Abstract: The present invention can provide a stamper for minute structure transfer to be excellent in durability. The present invention is characterized by which a minute pattern as formed in one side of a substrate comes in contact with a material to be transferred and the minute pattern is transferred on a resin layer of a surface of the material to be transferred. At least one layer of a thin film is mounted on at least one side of both surfaces of the substrate, the substrate and the thin film are different in a coefficient of linear expansion each other, and the substrate is curved to swell up to be convex in the side of the minute pattern by an internal stress generated in the thin film.

Abstract: A radio frequency (RF) excited waveguide gas laser has a hollow wavegide defined by dielectric or lossy materials and metal electrodes coated by thin films with small absorptions so that the metal electrodes are separated from the filling gas and the waveguide loss is very low. With such thin films on the electrodes, a sealed-off, high-power, compact waveguide gas laser having an extended life is realized.

Abstract: The multi-video recorder incorporates a multiplexing means permitting selection of the video signal from each of plurality of TV cameras according to a predetermined importance or priority and a priority changed due to occurrence of a new event and transmission of the video image thus selected over a single line and recording it by a single video tape recorder by time shared multiplexing the video signal at every frame, field or unit of time. It also can reproduce or demultiplex the video signal recorded as multiplexed, with each designated TV camera or by sequentially selecting the video signal from each TV camera. The system also has a means for inserting in said time shared multiplexed video signal a control signal such as select information, event information, time information or the like, so it can selectively demultiplex the video signals recorded as multiplexed, as desired.

Abstract: A radio frequency (RF) excited waveguide gas laser has a hollow waveguide defined by dielectric or lossy materials and metal electrodes coated by thin films with small absorptions so that the metal electrodes are separated from the filling gas and the waveguide loss is very low. With such thin films on the electrodes, a sealed-off, high-power, compact waveguide gas laser having an extended life is realized.