Newport offers a full range of beam expanders , F-Theta scan lenses, and objectives to meet various experimental requirements. Our beam expanders provide a fixed expansion factor with adjustable divergence to effectively control the beam size of laser output beams. Standard and telecentric F-Theta scan lenses are available to provide a flat field at the image plane for scanning applications. Objective types include Precision Objective Lenses, UV Objective Lenses, Laser Diode Objective Lenses and Reflective Microscope Objectives.
Selecting an Optical Beam Expander or Objective
Click Beam Expanders and Objectives to shop or browse all of our standard models, or select a product series below for more information on our products and capabilities.
| Laser Beam Expanders |
Features |
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Laser Beam Expanders |
• 3x to 30x
• Galilean optical design
• Ideal for use with HeNe lasers
• Wavefront distortion less than Λ/4
• Transmission greater than 95% |
 |
High-Energy Laser Beam Expanders |
• 4x to 20x expansion
• Galilean design eliminates focused retroreflections
• Air-spaced optical design with large entrance aperture
• Adjustable focus for collimation at various wavelengths
• Damage threshold up to 8 J/cm2 |
 |
Fixed Expansion Laser Beam Expanders |
• 3x, 5x and 10x fixed expansion factor
• Galilean optical design
• Adjustable divergence on all models
• Transmission greater than 98%
• AR coated for 1064 nm, 532 nm, and 355 nm |
 |
Zoom Beam Expander for Refractive Beam Shaper |
• Compatible with Refractive Beam Shapers |
| Objectives |
Features |
 |
Microscope Objective Lenses |
• Microscope objectives
• Infinity corrected objectives
• Visible AR coated |
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Reflective Microscope Objectives |
• Wide spectral band
• Long working distances
• High numerical apertures
• Zero chromatic aberration
• Negligible coma, spherical, and astigmatic aberrations |
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UV Microscope Objective Lenses |
• UV fused silica lenses
• Infinity corrected, ideal for laser applications
• Excellent wavefront quality
• High damage threshold |
 |
Laser Diode Objective Lenses |
• Ideal for collimating or focusing
• Diffraction limited performance
• AR coated for high transmission
• Excellent wavefront quality
• Corrected for laser diode cover glass
• Microscope objective-type housing |
| F-Theta Scan Lenses |
Features |
 |
F-Theta Scan Lenses |
• Optimized and coated for 1064nm, 532nm, and 355 nm
• Average transmission efficiency greater than 97%
• ± 1.5% EFL and working distance tolerance
• Replaceable protective window included for all models |
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Telecentric F-Theta Scan Lenses |
• Telecentric design for normal incident beam across the scan field
• Optimized and coated for 1064nm, and 532nm
• Transmission efficiency greater than 96%
• ± 1.5% EFL and working distance tolerance
• Replaceable protective window included for all models |