Museum of the Broadcast Television Camera

EMI Super Emitron Television Tube

The EMI Super Emitron Television Tube
Through the glass bulb the rectangular target mosaic can be seen rotated from the horizontal, this is to correct for the rotation of the electron image in the magnetic field applied to the image section.

 

The Super Emitron had an Image Section in front of the target and this meant that the image from the lens was formed on the smaller photo target which was much nearer the lens thus removing many of the constraints suffered by the Emitron lenses. Additionally it was some 10 times more sensitive (200 Lux @ f2) enabling the use of telephoto lenses in poor light conditions.

A fuller description of the operation of the Super Emitron tube can be found in Wikipedia and in Television Engineering, by Amos & Birkinshaw, pub. by ILiffe 1953, pages 68 to 78.

 

The Super Emitron tube was patented by Lubszynski, H. G. and Rodda, S. in 1934.
British Patent No. 446661