The BZ series of Zoom Variable Beam Expanders are available with 2X - 8X continuously variable beam expansion ratio. For the zoom models, the expansion ratio can be adjusted from the minimum to the maximum value via one full rotation of the zoom control. Once the desired magnification is obtained, a setscrew can be tightened to lock the magnification.

Our Zoom Variable Beam Expanders include the working wavelength 9.6um, CO2 10.6um, YAG 1064nm, 532nm, 355nm.

Zoom Beam Expanders

 

1064nm BX-Z

Part No. Magnification Input CA (mm) Output CA (mm) Length (mm)
BX-Z-1064-2-8X 2-8 10 30 143-150
BX-Z-1064-2-8X-B 2-8 13 60 170

 532nm BX-Z

Part No. Magnification Input CA (mm) Output CA (mm) Length (mm)
BX-Z-532-2-8X 2-8 10 30 132
BX-Z-532-2-8X-B 2-8 11 60 190

 355nm BX-Z

Part No. Magnification Input CA (mm) Output CA (mm) Length (mm)
BX-Z-355-2-8X 2-8 10 30 143-150
BX-Z-355-2-8X-B 2-8 11 60 185-194

CO2 10.6um BX-Z

Part No. Magnification Input CA (mm) Output CA (mm) Length (mm)
BXZ-10.6-2-6X 2X-6X 16 96 206-213
BXZ-10.6-2-8X 2X-8X 10 36 168-172

Note:BX is Beam Expanders; Z is zoom; B is big output diameter

355nm Beam Expanders are manufactured by UV grade Fused Silica that permit high energy transmission with low insertion loss over a usable spectral for 355nm. These beam expanders have adjustable lens spacing and no focused retro-reflections.

Beam Expanders for UV 355nm Beam Expanders for UV 355nm 

P/N WL MAG IN D
mm
OUT D
mm
L1
mm
L2
mm
D
mm
Thread
IN
Thread
OUT
BX-355-2X 355 2X 8 18 57.71 9.78 30 M22X0.75 M30X1
BX-355-3X 355 3X 8 18 58.40 10.46 30 M22X0.75 M30X1
BX-355-4X 355 4X 8 18 58.07 10.14 30 M22X0.75 M30X1
BX-355-5X 355 5X 8 18 57.58 9.64 30 M22X0.75 M30X1
BX-355-6X 355 6X 8 18 57.96 10.02 30 M22X0.75 M30X1
BX-355-8X 355 8X 6 18 58.49 10.56 30 M22X0.75 M30X1
BX-355-10X 355 10X 6 18 58.62 10.69 30 M22X0.75 M30X1
BX-355-15X 355 15X 8 18 99.10 -- 30 M22X0.75 --
BX-355-20X 355 20X 8 30 102.19 -- 45 M30X1 M43X0.75

We manufacture a variety of laser beam expanders for HeNe laser to suit most laser types. Wavefront distortion of less than λ/4 guarantees a minimum focused spot size even at long ranges. The lenses are anti-reflection coated with magnesium fluoride optimized for 632.8 nm, yielding transmission of over 95%.

These beam expanders can be conveniently attached to most HeNe lasers with the 1-32 accessory thread and are equipped with precision beam centering adjustments to compensate for slight decentration of the entering laser beam.

Beam Expanders for HeNe 632.8nm 

 

P/N WL MAG IN D
mm
OUT D
mm
L1
mm
L2
mm
D
mm
Thread
IN
Thread
OUT
BX-633-2X 633 2X 8 18 59.65 11.72 30 M22X0.75 M30X1
BX-633-3X 633 3X 8 18 60.42 12.48 30 M22X0.75 M30X1
BX-633-4X 633 4X 8 18 60.06 12.12 30 M22X0.75 M30X1
BX-633-5X 633 5X 8 18 59.57 11.63 30 M22X0.75 M30X1
BX-633-6X 633 6X 8 18 59.92 11.99 30 M22X0.75 M30X1
BX-633-8X 633 8X 6 18 60.43 12.50 30 M22X0.75 M30X1
BX-633-10X 633 10X 6 18 60.65 12.71 30 M22X0.75 M30X1
BX-633-15X 633 15X 8 18 99.10 -- 30 M22X0.75 --
BX-633-20X 633 20X 8 30 102.19 -- 45 M30X1 M43X0.75
BX-633-30X 633 30X 8 32 149.81 -- 45 M22X0.75 M43X0.75
BX-633-40X 633 40X 8 100 232.6 -- 112 M22X0.75 --

Beam expander 532nm green laser are widely used in industrial laser marking/engraving and cutting system where the requirement to the laser beam quality is very critical.

Beam Expanders 532nm  Beam Expanders 532nm

P/N WL MAG IN D
mm
OUT D
mm
L1
mm
L2
mm
D
mm
Thread
IN
Thread
OUT
BX-532-2X 532 2X 8 18 59.26 11.33 30 M22X0.75 M30X1
BX-532-3X 532 3X 8 18 60.02 12.09 30 M22X0.75 M30X1
BX-532-4X 532 4X 8 18 59.66 11.72 30 M22X0.75 M30X1
BX-532-5X 532 5X 8 18 59.17 11.23 30 M22X0.75 M30X1
BX-532-6X 532 6X 8 18 59.52 11.59 30 M22X0.75 M30X1
BX-532-8X 532 8X 6 18 60.10 12.17 30 M22X0.75 M30X1
BX-532-10X 532 10X 6 18 60.24 12.30 30 M22X0.75 M30X1
BX-532-15X 532 15X 8 18 99.10 -- 30 M22X0.75 --
BX-532-20X 532 20X 8 30 102.19 -- 45 M30X1 M43X0.75
BX-532-30X 532 30X 8 32 149.81 -- 45 M22X0.75 M43X0.75
BX-532-40X 532 40X 8 100 232.6 -- 112 M22X0.75 --

The beam expander is widely used in industrial laser marking/engraving and the cutting system where the requirement to the laser beam quality is very critical.

Beam Expanders for YAG 1064nm  Beam Expanders for YAG 1064nm

P/N WL MAG IN D
mm
OUT D
mm
L1
mm
L2
mm
D
mm
Thread
IN
Thread
OUT
BX-1064-2X 1064 2X 8 18 60.53 12.59 30 M22X0.75 M30X1
BX-1064-3X 1064 3X 8 18 61.27 13.34 30 M22X0.75 M30X1
BX-1064-4X 1064 4X 8 18 60.87 12.94 30 M22X0.75 M30X1
BX-1064-5X 1064 5X 8 18 60.39 12.45 30 M22X0.75 M30X1
BX-1064-6X 1064 6X 8 18 60.70 12.76 30 M22X0.75 M30X1
BX-1064-8X 1064 8X 6 18 61.16 13.23 30 M22X0.75 M30X1
BX-1064-10X 1064 10X 6 18 61.48 13.54 30 M22X0.75 M30X1
BX-1064-15X 1064 15X 8 18 99.10 -- 30 M22X0.75 --
BX-1064-20X 1064 20X 8 30 102.19 -- 45 M30X1 M43X0.75
BX-1064-30X 1064 30X 8 32 149.81 -- 45 M22X0.75 M43X0.75
BX-1064-40X 1064 40X 8 100 232.6 -- 112 M22X0.75 --