EL-3-10
The compact EL-3-10 lens is designed for OEM integration into optical systems for various applications. The working principle is based on the well-established shape-changing lens technology. The curvature of the lens is adjusted by applying an electrical current. Thereby, the focal length is tuned to a desired value within very few milliseconds. The lens architecture is “push pull” which means that the lens curvature is deflected from concave to convex. With actuators based on proven voice-coil technology, the EL-3-10 focus tunable lens is extremely reliable and robust, well suited even for applications in harsh environments over large temperature ranges.
Key advantages:
Fast response time <1ms
Large focal power range of 26 diopters
Lower power, typically <15mW
EL-3-10-VIS-26D
Applications
Optotune's EL-3-10 is the ideal choice for:
Imaging up to 1/1.8” sensors
Biometric systems
Optical coherence tomography (OCT)
Laser illumination
EL-3-10-VIS-26D with FPC cable
The following table summarizes the main specifications of the EL-3-10:
| Specification category | Specification detail |
|---|---|
| Dimensions (Ø x thickness) | 10 x 4 mm |
| Clear aperture | 3mm |
| Range of optical power (focal length) | -13 dpt (-77mm) to +13 dpt (+77mm) |
| Transmission wavelength (>94%) | 420 to 1600nm (VIS and NIR coating options) |
| Response time (10/90% step), settling time | 1, 4 ms |
| Wavefront error | <0.15/<0.15λ* |
| Operating temperature | -20 to 65°C |
* Wavefront error provided in λ RMS @525nm with optical axis vertical / horizontal
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