ID 207102639 © Pyrajak | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
axis beam camera concave convex cross curvature curve design detail diagram distance divergence divergent drawing education educational focal focus focusing geometry glass graphic graphics illustration image labeled lacture length lens light magnify meniscus mirror object optic optics physics planogram point ray refraction schematic scheme school science spread surface symmetry transparent type vector vitreous widener