Fast Electrically Tunable Lens EL-16-40-TC
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.
The following table summarizes the main specifications of the compact EL-16-40-TC:
| Standard products* | Tuning range | Wavefront error** | Top thread | Bottom thread |
|---|---|---|---|---|
| SY-EL-16-40-TC-VIS-5D | -500 to 333 mm -2 to 3 dpt | <0.25 / <0.50 λ | None | None |
* 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