Elevate solar cell manufacturing with Jenoptik’s high-precision F-Theta lenses
High-precision solar cell scribing

Laser processing plays a decisive role in the production of thin-film solar cells, particularly in the structuring of cell connections and the insulation of module edges. Highly developed optical components, such as the F-Theta lenses from Jenoptik, enable the realization of very narrow and accurate structures on solar cells. F-theta lenses are therefore indispensable for continuously achieving high-precision results in various tasks such as laser structuring, soldering or marking. The use of ultra-short pulse lasers is indispensable for many applications, and the F-Theta lens must be able to maintain its performance over a long period of time.
Key considerations for high-end laser systems:
- Substrate protection: Ensuring the integrity of the substrate and underlying layers is essential, especially for sensitive structures under 100 nanometers.
- Quality management: Effectively managing particle residue, thermal effects, and edge burr formation is crucial for maintaining high-quality results.
- Optimized process parameters: Careful consideration of gas atmosphere, pulse shaping, and post-processing techniques enhances overall quality. Utilizing hybrid processes like thermochemical ablation can effectively address specific challenges in structuring materials such as Indium Tin Oxide (ITO).
Expand your limits and benefit from optimized F-Theta features:
- Large scan fields
- Large focus lengths
- Excellent focus homogeneity over the entire field
- High beam stability

Discover the new application-tailored F-Theta lenses
JENar™ APTAline™ 429-515...540-339-AL
Parameters | |
Focal length | 429 mm |
Wavelength | 515 - 540 nm |
Scan field (X x Y); Ø | (240 mm x 240 mm); 339 mm |
Diagonal scan angle | ± 22.8° |
Back working distance | 547.7 mm |
X/Y mirror angle | ± 8.0 |
Flange focus distance | 629.5 mm |
Input beam Ø 1/e² | 16.0 mm |
Focus size Ø 1/e² | 26.9 µm |
a1 | 17.00 mm |
a2 | 32.51 mm |
Telecentricity (only F-Theta | with scanner) | 12.4° | 12.4° |
Group delay dispersion (GDD) | 3328 fs² |
LIDT coating pulsed; CW | 1.25 J/cm² * (τ/[ns])0.35; 1.25 MW/cm² |
LIDT system pulsed; CW | 1.25 J/cm² * (τ/[ns])0.35; 1.25 MW/cm² |
Weight | 1.5 kg |
Order number | 739668 |
The right fit for your application
JENar™ APTAline™ 420-355-353-AL
Parameters | |
Focal length | 420 mm |
Wavelength | 355 nm |
Scan field (X x Y); Ø | (250 mm x 250 mm); 353 mm |
Diagonal scan angle | ± 24.0° |
Back working distance | 496.0 mm |
X/Y mirror angle | ± 8.5 |
Flange focus distance | 572.0 mm |
Input beam Ø 1/e² | 15.0 mm |
Focus size Ø 1/e² | 18.9 µm |
a1 | 17.00 mm |
a2 | 35.1 mm |
Telecentricity (only F-Theta | with scanner) | 14.7° | 14.7° |
Group delay dispersion (GDD) | 6350 fs² |
LIDT coating pulsed; CW | 0.5 J/cm² * (τ/[ns])0.4 ; 0.5 MW/cm² |
LIDT system pulsed; CW | 0.5 J/cm² * (τ/[ns])0.4 ; 0.5 MW/cm² |
Weight | 1.4 kg |
Order number | 739569 |
Unlock the full potential of your processes

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