With a clear aperture of 16 mm Optotune presents the worlds‘s largest electrically focus tunable lens. Its design has been optimized in many ways:

• The 60% larger aperture than its predecessor, the EL-10-30, allows for 2.5x more light throughput
• The tunable lens can be shaped from a flat zero-state into a plano-concave or plano-convex lens, resulting in a focal tuning range of up to -10 to +10 diopters (at -250 to +250mA)
• The design was optimized to minimize thermal drift effects to as little as 0.02 dpt/°C and with the built in temperature sensor, an overall reproducibility of typically +/- 0.05 diopters is achievable
• Response & settling times are 5 & 25ms, respectively, which is still magnitudes faster than most mechanical alternatives
• Integration of the lens shaper inside the container allows for the highest possible positioning accuracy of the tunable lens

The EL-16-40-TC is available in its compact form for OEM integration but also with multiple thread adapters and a robust Hirose connector for industrial use, where the tunable lens can be easily combined with off-the-shelf imaging lenses.

EL-16-40-TC (OEM version)	EL-16-40-TC with thread adapters (industrial version)

The following table summarizes the main specifications of the EL-16-40-TC series:

* All models are available with a 6-pin FPC connector. The models with thread adapters come with a 6-pin Hirose connector
** Wavefront error provided in λ RMS @525nm with optical axis vertical / horizontal

Applications

Applications for Optotune's EL-16-40-TC are among others:

• Machine vision
• Microscopy
• True 3D in augmented and virtual reality
• Refraction correction in ophthalmic devices