EL-7-20-TC Compact Electrically Tunable Liquid Lenses EL-7-20-TC-VIS-14D-1
EL-7-20-TC balances performance/cost for OEM optics requiring extreme repeatability in industrial/medical applications. Mature deformable-lens technology changes curvature with current, switching plano-concave/plano-convex in milliseconds over -6 to +8 dpt. Push-pull construction provides stable bidirectional tuning. EL-7-20-TC uses a reliable, mechanically stable voice-coil drive. Low temperature sensitivity, built-in temperature sensing and 100% individual calibration improve long-term repeatability/consistency across temperatures and complex industrial conditions. Suits barcode readers, quality control, microscopes, microplate readers, IVF incubators, skin scanners, surgical imaging and other highly reliable optics. Standard selection configurations, not technical parameters: Model | Focal Range （dpt） | Wavelength Range（nm） | Wavelength Range （nm） | Grade | Compatible Drivers EL-7-20-TC-VIS-14D | -6-+8 | 0.10 | 420-950 | 2 | ICC-1C ICC-4C-500 EL-7-20-TC-VIS-14D-1 | -6-+8 | 0.07 | 420-950 | 1 | ICC-1C ICC-4C-500
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Overview
Specifications
| Parameter | Value |
|---|---|
| Clear Aperture Dimension | 7.0 mm |
| Optical Power Range [25°C；±250 mA] | -6 - +8 dpt （25°C，±250 mA） |
| Optical Power at Zero Current [0 mA；25°C] | typical:0 - +2.5 dpt （0 mA，25°C， typical ） |
| Transmission Wavelength Range | VIS: 420 - 950 nm |
| Wavefront Error [class 1;0 dpt;Vertical Optical Axis;RMS;532nm] | 0.07 λ |
| Wavefront Error [class 1;0 dpt;Horizontal Optical Axis;RMS;532nm] | 0.085 λ |
| Lens Type | Plano-Concave to Plano-Convex |
| Refractive Index / Abbe Number | nD = 1.45 / ν = 55 |
| Optical-Axis Concentricity | 0.15 mm |
| Response Time [10%–90%;25°C;0→±250 mA Step] | 1 ms (10%–90%, 25°C, 0 → ±250 mA step) |
| Settling Time [Including Signal Conditioning] | 7 ms |
| Settling Time [Rectangular Step] | 20 ms |
| Cycle Life [-200 mA to +200 mA； Sine Wave ；20 Hz] | ＞1000000000 （-200 mA to +200 mA， Sine Wave ，20 Hz） |
| Operating Temperature Range | -20 - 65 °C |
| Storage Temperature Range | -40 - 85 °C |
| Weight | 3.15 g |
Key Features
Datasheet
Supplier Information
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