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Abstract
A 3dMD scanner was used to capture facial features from
different angles of the customer’s head. Once the customers
facial geometry had been captured from different angles it was
reconstructed. Using a the application “GeoMagic”, the facial
scans were manually brought together and aligned . Once
together the facial dimensions would be analyzed then the
frames would be scaled to fit the consumers face. Future
research will focus on the placement of the glasses on the face
to enhance certain desired facial while keeping current with
modern sunglass designs and finding more accurate data
capture methods
Research Question
Will a 3dMD system capture enough data to create a model
for facial analysis to make 3d printed glasses that are
tailored to a consumer’s face?
Preliminary Research
• Protos Eyewear is currently working on providing custom
fitted glasses over the internet using the camera on a
laptop or webcam. Although the designs are limited the
company is still in its infancy and is currently still raising
capital via www.crowdfunding.com.
• A Swedish company ,Luexcel ,is currently in the process of
making 3d printed prescription lenses and they are
currently the only company working on this
manufacturing process.
• 3dMD is a company that provides 3D surface imaging
technology for documenting a patient’s anatomical
features in 3D visualization used for analyzing the human
anatomy and simulating possible treatment results.
References
“3dMD." . N.p.. Web. 20 Nov 2013. <http://www.3dmd.com/>.
“ProtosEyewear." . N.p.. Web. 20 Nov 2013.
<https://crowdfunding.protoseyewear.com/3d-printed-eyeweartailored-to-fit-you/>.
"Luxexcel." . N.p.. Web. 20 Nov 2013. <http://www.luxexcel.com/>.
Process
The concept originally came from my own sunglasses irritating
the bridge of my nose. Then realizing the potential uses of the
3dMD system introduced to in class I wanted to apply the
technology to take precise measurements of a consumers
face. The 3dMD system worked well for capturing the kind of
facial geometry needed for analysis although it required
several captures at different angles. Using the program
GeoMagic, a “re-meshing” of all the different angles proved
difficult due to the manual alignment of the meshes required
in GeoMagic which could potentially hurt the accuracy of the
analysis. Also in order to use the measure function in
GeoMagic I had to make a NURBS(Mathematical Formula
Model) from the existing mesh(Polygonal Model) created by
the 3dMD scans. Once in GeoMagic key points on the face are
measured for a custom fit. Originally the concept was to
individually tailor each piece of the frames. However, due to
my limited experience in CAD frame design I had to resort to
scaling a sunglass “template” to improve the fit of the glasses.
Then the sunglass template of choice is measured then the
ratio of the facial measurements over the frame
measurements is the scale factor for the glasses .
Results
The analysis of the facial features of a consumer was a complete
success but I am still unsure of how accurate of a analysis the
process provided. The sizing of the frame template as a whole
part could be achieved but customizing individual parts of the
glasses such as the bridge and arms could not. Due to the resizing
of the frames to a custom fit it also requires that the lenses that
are custom, currently Luxexcel is the only one with this type of
technology.
Conclusion
My research has provided me with clear and defined answer to
my question. Along with confirmation that it can be accomplished
it also gives great indication that this can be a viable and lucrative
concept that has potential to shape the optical industry.