DiOptika Beam Expanders - Large Output - 10X Expanders - 15X Expanders - 20X Expanders

DBX Laser Beam Expanders - Compact - Universal

Compact Optical length (103mm - 20X)

Large clear output aperture 47mm

High performance 3 element AR coated design

Wavelength range 405nm - 1100nm with design error lambda / 4

Mounting M4, 8-32 also laser modules to 26mm dia

By simply changing attachment can be changed between 10X, 15X, 20X

Variable focus from 1m to infinity

Contact Us now at beamexpander@dioptika.com for more information

Optional Mounting Base and Rear 10X, 15X and 20X Attachments
(Pictured Left)

          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:

B_L	=	ß + ŲL (0.3048)
B_L	=	Beam Diameter (mm) at distance L
ß	=	Increase in Beam Diameter
	=	Beam Diameter (mm) x Expander Power
Ų	=	Decrease in Beam Divergence
	=	Beam Divergence (mrad) Expander Power
L	=	distance (ft.)