The invention includes light optic means for making available a series of arrays of information bearing light beams from a conventional light beam deflector at a series of secondary display positions on a light responsive medium so as to extend the resolution and beam deflection capabilities many times beyond the practical limits of the conventional light beam deflector.

This invention provides an optical fan system for projecting a planar fan of light against a surface. A source of collimated light is passed into an edge face bridging between two cylindrical concentric reflective surfaces defining outer surfaces of a translucent or transparent body. The light refracts through the edge face, and then is multiply reflected and refracted between the concentric cylindrical surfaces, with total reflection occurring at the internal surface and partial refraction occu…

A shutter, for an optical detector head having a sleeve containing a focusing lens adjacent a first sleeve open end for directing incident radiation onto a photocell positioned at the other sleeve end, and includes a rotatable spherical shutter member of an optically opaque material and having a diametric aperture normally axially aligned between the photocell and the lens. A mask member having a central aperture of lesser diameter than the diameter of the shutter member is transversely position…

An organ array comprises a plurality of optical fibers each cut to a different length with the differences between functionally adjacent (i.e., lengthwise consecutive) fibers being uniform. The fibers are arranged in a bundle so that one set of ends of the fibers is terminated in an input plane and the opposite set of ends is terminated in an output plane. Described are several embodiments utilizing the organ array including a passive spatial scanner, optical memory systems, an image converter, …

A laser Doppler homodyne detection system includes transmitting-receiver optics including a roof reflector and a twin off-axis Cassegrain reflector system. BACKGROUND OF THE INVENTION With the development of laser sources with good frequency stability, optical systems for Doppler homodyne detection have become possible. Laser Doppler systems are especially useful for flow measurement, true air speed measurement, vortex detection, moving target indication, and remote atmospheric measurements. In …

Method and apparatus for detecting differences in the wall thickness of a hollow object at various locations around its perimeter. Radiant electromagnetic waves are directed through one side of the object. The intensity of the waves is sensed at two adjacent locations where they emerge from the other side of the object after the waves have passed through two wall portions of the object at different sides thereof. The intensity of said waves at said locations is compared to ascertain any differen…

Reflective optical encoder for monitoring the movement of a machine tool component or the like. The encoder comprises a code disc having a code track thereon in the form of alternating radiation transmissive and radiation opaque areas. A source of radiation and at least two detectors are supported on one side of the code disc while a reflector is supported on the opposite side. Radiation from the source is directed through the code track to the reflector and is reflected off of the reflector bac…

An array of charge storage devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell, is provided on a common semiconductor substrate. Read out of the charges stored in a row of devices is accomplished by obtaining the difference of pairs of signals, one sensed on the row line connecting the selected row of devices and the other of the signals sensed on the row line connecting an adjacent row…

A radiant energy integrating meter having one or more parallel connected reversed biased radiant energy sensor cells connected to an integrating circuit having an integrating capacitor. A trigger circuit having a differential amplifier, connected to the integrating capacitor, which drives a further amplifier, is adapted to close a first switch such as a silicon controlled rectifier in response to a predetermined integrated sensor current. A counter circuit is coupled to the first switch and adva…

An optical scanning system having a rotatably driven, curved reflective sace with a predetermined pattern of reflective and non-reflective portions annularly arranged near the circumference of the surface. The emission source, such as an infrared source, is focused onto an area of the surface in the ring of the portions such that when the surface is rotated the portions are rotated under the image and as each reflective portion is brought into alignment with the image, the image is reflected to …