Design
- Diffraction-limited design
- 5 element design reduces internal focus
- Continuous zoom and focus adjustments
- Mechanicals specifically designed to minimize
beam
wander
Other beam
expanders contain 4 lenses consisting of 3 lens groups, the first 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.
At Special Optics, we employ a proprietary 5 lens-element
design with 3 lens groups to reduce the internal focus. Also, we use fused
silica lenses on the two input groups. As a result, our zoom beam
expanders tolerate a very high damage threshold. |
Specifications
|
Expansion Range |
2x-8x Continuous
or
1x-4x continuous |
|
Input Aperture |
10mm Max |
|
Output Aperture |
30mm |
|
Beam Wander |
0.15 mRad for
1-4X Beam Expander
0.3 mRad for 2-8X Beam Expander |
|
Wavefront Distortion |
<1/4 Wave @ 633 nm |
|
Usable Wavelength Range |
see table below |
|
Field of View |
+ / -
0.5 Degrees |
|
Transmission |
>95% |
Damage Threshold
UV & VIS-NIR models |
100 MW/cm2
for 10 ns
pulse width, 1 cm beam
diameter and 10 Hz |
Damage Threshold
IR (CO2) models |
20 kW/cm2
pulsed wave,
1kW/cm2
continuous wave |
|
Expansion Change Time |
< 10 seconds |
|
Usable Temperature Range |
-10 to +50 Celsius |
|
|
Model Number |
Standard Wavelength Ranges |
Price |
Mechanical
Drawings |
Availability |
|
VIS-NIR
56C-30-2-8X @ λ
*VIS-NIR
56C-30-1-4X @ λ |
450-675, 600-900, 800-1200, 1100-1600 nm |
$ 3,450.00
$ 3,450.00 |
56C-30-2-8X.PDF
*56C-30-1-4X.PDF |
Call for Availability
Call for Availability |
|
UV
61C-30-2-8X @ λ
*UV
61C-30-1-4X @ λ |
248-425 nm |
$ 4,350.00
$ 4,350.00 |
61C-30-2-8X.PDF
*61C-30-1-4X.PDF |
In Stock for 355nm
Call for Availability |
|
IR (CO2)
53C-30-2-10X @ λ
*IR (CO2)
53C-30-1-5X @ λ |
9.3 or 10.6 um |
$ 4,450.00
$ 4,450.00 |
53C-30-2-10X.PDF
*53C-30-1-5X.PDF |
Call for Availability
Call for Availability |
|
Notes:
*Items highlighted in red represent New Product.
λ - Specify wavelength(s)
when ordering.
High Damage and Double 'V' coatings available.
Please call for price and delivery. |