Abstract: The invention provides an intraocular balloon and associated devices such as an intraocular balloon insertion guide and a holder. They enable a surgeon to readily perform an operation for correcting retinal detachment and to lighten a burden imposed on a surgical patient to a great extent. The intraocular balloon is characterized by having a gas injection valve; the intraocular balloon insertion guide facilitates the insertion of the intraocular balloon into an eye; and the holder holds the intraocular balloon and the intraocular balloon insertion guide, and is fixed onto the eyeball. The invention is also directed to a surgical procedure for retinal detachment using such devices.

Abstract: An electrically scanning microwave radiometer for measuring the brightness temperature of an object by performing a conical scan of the object. The microwave radiometer comprises a torus-type reflector and an array of radiators. The radiators are grouped to form a plurality of subarrays. The beams formed by the respective subarrays are correspondingly switched to perform the conical scan on the surface of the object. The signals received by the radiators during the conical scan are arithmetically operated to obtain the brightness temperature value of the object located within the width of the antenna beam.