Micro Microscope on a Chip With No Lenses
Researchers at Caltech, Pasadena, California have developed a micro-microscope on a chip. The lens-free microscope that they say could be built for about ten dollars.
"The whole thing is truly compact–it could be put in a cell phone–and it can use just sunlight for illumination, which makes it very appealing for third-world applications," said Changhuei Yang, an assistant professor of electrical engineering and bioengineering at the California Institute of Technology and one of the lead developers of the device.
The device uses a screen of tiny holes mounted above a CCD sensor to image liquids flowing through microscopic channels in the chip. Such a microscope chip could provide high-resolution microscopic images in field instruments for tasks such as blood screening and water testing. We’ll talk with one of the inventors of the device about its potential uses.
Listen to the interview conducted by NPR.
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