1178 CHAPTE R 37 Â¥ Interference of Light W aves. source produces the original light beam and the two slits ser ve only to separate the. original beam into two parts (which, after all, is what is done to the sound signal from. the side-by-side loudspeakers at the end of the preceding section).
It was after using a camera lucida in 1833 that the the pioneer of photography William Fox Talbot began his attempts to fix images chemically. David Hockney has speculated on how great artists have used the camera lucida in his book 'Secret Knowledge: Rediscovering the Lost Techniques of the Old Masters'. (for a very brief summary of some of these ideas, see his article in RA Magazine from Summer 1999).
The invention of the camera obscura is attributed to the Iraqi scientist Alhazen and described in his Book of Optics (1011-1021). English scientists Robert Boyle and Robert Hooke later invented a portable camera obscura in 1665-1666.In the 1500s many artists, including Michelangelo and Leonardo da Vinci, used the camera obscura to help them draw pictures.nglish scientists Robert Boyle and Robert Hooke later invented a portable camera obscura in 1665-1666. In the 1500s many artists, including Michelangelo and Leonardo da Vinci, used the camera obscura to help them draw pictures.