High-Power Focusing Objective Lenses (NUV) / HPOBL-10-NUV
An air gap type objective lens with a parfocal distance of 45mm that does not use adhesive to bond the lenses. They use synthetic fused silica, which has high transmittance in the UV range, and CaF2 material for UV for lenses. They can be used for focusing and collimating high power lasers.
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Part Number
HPOBL-10-NUV
¥242,000
- Spherical aberration and coma are sufficiently corrected for UV to near-ultraviolet monochromatic light, and collimated laser light with a beam diameter of 70% of the pupil diameter can be focused to the spot diameter up to the diffraction limit.
- An AR coating that is highly resistant to laser damage and is suitable for the UV range of 340 to 380nm is applied. The axial chromatic aberration is reduced in the UV to near-ultraviolet range, and it can be used with multi-wavelength lasers by changing the coating specifications. In addition, since it transmits to some extent even at 632.8nm, a He-Ne guiding laser can be used.
- To take advantage of the excellent focusing performance obtained on the optical axis, it is recommended that the object side be moved.
- To protect the lens from laser-processed splashes, a replaceable protective glass is an option for the 10x objective lens. (The 20x objective lens originally has a protective glass attached to the product.)
| Catalog Code | W3232 |
|---|---|
| RoHS | Yes |
| CE | No |
| CAD data | |
| Guide |
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| Attention |
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| Laser Damage Threshold | 4 J/cm2 |
| AR coating wavelengths | 340 - 380 nm |
| Numerical aperture (NA) | 0.25 |
| Real field of View (Eyepiece φ24mm) | 1.4 mm |
| Pupil diameter | 10 mm |
| Working distance (WD) | 15.9 mm |
| Weight | 0.039 kg |
| Focal length f | 20 mm |
| Focal depth | 3.5 μm |
| Magnification | 10x |
| Resolution | 0.71 μm |
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