The United States developed the artificial insect eye with complete imaging devi
According to the United Kingdom Broadcasting Corporation (BBC) recently reported that American scientists recently developed a camera can be used in ultra-thin artificial insect eye. The dimpled artificial insect eye with a needle mounted on the size of dense area on the 8,500 hexagonal lenses.
According to "Science" Magazine Description, this dome-shaped structure similar to bee's eye. University of California, Berkeley, researchers said, this work also helps clarify how insects developed such complex visual systems. The research paper co-author Luke? Professor Lee said: "Although the insects only come from the single cell development, but they are able to grow and create such a beautiful visual system. I want to figure out without the use of nature expensive manufacturing process the case is how to create layer upon layer of well-ordered structure. "ultimate biological engineering staff came up with a relatively low cost and relatively easy way to create the artificial eye, the eye part is that simulated natural way.
Insect eye is compound eyes, usually hundreds of lens cap shape is the visual units called ommatidia. For example, the dragonflies of each eye from the 30,000 such structure and composition. Each visual unit through a lens into the light, then shaped into a cone of light into the rhabdom is called the channel, rhabdom contains photoreceptor cells. These light-sensitive cells and nerve cells linked to the production of visual images.
Ommatidia are closely placed side by side, raised for the insects to create a wide range of visual areas. Each unit is slightly different direction, which produces a honeycomb structure of the eye mosaic image, this image although the resolution is suitable for detecting relatively low but Mobile Objects. The team first created a miniature re-use of 8,700 one could dent the Mold . The pock-marked and then the hemisphere being filled Epoxy resin , Epoxy When ultraviolet radiation will react to form a variety of chemical properties with a more rigid material. After baking at low temperatures it can be removed from the mold. After this treatment can be given a needle the size of the dome, there are 8,700 on its surface a honeycomb pattern of the bulge. Each convex functions as a lens, light can be converged to the following material.
Some time after the convergence of the light reaction of the resin to form a cone, which will light deeper into the structure. In the light continued to burn out the resin in a way, the formation known as the waveguide with a small insect eyes rhabdom similar channels. The reaction with the polymer light changes the optical properties of the material, which means that all the light into the waveguide is guided along its length come. The result is the formation of a resin covered with micro-lens dome, which has a perfect through pass can be arranged through the dome center light into the light tube. When the light through the lens resulting fire after a light channel, the researchers believe that this initial structure formed in the insect eye can get the image. Lee said: "It seems to me to have a lens first. I do not think you create a visual nervous system first, and then it fanned out again." So far, researchers did not focus on any type of artificial imaging device connected .
But it can be placed in a similar digital cameras attached to the imaging Sensor On the formation of a complete imaging equipment. This allows full range of artificial eye used in micro-surveillance devices, ultra-thin camera and high-speed motion sensors. U.S. Department of Defense Advanced Research Projects Agency study on the artificial eye is very interested in financial support in this regard. Lee that it can also be applied to medicine, such as visceral imaging. In an interview with the BBC News website interview, he said: "You will have wireless communication capabilities of such micro-systems gargling stomach, so the device can get inside your body image and then send back to them in vitro." Lee believed that this work can also develop artificial retina for the blind, he said: "This is our future goal." [Popular Keywords]: Equipment Sensor Imaging Comment Large In Small Recommend Print Forum
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