Application of solid tunable lenses in endoscopic systems (Conference Presentation)

2017 ◽  
Author(s):  
Yongchao Zou ◽  
Fook Siong Chau ◽  
Guangya Zhou
Keyword(s):  
Tunable Lenses

scholarly journals A DIY Fabrication Approach for Ultra-Thin Focus-Tunable Liquid Lens Using Electrohydrodynamic Pump

Micromachines ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1452
Author(s):  
Taichi Murakami ◽  
Yu Kuwajima ◽  
Ardi Wiranata ◽  
Ayato Minaminosono ◽  
Hiroki Shigemune ◽  
...  
Keyword(s):  
Low Cost ◽  
Rapid Development ◽  
Pure Water ◽  
Dielectric Fluid ◽  
Copper Sheet ◽  
Fluidic Channel ◽  
Liquid Lens ◽  
Do It Yourself ◽  
Tunable Lenses ◽  
Smart Mobile

Demand for variable focus lens is increasing these days due to the rapid development of smart mobile devices and drones. However, conventional mechanical systems for lenses are generally complex, cumbersome, and rigid (e.g., for motors and gears). This research proposes a simple and compact liquid lens controlled by an electro hydro dynamics (EHD) pump. In our study, we propose a do-it-yourself (DIY) method to fabricate the low-cost EHD lens. The EHD lens consists of a polypropylene (PP) sheet for the exterior, a copper sheet for the electrodes, and an acrylic elastomer for the fluidic channel where dielectric fluid and pure water are filled. We controlled the lens magnification by changing the curvature of the liquid interface between the dielectric fluid and pure water. We evaluated the magnification performance of the lens. Moreover, we also established a numerical model to characterize the lens performance. We expect to contribute to the miniaturization of focus-tunable lenses.

Additive manufacturing of tunable lenses

2017 ◽  
Author(s):  
Katja Schlichting ◽  
Tobias Novak ◽  
Andreas Heinrich
Keyword(s):  
Additive Manufacturing ◽  
Tunable Lenses

scholarly journals Optical performance of piezoelectrically actuated MEMS tunable lenses with various pupil geometries

2017 ◽  
Vol 56 (3) ◽  
pp. 035104 ◽  
Author(s):  
Mahmoud A. Farghaly ◽  
Muhammad Nadeem Akram ◽  
Einar Halvorsen
Keyword(s):  
Optical Performance ◽  
Tunable Lenses

Compact optical design solutions using focus tunable lenses

2011 ◽  
Author(s):  
M. Blum ◽  
M. Büeler ◽  
C. Grätzel ◽  
M. Aschwanden
Keyword(s):  
Optical Design ◽  
Design Solutions ◽  
Tunable Lenses

scholarly journals Axial scanning employing tunable lenses: Fourier optics based system design

OSA Continuum ◽  
2019 ◽  
Vol 2 (4) ◽  
pp. 1318 ◽  
Author(s):  
Katrin Philipp ◽  
Jürgen Czarske
Keyword(s):  
System Design ◽  
Fourier Optics ◽  
Tunable Lenses ◽  
Axial Scanning

scholarly journals VIEW-MOD: A Versatile Illumination Engine With a Modular Optical Design for Fluorescence Microscopy

2019 ◽  
Author(s):  
Bei Liu ◽  
Chad M. Hobson ◽  
Frederico M. Pimenta ◽  
Evan Nelsen ◽  
Joe Hsiao ◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Optical Design ◽  
Light Sheet ◽  
Axial Position ◽  
Beam Shape ◽  
Precise Control ◽  
Volume Imaging ◽  
3D Volume ◽  
Tunable Lenses ◽  
And Control

AbstractWe developed VIEW-MOD (Versatile Illumination Engine With a Modular Optical Design): a compact, multi-modality microscope, which accommodates multiple illumination schemes including variable angle total internal reflection, point scanning and vertical/horizontal light sheet. This system allows combining and flexibly switching between different illuminations and imaging modes by employing three electrically tunable lenses and two fast-steering mirrors. This versatile optics design provides control of 6 degrees of freedom of the illumination source (3 translation, 2 tilt, and beam shape) plus the axial position of the imaging plane. We also developed standalone software with an easy-to-use GUI to calibrate and control the microscope. We demonstrate the applications of this system and software in biosensor imaging, optogenetics and fast 3D volume imaging. This system is ready to fit into complex imaging circumstances requiring precise control of illumination and detection paths, and has a broad scope of usability for a myriad of biological applications.

scholarly journals Advances in the development of tunable lenses in Mexico

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Agustin Santiago-Alvarado ◽  
Sergio Vazquez-Montiel ◽  
Jorge Gonzalez-Garcia ◽  
Fernando Iturbide-Jimenez ◽  
Angel S. Cruz-Felix ◽  
...  
Keyword(s):  
Tunable Lenses

scholarly journals Design and analysis of an 8x four-group zoom system using focus tunable lenses

2018 ◽  
Vol 26 (10) ◽  
pp. 13370 ◽  
Author(s):  
Sun-Hyung Jo ◽  
Sung-Chan Park
Keyword(s):  
Tunable Lenses

Electrically tunable lenses – eliminating mechanical axial movements during high-speed 3D live imaging

2021 ◽  
Vol 134 (16) ◽  
Author(s):  
Christoforos Efstathiou ◽  
Viji M. Draviam
Keyword(s):  
Cell Biology ◽  
High Speed ◽  
Imaging Techniques ◽  
Three Dimensional ◽  
Cost Effective ◽  
High Speed Imaging ◽  
Liquid Lenses ◽  
Live Cell Microscopy ◽  
Tunable Lenses ◽  
Cell Microscopy

ABSTRACT The successful investigation of photosensitive and dynamic biological events, such as those in a proliferating tissue or a dividing cell, requires non-intervening high-speed imaging techniques. Electrically tunable lenses (ETLs) are liquid lenses possessing shape-changing capabilities that enable rapid axial shifts of the focal plane, in turn achieving acquisition speeds within the millisecond regime. These human-eye-inspired liquid lenses can enable fast focusing and have been applied in a variety of cell biology studies. Here, we review the history, opportunities and challenges underpinning the use of cost-effective high-speed ETLs. Although other, more expensive solutions for three-dimensional imaging in the millisecond regime are available, ETLs continue to be a powerful, yet inexpensive, contender for live-cell microscopy.

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