converging lens Definition

convex lens, sunglass, anastigmatic, compound microscope, focus, positive, focal, converge, convergent, corner, focused, focussed, locus, pencil, pencilled, convergence, convergency, meet, radial, cinquefoil, cornering, incline, swallowtail, fold, linear perspective, perspective, scroll, scrolling, sum, aberration, accommodation, achromat, amplifier, angle, apochromat, apochromatic, astigmatism, bifocal, bifocals, camera, collimator, condenser, diopter, dioptre, divergent, eyes, f-number, f number, fish-eye lens, fisheye lens, focal length, focal point, focal ratio, focimeter, fresnel lens, hyperfocal distance, image, lense, magnification, myopia, negative, oroheliograph, parfocal, point, points, reflex camera, retina, screen, shutter, speed, spherical aberration, stigmatic, stigmatism, stop number, telephoto, telephoto lens, vergency, wide-angle lens, zoom lens, closeup lens, concavo-convex, opsiometer, relative aperture, accommodation reflex, alternating-gradient focusing, anorthic, around, astigmia, azimuth, bein, bipartite, branch, brush, campfire, centre, circus, cohere, coherence, concenter, concentrate,