ARTIFICIAL EYES


U.S. Scientists Create Artificial Eyes
THURSDAY, April 27 (HealthDay News) -- U.S. scientists say they've created super-powerful artificial eyes inspired by those of dragonflies and other insects.

"I've always wanted to create an advanced, three-dimensional optical system, but conventional microfabrication technology is two-dimensional. So, I started thinking about basing a fabrication system on the developmental stages of insect eyes that I'd learned about as a biophysicist and bioengineer," said principal investigator Luke P. Lee, professor of bioengineering at the University of California, Berkley.

The artificial eyes are the first hemispherical, three-dimensional optical systems to integrate microlens arrays -- thousands of tiny lenses packed side by side -- with self-aligned, self-written "waveguides," which are light-conducting channels created by beams of light, Lee explained.

He and his colleagues also created a low-cost, easy-to-replicate technique of creating pinhead-sized polymer resin domes spiked with thousands of light-guiding channels, each topped with its own lens.

The Berkley eyes may eventually be used as cameras or sensory detectors to collect visual or chemical information from a far wider field of vision than is currently possible, Lee said.

Potential applications for the artificial compound eyes include surveillance; high-speed motion detection; environmental sensing; medical procedures (such as image-guided surgery) that require cameras; and clinical treatments that can be controlled by implanted light delivery devices.

The eyes are described in the April 28 issue of the journal Science.


MAHFUZUR REHMAN

تحقیق میں استعمال کی جانے والی آنکھ مکھی کی آنکھ سے مشابہہ ہے اور ساڑھے آٹھ ہزار سے زائد مسدسی عدسوں پر مشتمل ہے۔ جبکہ یہ جسامت میں ایک سوئی کے نا کے سے زیادہ بڑی نہیں۔ فی الحال یہ مصنوعی آنکھ کسی ڈیجیٹل آلے سے منسلک نہیں تاہم اس کے مؤجد امریکی سائنسدانوں کا خیال ہے کہ اس مصنوعی آنکھ کو آگے چل کر ڈیجیٹل آلا ت سے جوڑا جا سکے گا جس سے سرویلنس یا نگرانی کے حوالے سے حیران کن ترقی متوقع ہے۔ محققین کاخیال ہے کہ یہ تحقیق آگے چل کر نابیناؤں کے لیئے مصنوعی پردۂ بصارت یا شکبیہ تیار کرنے میں معاون ثابت ہو سکتی ہے۔



mahfuzur rehman