Diaphragm (optics) 1889 "Dictionary of Photography" (see figure), but disappeared after Ernst Abbe's theory of stops unified these concepts. According to Rudolf Kingslake, the inventor of the iris diaphragm is unknown. Others credit Joseph Nicéphore Niépce for this device, around 1820. Mr. J. H. Brown, a member of the Royal Microscopical Society, appears to have invented a popular improved iris diaphragm by 1867. Kingslake has more definite histories for some other diaphragm types, such as M. Noton's adjustable "cat eye" diaphragm of two sliding squares in 1856, and the Waterhouse stops of John Waterhouse in 1858. Diaphragm (optics) In optics, a diaphragm
Flower A. Newhouse 9, 1994) was born with eye infections and had her eyes removed surgically at the age of five and went to live in a school for the blind. She married Albert William Carson (June 13, 1893 - Jan. 6, 1975) on Dec. 22, 1933 in Los Angeles, California. According to her mother, as a child Flower first began to reveal the abilities of clairvoyance, which were prevalent throughout her life. From childhood Flower revealed that her life purpose was to live and teach the way of Christian discipleship and esoteric Christian mysticism through an ever deepening experience of God and