Original sentence: In April 1925, Dieckmann]] and Hell submitted a German patent application for a electronic imaging device they dubbed "Lichtelektrische Bildzerlegerröhre" ("photoelectric image dissector tube"), for which a patent was issued in October 1927.Some sources define the image dissector to be specifically Farnsworth's device, with magnetic focusing, a feature lacking in the Dieckmann/Hell design.Tubes that deflect a full "electron image" from a photocathode across a fixed scanning aperture and anode have come to be known as "image dissectors", based on the use of the term by Philo Farnsworth, who made the first working electronic television pickup tube, and on the use of a similar term (in German) by Max Dieckmann and Rudolf Hell, who submitted the first patent application for such a device
Edited sentence: An image dissector is camera tube that creates an "electron image" of a scene from photocathode emissions which pass through a scanning aperture and between deflection plates to an anode.Dieckmann and Hell submitted their application to the German patent office in April 1925, and a patent was issued in October 1927.German inventors Max Dieckmann and Rudolf Hell, who were among the first to develop such a device, had titled their 1925 patent application "Lichtelektrische Bildzerlegerröhre" ("Photoelectric Image Dissector Tube"), and American television pioneer Philo Farnsworth, who made the first working version of a dissector tube, affixed the title "Image Dissector" to a 1933 patent application for the device.The term may apply specifically to a device employing magnetic fields to keep the electron image in focus, an element lacking in Dieckmann and Hell's design, and in Farnsworth's initial design, first tested successfully in 1927