Laser Beam Expanders
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Beam expanders are useful
laser accessories when the beam diameter must be increased. However, their main
function is in decreasing the divergence of laser beams which are to be
projected over long distances. These precision beam expanders have been
designed for use with HeNe lasers but they are also useful for any laser
working in the visible part of the spectrum (400-700nm). They are provided
with a standard accessory thread and a mounting ring which adapts readily to
most commercially available lasers. Three fixed ratio expanders are offered
covering 3X, 5X and 10X expansion ratios. There is also a zoom beam expander
which can be adjusted for ratios from 2.5X to 10X. Both the fixed and
variable ratio beam expanders have a focus adjustment. A fiducial mark shows
the position for precise expansion but the focus adjustment can be used to
compensate for inherent divergence in the beam and focus the distant laser
beam more precisely. Once set, a lock screw may be used to secure the focus
ring in place. |
Specifications &
Tolerances
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Magnification: |
adjustable
by ± 5% |
Surface
quality: |
20-10 |
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Barrel
dimensions: |
±0.5mm |
Coating: |
Broadband
AR 400-700nm |
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Centration: |
<3arcmin |
Material: |
Grade A
crown and flint glasses |
Laser Beam Expanders
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Expansion Ratio |
Input Aperture, a (mm) |
Output Aperture, A (mm) |
Barrel Diameter, D (mm) |
Barrel Length, L (mm) |
Prics |
Availability |
PRODUCT NUMBER |
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3X |
3.5 |
15 |
40 |
45-51 |
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from stock |
027-2440 |
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5X |
2.0 |
15 |
40 |
52-59 |
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from stock |
027-2450 |
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10X |
1.5 |
25 |
40 |
111-118 |
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from stock |
027-2460 |
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2.5-10X |
2.0 |
25 |
62 |
139-159 |
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from stock |
027-2470 |
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- |
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- |
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HeNe Adapter |
Inch |
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- |
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from stock |
027-2465 |
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HeNe Adapter |
Metric |
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- |
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from stock |
027-2466 |
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Merci de contacter Infos Photon Lines pour tout renseignement complémentaire. |
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