| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compound optical element having favorable bonding strength free from cracks or peeling. <P>SOLUTION: The compound optical element 1 is configured by bonding a base lens 10 and a UV-curing resin 11, wherein a difference in the water absorption between the base lens 10 and the UV-curing resin 11 is ≤1%, and a difference in the coefficient of thermal expansion between the base lens 10 and the UV-curing resin 11 is ≤1×10<SP>-5</SP>. <P>COPYRIGHT: (C)2009,JPO&INPIT |
