SavvyInspector™ Technical Specification
SavvyInspector
(c) 2007-2014 Savvy Optics Corp.  All rights reserved.
The inspection station from Savvy Optics allows an objective measurement of
scratch and dig visibility.  Available in multiple configurations, including standard
and high-resolution, and large stage options.  
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TM
The SavvyInspector™ provides software assisted scratch/dig evaluation of
flat optical surfaces, eliminating the subjectivity of human surface quality
inspection. The instrument is designed specifically to reproduce the
conditions of an in-reflection visual inspection described in Appendix C of
MIL-PRF-13830B, “General specification governing the manufacture,
assembly, and inspection of optical components for fire control
instruments.”  The factory calibrated inspection head of the
SavvyInspector™ uses invariant illumination and detection optics and
propriety analysis software, allowing objective, repeatable, and recordable
evaluation of scratch/dig surface quality.
System Operation
A typical inspection involves a  visual scan of the surface using a high-
intensity fiber lamp, to generate a quick surface map of imperfections that
are to be evaluated.  When mapping the surface, a qualified inspector can
also record the scratch lengths to be to be used for accumulation.  The part
is then loaded into the SavvyInspector™ and each defect is evaluated
based on the selected calibration standard.  Defect images can be stored if
desired.  The operator then enters the values of the surface imperfections
onto the surface map or into the SavvyAccumulator™, a free-ware
spreadsheet also provided with the instrument, which reports whether the
part passes or fails the surface quality inspection.  The accumulator page
can be printed or saved into the same location as the defect images for
future review.
The SavvyInspector™ operator interface is designed for easy factory-floor
operation.  Inspection mode allows the operator to perform a surface quality
scratch or dig evaluation based on a pre-recorded calibration file.  There
are no knobs to turn, keys to press, or adjustments required; the operator
simply uses the manual x-y stage to locate the desired defect on the real-
time viewing screen, and read the scratch/dig value off the screen in real-
time. The resultant image file can be stored for later review or printed to be
included in an inspection report.
Instrument Calibration
The SavvyInspector™ software comes
from the factory with calibration files based
on all the most common and respected
comparison standards manufactured by
Brysen Optical, Davidson Optronics, and
Jenoptik. Sets of calibration artifacts have
been sequestered in order to guarantee
instrument to instrument agreement during
the manufacture of each SavvyInspector™.
If the user needs a scratch inspection done to a standard which is not in
the factory calibrations library, a custom calibration file can be created.  
The tool owner just enters the password protected calibration mode,
presents the SavvyInspector™ with the desired comparison artifact, and
enters the measured visibility into the appropriate data field for that scratch
number.  The calibration data can then be saved and accessed from the
inspection mode.  No changes can be made to factory calibration data.
Screen shot from v5 software
Scratch/Dig Standards Supported
 MIL-PRF-13830B
 MIL-C-675C
 ANSI/OEOSC OP1.002:2009
Visibility Method
*NEW* ISO 10110-7 mode!
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Scratch and Dig
Revolution Presentation
Takaki and Aikens,
"Objective Scratch and
Dig Measurements"
Scratch and Dig Revolution
Objective Scrathc and Dig Measurements - Takaki 2012