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EL-10-42-OF data sheet - .PDF file.

Optotune’s new EL-10-42-OF lens — available from Pacer — has integrated optical feedback, measuring the optical power of the lens in real time. Optimal control is guaranteed in combination with the EL-E-OF-A electronics. As a result, reproducibility and focus stability are high, which makes the lens suitable for laser processing applications.

The working principle of the EL-10-42-OF lens with integrated optical feedback is based on the shape-changing flexible lens. The curvature of the lens is adjusted by applying an electrical current, and the focal length is accordingly tuned to a desired value within milliseconds.

The optical power of the lens increases with rising current. The working principle is based on Optotune’s well-established technology of electrically tunable lenses. The core that forms the lens contains an optical fluid, which is sealed off with an elastic polymer membrane. An electromagnetic actuator is used to exert pressure on the container and therefore changes the curvature of the lens. By changing the electrical current flowing through the coil of the actuator, the optical power of the lens is controlled.

Click on the link above to download the data sheet.

Key specifications

  • Diameter: 42mm
  • Height: 36mm
  • Clear aperture: 10mm
  • Focal length range: -500mm to 500mm
  • Refractive index of 1.300


Pacer International is a specialist supplier of optoelectronic components, laser solutions, photonic instruments and information displays.

Pacer International is a specialist supplier of optoelectronic components, laser solutions, photonic instruments and information displays.

We offer a wide range of LEDs, LED arrays and light engines, photo and colour sensors and detectors (covering infrared, visible and ultraviolet), fibre illuminators, laser components and systems, low level light detection, optics and acousto optics, collimators, spectrometers, telecom products, fibre optics and cameras. Our information displays portfolio includes monochrome LCD, TFT, EL and OLED panels, kits, chassis monitor solutions, networkable and standalone digital signage, weatherproof LCDs, sunlight readable displays, and professional CCTV and surveillance products including cameras, DVRs and LCD pro-monitors. Specialist technical and application support is offered on our entire product range.

At Pacer we specialise in finding solutions for both standard and non-standard requirements. We can provide cost-effective commodity devices, customised displays or opto assemblies or full sub-assembly design via the dedicated Pacer Design Centre. Our in-house electronic, optical and mechanical design resource means that we can take on the complete design and build of your product. Pacer has years of experience designing optoelectronic assemblies for applications including industrial and medical systems.

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