Abstract: A shield or opaque covering for reducing blooming at low input levels in -dimensional charge-injection devices. Two-dimensional charge-injection devices include X-Y aligned detector elements in which each detector element includes a y-electrode portion and a x-electrode portion, each in the same alignment. Each of the y-electrode portions in the same vertical column is connected to a common conductor to form separate y-electrode column conductors, one for each column of elements. Each of the x-electrode portions in the same horizontal row is connected to a common conductor thereby forming separate rows of x-electrode conductors, one for each row of elements. During fabrication each of the rows of y-electrode portions is permanently covered with a covering which is opaque to the radiation to be detected whereas each of the x-electrode areas is exposed to the radiations to be detected.

Abstract: This system couples light from a single fiber transmission line to a sepae output line which passes some light through the coupler to a single fiber transmission line which transmits the light on over a single optical fiber. A mirror within a portion of the coupler reflects out a portion of the light to the coupler output.

Abstract: An optical coupler system in which optical communications from separate cers are transmitted over separate lines of a single optical fiber to a coupler which combines the information and transmits the combined information over different single fibers to other communication centers.

Abstract: A connector to provide multiple input-output couplings to a multi-mode opal transmission line without interrupting the radiation flow. A local scrambling cylinder is placed between a multiple input-output bundle and a bidirectional T-coupler. A mirrored surface covers an area of the rod leaving uncovered the core area of the bundle that leads to the T. Input light is reflected by the mirror evenly to provide an optical path between the inputs and the outputs without affecting transmission through the T.

Abstract: An optical connector to provide input-output coupling to an optical transsion line without interrupting completely the flow of optical radiation. An optically transparent dielectric block is inserted between portions of a fiber bundle transmission line. The block has one flat side along its length which is bonded to a second material having at least one flat side along its length cooperating with the flat side of the block. The input-output bundles are attached to the second material which has the same index of refraction as the first block.

Abstract: An improved gas-filled proportional counter which includes a resistor netk connected between the anode and cathode at the ends of the counter in order to eliminate "end effects".

Abstract: A device for generating gas at a constant rate for raising a water profiler uring measurement of different parameters of the sea. The device is of a specific construction including a housing with end caps. LiH is placed into the housing and capped. A blasting cap ruptures one end cap permitting water to enter the housing. The water mixed with the LiH generates hydrogen gas and LiOH which provides lift for a profiler. A plurality of the gas generators are assembled onto a profiler for causing the profiler to ascend as many times as the number of devices carried by the profiler.

Abstract: A method of enhancing the tensile strength of carbon fibers of laboratory d commercial materials. Carbon fibers are immersed at ambient temperatures in liquid bromine or bromine dissolved in a solvent within a chemical resistant container for a period of time, the bromine is then removed by flushing with an inert gas. The removed bromine may be recovered and reused by condensing the vapor; small traces of bromine may remain within the fiber. It has been found that the bromine treatment enhances the tensile strength of the treated fiber.