Special Optics 53C-30-2-10, 61C-30-1-4X, 56C-30-1-4X, 56C-30-2-8X, 61C-30-2-8X Specifications

NEW

Motorized Zoom Beam Expanders

New & Improved

Now available: the new 1x to 4x expansion model with
improved 0.15 mRad beam wander.

3D Layout of 30 MM Zoom Beam Expander

Design

At Special Optics, we employ a proprietary 5 lens-element
design with 3 lens groups to reduce the internal focus.
We use fused silica lenses on the two input groups. As
a result, our zoom beam expanders tolerate a very high
damage threshold. Other beam expanders contain 4 lenses

consisting of 3 lens groups, the rst being positive followed

by a negative group, then a positive group for collimation.
This design causes a focus into the second lens group,
consequently increasing the possibility of damage to the
system.

Design highlights:

• Diffraction-limited design

• 5 element design reduces internal focus

• Mechanical design minimizes beam wander

• Continuous zoom and focus adjustments

Features

• Default expansion settings pre-programmed

• User dened custom expansion settings

• User-controlled focus adjustment

• Windows compatible

• RS232 Serial Interface

• Compact design

• GUI (.DLL) can be addressed from C++ or other languages

Model Number Wavelength Ranges

56C-30-2-8X @ l

New

56C-30-1-4X @ l

61C-30-2-8X @ l

New

61C-30-1-4X @ l

53C-30-1-5X @ l

53C-30-2-10 @ l

Specify wavelength when ordering
High damage and double ‘V’ coatings available

VIS-NIR 425-675, 600-900,
800-120, 1100-1600 nm

UV 248-425 nm

IR (CO

) 9.3 or 10.6 mm

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Custom Design Solutions

We specialize in optimizing lens systems for our customers. Please contact us for special requirements. We pride ourselves
on being the optical engineering arm for our customers.

Special Optics, 315 Richard Mine Road, Wharton, New Jersey 07885
Phone [phone] Fax [phone] www.specialoptics.com E-mail [e-mail]

Specications

Expansion Range: 2X-8X or 1X-4X
Input Aperature: 10 mm maximum
Output Aperature: 30 mm

New

Beam Wander: 0.15 mRad

Wavefront Distortion: <1/4 wave at 633 mm
Field of View: +/- 0.5 degrees
Transmittance: >95%
Damage Threshold (UV & VIS-NIR Models): 100 MW/cm
Expansion Change Time: <10 seconds

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