The S-200™ ear impression 3D scanner is the new generation of 3D scanners
for ear impressions supplied by 3Shape as part of its integrated production
system for hearing aids and earmoulds. It is primarily directed at shell
laboratories and manufacturing facilities with a large scanning need.
The S-200™ 3D scanner rapidly creates accurate digital 3D copies of
the customer's ear impression. The 3D models can directly be used in
our modeling software, ShellDesigner™
and EarMoulDesigner™
and the resulting shells or earmould can be automatically manufactured
on 3D printers.
The S-200™ 3D scanning system runs on a standard Windows™-based PC
(included with the system) and requires no specific technical expertise
to be operated.
Overview of the 3D model creation process with the S-200™ scanner: The original ear impression (left) is captured as a point cloud (middle). The resulting 3D model (right) is a perfect replica of the original impression
The scanning of an ear impression is performed using an optical scanning system, whereby laser planes are projected onto the ear impression. High-resolution cameras acquire images of the lines thus created on the ear impression. 3Shape's unique image processing software tracks the corresponding lines in each image with subpixel precision.
- User-friendliness - a non-expert user with a minimum of training can easily operate our "one-button" scanning system. To perform a 3D scan, the user merely needs to place the ear impression into the 3D scanner and click on one button. No settings need to be adjusted by the user. The system handles all operations automatically
- Complete geometry in one scan - the scanner is able to capture the full geometry of a full-concha ear impression in one scanning session. This eliminates the painstaking process of having to stitch different scans together; or obtaining scans with occluded areas
- Rotation, translation and tilting of the object - to ensure maximal exposure of the ear impression's geometry to the cameras and lasers, the impression is placed on a rotation plate (360° rotation) and moves along a linear axis (translation) and a secondary rotation axis (tilt). The software also makes sure that the object is moved optimally to cover potentially hidden areas
- Consistent high precision - state-of-the-art projective geometry and a novel calibration of our laser and cameras setup ensure consistently high levels of precision
- Automatic 3D surface creation - the initial output of the scanning process is a point cloud of approximately 200,000 points, depending on the impression. 3Shape's unique surface creation software module then automatically optimizes this data and creates a 3D polygonal model
- Compression - the final surface is reduced to approximately
25.000 triangles ready to be modeled in ShellDesigner™
or EarMouldDesigner™.
It is an accurate replica of the full original impression in a compressed
format, which makes it easy to manipulate, store and transfer
Resolution
Precision
Total scan and surface creation time
Points scanned
Final 3D model
Scan output format
Cameras
Laser
Processing hardware
Interface Standard
Object movement
Operating voltage
Specific user knowledge
0.1 - 0.7 mm (adjustable)
0.02 - 0.05 mm
30 - 90 secs.
app. 200,000
app. 25,000 triangles
STL polygonal model
2
1 x Non-Gaussian line generator
2.8 Ghz Pentium 4, 512 MB RAM
TCP/IP based network
Rotation, translation, and tilting
110/220 V
Not required