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Topic: Image orthicon tube

	Target detecting and locating system - Patent 4094225
		The operation of image orthicon tube 10 is entirely conventional, tube 10 generating a signal over a line 15 which is connected to identical target detectors 16 and 17.
		In the case where only a single target is sensed by orthicon tube 10, the count contained in Y counter 19 and a target indicating signal are simultaneously applied to memory 21 and read command 22, respectively.
		According to the preferred embodiment of the present invention, the target indicating signal generated by orthicon tube 10 is utilized to move a pair of pistons (not shown) attached to weapon 3 to aim weapon 3 in the direction of target 2.
	www.freepatentsonline.com /4094225.html (4157 words)

	Video camera tube - Wikipedia, the free encyclopedia
		The image dissector had very poor light sensitivity, and was useful only where scene illumination exceeded 685 cd/m², but it was ideal for high light levels such as when engineers wanted to monitor the bright, hot interior of an industrial furnace.
		Image orthicons were used extensively in the early color television cameras, where their increased sensitivity was essential to overcome their very inefficient optical system.
		The vidicon is a storage-type camera tube in which a charge-density pattern is formed by the imaged scene radiation on a photoconductive surface which is then scanned by a beam of low-velocity electrons.
	en.wikipedia.org /wiki/Video_camera_tube (1622 words)

	Television - MSN Encarta
		The image-orthicon tube and the vidicon tube were invented in the 1940s and were a vast improvement on the iconoscope.
		The light image is transformed into an electronic image, which can then be read from the back of the target by a beam of electrons (tiny, negatively charged particles).
		When an image is scanned line by line from top to bottom, the top of the image on the screen will begin to fade by the time the electron beam reaches the bottom of the screen.
	encarta.msn.com /encyclopedia_761559903_2/Television.html (1619 words)

	Video camera tube - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-23)
		The image dissector sees the outside world through a glass lens, which focuses an image through the clear glass wall of the tube onto a special plate which is coated with a layer of caesium oxide.
		This invisible electron reflection is aimed at a small detector circuit which captures the electrons, so that at a given instant electrons from a single small point in the image pass through the aperture to an electron multiplier; this is similar in principle to the image orthicon.
		The image orthicon tube or simply orthicon tube was common until the 1960s.
	dictionpedia.com /en/Video_camera_tube (1004 words)

	Adventures in CyberSound: The Image Orthicon (Television Camera) Tube c. 1940 - 1960
		An Image Orthicon tube is a vacuum tube used in early television cameras to take the television picture.
		The Image Orthicon was developed by the RCA Corporation in the early 1940s.
		The image consists of highly and weakly charged spots that correspond to the bright and dim areas of the scene.
	www.acmi.net.au /AIC/IMAGE_ORTHICON.html (257 words)

	(WO/2001/038918) STEREOSCOPIC TELESCOPE WITH CAMERA (Site not responding. Last check: 2007-10-23)
		For example, the image acquisition device is typically an image orthicon tube, a CCD array, a CMOS array, any other method of recording an image electronically (whether analog or digital), and/or any method of recording photographically such as (cinema or camera) negative or positive film.
		The resulting columnated image is split by the prism 3 into two image light paths, one directed to the right (upward on the page) and one directed to the left (downward on the page).
		The rearward image path passes rough a rear-focus conversion lens 7A and 7B where it is further imaged by an ocular or ocular lens system 8A and 8B to focus on a human eye 9A and 9B for real-time viewing.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/38918.010531&ELEMENT_SET=DECL (4365 words)

	Operating Cameraman Online: From Then to Now
		Until the mid-1960's, the 3-inch image-orthicon (I-O) tube was the central element that permitted the conversion of a real-life image into an electronic signal that could be sent down a wire.
		The tube's service duration was usually between 750 to 1000 hours and when it neared the end of its life, bright images would burn into the photosensitive surface and appear as a ghost when the camera was panned.
		The tube's biggest drawback is its image retention, similar to the old image orthicon tube.
	www.soc.org /opcam/05_w95/mg05_frm_thn_nw.html (1171 words)

	Pioneering in Electronics (Site not responding. Last check: 2007-10-23)
		They viewed the image with semi-detached interest until it suddenly became apparent that the object in the center of the picture, toward which the bomb was heading at high speed, was not the target, but the roof of the trailer in which they sat.
		Within the compact tube were a semi-transparent photo-cathode sensitive to infrared radiation, and an electron lens for imaging the electrons from the photo-cathode onto a small fluorescent screen forming the viewing end of the tube.
		Advances in tube technology also had added a new degree of versatility to electronics through development of new types of storage and cathode ray tubes, both of which are more appropriately discussed within the framework of postwar progress in these fields.
	www.davidsarnoff.org /kil-chapter06.htm (11810 words)

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