How I spent my summer vacation: volunteering in the tropics. Three student friends of SPIE Fellow Dr. Carmiña Londoño will have some great stories to tell about their summer break as they go back to school in the next few weeks. They spent a week this summer as volunteers teaching optics and other topics at an orphanage in the Dominican Republic. Supported financially by SPIE, the international society for optics and photonics, and the Optical Society of America, and by Kreischer Optics who provided lenses and prisms, Londoño’s group added an optics component to the arts and crafts, sports, language classes, and other activities organized by Orphanage Outreach . The students -- Lillian, Nora, and Matthew -- also spent part of the week hoeing, weeding, and preparing the orphanage’s gardens for future planting. For Londoño and Lillian -- her daughter -- this was the second such trip, and part of their tradition of taking a one-week volunteer vacation each summer. “For r