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Product Name: Precision Optical Flats
Product Description
An Ocean Optics Optical Flat is a finely polished flat surface used as a
reference against which the flatness of a test surface may be compared. We offer
single-sided optical flats in either fused silica or Zerodur®. Additionally, the
flats can be enhanced with an aluminum coating to increase contrast and improve
the visual reference. Starting at $200, our 32 different flats range in size
from 1" to 6" in diameter and are available in 1/20 wave, 1/10 wave or 1/4 wave
flatness accuracies.
Features
- Easy-to-use
- Provides immediate results
- Available in 1/20l, 1/10l or 1/4l accuracies
- Optional aluminum coating increases contrast
Ocean Optics Optical Flats can be used to visually inspect optical components
such as mirrors, filters, prisms and windows.
When an Ocean Optics Optical Flat is placed in contact with a test surface
and viewed with a monochromatic light, an interference pattern of light and dark
bands is formed. The shape of this interference pattern provides an accurate
visual representation of the flatness of the test surface. A curved interference
pattern indicates that the flatness of the test surface is less than that of the
reference surface. Evenly spaced interference patterns indicate that the test
surface is equal to or higher than that of the reference surface.
Based on the application requirements, users can choose between 1/20l, 1/10l and
1/4l accuracies. For instance, if the test surface is flatter than 1/4l , then a
more precise 1/10l flat is required to display a change in the interference
pattern.
Users can also choose between flats made of fused silica or Zerodur. Fused
silica has a low thermal expansion of 0.55 x 10-6 per ºC and is highly resistant
to abrasions. Zerodur is a yellow-tinted clear glass ceramic that exhibits a low
thermal expansion of 0.10 x 10-6 per ºC.
Optical flats can lose their degree of precision with repeated use. Ocean Optics
can recalibrate and repolish your Ocean Optics Optical Flat for a small fee.
Please contact an Applications Scientist for more information on this service.
Single-sided Optical Flats - 1/10l
| Item Code |
Diameter |
Center
Thickness |
Material |
Flatness |
Price |
| FLS-10-SS |
1.0" |
0.5" |
Fused
Silica |
1/10l |
$200 |
| FLZ-10-SS |
1.0" |
0.5" |
Zerodur |
1/10l |
$200 |
| FLS-20-SS |
2.0" |
0.5" |
Fused
Silica |
1/10l |
$290 |
| FLZ-20-SS |
2.0" |
0.5" |
Zerodur |
1/10l |
$290 |
| FLS-40-SS |
4.0" |
0.75" |
Fused
Silica |
1/10l |
$650 |
| FLZ-40-SS |
4.0" |
0.75" |
Zerodur |
1/10l |
$650 |
| FLS-60-SS |
6.0" |
1.0" |
Fused
Silica |
1/10l |
$1,200 |
| FLZ-60-SS |
6.0" |
1.0" |
Zerodur |
1/10l |
$1,200 |
Single-sided Optical Flats - 1/20l
| Item Code |
Diameter |
Center
Thickness |
Material |
Flatness |
Price |
| FLS-12-SS |
1.0" |
0.5" |
Fused
Silica |
1/20l |
$225 |
| FLZ-12-SS |
1.0" |
0.5" |
Zerodur |
1/20l |
$225 |
| FLS-22-SS |
2.0" |
0.5" |
Fused
Silica |
1/20l |
$350 |
| FLZ-22-SS |
2.0" |
0.5" |
Zerodur |
1/20l |
$350 |
| FLS-42-SS |
4.0" |
0.75" |
Fused
Silica |
1/20l |
$ 825 |
| FLZ-42-SS |
4.0" |
0.75" |
Zerodur |
1/20l |
$ 825 |
| FLS-62-SS |
6.0" |
1.0" |
Fused
Silica |
1/20l |
$1,395 |
| FLZ-62-SS |
6.0" |
1.0" |
Zerodur |
1/20l |
$1,395 |
Single-sided Optical Flats - 1/4l
| Item Code |
Diameter |
Center
Thickness |
Material |
Flatness |
Price |
| FLS-14-SS |
1.0" |
0.5" |
Fused
Silica |
1/4l |
$170 |
| FLZ-14-SS |
1.0" |
0.5" |
Zerodur |
1/4l |
$170 |
| FLS-24-SS |
2.0" |
0.5" |
Fused
Silica |
1/4l |
$230 |
| FLZ-24-SS |
2.0" |
0.5" |
Zerodur |
1/4l |
$230 |
| FLS-44-SS |
4.0" |
0.75" |
Fused
Silica |
1/4l |
$530 |
| FLZ-44-SS |
4.0" |
0.75" |
Zerodur |
1/4l |
$530 |
| FLS-64-SS |
6.0" |
1.0" |
Fused
Silica |
1/4l |
$1,025 |
| FLZ-64-SS |
6.0" |
1.0" |
Zerodur |
1/4l |
$1,025 |
Aluminum-enhanced Single-sided Optical Flats -
1/10l
|
Item Code |
Diameter |
Center Thickness |
Material |
Flatness |
Price |
|
FLS-10-SSM |
1.0" |
0.5" |
Fused Silica |
1/10l |
$250 |
|
FLZ-10-SSM |
1.0" |
0.5" |
Zerodur |
1/10l |
$250 |
|
FLS-20-SSM |
2.0" |
0.5" |
Fused Silica |
1/10l |
$330 |
|
FLZ-20-SSM |
2.0" |
0.5" |
Zerodur |
1/10l |
$330 |
|
FLS-40-SSM |
4.0" |
0.75" |
Fused Silica |
1/10l |
$ 825 |
|
FLZ-40-SSM |
4.0" |
0.75" |
Zerodur |
1/10l |
$ 825 |
|
FLS-60-SSM |
6.0" |
1.0" |
Fused Silica |
1/10l |
$1,325 |
|
FLZ-60-SSM |
6.0" |
1.0" |
Zerodur |
1/10l |
$1,325 |
Aluminum-enhanced Single-sided Optical Flats -
1/20l
| Item Code |
Diameter |
Center
Thickness |
Material |
Flatness |
Price |
|
FLS-12-SSM |
1.0" |
0.5" |
Fused
Silica |
1/20l |
$270 |
|
FLZ-12-SSM |
1.0" |
0.5" |
Zerodur |
1/20l |
$270 |
|
FLS-22-SSM |
2.0" |
0.5" |
Fused
Silica |
1/20l |
$400 |
|
FLZ-22-SSM |
2.0" |
0.5" |
Zerodur |
1/20l |
$400 |
|
FLS-42-SSM |
4.0" |
0.75" |
Fused
Silica |
1/20l |
$875 |
|
FLZ-42-SSM |
4.0" |
0.75" |
Zerodur |
1/20l |
$875 |
|
FLS-62-SSM |
6.0" |
1.0" |
Fused
Silica |
1/20l |
$1,665 |
|
FLZ-62-SSM |
6.0" |
1.0" |
Zerodur |
1/20l |
$1,665 |
Aluminum-enhanced Single-sided Optical Flats -
1/4l
| Item Code |
Diameter |
Center
Thickness |
Material |
Flatness |
Price |
|
FLS-14-SSM |
1.0" |
0.5" |
Fused
Silica |
1/4l |
$210 |
|
FLZ-14-SSM |
1.0" |
0.5" |
Zerodur |
1/4l |
$210 |
|
FLS-24-SSM |
2.0" |
0.5" |
Fused
Silica |
1/4l |
$255 |
|
FLZ-24-SSM |
2.0" |
0.5" |
Zerodur |
1/4l |
$255 |
|
FLS-44-SSM |
4.0" |
0.75" |
Fused
Silica |
1/4l |
$615 |
|
FLZ-44-SSM |
4.0" |
0.75" |
Zerodur |
1/4l |
$615 |
|
FLS-64-SSM |
6.0" |
1.0" |
Fused
Silica |
1/4l |
$1,100 |
|
FLZ-64-SSM |
6.0" |
1.0" |
Zerodur |
1/4l |
$1,100 |
Optical Flats Specifications
|
Surface Quality: |
60-40 |
|
Wedge: |
<5.0' |
|
Tolerance on CT: |
+/- 0.04" |
|
Tolerance on Diameter: |
+/- 0.01" |
Material Specifications
| |
Fused Silica |
Zerodur® |
| Refractive
Index: |
1.458nd |
1.542nd |
| Abbe #: |
67.7vd |
56.2vd |
| Density: |
2.20 g/cm3 |
2.53 g/cm3 |
| Exp.
Coefficient: |
0.55 x 10-6
per 1/C |
0.10 x 10-6
per 1/C |
Company Details
Ocean Optics is a leading supplier of solutions for optical sensing – fundamental methods of measuring and interpreting the interaction of light with matter. We enable diverse applications in medical and biological research, environmental... more
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