Changchun New Industries Optoelectronics Technology Co., Ltd.
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Contact CNI
Tel: +86-431-85603799 / 89216078
国内: 0431-87020257 / 89216068
Fax:    +86-431-89216068
E-mail:  sales@cnilaser.com
Beam Expander
 

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

  • Able to withstand laser power of more than 1000 W

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

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

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

  • 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)

For model III & F

For model FN
BE-2x

2X

BE-3x

3X

Φ42*87.8
BE-4x 4x
BE-5x

5X

BE-8x 8x Φ56*147.8 Φ56*150.8
  BE-10x

10X

  BE-15x 15x Φ56*192.8 Φ56*195.8

   
    BE Series Beam Expander Holder
BES-01 BES-02
Dimensions: 75 (L) ×50 (W) ×101 (H) mm3 Dimensions: 75 (L) ×50 (W) ×119 (H) mm3
   

   
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

BEW-5x

5X

  BEW-10x

10X

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

 
Zoom Beam Expander for 532nm
 

Specifications

Part No.

BET-1~4X

BET-2~10X

Expansion ratio

1X~4X

2X~10X

Wavelength

532nm

532nm

Transmission

≥95%

≥95%

Max Input
Beam Diameter

7mm

8.5mm

Max Output
Beam Diameter

18mm

32mm

 Dimensions  (mm)

 
     Adapters
 
      Features
  • External Threads: SM2

  • Outer Diameter: Φ50.8mm smooth surface

  • Internal Bore: Φ37.8 mm

 Dimensions  
     
  Note: Can be transferred to optical components such as adjustment brackets, coaxial systems, etc. with Ø2" optical wall holes or SM2 threaded holes. The clamped parts are mounted by means of a lateral M4 captive head set screw, which prevents the clamped parts from turning and sliding and ensures that the centre of the clamped parts is aligned with the optical axis. the M4 captive head set screw can be adjusted and locked with a 2.0 mm hexagonal spanner.
 
     Mounts
 
      Features
  • Smooth edges and space saving

  • M4 threaded hole at the bottom for attaching an optical connector, inner diameter φ37.7mm

 

 Dimensions

 
     
  Note: The locking screw allows the mounting bracket to be flexibly deformed to lock the mount in place and does not cause any damage to the sleeve due to the length of the screw. The bottom of the mount has M4 threaded mounting holes and can be supported by a Ø12.7 mm stainless steel optical rod or other connection.
 
 

Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China

Tel:+86-431-85603799     Fax:+86-431-89216068     E-mail: sales@cnilaser.com

 
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