An introduction to the science & practice of photography (1895)
Jones, Henry Chapman, 1854- · London, Iliffe, Sons & Sturmey Ltd · leaf 78
74 THE SCIENCE AND PRACTICE OF PHOTOGRAPHY. incidence and reflection are equal applies to all reflecting surfaces, and it is therefore not difficult to trace upon paper the effect of any mirror upon the direction of any ray of light. In the figs. 6, 7, and 8, the arcs that stand … Fig. 8. for curved mirrors are struck from the points marked^C,^ and this point is called in each case the centre of curvature of the mirror. S'"^ If a luminous point is placed at the centre of curvature of the mirror, the rays emanating from the point travel in the direction of radii of the sphere…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-266-117.webp)
