10X ,15X ,20X & 25X Beam Expanders - (8-12um &3-5um) - 47mm &100mm Clear Outputs
  DBX-8/12 ZnSe laser beam expanders provide a versatile high quality beam expander solution with a large 47mm or 100mm diameter output aperture.They utilise a two element Zinc Selenide design corrected for spherical abberation with a design performance of lambda/10. Expansion ratios are 10X , 15X and 20X which can be changed by simply unscrewing the rear attachment and replacing with a different one. The DBX-Base option provides a flat base with M4 and 8-32 threaded holes and the standard inout holder can clamp onto diameters up to 1" (25.4mm).
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DBX-10X-8/12 Beam Expander

 Beam Expander 3-5micron
  • 10X Laser Beam Expander - (47mm Output)
  • Wavelength range: 3-5microns & 8-12microns
  • 47mm clear output , 5mm clear input
  • Compact Optical length ~ 97mm
  • High quality ZnSe design
  • Design error lambda/10
  • Variable focus via knurled adjustment with locking Mechanism
  • High ~95% throughput
  • Optional flat DBX-Base for M4 & 8-32 mounting
 email
 

DBX-15X-8/12 Beam Expander

 Beam Expander 3-5micron
  • 15X Laser Beam Expander - (47mm Output)
  • Wavelength range: 3-5microns & 8-12microns
  • 47mm clear output , 5mm clear input
  • Compact Optical length ~ 97mm
  • High quality ZnSe design
  • Design error lambda/10
  • Variable focus via knurled adjustment with locking Mechanism
  • High ~95% throughput
  • Optional flat DBX-Base for M4 & 8-32 mounting
 email
 

DBX-20X-8/12 Beam Expander
  • 20X Laser Beam Expander - (100mm Output)
  • Wavelength range: 3-5microns & 8-12microns
  • 100mm clear output , 5mm clear input
  • Compact Optical length ~ 97mm
  • High quality ZnSe design
  • Design error lambda/10
  • Variable focus via knurled adjustment
  • High ~95% throughput
  • Optional flat DBX-Base for M4 & 8-32 mounting
 email
 

DBX-25X-8/12 Beam Expander
  • 25X Laser Beam Expander - (100mm Output)
  • Wavelength range: 3-5microns & 8-12microns
  • 100mm clear output , 5mm clear input
  • Compact Optical length ~ 97mm
  • High quality ZnSe design
  • Design error lambda/10
  • Variable focus via knurled adjustment
  • High ~95% throughput
  • Optional flat DBX-Base for M4 & 8-32 mounting
 email
 

DBXA-10X
  • 10X Attachment (Optional) - (For 47mm DIA Expander)
  • For use with any of the above expanders by unscrewing and replacing rear attachment to change expansion to 10X
 email
 

DBXA-15X
  • 15X Attachment (Optional) - (For 47mm DIA Expander)
  • Can be used with any of the above expanders by unscrewing and replacing rear attcahment to change expansion to 15X
 email
 

DBXA-20X
  • 20X Attachment (Optional) - - (For 100mm DIA Expander)
  • Can be used with any of the above expanders by unscrewing and replacing rear attcahment to change expansion to 20X
 email
 

DBXA-20X
  • 20X Attachment (Optional)- (For 100mm DIA Expander)
  • Can be used with any of the above expanders by unscrewing and replacing rear attcahment to change expansion to 20X
 email
 

DBX-Base
  • DBX-Base (Optional) - (For 47mm DIA Expander)
  • Flat base for use with expanders to provide flat mounting with M4 & 8-32 mounting holes
 email

DiOptika Laser Safety USA

 Need Laser Safety Eyewear to use with your Laser? Then visit Dioptika-Safety USA or Dioptika-Safety Australia DiOptika Laser Safety Australia

Laser Beam-Expander Theory

Laser beam expanders are designed to either decrease the laser's beam spot size at large distances or produce a larger diameter         
collimated laser beam. The main types of beam expanders: Keplerian and Galilean. In its simplest form, the Galilean type consists of a
positive and a negative focal length lens whereas the Keplerian type consists of two positive focal length lenses. Both designs provide 
a certain angular magnification, called the Expander Power. The beam diameter is first increased in size by this power and then the 
beam divergence is reduced by the same power. This combination yields a beam that is not only larger, but one that is also highly
collimated. The result is a smaller beam at a large distance when compared to the laser alone.  See the below equation:

             BL

=

ß + ØL (0.3048)

            BL

=

Beam Diameter (mm) at distance L

           ß

=

Increase in Beam Diameter

=

Beam Diameter (mm) x Expander Power

           Ø

=

Decrease in Beam Divergence

=

Beam Divergence (mrad) Expander Power

           L

=

distance (ft.)

            This equation is an approximation for the collimated output beam size at a given distance.

            In addition, an expanded beam can yield smaller spot sizes when used in combination with additional focusing optics. This is very useful 
in focusing optimization. however, many applications simply require a larger continuous beam. The beam expander power (MP) is equal 
to the ratio of the effective focal length (EFL) of the objective lens to the effective focal length of the entrance optic. The physical separation
between the objective lens and entrance optic is equal to the sum of their back focal lengths (BFL).

            DiOptika’s  beam expanders are of the Galilean type. The advantages of the Galilean design over the Keplerian is that it contains no internal
focal point therefore reducing the length.  In addition to improving beam collimation, DiOptika’s beam expanders can also be used to focus
laser beams.

 

 

 

YAG Laser Beam Expanders, Red Laser Beam-Expanders , Green Laser Beam Expanders , NIR Laser Beam-Expanders , MID & Far IR Laser Beam Expanders , Zinc Selenide Laser Beam-Expanders , UV Laser Beam Expanders and customer laser beam expanders. 248nm - 355nm Laser Beam-Expander , 532nm - 1064nm Laser Beam Expanders , 1300nm , 1550nm , 1700nm Laser Beam-Expander , 3-5um & 10,600nm Laser Beam Expanders , Galilean Beam Expanders. We also offer a custom design of optical systems for use with laser systems. Dioptika Safety provides an extensive range of DiOptika laser safety eyewear covering almost all laser types that can ship anywhere in the world. Laser Safety Eyewear includes: telecom laser safety glasses , Nd:YAG laser safety glasses , Alexandrite laser safety glasses , Nd:YAG Harmonics laser safety glasses , IPL safety glasses , HeNe laser safety glasses , CO2 laser safety eyewear , Argon laser safety goggles , stainless steel patient blockout eyewear , Erbium laser eyewear , Dye laser spectacles , Ruby laser goggles , red and green laser protective eyewear. Other types are availble on request. On this site you will also find general laser safety information resources about the laser safety regulations for most counties around the world.