Modern scientific microscope with selective lens objectives for various magnification or zoom observation used as microbiological apparatus in chemistry lab for blue pathogenic liquid diagnosis Stock Photo | Adobe Stock
A lab-on-phone instrument with varifocal microscope via a liquid-actuated aspheric lens (LAL) | PLOS ONE
Microscope Auto Focus Module: C-Series | Auto Focus Microscopy with No Moving Parts | Corning® Varioptic® Lenses | Corning
Microscopy — Optotune
Motionless microscopy with tunable thermal lens
Continuous optical zoom microscope with extended depth of field and 3D reconstruction | PhotoniX | Full Text
Optical microscopy with flexible axial capabilities using a vari‐focus liquid lens - QU - 2015 - Journal of Microscopy - Wiley Online Library