Focus tunable lenses

Optotune is a leading supplier of focus tunable lenses, also known as liquid lenses. Initially developped in 2008, Optotune’s lenses have become the prime choice for demanding focusing solutions making them:

  • More compact

  • Faster

  • Highly reliable

  • Less tolerance sensitive

  • More flexible with remote control

Optotune lenses come in a variety of sizes from 3 to 42 mm clear aperture, with several coating options ranging from 400 to 2200 nm and comprise three sub-families:

  1. Electrically tunable lens (EL series)

  2. Manually tunable lenses (ML series)

  3. Electrical lens modules (ELM-F and ELM-T series).

Optotune focus tunable lenses

Optotune focus tunable lenses

 
 

Gravity Compensated Liquid Lenses by Optotune

Standard vs Gravity Compensated Liquid Lenses

 
 
 

Optotune liquid lenses for fast focusing in machine vision 简中字幕

Webinar on liquid lenses and how they can be used in Zemax

 

The following table summarizes the main specifications of Optotune's EL and ML series:

Product series Product description
Clear aperture
(mm)
Size ØxH (mm) Lens type Optical power range (dpt) Refractive index
CCM Compact lens solutions 1.3 - 4.4 Customizable 1.30 or 1.45
EL-3-10 Electrically tunable lens 3 10 x 4.0 Plano convex to plano concave -13 to + 13 1.30
EL-10-42-OF Electrically tunable lens 10 42 x 41 Plano convex + plano concave offset lens with optical feedback (OF) -2 to +2 1.30
EL-12-30-TC Electrically tunable lens 12 30 x 5.8 Plano convex to plano concave -6 to +10 1.45
EL-16-40-TC Electrically tunable lens 16 40 x 11.9 Plano convex to plano concave -2 to +3
-10 to +10
1.30
ML-20-37 Manually tunable lens 20 37 x 13.2 Plano convex to plano concave -18 to +18 1.38

Products: focus tunable lenses & controllers

EL-12-30-TC

EL-16-40-TC

EL-10-42-OF

ML-20-37

ELM-F series

ELM-T series

 

Related content: applications

Machine vision

Laser processing

Ophthalmology