Focusing Lens for Fiber Laser / HFTLSQ-30-60PF1

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.

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Part Number
HFTLSQ-30-60PF1
¥105,000
◦Engineered and designed to reduce the effects of thermal expansion.
◦Corrected for spherical aberration and coma at 1064nm. Diffraction limited for F number ≧2 (NA≦0.25)
◦AR coating optimized from 1040 − 1150nm with transmission at 633nm for pointed lasers
More Information
Catalog Code W3080
RoHS Yes
CE No
Download Product's Datasheet
CAD data
Guide ▶Dedicated Fixed Framed Lens Holder (LHF-M29-25, LHF-M34-30, LHF-M50.9-50) are available for fixing various Focusing Lenses.
▶HFTLSQ-15-20PF comes with a dedicated adapter for mounting on Fixed Framed Lens Holder (LHF-M29-25).
▶HFTLSQ-20-30PF comes with a dedicated adapter for mounting on Fixed Framed Lens Holder (LHF-M34-30).
▶Custom-made Focusing Lenses for high-energy pulsed lasers and for specified wavelengths are also available.
▶Production in lots exceeding 100 pieces to customer specifications is also available.
▶To protect the lens from laser-processed splashes, optional Protective Glass (PG-33) can be attached.
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.
Numerical aperture (NA) 0.22
Working distance (WD) 51.4mm
Coating 反射防止膜
Diameter φDc φ36mm
Lens mounting thread Ma M34 P0.75
Protective window thread Mb M34 P0.75
Focal length f 60.1mm
Design wavelength 1064nm
Length L 23mm
Transmittance >98.5% (1060~1080nm)
>97% (1040~1150nm)
>53% (600~700nm)
Acceptance angle ±1°
Clear aperture φDe φ27mm
Laser Damage Threshold 7J/cm2 (パルス幅10ns、繰り返し周波数20Hz)
Housing Material アルミ 表面処理:黒アルマイト