20mm Fiber Laser Focusing Lens, Mounted, AR Coated, 532nm, 30mm FL
HFTLSQ-20-30PF2
High performance multi-element focusing lens. They are suitable for focusing and collimating solid state lasers like Yb fiber laser, YAG laser and YVO4 laser.
Engineered and designed to reduce the effects of thermal expansion. Corrected for spherical aberration and coma at 532nm. AR coating optimized from design wavelength with transmission at 633nm for pointed lasers
| Name | 20mm Fiber Laser Focusing Lens, Mounted, AR Coated, 532nm, 30mm FL |
|---|---|
| Weight | 0.0400lbs |
| Standard Coatings Available | No |
| Guide |
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| Attention | Focusing Lenses can be used to bring an object at infinity into focus, or to convert a point light source into a collimated light. When used for imaging at close distance, sufficient optical performance will not be provided. Focusing Lenses have a designated incident side. Be sure to input a collimated light from the upper side of the engraved lettering on the lens barrel. When reversed, chromatic and spherical aberrations increase, leading to a larger focus spot and blurred images. Chromatic aberration and transmittance will deteriorate if used outside the specified wavelength range. When used with a high-power laser or near a light source that produces heat, the focal length has possibility to change due to the high temperature of the lens. Heat dissipation measures are required for prolonged irradiation. If the incident beam diameter is too small, the spot size will not be well focused. Chromatic aberration is not corrected in this focusing lens, which is not an achromatic lens. |
| Design wavelength | 532nm |
| Diameter | φ20mm |
| Material | Synthetic fused silica |
| Material of frame | Aluminum (Finishing: Black anodized) |
| Design wavelength | 532nm |
| Coating | Broadband Multilayer Antireflection Coating |
| Transmittance | >98.5% (532nm), >97% (500-570nm), >50% (600-700nm) |
| Focal length f | 30.01mm |
| Diameter Dc | 30mm |
| Clear aperture De | 17mm |
| Length L | 21mm |
| Lens mounting thread Ma | M28 P0.75 |
| Protective window thread Mb | M28 P0.75 |
| Numerical aperture (NA) | 0.28 |
| Working distance (WD) | 22.41mm |
| Acceptance angle | +/-1.2 Deg. |
In stock
SKU
HFTLSQ-20-30PF2
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High performance multi-element focusing lens. They are suitable for focusing and collimating solid state lasers like Yb fiber laser, YAG laser and YVO4 laser.
