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F-Theta Scan Lens for CO2 Laser 10.6um/9.4um

 

F-Theta Scan Lens are commonly used in conjunction with galvanometer scanning mirrors in laser engraving, cutting, and marking systems. The reason it being named as F-theta is due to the radialimage height equals to focal length of the lens multiplied by the angle of the chief ray makes in the object space. Hence, from the image height, the distortion of the image can be calculated at each field of interest. Typically the F-theta distortion of this lens is kept lessthan 1% so that it produces a precise spot on the flat field on image plane.

Specifications

Diameter Tolerance +0.0, -0.13mm
Thickness Tolerance ±0.25mm
Paraxial Focal Length ±2%
Centration 3 arc minutes
Clear Aperture >>90%
Surface Figure λ/4 per 1” @632.8nm
Surface Quality 40-20 scratch and dig
AR/AR Coating R<0.2% per surface @10.6um or 9.4um

F-Theta Scan lens F-Theta Scan lens

SL1 Series - F-Theta Scan Lens 10.6um/9.4um

Part No. EFL (mm) Scan Field (mm) Input Beam (mm) Focus Spot (um) Scan Angle (±°) BFL (mm) Lens Dia (mm) ET (mm) Wavelength (um)
SL1-10.6-F75Z-48 75.0 50x50 10.0 97.0 28.0 75.9 48.0 3.0 10.6
SL1-10.6-F100Z-48 100.0 69x69 12.0 107.4 28.0 100.9 48.0 2.4 10.6
SL1-10.6-F150Z-48 150.0 107x107 12.0 161.0 29.0 152.7 48.0 3.1 10.6
SL1-10.6-F200Z-48 200.0 140x140 15.0 171.0 28.0 204.3 48.0 3.0 10.6
SL1-10.6-F200Z-70 200.0 140x140 16.0 160.0 28.0 208.8 70.0 2.8 10.6
SL1-10.6-F250Z-65 250.0 175x175 20.0 180.0 28.0 253.4 65.0 3.2 10.6
SL1-10.6-F250Z-48 250.0 175x175 15.0 214.0 28.0 256.0 48.0 3.2 10.6
SL1-10.6-F300Z-48 300.0 210x210 12.0 322.0 28.0 308.6 48.0 3.9 10.6
SL1-10.6-F360Z-48 359.1 250x250 12.0 385.0 28.0 369.2 48.0 4.0 10.6
SL1-10.6-F420Z-70 420.0 295x295 20.0 268.0 28.0 430.0 70.0 3.5 10.6
SL1-10.6-F420Z-75 420.0 300x300 20.0 268.0 28.0 430.0 75.0 3.4 10.6
SL1-10.6-F435Z-48 433.0 300x300 12.0 463.5 28.0 444.0 48.0 3.0 10.6
SL1-10.6-F450Z-48 448.5 320x320 12.0 478.0 28.0 462.0 48.0 2.8 10.6
SL1-10.6-F480Z-48 480.0 335x335 12.0 515.0 28.0 492.0 48.0 2.6 10.6
SL1-10.6-F480Z-70 480.0 350x350 20.0 305.0 28.0 496.3 70.0 3.9 10.6
SL1-10.6-F550Z-60 561.0 400x400 20.0 360.0 28.0 561.0 60.0 3.8 10.6
SL1-10.6-F573Z-62 573.0 365x365 20.0 364.0 25.0 591.0 62.0 4.0 10.6
SL1-10.6-F573Z-48 573.0 415x415 12.0 614.0 28.0 591.0 48.0 4.2 10.6
SL1-10.6-F574Z-75 574.0 400x400 20.0 364.0 28.0 591.0 75.0 3.8 10.6
SL1-10.6-F620Z-70 620.0 450x450 20.0 396.4 28.0 636.0 70.0 3.9 10.6
SL1-10.6-F720Z-75 720.0 500x500 20.0 454.6 28.0 741.0 75.0 2.7 10.6
SL1-10.6-F720Z-48 720.7 531x531 12.0 783.0 28.0 741.0 48.0 3.0 10.6
SL1-10.6-F740Z-88 740.0 540x540 20.0 476.3 28.0 759.0 88.0 4.2 10.6
SL1-10.6-F830Z-75 830.0 600x600 20.0 532.4 28.0 848.0 75.0 4.0 10.6
SL1-10.6-F977Z-48 976.0 715x715 12.0 1576.5 28.0 990.5 48.0 3.1 10.6
SL1-10.6-F1100Z-76 1100.0 700x700 25.0 558.7 25.0 1138.0 76.0 5.2 10.6
SL1-10.6-F1150Z-48 1150.0 800x800 12.0 1231.0 28.0 1177.0 48.0 3.0 10.6
SL1-10.6-F1191Z-48 1191.6 770x770 12.0 1276.0 25.0 1220.0 48.0 3.0 10.6
SL1-10.6-F2122Z-48 2128.0 1385x1385 12.0 2283.0 25.0 2176.0 48.0 3.5 10.6
SL1-9.4-F100Z-48 100.0 69x69 12.0 107.4 28.0 100.9 48.0 2.4 9.4
SL1-9.4-F150Z-48 150.0 107x107 12.0 161.0 29.0 152.7 48.0 3.1 9.4
SL1-9.4-F200Z-48 200.0 140x140 15.0 171.0 28.0 204.3 48.0 3.0 9.4
SL1-9.4-F250Z-48 250.0 175x175 15.0 214.0 28.0 256.0 48.0 3.2 9.4
SL1-9.4-F250Z-65 250.0 175x175 20.0 180.0 28.0 253.4 65.0 3.2 9.4
SL1-9.4-F300Z-48 300.0 210x210 12.0 322.0 28.0 308.6 48.0 3.9 9.4
SL1-9.4-F360Z-48 359.1 250x250 12.0 385.0 28.0 369.2 48.0 4.0 9.4
SL1-9.4-F435Z-48 433.0 300x300 12.0 463.5 28.0 444.0 48.0 3.0 9.4
SL1-9.4-F450Z-48 448.5 320x320 12.0 478.0 28.0 462.0 48.0 2.8 9.4
SL1-9.4-F480Z-70 480.0 350x350 20.0 305.0 28.0 496.3 70.0 3.9 9.4
SL1-9.4-F573Z-48 573.0 400x400 12.0 614.0 28.0 591.0 48.0 4.2 9.4

 

Remark: The spot size is simulation result, it does not reflect the actual spot size on workpiece as the simulation does not consider the material properties and how the laser being absorbed during machining.