| 摘要 |
A camera lens using supercritical fluid is provided to change the refractive index of the fluid with low power by greatly changing the density characteristic of the supercritical fluid even fine temperature change, thereby changing the focal length. A camera lens using supercritical fluid(31) is composed of a package(34) of which the inside is patterned with the shape of the lens; the supercritical fluid filled in the package; a thermoelectric element(33) applying heat to the supercritical fluid; and a buffer(32) buffering the volume change of the supercritical fluid. The package is formed of a glass. The supercritical fluid is carbon dioxide. The pattern formed on the inside of the package is shaped like a convex lens, a concave lens, an aspheric lens, or a cylinder lens.
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