Diameter
L1 ¼-20
Height
10-24 Mounting
Threads
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• Incident Light is Reflected Back to the Source
• Hollow Lightweight Design
• No Material Absorption or Chromatic
Aberration
Hollow Retroreflectors are constructed of three first
surface mirrors assembled into a corner cube. This
produces a lightweight “hollow corner cube” that is
totally insensitive to position and movement. The result
is that parallel incident light is reflected back to the
source with great accuracy, regardless of the angle of
incidence. Since the optical path is in air, this configuration
eliminates material absorption and chromatic aberrations
present in solid glass prism-type retroreflectors.
The larger housings feature a variety of mounting
holes on the back plate.
Hollow Retroreflectors
Aperture
(mm)
Accuracy Aluminum Gold
Beam Deviation
(arcsec)
Exiting
Wavefront (l) Stock No. Price Stock No. Price
6,35 20,0 0,60 #46-169 €1.060,00 #46-180 €1.080,00
12,7 5,0 0,30 #46-170 €1.105,00 #46-181 €1.135,00
25,4 1,0 0,15 #46-172 €1.105,00 #46-183 €1.135,00
25,4 2,0 0,25 #46-173 €820,00 #46-184 €850,00
25,4 5,0 0,60 #46-174 €615,00 #46-185 €645,00
25,4 30,0 3,50 #46-175 €500,00 #46-186 €530,00
50,8 1,0 0,25 #49-666 €1.350,00 #49-674 €1.410,00
50,8 2,0 0,50 #49-667 €1.105,00 #49-675 €1.135,00
50,8 5,0 1,25 #49-668 €850,00 #49-676 €880,00
50,8 30,0 7,00 #49-669 €645,00 #49-677 €675,00
63,5 1,0 0,35 #46-176 €1.525,00 #46-187 €1.605,00
63,5 2,0 0,60 #46-177 €1.235,00 #46-188 €1.295,00
63,5 5,0 1,50 #46-178 €990,00 #46-189 €1.050,00
63,5 30,0 9,00 #46-179 €790,00 #46-190 €850,00
127,0 1,0 0,65 #49-670 €8.310,00 #49-678 €8.365,00
127,0 2,0 1,25 #49-671 €5.665,00 #49-679 €5.720,00
127,0 5,0 3,00 #49-672 €3.250,00 #49-680 €3.305,00
127,0 30,0 18,00 #49-673 €2.215,00 #49-681 €2.295,00
Substrate: BOROFLOAT®
Dimensions: ±1,6 mm
Surface Quality: 80-50
Dimensions (mm)
CA† DIA L1 L2 B C D
6,4 8,1 8,1* – – – –
12,7 14,6 19,1* – – – M3 x 0,5
25,4 41,3 35,6 49,3 44,5 50,8 1/4-20
50,8 76,2 62,0 79,5 78,7 94,2 1/4-20
63,5 89,4 61,5 79,0 92,3 101,6 1/4-20
127,0 166,7 125,5 150,8 171,5 221,9 1/4-20
* No back plate †Nominal Dimension
Note: Larger retroreflectors have a variety of English and Metric holes for
mounting convenience. See our website for complete specifications.
Hollow Retroreflectors
• Monolithic Aluminum Construction
• Return Beam Accuracy Unaffected by Vibration
• Bare Gold Coated for High Reflectivity in the
Infrared
Replicated Hollow Metal Retroreflectors feature a
monolithic aluminum construction and an integrated
mount to provide return beam performance unaffected
by vibration. These retroreflectors are coated
on their first surface with bare gold, maximizing their
reflectivity in the infrared (IR). Designed to have the
entirety of their optical path in air, these retroreflectors
do not require antireflection coatings for optimal
performance and can be used over wider wavelength
ranges than glass retroreflectors. Replicated Hollow
Metal Retroreflectors are ideal for applications where
an optical path through a glass prism is undesired, reduced
weight is required, or where high shock and
vibration levels are expected. The replication manufacturing
process of these optics enables cost-effective
designs while providing high performance beam
return accuracy.
Diameter Tolerance (mm): +0,03/-0,05
Height Tolerance (mm): ±0,13
Substrate: Aluminum 6061-T6
Surface Quality: 60-40
Mounting Threads: 10-24
Replicated Hollow Metal Retroreflectors
Replicated Hollow Metal Retroreflectors
Diameter
(mm)
Clear Aperture
(mm)
Height
(mm)
Beam Deviation
(arcsec)
Bare Gold
Stock No. Price
12,70 10,16 21,69 5 #15-897 €375,00
12,70 10,16 21,69 10 #15-898 €300,00
19,10 16,51 26,16 5 #15-899 €430,00
19,10 16,51 26,16 10 #15-900 €350,00
25,40 22,86 30,66 5 #15-901 €475,00
25,40 22,86 30,66 10 #15-902 €425,00
38,10 35,56 39,65 5 #15-903 €550,00
38,10 35,56 39,65 10 #15-904 €475,00
NEW
Dia.
CA
L2
Mtg. Hole
B
B
M6 x 1
Mtg. Hole
8.0mm (63.5 CA),
6.4mm (25.4 CA)
D
Mtg. Hole
4-Thru Holes, 7.4mm Dia.
on 'C' Dia. B.C.
Units: mm
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