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Proceedings Paper

Linear array camera interface techniques
Author(s): Dan DeLuca
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Paper Abstract

In this paper an overview of linear array cameras is given as well as techniques used to digitize the video signal. It begins with a description of charge-coupled devices (CCD) and linear array sensors. A brief survey of manufacturers of sensors cameras and digitizers is also included. Cameras discussed in detail are the Fairchild CAM13O1R Pulnix TJS000 Sierra Scientific 4050 TDI camera Reticon LC1902 and LC1932 color camera. Circular and color arrays made by Reticon are mentioned. Time Delay Integration sensors which can function with lower light levels than traditional linear array sensors are described. The signals used to control the operation of linescan cameras are listed and discussed. These include clock signals start of transfer signals and integrate signals. For example Reticon cameras/sensors require more than one clock signal. Since this paper involves connecting cameras to digitizers the RS-422 signal transmission standard is discussed and some integrated circuits that can be used to transmit and receive this type of signal are given such as 26LS31 and 26LS32 driver/receivers. Once we have a way of transmitting control signals and video signals we must connect the camera to a digitizer. If the digitizer doesn''t have RS-422 connections an interface is needed. An interface can simply be used to convert TTL to RS-422 or it can be a complex circuit producing and allowing variation of integration time and clock frequency. The interface may

Paper Details

Date Published: 1 March 1991
PDF: 8 pages
Proc. SPIE 1396, Applications of Optical Engineering: Proceedings of OE/Midwest '90, (1 March 1991); doi: 10.1117/12.25854
Show Author Affiliations
Dan DeLuca, Epix, Inc. (United States)

Published in SPIE Proceedings Vol. 1396:
Applications of Optical Engineering: Proceedings of OE/Midwest '90
Rudolph P. Guzik; Hans E. Eppinger; Richard E. Gillespie; Mary Kathryn Dubiel; James E. Pearson, Editor(s)

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