REFRACTIVE-POWER VARIABLE ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a refractive-power variable element in which chromatic aberration is advantageously corrected. SOLUTION: The refractive-power variable element 100 can change the refractive power by changing each of the shapes of a first interface 107 formed by a first liquid 101 and a second liquid 102 that have refractive indices different from each other and a second interface 108 formed by the second liquid 102 and a third liquid 103 that have refractive indices different from each other. The refractive-power variable element 100 respectively changes the shapes of the first interface 107 and the second interface 108 so that the sign of the refractive power of the first interface 107 and the sign of the refractive power of the second interface 108 differ from each other. COPYRIGHT: (C)2011,JPO&INPIT