Abstract: A fusion welding method includes the steps of: generating a hybrid laser beam obtained by mixing a low-intensity laser beam with a first high-intensity laser beam and a second high-intensity laser beam; moving the hybrid laser beam along a gap between a first member and a second member; and melting the first member and the second member in the periphery of the gap with the hybrid laser beam, and filling the gap with the melt of the first member and the melt of the second member to weld the first member and the second member, wherein the first high-intensity laser beam is applied to the area of the first member to which the low-intensity laser beam is applied, and the second high-intensity laser beam is applied to the area of the second member to which the low-intensity laser beam is applied.

Abstract: An electrode group 4 formed by stacking or winding a positive electrode plate 1 and a negative electrode plate 2 with a separator 3 interposed therebetween, is housed in a battery case 5. An opening of the battery case 5 is sealed with a sealing plate 10. A lead 11 extending from one of the positive and negative electrode plates in the electrode group 4 is laser-welded to the sealing plate 10 by application of a laser beam 12 having a spot diameter smaller than a thickness of the lead 11.

Abstract: A method for manufacturing an optical unit (10) having an optical element (22) and a support member (12) supporting the optical element. According to the method, at least one of the optical element (22) and the support member (12) is deformed, securing the optical element (22) and the support member (12) together.

Abstract: In an optical component where fixation of resin welding is performed by emitting a laser beam to screwing parts of an inner lens barrel and an outer lens barrel after focus adjustment, the laser beam is emitted to melt and cure a joint of the screwing part of the inner lens barrel and the screwing part of the outer lens barrel by 0.5 mm to 3.0 mm in a direction parallel to a direction of protrusion of the inner lens barrel relative to the outer lens barrel, so that welding and fixation are completed.

Abstract: A ratio of a length of resin flow-in to a radius of an optical component is not larger than 0.25, and gas is blown directly against a laser irradiated part radially and diagonally downward from an upside position corresponding to a center of the optical component. A laser line beam having longer sides extending in a direction along an inner wall is cast by a laser radiation device while being moved in the direction of the longer sides.

Abstract: Provided is a method for manufacturing an optical unit (10) having an optical element (22) and a support member (12) supporting the optical element. According to the method, at least one of the optical element (22) and the support member (12) is deformed, securing the optical element (22) and the support member (12) together.

Abstract: In an optical component where fixation of resin welding is performed by emitting a laser beam to screwing parts of an inner lens barrel and an outer lens barrel after focus adjustment, the laser beam is emitted to melt and cure a joint of the screwing part of the inner lens barrel and the screwing part of the outer lens barrel by 0.5 mm to 3.0 mm in a direction parallel to a direction of protrusion of the inner lens barrel relative to the outer lens barrel, so that welding and fixation are completed.

Abstract: A ratio of a length of resin flow-in to a radius of an optical component is not larger than 0.25, and gas is blown directly against a laser irradiated part radially and diagonally downward from an upside position corresponding to a center of the optical component. A laser line beam having longer sides extending in a direction along an inner wall is cast by a laser radiation device while being moved in the direction of the longer sides.

Abstract: A method for forming a CdTe film of good quality by an improved close-spaced sublimation process is disclosed. This method comprises: a step of applying a paste which contains material for CdTe semiconductor on a supporting member, thereby to form a coating film which contains the material for the semiconductor on the surface of the supporting member; a step of closely arranging the supporting member and a substrate on which a CdTe film is to be formed, to make the coating film to face the surface of the substrate; and a step of forming a CdTe film on the substrate, by heating the coating film and the substrate, and causing the material for the semiconductor in the coating film to evaporate.

Abstract: A device for driving a liquid crystal display device, including, a segment signal output circuit for supplying segment signals to segment electrodes of the liquid crystal display device, a level of each of the segment signals being changed according to a level of corresponding one of data signals received by the segment signal output circuit, and a back plate signal output circuit for supplying a back plate signal having a predetermined level to back plate electrodes of the liquid crystal display device in succession. The segment signal output circuit is adapted to shift a level of each of the segment signals, for a short period of time at least shortly prior to change of level of corresponding one of the data signals, to such a value that electric charges charged up in a corresponding liquid crystal cell are discharged within the short period of time.