The new OSTAR Compact LED from OSRAM Opto Semiconductors is accommodated in the same 3.9 x 3.6mm
package size as the previous version, enabling small projectors to be designed
with higher brightness without increasing their size. Instead of 4A, the new
LED can now be pulsed up to 6A, achieving 350 lm in amber, 600lm in green and
165 lm in blue in pulsed mode (typically 120Hz, 2 ms, Ts= 25C).
Thanks to a new packaging material, its thermal resistance has been reduced to
3K/W, compared to 6K/W for the previous version, allowing heat to be dissipated
performance of the high-power OSTAR Compact LED is achieved with a 2 mm² chip
that benefits from improved epitaxial processes and a more even power
The new LED with the higher current capability extends
the portfolio of OSTAR Compact LEDs for projection applications. The OSTAR
portfolio includes LEDs with chips having sizes of 750 x 750µm and 1 x 1mm
available in all colors.
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.