ELM Series Optotune liquid lens
Lenses

Liquid Lenses

Precise focus adjustment without mechanical parts

Liquid lenses offer fast and precise focusing without any moving mechanical parts. Optotune's liquid lenses can be controlled directly through compatible Basler cameras using the same SDK, enabling seamless integration and operation.

  • Focusing without mechanics

    Electronic focus adjustment without mechanical components
  • For various sensors

    Suitable for sensor sizes up to 4/3" and resolutions up to 3.5 µm
  • Wide range of focal lengths and aperture sizes

    Lenses with focal lengths ranging from 12 mm to 80 mm and maximum apertures ranging from F3.1 to F5.4
  • Easy control

    Can be controlled directly through the Basler camera within the same SDK
Vision system with lens and lighting control via the camera, all within a single SDK.

An overview of liquid lenses

Find the right lens for your application or learn more about Optotune, a leading manufacturer of liquid lenses.

What are liquid lenses?

Liquid lenses change their focal length electronically by altering the shape of an optical fluid.

Liquid lenses electronically adjust their focal length or refractive power by deforming an optical fluid. Unlike conventional lenses, focusing occurs directly within the lens without any moving mechanical components. This enables extremely fast and precise focusing.

Liquid lenses are particularly well-suited for machine vision applications involving varying working distances, high cycle speeds, or limited installation space. Due to a compact design and wear-free focusing, they offer a reliable solution for demanding industrial machine vision systems.

Advantages of liquid lenses

High focusing speed


Liquid lenses allow for focus adjustments in milliseconds. This makes them ideal for dynamic processes, high-speed applications, and automated inspection systems.


Varying work intervals


A single system can accommodate different object distances without mechanical readjustment or lens changes, increasing flexibility and reducing setup times.


Wear-free focusing


Since focusing occurs without mechanical movement, liquid lenses operate with virtually no wear. This results in a long service life and minimal maintenance.


Compact design


Its compact size allows it to be integrated even into space-constrained machines, embedded vision systems, and compact automation solutions.

A comparison: liquid lenses and traditional lenses

Feature

Liquid Lenses

Classic Lenses

Focus speed

Very high

Limited

Dynamic focus shift

Ideal for varying working distances

Restricted

Mechanical wear

Minimal

Available

Camera size

Compact

Larger

Maintenance costs

Low

Higher

Capital expenditures

Higher

Low

Conclusion: Liquid lenses excel in any application that requires rapid focus changes, varying object distances, and high process dynamics. Conventional lenses, on the other hand, remain a cost-effective solution for applications with fixed focus distances.

Applications of liquid lenses

Liquid lenses are well suited for industrial applications involving varying object sizes, changing working distances, and high cycle speeds. Their fast, wear-free focusing enables high process reliability and short cycle times.


  • Barcode and OCR reading with changing object positions

  • Pick-and-place systems in automation technology

  • Electronics inspection with different test heights

  • High-speed inspection in production processes

  • Quality control in automated production lines

  • Robot vision for flexible gripping and handling tasks

  • Packaging and logistics systems for products of varying sizes

How can we support you?

We will be happy to advise you on product selection and find the right solution for your application.