Abstract: A radar indicator comprising a source of radar image signals having a first (r,.theta.) format and a digital scan converter responsive to the radar image signals for converting the radar image signals from the first format to digital radar image signals having a second (X-Y) format. The digital scan converter includes an image memory for supplying the digital radar image signals having the second (X-Y) format. A source of external video image signals having the second format, including video synchronization signals is provided. A synchronization signal stripper and clock signal generator circuit is responsive to the video synchronization signals of the external video image signals for generating a clock signal synchronized with the synchronization signals of the external video image signals.

Abstract: A modular instrumentation system for monitoring and control of biochemical processes, and in particular of fermentation processes is provided. The system includes a plurality of function monitoring and control modules each including a microprocessor and associated memory devices, manual input devices and an interface for the receipt of sensor signals and the transmission of control signals. The modules for a plurality of functions have substantially common design and are adapted for relatively quick conversion to another function. The system may include an instrument console adapted to receive a plurality of the function monitoring and control modules as well as incorporating provision for sensor inputs, power inputs, one or more recorders, one or more pumps and/or an interface for an external computer.

Abstract: A distributed-optical microfiche reader provided with a lens matrix formed by an array of equidistant individual lenslets, each optically in registration with a respective bit of information in the dissected image pattern selected for projection onto a screen. Each lenslet is separately irradiated and serves to enlarge the related bit and to project it onto a respective screen zone.

Abstract: An electro-optical display device having an assembly of individual, electrically addressable display elements arrayed in a plurality of rows and columns, and a corresponding array of lenses, each of these display elements aligned with and on the optical axis of a respective one of the lenses with its reflective display surface facing the lens, and a screen for receiving the image projected along the plurality of optical axes, the elements displaying the images in accordance with illumination reflected therefrom, wherein the improvement comprises introduction of illumination from the non-reflective side of the display elements into the assembly, and wherein illumination-directing means outside of the optical axes are provided for reflecting the illumination onto the respective reflective display surfaces of each respective display element.

Abstract: An electronically addressed electro optical display device of the type in which an electrical signal containing intelligence is translated into alphanumeric, graphic and pictorial images on an electro optical display includes an array of short focal length lenses, an array of electronically addressed electro optical display elements, each of which is aligned with and in the optical path of a respective one of the lenses and a screen onto which the images on the display elements are projected by the lenses. Where the electro optical display elements are of the passive type in which images are formed by selectively modulating the transmission, reflection or scattering of light, an array of light sources is employed located so as to illuminate the array of electro optical display elements.