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The lenses selected for
use in this series are our minimum aberration
LLQ-Series. These lenses are in optical
grade fused silica: the multilayer antireflection
coatings are peaked at 1064nm below, and
the pair of lenses will transmit£¾96%
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Laser
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¥ë(nm)
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Nd:YAG
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1064
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*Exceeding
"Maximum Input Beam Diameter" will increase
wavefront distortion beyond ¥ë/4.
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OFR BestForm Laser Lenses,
selected from our LLU-Series, are made in
UV grade fused silica. Lenses are AR coated
at peak wavelength, with transmittance£¾96%
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Laser
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¥ë(nm)
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KrF
Nd:YAG
XeCl
HeCd/N2
XeF
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248
266
308
325/337
351
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¥ë:
When ordering, specify wavelength for AR coatings.
*Exceeding
"Maximum Input Beam Diameter" will increase
wavefront distortion beyond ¥ë/4.
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The simple
telescope body enables adjustment of the spacing between
the lenses for focusing, collimating or diverging.
In
general, we can match any combination of our BestForm
Lenses to meet a very wide variety of conditions and
expansion ratios from 2.5X to 50X The Lenses are multilayer
antireflection coated for peak transmittance of £¾96%
through the pair.
We will specifically fabricate
custom brackets or adapters to fit the telescope to
existing apparatus as required.
The EL-25-series
and ELQ-25-series Telescopes are 1.5¢© diameter X4¢©long
expanding to 7¢©long depending upon lens combinations
required. Likewise, the EL-51-series and the ELQ-51-series
are 2.5¢© diameter x8¢©long expanding to 12¢©long
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¥ë: When ordering, specify wavelength
for AR coatings.
*Exceeding "Maximum Input Beam
Diameter" will increase wavefront distortion beyond
¥ë/4.
Other wavelengths available.
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Laser
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Bandwidth
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Order
as
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Visible
Gas/Dye
NIR
Diodes
IR Diodes
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425-675
nm
550-780 nm
750-950 nm
1250-1550
nm
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-VIS
-VIS
-NIR
-IR
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Lasers
Optics
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Beam
Expanders
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Variable
Zoom Beam Expanders
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Features
. Compatable to Standard Computer
Controlled Actuators
. Minimal Internal Focus for
High Power Use
. Large Input and Output Apertures
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Replaces Several Fixed Wavelength Devices
. Non-Rotating
Lens Elements, Elliminating Beam Wander
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Specifications :
. Wavefront Distortion............
£¼1/4 Wave
. Transmission...........................
£¾ 95%
. Field of View..........................
0.5 degrees
. Usable Wavelength Range.. 450-1100
nm
. Damage Threshold................ 500 MW/Cm2
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