
Rotary Adjustable Focus Collimator RADFCC-4.5-APC
RADFCC-4.5-APCDesign Tools
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The rotary adjustable focus collimator provided by LBTEK features a compact structure and simple, convenient adjustment, making it easy to collimate fiber optic output light. With an FC/APC interface, the adjustable focus collimator is currently available in three coating wavelength options: 350 nm–700 nm, 600 nm–1050 nm, and 1050 nm–1700 nm. All adjustable focus collimators are coated with anti-reflection coatings to reduce reflectivity. For detailed parameters, please refer to the parameter table or curve data. LBTEK offers a variety of customization services. For specific customization requirements, please contact LBTEK technical support.
- Interface: FC/APC
- Focal Length: 4.5 mm
- Internal Lens: Aspherical Lens

| Focal length | 4.5 mm |
| Anti-reflection coating range<sup>e</sup> | Ravg≤0.5%@1050nm-1700 nm |
| Output beam waist diameter<sup>a</sup> | 0.87mm |
| Material | D-ZLaF52LA |
| Interface Type | FC/APC |
| Numerical Aperture (Output) | 0.6 |
| Beam Divergence | ≤0.13° |
| Mode Field Diameter (Output) | 5.0 μm |
| Working Distance (Long) | 189 mm |
| Beam Diameter (Output) | 4.8 mm |
| Beam Divergence | ≤5mard |





