when it’s too fast to see, and too important not to.®
CASE STUDY
100 Dey Road
Wayne, NJ 07470 USA
+1.973.696.4500
phantom@visionresearch.com
www.visionresearch.com
3
About Vision Research:
Vision Research designs and manufactures high-speed
digital imaging systems used in applications including
defense, automotive, engineering, science, medical
research, industrial manufacturing and packaging,
sports and entertainment, and digital cinematography
for television and movie production.
The Wayne, N.J.-based company prides itself on the
sensitivity, high-resolution and image quality produced
by its systems, robust software interfaces, and reliability
and versatility of its
camera family – all which continue
to stand as benchmarks for the high speed digital
imaging industry.
Vision Research digital high-speed
cameras add a new
dimension to the sense of sight, allowing the user to
see details of an event when it’s too fast to see, and too
important not to ®. For additional information regarding
Vision Research, please visit www.visionresearch.com.
Vision Research is a business unit of the Materials
Analysis Division of AMETEK Inc., a leading
global manufacturer of electronic instruments and
electromechanical devices.
Disclaimer: VRI has not independently verified the accuracy of all
claims in this case study and is not responsible for any factual errors.
Rev ©2008
“Without the help of Vision Research, this physics project would not have
been possible,” said Joselow. “Furthermore, the ease-of-use of such a highperformance
piece of equipment truly took me by surprise. With very little
training, I was able to employ the v7.1 and take full advantage of its full array
of features.”
The Phantom v7.1’s CMOS image sensor also played a significant role
throughout the research experiment. All of Vision Research’s digital
cameras
utilize the company’s own proprietary CMOS sensors, which have been
exclusively designed for high-speed use to balance sensitivity, speed and
resolution. Additionally, unlike a CCD sensor, CMOS will not “bloom” (creating
fringes of light around very bright objects in an image), and the Vision Research
sensors used in its Phantom
cameras are totally immune from multi-panel
imaging artifacts associated with many older generation high speed sensors.
When operating the
camera at high frame rates, a substantial amount of light is
required to adequately expose the images. In the setup used for this research
project, Joselow had access only to the already existing fluorescent lighting in
the facility as well as residual daylight from outside the windows. Nevertheless,
thanks to the high ISO rating of 4800 (monochrome), Joselow was able to
overcome the challenging lighting scenario and effortlessly capture crisp,
clear images.
Added Joselow, “Through this analysis, I found that diagonal stringing can be
used in the game of tennis without compromise in the quality of play, as the
two different stringing techniques brought about identical power and control
data findings. Thus, my project was able to exemplify the concept that diagonal
stringing can be used to reduce vibrations by 40 percent without hampering a
given tennis player’s ability to serve or return the tennis ball during play.”
Tennis Racket
Stringing
Patterns
Phantom v7.1
High-speed Digital Camera
