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06_MultielementLenses_2013_final.qxd
12/28/2012
2:36 PM
Page 6.21
Optical Coatings Optical Materials
F-Theta Lens
Windows Prisms and Retroreflectors Spherical Lenses
F-Theta Lens
SPECIFICATIONS: F-Theta Lens N-BK7 and N-SF11 1064 nm R ≤ 0.3% per surface at 1064 nm
Cylindrical Lenses
Optical Materials Design Wavelength Antireflection Coating
Multielement Lenses
F-Theta lenses are commonly used in conjunction with galvonometer scanning mirrors in laser marking, engraving, and cutting systems along with Nd:YAG or Fiber Laser Sources. F-Theta lenses provide a flat image field at the plane of interest. Standard features include air-spaced design for high damage threshold, anti-reflection coatings on all surfaces, and M85x1 screw thread for easy fixturing. In addition to the lenses shown below, CVI Laser Optics designs custom lenses for other OEM applications, specifications levels or price ranges. Please contact an Applications Engineer for further information.
Mirrors
$ Provides a flat field at the image plane of the scan $ Image velocity is proportional to the angular velocity of the scanning mirror
Beamsplitters
IPS a1-a2
v
D
SL
BFL FFL
Polarization Components
a2
Effective Focal Length Back Focal Length Scan Length Input Beam Diameter Image Spot Size Assembly Diameter Flange Focal Length Scan Angle (8)
Waveplates
EFL BFL SL BD IPS D FFL v
BD
FTL-1064-series F-theta scanning lens From our Shelves to Your Lab – Standard Products for Fast Delivery
Femtosecond Components
F-Theta Lens EFL (mm)
BFL (mm)
FFL (mm)
Scan Length (mm)
Input Beam Diameter (mm)
Scan Angle
Image Spot Size (mm)
a1/a2 (mm)
Assembly Diameter (mm)
Max Distortion (%)
PART NUMBER
1064 1064 1064
100.0 160.1 254.4
103.3 180.8 294.5
102.6 184.0 345.2
105.0 149.8 260.2
12.0 12.0 20.0
30.0° 26.8° 29.3°
16* 20 20
28/12 28/12 39.5/19.5
90 90 128.0
<0.3 <1.0 <0.15
FTL-1064-100 FTL-1064-160 FTL-1064-254
Filters and Etalons
Wavelength (nm)
*Over 65x65 mm image size
6.21 FTL
Appendix Index
Multielement Lenses www. cvilaseroptics.com