- Perfect for collimating point sources
- Spherical and chromatic aberration free
- Aluminum overcoated with MgF2 for
high durability
- Standard diameters from 2.5 to 10.0inches
|
Off-axis paraboloids are excellent for collimation
of a point source and for collecting of light from a
distant source. The focal point is located outside of
the collection area so that shadowing is eliminated.
These paraboloids are hand polished from large
blanks of fine-annealed low expansion glass. They are
finished to an accuracy of 
/10 and are provided with a measured
interferogram. The back surface is ground so that when
mounted the mirror normal bisects the angle between
the focal axis and the collimated axis.
These mirrors are coated with protected aluminum to
provide a reflectance of at least 85% over the visible
and near infrared spectrum. Protected gold coatings
are also available upon request for use over the
infrared spectrum.
Specifications & Tolerances
| Surface tolerance: /10 |
Diameter: +0, -0.2mm |
| Surface quality: 60-40 |
Clear aperture: 90% diameter |
| Focal length: +1% |
Material: Low expansion glass |
| Thickness: +0.2mm |
Off-axis distance tolerance: +6, -0mm |
| Durability: to MIL-C-675 |
|
| Reflectance: Protected Aluminum R>85%
(350-1550nm) |
|
Parabolic Mirrorrs
|
Focal
Length |
Diameter, D |
Thickness, te |
Off-axis distance,
OAD |
Off-axis angle,
Ø |
Price |
PART
NUMBER |
|
(m) |
(inches) |
(mm) |
(mm) |
(mm) |
(degrees) |
|
|
|
0.50 |
2.5 |
63.5 |
15.0 |
60 |
6.9 |
CALL |
037-0110 |
|
0.75 |
3.0 |
76.2 |
15.0 |
80 |
6.1 |
CALL |
037-0120 |
|
1.00 |
2.5 |
63.5 |
15.0 |
60 |
3.4 |
CALL |
037-0130 |
|
1.00 |
4.0 |
101.6 |
17.0 |
110 |
6.3 |
CALL |
037-0140 |
|
1.25 |
3.0 |
76.2 |
15.0 |
80 |
3.7 |
CALL |
037-0150 |
| |
|
|
|
|
|
|
|
|
1.25 |
5.0 |
127.0 |
20.0 |
100 |
4.6 |
CALL |
037-0160 |
|
1.50 |
6.0 |
152.4 |
25.0 |
100 |
3.8 |
CALL |
037-0170 |
|
2.00 |
4.0 |
101.6 |
17.0 |
110 |
3.2 |
CALL |
037-0180 |
|
2.00 |
5.0 |
127.0 |
20.0 |
100 |
2.9 |
CALL |
037-0190 |
|
2.00 |
8.0 |
203.2 |
33.0 |
150 |
4.3 |
CALL |
037-0220 |
| |
|
|
|
|
|
|
|
|
2.50 |
10.0 |
254.0 |
45.0 |
175 |
4.0 |
CALL |
037-0230 |
|
3.00 |
6.0 |
152.4 |
25.0 |
100 |
1.9 |
CALL |
037-0240 |
|
4.00 |
8.0 |
203.2 |
33.0 |
150 |
2.2 |
CALL |
037-0250 |
|
5.00 |
10.0 |
254.0 |
42.0 |
175 |
2.0 |
CALL |
037-0260 |
A wide variety of sizes can be supplied but these
popular items are offered as standard. Please call
with your requirements even if you do not see the
exact paraboloid you need
