Abstract: The present application relates to a solar array field (100) having an improved configuration, comprising a plurality of vacuum solar thermal panel (1) and a hydraulic circuit (10) for circulating a heat transfer fluid, said hydraulic circuit (10) comprising at least one circulation path (13, 14, 15, 16) connecting a low-temperature inlet (11) to a high-temperature outlet (12), said circulation path (13, 14, 15, 16) comprising a forward portion (15) successively traversing a plurality of vacuum solar thermal panels (1); said circulation path (13, 14, 15, 16) further comprising a return portion (16) connected downstream to said forward portion (15), said return portion (16) traversing the same vacuum solar thermal panels (1) in reverse order.

Abstract: A method for manufacturing a vacuum-tight envelope for a vacuum solar thermal panel includes: joining edge to edge a first metal strip to a second metal strip in order to form a bi-metal strip, and then joining together the opposite ends of said bi-metal strip in order to form a closed loop; after said joining step, forming said first metal strip into a peripheral frame and said second metal strip into a peripheral belt; after said joining and forming steps, sealing the free edge of the peripheral belt to a glass front plate; after said joining and forming steps, joining a metal bottom plate to the peripheral frame.

Abstract: The present application relates to a vacuum solar thermal panel with pipe housing (1) for a solar absorber pipe (10) of the type comprising at least a base portion (2) and a retention element (3) for the pipe (10). Advantageously according to the invention, the retention element (3) is in the form of a fork and has an elastic behavior when forced by the pipe (10). The vacuum solar thermal panel with pipe housing (1) according to the invention avoids the risk of a vertical movement of the pipe and then of the solar absorber being associated to the pipe while allowing an easy insertion or mounting of the pipe itself during the assembly or manufacturing of the vacuum solar thermal panel.

Abstract: The present application relates to a solar array field (100) having an improved configuration, comprising a plurality of vacuum solar thermal panel (1) and a hydraulic circuit (10) for circulating a heat transfer fluid, said hydraulic circuit (10) comprising at least one circulation path (13, 14, 15, 16) connecting a low-temperature inlet (11) to a high-temperature outlet (12), said circulation path (13, 14, 15, 16) comprising a forward portion (15) successively traversing a plurality of vacuum solar thermal panels (1); said circulation path (13, 14, 15, 16) further comprising a return portion (16) connected downstream to said forward portion (15), said return portion (16) traversing the same vacuum solar thermal panels (1) in reverse order.

Abstract: A method for manufacturing a vacuum-tight envelope for a vacuum solar thermal panel includes: joining edge to edge a first metal strip to a second metal strip in order to form a bi-metal strip, and then joining together the opposite ends of said bi-metal strip in order to form a closed loop; after said joining step, forming said first metal strip into a peripheral frame and said second metal strip into a peripheral belt; after said joining and forming steps, sealing the free edge of the peripheral belt to a glass front plate; after said joining and forming steps, joining a metal bottom plate to the peripheral frame.

Abstract: The present application relates to a vacuum solar thermal panel with pipe housing (1) for a solar absorber pipe (10) of the type comprising at least a base portion (2) and a retention element (3) for the pipe (10). Advantageously according to the invention, the retention element (3) is in the form of a fork and has an elastic behaviour when forced by the pipe (10). The vacuum solar thermal panel with pipe housing (1) according to the invention avoids the risk of a vertical movement of the pipe and then of the solar absorber being associated to the pipe while allowing an easy insertion or mounting of the pipe itself during the assembly or manufacturing of the vacuum solar thermal panel.

Abstract: An improved color picture tube, operable in a multistandard television receiver, includes a viewing screen, a shadow mask and an electron gun for generating and projecting three electron beams through the shadow mask and onto the screen. The screen includes phosphor lines that extend in a first direction. The electron beams are subject to deflection in the first direction and in a second direction, that is substantially perpendicular to both the first direction and the phosphor lines. The shadow mask includes elongated slit-shaped apertures that are aligned in columns that substantially parallel the phosphor lines. The adjacent apertures in each column are separated from each other by tie-bars in the mask, and the tie-bars in one column are offset from the tie-bars in adjacent columns in the first direction. The improvement includes the tie-bars in alternate columns lying on substantially straight lines that form an angle of approximately 2 degrees with respect to the second direction.