F-θ Lens

F-Theta Scanning Lenses are commonly used in laser marking, engraving, and cutting systems. Used in conjunction with a galvanometer, beam expander, and Nd:YAG laser source, F-theta lenses are designed to provide a flat field at the image plane of the scanning system.

Our Nd:YAG F-Theta Lenses feature multiple elements for the ultimate in image resolution. An air-spaced design and high efficiency AR coatings guarantee excellent throughput and durability. An industry-standard M85 threading on all F-theta lenses allows for easy mounting and simple retrofitting of OEM systems.
 

F-Theta Lens λ=355nm
Focus
f		 Working distance
S		 Maximum scanning range [mm²] Scanning angle
θmax[º]		 Incidence beam diameter
Ø[mm]		 Gauss disc of diffusion diameter
[µm]		 Best scanner location
m1/m2[mm]		 Thread sizes
63 59 30x30 ±18 6 10 10/10 M39x1
160 174 110x110 ±28 7 15 16/16 M85x1
 

F-Theta Lens λ=532nm
Focus
f		 Working distance
S		 Maximum scanning range [mm²] Scanning angle
θmax[º]		 Incidence beam diameter
Ø[mm]		 Gauss disc of diffusion diameter
[µm]		 Best scanner location
m1/m2[mm]		 Thread sizes
100 111 70x70 ±28 12 10 16/16 M85x1
160 180 110x110 ±28 12 16 16/16 M85x1
 

F-Theta Lens λ=1064nm
Focus
f		 Working distance
S		 Maximum scanning range
[mm²]		 Scanning angle
θmax[º]		 Incidence beam diameter
Ø[mm]		 Gauss disc of diffusion diameter
[µm]		 Best scanner location
m1/m2[mm]		 Thread sizes
63 59 40x40 ±25 12 10 16/16 M85x1
100 111 70x70 ±28 12 16 16/16 M85x1
160 180 110x110 ±28 12 26 16/16 M85x1
210 250 150x150 ±28 12 34 16/16 M85x1
254 280 175x175 ±28 16 31 16/16 M85x1
330 346 220x220 ±28 16 40 16/16 M85x1
 
Keep in touch with us

Contact us sales@eforcelaser.com.au