Beam Samplers0 pages
OPTICAL COMPONENTS
Beam Samplers
Spherical Lenses
Cylindrical Lenses
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•t
t
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t
t
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Lens Kits
Provides a 5% reflected sample of the entire beam
Highly efficient Anti-Reflection coating on the second tt
surface to eliminate ghosts
Available in four standard diameters
Wedged second surface also
available for highly demanding
applications
Surfaces finished to
λ/10 flatness
Standard diameters ttt
from 25.4 to 50.8mm
Achromatic Doublets
Multi-Element
Micro Optics
Mirrors
Prisms
Substrates & Windows
Beamsplitters
Polarizers
Filter & Apertures
About 5% of a beam incident at 45 degrees is reflected from one surface of these BK7
beam samplers. The faces are parallel to within 5arcsec with a highly effective
Anti-Reflection coating on the second surface. This coating eliminates virtually all ghost
image problems. The 5% reflected beam is useful for diagnostic sampling or monitoring
of the optical beam.
Sampling a beam
is an effective way
of providing feedback
information for
stabilization or
calibration. Often
one is tempted to insert
Specifications & Tolerances
a small plane mirror
in an unused or
Surface flatness: λ/10t
Diameter: +0, -0.2mm
Surface quality: 20-10t
Parallelism: ≤5arcsec or 1° wedget
Thickness: ±0.2mmt
Clear aperture: >90% diametert
Bevel: 0.2mm x 45° typicalt
Material: BK7, grade A
Reflectance: Rav =5% at 45°t
Wedge (optional): 1°
vignetted portion of
the beam to
provide the sample.
The danger, of course,
is that the chosen
region may not be
typical of the entire
beam.
Beam Samplers
Diameter, D
(Inches)
(mm)
1.00
1.18
1.97
2.00
25.4
30.0
50.0
50.8
Thickness, t
(mm)
3.0
3.0
5.0
5.0
Price
$ 89.00
$ 95.00
$ 168.00
$ 179.00
PART
NUMBER
038-2450
038-2460
038-2470
038-2480
ORDERING
&
TECHNICAL SUPPORT
(949) 851-5881
FAX (949) 851-5058
E-MAIL
sales@optosigma.com
WEB
www.optosigma.com
For a 1° wedged substrate append -W to part number and add $25 to the price.
Note: Wedged substrates are several mm thicker.
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