Objective for Brightfield Observation and Infrared Laser Processing OBJ‑20X0.4‑NIR‑WD20
This series comprises infinity-corrected, flat-field apochromatic objectives for laser processing with femtosecond lasers at the YAG fundamental wavelength. Alongside optimized laser processing, reduced visible-band aberrations allow coaxial observation of the processed surface through the objective. A working distance up to 10 mm and flat-field aberration correction provide uniform processing line widths across the full field and excellent, natural images. Replaceable protective glass shields the objective from debris spatter and scattering during processing. These objectives also support visible pulsed lasers such as 532 nm. Each objective has a damage threshold of 0.1 J/cm² at 532 nm and 0.2 J/cm² at 1064 nm, with a laser pulse width of 10 nanoseconds and repetition rate of 20 hertz.
Overview
Specifications
| Parameter | Value |
|---|---|
| Optical System | Infinity-Corrected (Infinity-Corrected) |
| Chromatic Aberration Correction | Apochromatic (Apochromatic) |
| Operating Wavelength | 430~660nm & 1064nm |
| Matching Tube Lens Focal Length | 200mm |
| Objective Field Number | >25mm |
| Effective Focal Length | 10mm |
| Object-Side NA | 0.45 |
| Working Distance | 20mm |
| Object-Side Resolution | 0.60 μm |
| Depth of Field | 1.4 μm |
| Parfocal distance | 95mm |
| Protective Glass | 1.6mm |
| Interface | M26×0.706 |
Applications
Key Features
Datasheet
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