TECHSPEC® Cr SERIES LENSES
Compact Ruggedized (Cr) for Shock and Vibration
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Vorum had been researching CAD/CAM as
a more precise and efficient way to design
and make prosthetics and orthotics for more
than a decade before it opened for business.
Saunders gave the first public demonstration
of a computer-aided design and manufacturing system for P&O professionals in 1983.
While Vorum was in the process of
developing a portable, handheld 3D struc-tured-light scanner that would allow P&O
professionals to take advantage of CAD technology in speeding up the process of making
prosthetics and orthotics by eliminating the
need for plaster casts.
The new product, called Spectra, was
designed to be used in tandem with an LED
projector and a single camera to capture a
3D image. Along with Vorum’s seven-axis
robotic carving system, it utilizes a touch
screen and software customized for carving prosthetic and orthotic shapes. Spectra also creates electronic files to make up
an easily accessible library of images and to
document how a patient’s shape and volume
changes over time.
The projector is situated at one end of the
Spectra, with the camera at the other end.
The projector projects an encoded pattern
onto the body, which the camera records.
The integrated software processes the resulting digital image, allowing the user to take
3D information from the projected pattern
on the body.
While getting Spectra ready for market,
Vorum shopped for a structured light projector that would fit on the scanner and properly illuminate the subject so that the integrated camera could work more efficiently.
Vorum chose to use the SP30 series LED
structured light pattern projector from
Smart Vision Lights (SVL; Muskegon, MI,
Using a 5-watt LED, the SP30 can be
used to project any user-selectable pat-
tern.With an internal current-based LED
driver capable of strobe output, the new
light source met all of Vorum’s compact
size requirements and provided an intense
projected spot size.
“We did not want a laser-based source
because of the additional safety/risk overhead,” said Vorum CTO Ed Grochowski. “It
is also a potential objection to overcome for
our typical customer applications, such as
“Smart Vision Lights’ product offered the
combination of requisite brightness, form
factor, power requirements and size,” added
Grochowski. “These were the main techni-
Along with the SP30’s form factor and
intensity level, Vorum also cited the SP30’s
durability and price in making it the right fit
for the Spectra scanner.
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