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Description

Visible and NIR laser processing objective lenses are designed for high-precision laser machining, laser micromachining, semiconductor processing, and advanced optical inspection applications requiring exceptional focusing performance across visible and near-infrared wavelengths.

These infinity-corrected objective lenses combine high numerical aperture (NA), long working distance, and advanced aberration correction to support femtosecond lasers, Nd:YAG lasers, and other precision laser processing systems. Optimized for coaxial imaging and laser beam delivery, the objectives enable accurate laser focusing and real-time observation of the processing area during cutting, drilling, welding, marking, and microfabrication operations.

The objective lenses are ideal for laser processing systems operating at visible and NIR wavelengths, including 532 nm and 1064 nm laser platforms commonly used in industrial manufacturing, semiconductor inspection, biomedical imaging, materials research, and precision optical metrology.

The objective lens is also compatible with visible pulsed lasers such as 532 nm sources. The laser damage threshold is:

0.1 J/cm² at 532 nm

0.2 J/cm² at 1064 nm

(measured at a pulse width of 10 ns and repetition rate of 20 Hz).

Benefits of Infinity-Corrected Objective Lenses in Laser Processing

Infinity-corrected objective lenses project collimated light between the objective and tube lens, allowing additional optical components such as filters, beam splitters, scanners, and imaging systems to be integrated without significantly affecting image quality.

In laser processing applications, infinity-corrected optics provide greater system flexibility, improved aberration correction, and easier integration of coaxial imaging and beam delivery components. This architecture is widely used in advanced laser micromachining, semiconductor inspection, and optical metrology systems.

Infinity-Corrected Visible and NIR 50x Objective Lenses for Laser Processing

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Specifications

Magnification: 50
Numerical Aperture: 0.67
Focal Length: 4 mm
Working Distance: 10 mm
Design Type: Air Immersion
Wavelength Range: Visible, Near Infrared
Wavelength: 430 - 660 nm and 1064nm
Compatible Tube Lens Focal Length: 200 mm
Object Side Resolution: 0.41 um
Compatible Built-in Window Thickness: 0.7 mm
Weight: 509g
Mount: mount M26×0.706
Parfocal Distance: 95 mm
Depth Of Field: 0.61 um
Manufacturer Part Number (MPN): OBJ-50X0.67-NIR-W26-WD10
FindLight SKU: FL-24364

Got questions about specs? Use the inquiry form to ask.

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Features

  • Infinity Corrected
  • Flat Field
  • Apochromatic
  • Both VIS and NIR optimized,
  • VIS+NIR Broadband AR coating
  • High Transmission at both VIS and NIR
  • High laser damaged threshold
  • Large NA

Applications

Visible and NIR laser processing objective lenses are widely used in laser micromachining, semiconductor manufacturing, biomedical imaging, precision metrology, additive manufacturing, and industrial materials processing applications.

Their high numerical aperture, long working distance, and coaxial imaging capability make them ideal for laser drilling, laser cutting, welding, surface structuring, laser marking, and microfabrication systems operating with femtosecond, picosecond, and Nd:YAG laser sources.

These objective lenses are also commonly integrated into semiconductor inspection platforms, machine vision systems, optical research instruments, and precision laser alignment setups where accurate beam focusing and real-time imaging are required.

Export & Trade Information

ECCN: EAR99
HTS Code: 9002.19.00
Estimated US Tariff: 25%

Importing, tariffs & codes (Quick Guide) →

Frequently Asked Questions

What are visible and NIR laser processing objective lenses?
Visible and NIR laser processing objective lenses are specialized optical objectives designed for precision laser focusing, beam delivery, and coaxial imaging across visible and near-infrared wavelengths. These objective lenses are commonly used in laser micromachining, semiconductor processing, precision welding, laser drilling, and scientific imaging systems where accurate laser beam control and high-resolution observation are required. They typically feature high numerical aperture, advanced aberration correction, and long working distance to support demanding industrial and research applications involving visible and near-infrared laser sources.
What wavelengths do NIR objective lenses support?
NIR objective lenses are designed to operate across the near-infrared spectral range, typically covering wavelengths from approximately 700 nm to 1400 nm. Many laser processing objectives are optimized for common industrial laser wavelengths such as 1064 nm used in Nd:YAG and fiber lasers, while also supporting visible wavelengths like 532 nm for alignment and coaxial imaging. The exact wavelength range depends on the optical design and coating specifications of the objective lens.
What is an infinity-corrected objective lens?
An infinity-corrected objective lens is an optical objective designed to project collimated light between the objective and the tube lens instead of forming an image directly at a fixed tube length. A separate tube lens is then used to create the final image. This optical architecture provides greater flexibility for integrating additional optical components such as beam splitters, filters, scanners, and imaging systems without significantly degrading image quality. Infinity-corrected objectives are widely used in modern laser processing systems, industrial microscopy platforms, and scientific imaging instruments.
Why is high numerical aperture important for laser processing?
High numerical aperture (NA) is important for laser processing because it enables tighter laser beam focusing, higher energy density, and improved spatial resolution. A high-NA objective lens can focus the laser into a smaller spot size, which is critical for precision applications such as laser micromachining, microdrilling, semiconductor processing, and fine-feature fabrication. Higher NA also improves optical collection efficiency and imaging performance, allowing better observation of the processing area during laser operations.
Can microscope objectives be used for laser focusing?
Yes, microscope objectives are frequently used for precision laser focusing in applications such as laser micromachining, semiconductor manufacturing, biomedical imaging, optical metrology, and laser alignment systems. High-quality objective lenses with appropriate wavelength compatibility, numerical aperture, optical coatings, and working distance can focus laser beams into extremely small spot sizes with high precision. Laser processing objectives are specifically optimized to handle laser beam delivery and coaxial imaging requirements in industrial and scientific systems.
What are coaxial imaging objective lenses?
Coaxial imaging objective lenses are optical objectives designed to support simultaneous laser beam delivery and imaging along the same optical axis. This configuration allows operators or automated systems to observe the processing area in real time while the laser performs cutting, drilling, welding, marking, or micromachining operations. Coaxial imaging improves alignment accuracy, process monitoring, and positioning precision in advanced laser manufacturing systems and semiconductor processing equipment.
What applications use NIR laser processing optics?
NIR laser processing optics are used in a wide range of industrial, scientific, and manufacturing applications that require precise laser focusing and beam control at near-infrared wavelengths. Common applications include laser micromachining, semiconductor manufacturing, laser drilling, precision welding, additive manufacturing, surface structuring, biomedical imaging, optical metrology, electronics manufacturing, and materials research. These optics are also widely used in femtosecond and Nd:YAG laser systems for high-precision processing of metals, ceramics, polymers, and semiconductor materials.
What is the advantage of long working distance objectives?
Long working distance objectives provide increased physical فاصلة between the objective lens and the sample or workpiece while maintaining high optical performance. This additional clearance is especially important in laser processing and industrial inspection systems where space is needed for laser beam delivery, moving components, tooling, protective windows, or uneven sample surfaces. Long working distance objectives also reduce the risk of contamination or damage to the optics during laser machining and manufacturing operations.
Are these objectives compatible with femtosecond lasers?
Yes, many visible and NIR laser processing objective lenses are specifically designed to support femtosecond laser systems operating at visible and near-infrared wavelengths. These objectives typically feature advanced aberration correction, high transmission efficiency, and optical coatings optimized for ultrafast laser applications. Femtosecond laser processing objectives are commonly used in precision micromachining, semiconductor fabrication, biomedical applications, and scientific research where extremely short pulse durations and high focusing accuracy are required.
What is the difference between standard microscope objectives and laser processing objectives?
Standard microscope objectives are primarily designed for imaging and observation applications, while laser processing objectives are optimized for both imaging and high-power laser beam delivery. Laser processing objectives typically provide enhanced wavelength compatibility, higher damage thresholds, improved thermal stability, long working distance, and coaxial imaging capability. They are specifically engineered to support demanding industrial applications such as laser drilling, cutting, welding, micromachining, and semiconductor processing. In contrast, standard microscope objectives may not be optimized for laser power handling, beam quality preservation, or industrial integration requirements.

Got more questions? Use the inquiry form to ask the supplier directly.

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