Real image (such as the images on the right), real rays of light are always represented by full, solid lines; perceived or extrapolated rays of light are represented by dashed lines. A real image occurs where rays converge, whereas a virtual image occurs where rays only "appear" to converge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point and this real image is inverted. As the object approaches the focal point the image approaches infinity, and when the object passes the focal point the image
Seven rays by the artist through the use of gold leaf rather than ordinary oil paint. Only the seven rays are so treated, and while all of the other light sources in the painting cast shadows, the seven rays do not. The Italian secret society of the late 17th century, Knights of the Apocalypse, was founded with the professed aim to defend the Catholic Church against the expected Antichrist, though it was accused of having political motives as well. They wore on their breasts a star with seven rays. Agni is a Hindu and Vedic deity depicted in three forms: fire, lightning