging system for target detection

Wang,

Tong,

et al. 2023

Measurement

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A novel filter wheel for multi-channel switching and polarization rotation

Abstract: The version in the Kent Academic Repository may differ from the final published version. Users are advised to check http://kar.kent.ac.uk for the status of the paper. Users should always cite the published version of record.

Cited by 2 publications

References 18 publications

Toward Compact Motorized Lens: Switch and Focus a Filter Wheel with Single Piezoelectric Tube

Toward Compact Motorized Lens: Switch and Focus a Filter Wheel with Single Piezoelectric Tube

Miniaturized customized filtering-wheel-based multispectral imaging system for target detection

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