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| Our
very popular FRINGE MITE is ideal for customers who specialize in
smaller components. With its 1/20 wave fused silica reference flat,
Zoom optics, and high resolution CCD camera, the FRINGE MITE provides the
higher magnification that is so important when evaluating small parts.
Vertical
format
The
vertical format of the FRINGE MITE is very convenient and ideally
suited for a wide variety of applications from small precision lapping
and optical fabrication operations to the quality control departments and
R & D laboratories of large industries. The large inch gap between
the interferometer reference surface and the integral tilt-table allows
the interferometer to accommodate test pieces such as long laser rods,
gauge blocks, and optical assemblies. Small footprint — big value!
With
its compact 10” x 14” footprint, simplicity, and affordable price, the
sturdy FRINGE MITE and our PHASE MITE
Phase Shifting Interferometer offer the best values of any small Fizeau
interferometers that are available today. |
 |
 |
The
basic FRINGE MITE Model 2V consists of the interferometer itself
and the video monitor that displays the interferograms for the routine
inspection of surface flatness. For current prices click on
the Price List link at the left or contact us today.
For
high contrast, ultra-sharp interferograms, it's very hard to beat GRAHAM
Interferometers! |
TYPICAL INTERFEROGRAM
|
SPECIFICATIONS
|
BENEFITS
|
| 2-inch
aperture (50.8 mm) |
Ideal
size for measuring small components |
| 1/20
wave fused silica reference surface |
High
accuracy |
| Rugged
construction |
High
stability |
| Vertical
Orientation |
Easy
to use. No special mount for test piece. |
| Two
spot alignment |
For
quick setup on each new part tested |
| Dithered
HeNe Laser source (632.8 nM) |
Sharp,
speckle-free images |
| Illumination
/ Contrast control |
Quick
adjust lever |
| Sturdy
Integral Tip / Tilt table (6-inch diameter) |
Fine
pitch screws for easy adjustment |
| CCD
Camera 768(H) x 494(V) pixels |
High
resolution |
| Live
fringe output |
For
quick inspection |
| 9-inch
diagonal black and white video monitor |
For
high contrast interferograms |
| Quick
Zoom Optics (3x) |
Thumb
wheel control |
| Focus |
Thumb
wheel control |
| Maximum
Test piece thickness 8 inches |
Large
work space for testing assemblies |
| Dimensions
(LxWxH} 14.2 x 10 x 34 inches |
Small
footprint |
| Weight
40 lb (18.1 kg) |
Easily
moved to other location. |
| Power
Requirements 115 V 60 Hz or 240 V 50 Hz |
Wired
with proper plug for user's power source |
| Simple
design, simple to operate |
Low Cost
-- Big Value |
| SIMPLE
OPERATING PROCEDURE FOR THE MODEL 2V INTERFEROMETER
To
operate the Model 2V FRINGE MITE interferometer, test pieces are
simply placed upon the tilt table with no need to mount them, resulting
in very substantial time savings as well as the elimination of the mounting
accessories normally required when using horizontal interferometers.
The
Model 2V FRINGE MITE interferometers are designed for ruggedness and
ease of use. With only a couple of hours of practice, an operator
can readily become proficient in the manipulation of the instrument's simple
controls. |
| ALIGNMENT
MODE
The
sample to be evaluated is placed on the tilt-table, and if no reflection
is observed on the video monitor, the Zoom lens is adjusted into macro
position. This displays a wider field of view and the return reflection
can be seen. The tilt-table is then adjusted to bring the reflected
image into coincidence with the central alignment spot. At this point,
the Zoom lens can again be adjusted to an appropriate image size.
Fringes should already be visible on the monitor. |
VIEWING
MODE
Further
adjustment of the tilt-table will reduce the number of fringes to produce
the desired interferogram. Subsequent evaluation of similar parts
usually does not require the Alignment Mode. On placing the sample
on the tilt-table, the operator can immediately observe fringe patterns
and make adjustments accordingly.
For
visual evaluation of surfaces flatter than one fringe, we suggest
displaying 4 or 5 fringes on the monitor and then utilizing the Fringe
Analysis methods that we have outlined in our tutorial Fringe
Interpretation |
| Here
is a link to our PHASE MITE Interferometer,
Model
2VP, the Phase version of the FRINGE MITE.
Download
a PDF file of the FRINGE MITE's Specifications
For
Further Information, Prices, Delivery call Gordon Graham today at (818)
700-1263 |
GRAHAM
OPTICAL SYSTEMS, 9530 Topanga Canyon Blvd., Chatsworth, CA 91311
E-mail
techinfo@grahamoptical.com
Copyright
© 2005 Graham Optical Systems All Rights Reserved
Durango
is a trademark of Diffraction International
This page last updated June 19, 2008 |
