A dictionary of photography for the amateur and professional photographer (1889)
Wall, E. J. (Edward John), 1860-1928 · New York : E. & H.T. Anthony · leaf 169
should rarely be used, and a rough, not too white surface is the best. Reflection Of Light. When a ray of light falls upon a mirror, the ray is bent from its original direction into another ; this is said to be reflection. Reflection of light obeys certain well-known laws, the first of which is… … C The reflected ray, ce, is in the same plane as the incident ray, DC, and the angle ecf is equal to the angle dcf. Refraction of Light. When a ray of light passes obliquely from one transparent medium to another it suffers refraction, or is bent out of its course on emerging from that medium.
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
