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Tel:     +86-431-87034313

Fax:    +86-431-87033597

Email: cnioptical@cnilaser.com

Beam Expander

 

A beam expander is any optical system designed to increase the diameter of a laser beam. In most cases, the term is taken to mean a telescope designed to take a small-diameter collimated beam input beam and produce a larger diameter collimated output beam, thus reducing the divergence of the beam. The beam expander consists of a negative input lens and a positive objective. The expansion factor is the ratio of the focal length of the two lenses.

Features

Applications

Low power loss

Good output collimation

Precision laser machining: capable to provide a high power density focal spot.

Able to withstand laser power of more than 1000 W

Laser range finder: capable to provide a highly collimated beam.

Adjustable divergence angle of 18 to 32 mrad with the variable beam expanders

Combining with a spatial filter, able to modify laser power distribution.

BE Series Beam Expander for Beam Size of ≤2mm Diameter

Specifications

 

Part No.

Expansion ratio

Dimensions  (mm)

BE-2x

2X

Φ25*50

BE-3x

3X

Φ25*50

BE-5x

5X

Φ25*50

BE-10x

10X

Φ30*65


BEW Series Beam Expander for Beam Size of 4-10mm Diameter

Specifications

 

Part No.

Expansion ratio

Dimensions  (mm)

BEW-2x

2X

Φ29*51

BEW-3x

3X

Φ36*74

BEW-5x

5X

Φ46*109

BEW-10x

10X

Φ86*197

 
Note:  These series beam expander are offered for UV, visible and infrared lasers respectively. Please let me know which wavelength you want before order.

  Beam Expander for Laser Marking


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Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China
Email: cnioptical@cnilaser.com   International Tel: +86-431-87034313   Fax:+86-431-87033597   
 
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