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
She Has a Name (film) Matthew, scouted locations in Cambodia in preparation for the film. Principal photography on the film began in November 2015 in Bangkok, Thailand and ended on January 22, 2016. She Has a Name (film) <br>She Has a Name is a 2016 Canadian drama thriller film directed by Daniel Kooman and Matthew Kooman and written by Andrew Kooman, based on the play of same name by Andrew. The film stars Will Yun Lee, Eugenia Yuan, Teresa Ting, Gil Bellows, and Giovanni Mocibob. In February 2012, Andrew Kooman was adapting a screenplay version of his play "She Has a Name". The idea of