An electroacoustic transducer 1 is provided with a diaphragm 20 which is made of a magnetic material, and to which a magnetic piece 21 is fixed; a magnetic core 22 which is placed in proximity to the diaphragm 20; a coil 23 which supplies an oscillating m...
|4171886||Camera for instant pictures|
A camera body has mounted on it a lens mount which is pivotable relative to the camera between an operative and an inoperative position. A mechanism in the camera is activated and transports film from the camera film chamber through the camera during move...
|3961344||Dual field viewfinder|
A viewfinder of the inverted Galilean type, for use with a photographic camera having a pair of interchangeable objective lenses, comprising a viewfinder lens, an eyepiece having two reticles formed thereon, a fixed mirror frame and a movable mirror frame...