SavvyInspector™
SIF-4 Technical Specification
SavvyInspector
(c) 2007-2011 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 manual,
motorized, and with a large stage.  
Inquire for quote.
TM
Software Assisted
Scratch Visibility
Measurements
The SavvyInspector™ model SIF-4
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 calibration mode
Scratch/Dig Standards Supported
 MIL-PRF-13830B
 MIL-C-675C
 ANSI/OEOSC OP1.002:2009
Visibility Method
SIF4 specification sheet
printable SIF-4
technical specification
 software assisted scratch visibility measurements savvyinspector