Diaphragm (optics) the lens. The centre of the diaphragm's aperture coincides with the optical axis of the lens system. Most modern cameras use a type of adjustable diaphragm known as an iris diaphragm, and often referred to simply as an iris. See the articles on aperture and f-number for the photographic effect and system of quantification of varying the opening in the diaphragm. A natural optical system that has a diaphragm and an aperture is the human eye. The iris is the diaphragm, and the opening in the iris of the eye (the pupil) is the aperture. An analogous dev in a
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