Image

[im’-aj) [imago, a likene ]. I. A more or le accurate representation of an object. 2. The picture of an object formed by rays of light reflected, refracted, or pa ed through a small aperture. I., After-. See After-image. 1., Direct, or I., Erect, a picture obtained from rays that have not yet come to a focus. I., Inverted, one turned upside down. Nearly all real images are inverted. I., Real, that formed at the place where the rays meet. I., Virtual, an apparent image formed in the direction in which the rays enter the eye, the rays not actually converging at the point where the image is seen. The images formed by plane or convex mirrors and by concave lenses, when the object is placed within the principal focus, are virtual. 328