Dielectric and Lens

Lens and Dielectric of higher index

Drag the lens into and out of the dielectric interface region and watch the converging lens become diverging. Assumes a value of 1.8 (crown glass) for the lens and 2.0 for the dielectric.

If the dielectric is made to be  +1.5, the lens will remain converging. Try it.

Script Example

<script language="JavaScript">
function dl() {